CJJ 3-1990 Municipal Drainage Pipeline Engineering Quality Inspection and Assessment Standard
Some standard content:
Industry Standard of the People's Republic of China
Municipal Drainage Pipeline Engineering Quality
Inspection and Assessment Standard
CJJ 3—90
Editing unit: Beijing Municipal Engineering Bureau
Approving department: Ministry of Construction of the People's Republic of ChinaEffective date: August 1, 1991
5—141
Notice on the promulgation of the industry standard
"Standard for the Inspection and Assessment of the Quality of Municipal Drainage Pipe and Canal Projects"Jianbiao [1991] No. 6
Construction Committees (Construction Departments) of all provinces, autonomous regions, and municipalities directly under the Central Government, Construction Committees of independently planned cities, and relevant ministries and commissions of the State Council:
In accordance with the requirements of the former Ministry of Urban and Rural Construction and Environmental Protection's (87) Chengke No. 276 document, the "Standard for the Inspection and Assessment of the Quality of Municipal Drainage Pipe and Canal Projects", edited by Beijing Municipal Engineering Bureau, has been reviewed and approved as an industry standard, numbered CJ3-90, and will be implemented on August 1, 1999. The former Ministry standard "Interim Standard for Inspection and Assessment of Municipal Engineering Quality (Drainage Pipeline Engineering)" CJ3-81 is abolished at the same time. 5-14- 2
This standard is managed by the Ministry of Construction's Urban Construction Standards and Technology Management Unit, the Ministry of Construction's Urban Construction Research Institute, and its specific interpretation is the responsibility of the Beijing Municipal Engineering Bureau.
This standard is published by the Ministry of Construction's Standards and Norms Research Institute. Ministry of Construction of the People's Republic of China
January 4, 1991
Chapter 2
Chapter 3
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Chapter 4
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Chapter 5
Inspection and Assessment Methods Method and grade
Flat foundation, pipe seat
Inspect and
Earth channel
Foundation, cushion
Cement concrete and reinforced concrete
Channel water closure
++++++++++++++.
Bottom protection, slope protection, retaining wall (fumigation
force type)
Drainage pump station
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5—14-5
5-14-5
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.. 5-14-6
5-14--6
5-14-7
5--14-7
5--14-7
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... 5—14--8
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Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Foundation pit excavation
Pump station caisson
5--14—8
. 5-14—8
5--14—9
5--14—9
5--14—9
Cast-in-situ cement concrete structure
..... 5-14—10
Brickwork
Component installation
Water pump installation
Cast iron pipe installation
Section 11
Chapter 6
Appendix 2
Appendix blue
Appendix 4
Steel pipe installation·
Measurement·
++++++.+++++++
Terminology comparison
......... 5-1410
-... 5--14—11
5—14—11
5—14—11
5-14—11
14—11
5--14—12
Example of statistical calculation for quality assessment
J .... 5-14--12
Evaluation of acceptance of concrete strength
Standard·
5—14—13
Construction site geotechnical test methods
.... 5-14-13
1. Ring knife method
5—14—13
2. Method for determining the best compaction of soil
............ 51413
3. Test method for the best moisture content and maximum compaction of lime soil
Appendix V
Explanation of terms used in this standard
Additional instructions
......... 5-14—15
514-15
5—14-3
General
Article 1.0.1 This standard is formulated to meet the needs of municipal engineering construction and development, unify the municipal engineering quality inspection methods and evaluation standards, improve the construction quality of municipal engineering, and promote the quality management of municipal engineering. Article 1.12 This standard applies to newly built, expanded, and rebuilt municipal drainage canal projects. Municipal drainage canal projects with special requirements shall be implemented in accordance with this standard, except for the special requirements. Municipal drainage canal projects in "industrial" areas, and municipal drainage canal projects in remote suburbs and counties (banners) outside the urban area shall refer to this standard for implementation. Article 1.1.3 The quality inspection and evaluation of municipal drainage canal projects shall comply with the provisions of the relevant current national standards in addition to complying with this standard. The quality standards of raw materials, semi-finished products or finished products shall be implemented in accordance with the provisions of this standard; if there are no provisions, they shall also comply with the relevant national standards in force.
Second Child
Article 2.0.1
"Excellent" and "Excellent" grades.
Inspection and Assessment Methods and Grade Standards
The quality assessment of municipal drainage pipe and canal projects is divided into "qualified" and "qualified". Article 2 0.2 Division of the process, part and unit project of municipal drainage pipe and canal projects:
"Qualified" and "Excellent" grades. ... However, it can also be divided into several parts according to the length.
3. Unit Project:
The independent accounting project of municipal drainage pipe and canal project should be a unit project. The same municipal project that adopts phased independent accounting should be a unit project. Article 2.0.3 Inspection and evaluation must be qualified after the appearance project inspection before the inspection of the items with allowable deviation can be carried out.
Article 2.0.4 When conducting sampling inspection, the sampling points should reflect the actual situation of the project. (For those whose inspection range is length, sampling should be carried out according to the specified interval and the larger deviation point should be selected; for others, the larger deviation point should be selected within the specified range). Article 2.0.5 The inspection and evaluation of the quality of municipal drainage pipe and canal project should be carried out at three levels: process, part and unit project. When the project is not divided into parts, it can be carried out at two levels: process and unit project. The evaluation criteria are qualified rate: qualified rate 1
, process:
The number of qualified points (groups) in the same inspection item
The number of points (groups) to be inspected in the same inspection item 2. Qualified: Those who meet the following requirements shall be rated as "qualified-×100%
1. The qualified rate of major inspection items (those with △ in the item column) shall reach 100%.
2. The qualified rate of non-major inspection items shall reach 70%, and the maximum deviation of points that do not meet the requirements of this standard shall be within 1.5 times the allowable deviation. In special cases, if the general difference exceeds 1.5 times the allowable deviation, but does not affect the construction of the next process, the engineering structure and the convenient function, it can still be rated as qualified. Excellent: Those who meet the following requirements shall be rated as "excellent" 1. Conditions for meeting the qualified standards
2.The average qualified rate of all inspection items should reach 85%. 1. Part:
Qualified: If all the processes are qualified, the part should be rated as \qualified\. 5-14- 4
Excellent: On the basis of being evaluated as qualified, if the average qualified rate of all process inspection items reaches 85%, the part should be rated as excellent. 3. Unit project:
Qualified: If all the processes of all parts are qualified, the unit project should be rated as qualified,
Excellent: On the basis of being evaluated as qualified, if the average qualified rate of all parts (processes) inspection items reaches 85%, the unit project should be rated as excellent. Article 2.0.6 If the quality of the process does not meet the requirements of this standard, it should be handled in time. The quality level of the reworked project should be re-evaluated. Projects that change the structural appearance or cause permanent defects (but do not affect the use effect) after reinforcement shall not be rated as excellent.
Article 2.0.7 The quality inspection and assessment of municipal drainage pipeline projects must comply with the following provisions:
1. Process handover inspection. The inspection personnel (full-time or part-time) shall conduct the process handover inspection, assess the process level, and fill in Table 2.0.7--1 (the process handover inspection is conducted on the basis of the self-inspection and mutual inspection of the construction team); 2. Part handover inspection. The inspection personnel shall conduct part handover inspection on the basis of the process handover inspection, assess the part level, and fill in Table 2.0.7--2; 3. Unit project handover inspection. The inspectors shall conduct unit project handover inspection on the basis of the part or process handover inspection, assess the project quality level, and fill in Table 2.0.7-3.
Process quality assessment table
Part name:
Unit project name
Main project project
Serial number Authentic project
Safety test and allowance
Process name
Adjustment value of each measured point (mm)
2,0,7-1
Qualified inspection|Qualified rate
Item [mm) 0 2 3 4 5 6 1 7 8 1 9 1 0 0 1 2 1 3 Points Points (%)|| tt||Send-over shift
Engineering and technical supervisor:
Receiving station
Quality inspector:
Construction worker
Average qualified rate (%)）
Evaluation level
Note: The actual inspection points must be equal to the minimum F inspection points. If the smoke passes the inspection points, the passing points should be subtracted from the grid points,
Unit work difference name
Part abdominal measurement table
Part name
Work warehouse name
Average qualified rate (%)
Evaluation meaning
Engineering and technical supervisor:
Qualification rate (% ) Quality grade display
Evaluation grade
Inspector:
Assistant:
Fees 2.0.7-2
.T.Project name:
Unit of work
Construction team:
Project quality evaluation table
Part ([)) Name Qualified rate (%) Quality grade Average grade (%)
Detailed commentsbzxZ.net
1I.Project technical person in charge:
Section 3.1.1 Article
Article 3.1.2
Quality inspector:
Detailed level
Work attendant:
Chapter 3
Section 1 Trench
Table 2.0.7-3
Construction unit
Design unit
Construction unit
It is strictly forbidden to disturb the soil at the bottom of the trench. If over-excavation occurs, it is strictly forbidden to return the soil to the bottom. The trench shall not be soaked or frozen.
Article 3.1.3 The allowable deviation of the trench shall comply with the provisions of Table 3.1.3. Allowable deviation of the trench
Table 3.1.3
Allowable deviation
Trench bottom elevation
Trench bottom centerline
Each degree
Trench side slope
Article 3.2.1 Article
Not less than the regulations
Not in accordance with the regulations
Section 3
Between two wells
Between two wells
Inspection method
Flat base,
, pipe seat
Fushui Nan Instrument Measurement
Center line of Jie is measured with a ruler
3 on each side Points
Check with slope gauge
3 points on each side
Flat foundation, pipe seat allowable deviation shall comply with the provisions of Table 3.2.1. Single foundation, pipe shall allow deviation integral
Inspection rate
Allowable deviation
△Concrete compressive strength
Per shekel
Main side width
Must comply with the provisions specified in the attached
Record||Not less than the design
Not less than the design
Height ±20mm
Bee blind smell
Between two wells
(per drawing)
Table 3.,2.1
Inspection method
Must comply with
Appendix 3 provisions
Measure the center line with a ruler
Count "points" on each side
Measure with a level
Measure the center line with a ruler
Count 1 point on each side
Measure with a level
Measure with a ruler
Measure the side trim with a ruler
Count on each side! Points
Measure with a level
Count t points on each side
Measure honeycomb with a ruler
Total area
Article 3.3.1
Section 3 Installation
The pipeline must be padded firmly, the slope of the bottom of the pipe must not flow back, the seam width should be uniform, and there must be no mud, bricks, stones, mortar, wood blocks and other debris in the pipeline. Article 3.3.2 The allowable deviation of the installation pipe shall comply with the provisions of Table 3.3.2. Allowable deviation of pipe installation
Allowable deviation
Linear displacement
D<1000mm
D>1000mm
Inverted siphon
D<1000mm
D>1000mm
Inspection frequency
Number of closing points
Between two parallels
Between two wells
Between two wells
Each straight pipe
Between wells
Between two wells
Note: 1.When D<700mm, the misaligned openings in the corresponding unloading pipe will be self-checked during work and the points will not be counted. 2.D in the table is the pipe diameter.
Section 4 Connection
Test Method
Hang Center Line
Measure with Ruler
Use Level
Use Level
Use Level
Measure with Ruler
Measure with Ruler
Socket or tongue and groove Various interfaces should be straight, and the annular gap should be uniform. Article 3,4,1
The ash door should be neat, dense and full, without cracks, hollows, etc. Article 3.4.2
Hollows, etc. Article 3.4.3
The surface of the smear tape interface should be flat and dense, without discontinuity and cracks. The allowable deviation of the smear tape interface should comply with the provisions of Table 3.4.3. The interface of the smear tape is allowed to be repaired
Article 3.5.1
Article 3.5,2
Article 3.5.3
Debris.
Inspection frequency
Between two wells
Between two wells
Section 5 Top
The interface must be dense, flat and not fall off. Table 3.4.3
Inspection method
Measure with a ruler
Measure with a ruler
The center of the inner expansion circle should be aligned with the pipe seam, and the filling should be dense. There should be no mud, mortar, bricks, wood blocks, etc. in the pipe. The allowable deviation of the top pipe working pit should comply with the provisions of Table 3.5.4. Article 3.5.4 Article
Allowable deviation of pipe jacking working environment
Test vehicle
"Depth of each side of the working pit,
Verticality
Deviation between the horizontal line and the center line
Midline displacement
Allowable deviation
Not less than 3mm from the design regulations
Note: H in the table is the vertical height of the back (Unit: mm) L is the horizontal length of the back (Unit: mm)
Number of range points
Grain inspection method
Hang the center line
Measure with a ruler
Use a vertical line
With an angle ruler
Measure with a level
Measure with a theodolite
5—14—5
Article 3.5.5 The allowable deviation of the top pipe shall comply with Table 3.5.5. Allowable difference of top pipe
Allowable deviation
Inner elevation
Center line displacement
D<1500mm
D>is00mm
Stagger between opposite pipes
Pipes at the wrong opening when facing top
Note: D in the table is the pipe grid.
15% pipe wall friction
not more than 20
Inspection frequency
each pipe expansion
each pipe section
each section
each connection
for pre-interface
Section 6 Inspection Well
Inspection method
Measure and check
Measurement record
Use water meter
Measure with heart
Use ruler
The whole must be perpendicular to each other, without through seams, and must ensure that the mortar is full, the mortar joints are flat, the surface is smooth, and there are no hollows, cracks, etc. Article 3.6.2 The flow channel in the well should be smooth, the steps should be installed firmly and accurately, and there should be no debris such as construction waste.
Article 3.6.3 The frame and cover must be intact, stable and correctly positioned.
Article 3.6.4
The inspection and allowable deviation shall comply with the provisions of Table 3.6.4. Inspection and allowable deviation
Table 3.6.4
Allowable deviation
Length. Width
Non-road surface
<1000mm
b>1000mm
Note: The table shows the pipe diameter,
which is consistent with the
regulations for roads
Inspection frequency
Inspection method
Measure with a ruler, length,
width at each measuring point
Measure with a ruler
With a level
With a level
Section 7 Water-tightening Techniques
With a level
Article 3, 7.1 Sewage pipes, combined rainwater and sewage pipes, inverted siphons, and other drainage pipes that are required to be water-tight in design must be subjected to a water-tightness test. Article 3.7.2 The allowable deviation value and seepage volume of the drainage pipe water-tightness test shall comply with the following provisions: The allowable deviation of the drainage pipe water-tightness test shall comply with the provisions of Table 3.7.2-1, 5-14-6. For example, siphon pipe: The allowable deviation of the drainage pipe water-tightness test is Ab<700mmAD700~1500mmAD>1500mmnot more than the provisions of Table 3.7.2-1: 1. The water-tightness test shall be carried out before the pipe is filled with soil. Inspection frequency
Each well section
Each 3 sections
Sampling inspection section
Each 3 well sections
Sampling inspection 1 section
2. The closed water test should be carried out 24 hours after the pipeline is filled with water. Points
Table 3.7.2-1
Inspection method
Submersible scene
3. The position of the closed water test should be 2m above the inner pipe of the upstream test section. If the height from the inner pipe to the inspection port is less than 2m, the closed water test water level can be up to the non-port. 4. The measurement time of the seepage volume shall not be less than 30min. 5. D in the table is the arm diameter.
II. The allowable seepage volume of the drainage pipeline closed water test shall comply with the provisions of Table 3.7.2-2.
Allowable seepage volume of drainage pipe closed water test
Allowable diving volume
Below 150
m*/d·km
L/h·m
Table 3.7.2-2
Concrete pipe, cut-reinforced concrete pipe
and asbestos cement pipe
m*/d+km
L/h·m
Section 8 Backfill
Within 500mm (300mm in mountainous areas) of the pipe head, no debris such as stones and bricks larger than 100mm shall be backfilled. Article 3.8.1
When backfilling, there shall be no stagnant water in the trench, and silt, humus frozen soil and organic matter shall not be backfilled.
Article 3.8.3
The compaction standard of backfill soil shall comply with the provisions of Table 3.8.2. Compaction standard of backfill soil
Compactness (%)
Potent part
500mm above the top
Test frequency
Lightweight powder,
Compact test method) model
High woven surface
Above machine
To ground
1500mm
J>1500mm
Transitional pavement
High pavement
Taipei pavement
Transitional pavement
High pavement||t t||Qiugaozi road surface
Transition test road surface
No road or Ziming road in that year
Table 3.8.2
Test method
One group of each layer uses the ring knife method
Between two wells
(3 points)
One group of each layer uses the ring knife method
Between full wells
(3 points)
Between two wells|One group of each layer uses the ring knife method
(3 points)
Note: "This table is used to determine the compaction standard of the four-filling according to the road structure type classification, 2 The best compaction test method is shown in Appendix IV. 3 High-quality pavement is water-mixed concrete surface, asphalt concrete surface, cement concrete, precast blocks, etc., secondary high-quality pavement is blue surface treatment pavement, asphalt through-type pavement, Dingse alcohol stone pavement and other over-type pavement is mixed crushed stone pavement. Graded gravel pavement, etc. 4. If you encounter the rapid and trunk road of the year, no matter what kind of structure is used. The backfill of the high-quality surface listed above shall be implemented, regardless of the structural form. Section 4.1.1 Article
The side slope must be flat, solid and stable. It is strictly forbidden to stick to the slope. There shall be no loose soil in the canal, the canal bottom shall be flat and the drainage shall be smooth. Article 4.1, 2
The allowable deviation of the soil canal shall comply with the provisions of Table 4.1.3. Article 4, 1.3
The allowable deviation of the soil canal
Inspection rate
Serial number class
Dry bottom center line
Height of the standard
Article 4.2.1
Allowable sugar
Not less than
Design regulations
Not later than
Design regulations
Base boron, salt
Section 2
Inspection method
Measure with a level
Measure with a ruler on each side Point
Measure with a slope ruler
Concrete foundations shall not have exposed stones, peeling, cracked bonds, etc. The expansion joints shall be located correctly, vertically, and continuously. The compaction degree and allowable deviation of the entire foundation cushion layer shall comply with 4.2,2 of Table 4.2.2 Article
stipulates that
the compaction degree of the entire base layer and the allowable deviation
Compactness (%)
and the allowable transmission difference
the compaction degree of ash soil
the degree on each side
A concrete
compressive strength
the width on each side
the rough surface
±10mm
±15mm
must comply with the provisions of Appendix|
±10mm
Inspection frequency
Number of points on the model map
each team
(each measuring surface)
Inspection method
ring knife method
measure with a level
measure with a ruler
measure on each side! Points
Measured with a ruler
Must comply with the provisions of Appendix 3
Measured with a level
Measured with a ruler
Measured with a ruler
Each measurement! Points
Measured with a ruler
Total area of pitted surface
Section 3 Cement concrete and reinforced concrete channels Article 4.3.1 Cracks on the wall and slab surface are strictly prohibited, and there shall be no honeycomb and exposed reinforcement. Article 4.3.2 Article 4,3,3 The expansion joints of the wall and arch ring shall be aligned with the expansion joints of the bottom plate. The installation of prefabricated components must be accurate and stable, the gaps must be embedded, and there shall be no leakage. Article 4.3.4 There shall be no construction waste, mortar, gravel and other debris at the bottom of the channel. Article 4.3.5
The provisions of 4.3.5.
A concrete
Compressive strength
Channel elevation
Sectional dimensions
Sectional dimensions
Screw centerline
Straightness
Smoothness
The allowable deviation of cement concrete and reinforced concrete canals shall comply with the table. The allowable deviation of cement concrete and reinforced concrete canals shall comply with the provisions of Appendix 3.
±10mm
Not less than
Design requirements
Not less than
Design requirements
± 20mm
±10mm
Inspection frequency
Every shift
Inspection method
Must comply with the provisions of
Appendix 3
Use a level
Measure with a ruler, count one point for width and thickness
Measure with a ruler, count one point for brightness and thickness
Measure with a ruler, count one point for each side
Measure with a ruler, count one point for each side
Inspect with a good gauge,
Measure each point
Use a 2m ruler or a small line to measure
the maximum value, count 1 on each side Point
Section 4 Stone Channel
Measure with a ruler, each measurement
The wall surface should be vertical, the mortar must be full, the caulking is dense, and the grouting is neat. There should be no through seams, cracks, etc. The expansion joints of the wall and arch should be aligned with the expansion joints of the bottom plate.
5—14 - 7
There should be no construction waste, mortar, stones and other debris at the bottom of the channel. Article 4.4.2
Article 4.4.3 The allowable deviation of the stone channel shall comply with the provisions of Table 4.4.3. Stone channel is allowed to be used as the foundation
Allowable deviation
Must comply with this
Grouting compressive strength
Arch section size
Science Stone, concrete
Xie Jiusheng
Blocking surface weight ratio
Table notes
Design regulations
Not less than
Design support
Inspection frequency
Model drawing (m) Points|| tt||Inspection method
must comply with
this note
Use level
Use to measure, width and thickness
count 1 point
Use center measurement, use R to measure on each side, count one point on each side
Use plumb line to inspect,
allow points on each side
use 2m* ruler or small line to take the most accurate value, count 1 on each side Measure with a ruler, each side 1. The mortar strength test must meet the following requirements: 1. Make a group of test blocks (6 blocks) in each structure or every 50m. If the mortar mix ratio is changed, test blocks should also be made. The semi-uniformity of each group of blocks of the standard mortar shall not be less than the design requirement. The minimum strength value of the group of test blocks shall not be less than 85% of the design requirement. 2. The quality standards of cement concrete upper slabs can be found in Chapter 4, Section 3. Section 5 Brick wall surfaces should be flat and vertical, the mortar must be full, and the surface should be smooth. Article 4.5.1 There should be no hollow cracks, etc. Article 4.5.2 The expansion joints of the brick wall and arch ring should be aligned with the expansion joints of the bottom plate, and the key width should meet the design requirements. There should be no through joints in the brick wall, and there should be no construction waste, mortar, bricks and other debris at the bottom of the channel. Article 4.5.3
The allowable deviation of the brick channel shall comply with the provisions of Table 4.5.4. Table 4.5.4: Permissible deviation of brick canals. Frequency of inspection. Deviation from the specified value. The strength of the concrete must comply with the following requirements: 100 m, each mix ratio, canal elevation, fracture size, maximum practice, verticality of each side, verticality of the clean surface, spray surface and flat wall. Design requirements. Inspection method. Must comply with the following requirements: 4.4.3 Note: Use water submersible instrument to measure width and thickness with ruler, allow 1 point for each. Measure with ruler, measure 1 point for each scale. Measure with ruler, check 1 point for each crane. Use plumb line to check, count [points] on each side. Use 2m ruler or small wire coil to get the maximum value, count 1 point on each side. Section 6 Water Confinement: Mianyang water channel and rainwater and sewage combined channel should be tested for water confinement, Article 4.6.1. Article 4.6.2 The permissible water volume of the closed water test shall be implemented according to the design requirements and refer to Table 3.7.2-2.
5—14—8
Section 7 Bottom protection, slope protection, retaining wall (gravity type) Article 4.7.1 β Mortar masonry must be filled full and dense. Article 4.7.2 Mortar joints shall be neat and uniform, the joint width shall meet the requirements, and the grouting shall not be hollow or fall off.
The masonry shall be laid in layers, and the joints must be staggered and the joints shall be tight. Article 4.7.3
Settlement joints must be straight and run through from top to bottom.
Article 4.7.4
Embedded parts, drainage holes, filter layers, waterproof facilities, etc. must meet the requirements of the design or specifications.
Dry masonry shall not be loose, deaf or floating. Article 4.7.6
Article 4.7.7 The allowable deviations of base protection, slope protection and retaining walls shall comply with the provisions of Table 4.7.7.
Allowable deviation of bottom protection, slope protection and retaining wall
Allowable locking
mortar materials
stone, brick,
for tilting block stone
soil retaining environment protection, bottom protection and retaining wall 4 mortar
compressive strength
section size
preliminary surface elevation
centerline displacement
average value not less than the design requirements
+20not less than
design requirements
0.5%H bs%
5verticality of surface
brick, tilting block
horizontal joint level
8increased surface slope
not less than the design requirements
Note: H is the object height (unit: Mm). 3n
Inspection frequency
Number of points on the model map
Inspection method
Must comply with the provisions of the note to Table 4.4.3
Measure length and depth with a ruler.
Count one point for each direction
4 Measure with a level
Measure with a theodolite
Count one point for each longitudinal and longitudinal direction
Verify with a plumb line
Measure with a 2m ruler or small
Gauge the maximum value
Pull a 10m small line to measure
The maximum value
Verify with a slope gauge
Fifth Drainage Pump Station
Section 1 Excavation of Foundation Pit
Article 5.1.1 It is strictly forbidden to stir the base soil. If over-excavation occurs, it is strictly forbidden to backfill with soil.
The base shall not be soaked or frozen.
Article 5.1, 2
The allowable deviation of the foundation pit shall comply with the provisions of Table 4.1.3. Article 5.1.3
Allowable adjustment of foundation pit
Frequency of inspection
Axis displacement
Pit size
Slope of foundation pit
Allowable adjustment
Number of points in the range
±30mm
Not less than
Not flat
Section 2
Inspection method
Use the end measurement
Count 2 points on each horizontal direction
Measure with a level
Use a ruler,
Count 1 point on each side
Check with an angstrom ruler
Count each side! Point
The backfill shall not have any mud or spring phenomenon after compaction. Article 5,2.1
The backfill shall not contain silt, humus and organic matter. Article 5,2.2
The compaction standard of backfill shall comply with the provisions of Table 5.2.3, Article 3,2.3
Compaction Test
Backfill Compaction Standard
Compactness (%)
(Light Compaction
Test Method)
Section 3 Pump Station Caisson
3 Points)
Test Method
Use Ring Method
Article 5.3.1 After the flow well sinks, there shall be no leakage on the inner wall, and the bottom plate surface shall be flat and there shall be no leakage,
Article 5.3.2. The allowable deviation of the pump station caisson shall comply with the provisions of Table 5.3.2. Allowable deviation of the pump station caisson
Allowable deviation (mm)
Sequence item H
Axis displacement
Bottom plate elevation,
Verticality
160+10
Specification
Number of range points
Table 5,3.2
Test method
Use latitude and longitude
Use level
Use vertical line or latitude and longitude meter to test
Take 1 point in each longitudinal and transverse direction
Note: 1. H in the table is the depth of the flow well system (unit: m). 2. The quality inspection standard of the foundation and dyeing layer can refer to Table 4. 2. 2 3. The outer plane area of the anti-corrosion is greater than or equal to 250m, and the sinking depth H>10m. Large-scale inspection: If the above two conditions are not met, small-scale inspection is performed. The board
Section 4 Formwork
Article 5.4.
The formwork must be installed firmly and must not loosen, run, or sink under the construction load.
Article 5.4.2 The formwork joints must be tight and must not be drowned. The mold must be clean
The allowable deviation of the integral structure formwork shall comply with the regulations in Table 5.4.3 Article 5.4.3 Strip
Integral structural template allowable deviation
Table 5.4.3
Surface height of adjacent plates
Flatness
Straightness
Dimensions inside the mold
Line displacement
Glossy template
Non-glossy
Planed template
Non-planed
Soil, column osmanthus| |tt||Beam, slab
Pre-processed parts, reserved hole grid
Allowed deviation
Not more than 6
Note: H in the table is the height of the structure (unit: mm) Inspection rate
The most common point
Inspection method
Measure with a ruler
Use a 2m ruler
Inspect with a vertical filling potential meter
Measure with a ruler, length. Brightness, height
(hole)
Count 1 point each
Measure with a sieve instrument,
Count 2 points in each direction
Measure with a ruler
Article 5.4.4 The allowable deviation of the template for small prefabricated components shall comply with the provisions of Table 5.4.4.
The template of small plastic prefabricated components is allowed to be distorted
Allowed deviation
Sectional size
Test method
Each piece (
Measure the width and height with a ruler
Each counts 1 point
Measure the axis of the type
Parts
Not less than half
5 pieces)
Section 5 Steel
Measure the width and height with a ruler
Each counts 1 point
Use a ruler
Measure the width and height with a ruler
Each counts 1 point
Use a ruler
Article 5.5.1
The surface of the steel bar should be clean, and there should be no rust, oil, paint or other dirt.
Article 5.5.2
Small cross-sectional area.
Article 5.5.3
Teaching and other phenomena.
Article 5.5.4
Cold drawing rate
Stress-bearing steel
Shaped length
The steel bar must be straight, and the surface scratches and rust should not cause the steel bar to be bent and formed. There should be no cracks, scales or breaks on the surface. The allowable deviation of steel bar processing should comply with the provisions of Table 5.5.4. Allowable deviation of steel bar processing
Test frequency
Allowed editing
Number of dots
Not more than
Design requirements
Bending starting point
Each bar (each
Type
±20mm set 10%
Rebar ruler
Test method
Measure by hand
Measure by ruler
Measure by ruler
Measure by ruler. Height and width
Count 1 point each
Section 5.5.5 When the bars are tied and formed, the wires must be tied tightly and the two ends should be facing inward. There should be no sliding, breaking, displacement, etc. Article 5.3.6 When welding, there should be no water rust, oil stains, etc. on the welds before welding; there should be no gaps, cracks, or large metal weld nodules on the welds after explosion-proof connection, and they should make the same crisp sound as the original bars when tapped with a small iron rod. Article 5.5.7 The mesh or skeleton formed by binding or welding must be stable and firm, and must not be loose or deformed during installation and pouring of concrete. The defects and dimensions of the steel bar joints welded by arc welding are allowed in Articles 5.5, 8
and should comply with the provisions of Table 5.5.8.
5—14— 9
Defects and size tolerances of arc welding steel bar joints
Welding of steel bars according to the center
Welding of steel bars according to the center
Determination of the mold and the mold welding
Longitudinal deviation of the joint center
Bending of the steel bar axis at the joint
Deviation of the steel bar axis at the damaged end
Welding seam height
In 2d length h
Welding surface work
Porosity and flammability
Note: 1.4 in the table is the steel bar diameter (mm)
Allowed deviation
0.1aH not more than#
0.05H not more than 2
Not more than 3mm
2 This error is for the measurement of the welding camera, and the points are not counted. Section 5.5,9 Table 5.5.8 Test force method The allowable deviation of steel mesh and frame forming shall comply with the provisions of Table 5.5.9. The length of the mesh The length of the frame The allowable deviation of steel mesh and frame forming The allowable deviation of steel mesh and frame forming The allowable deviation of steel mesh and frame forming
Inspection frequency
Number of points
Practical skeleton
Use ruler to measure the longest point
Use ruler to measure the length, width and height
Use ruler to measure
: Monthly pharmaceutical planar skeleton. Its size refers to the distance between the center of the two outermost steel bars; when the end of the anatomical end is bent, it refers to the distance between the two outermost steel bars. Article 5.5.10
The grade, steel type, number of bars, diameter, etc. of the configured steel bars must meet the design requirements.
Article 5.5.11
The allowable deviation of steel bar installation shall meet the requirements of Table 5.5.11. Allowable deviation of steel bar installation
[yuan allowable shrinkage number
] When more than two rows are distributed in the height direction, the spacing between the bars of the load-bearing bars shall be
, and the number of points in the range of
5—14—10
5.5.11
Inspection method
Measure||the maximum deviation of the spacing between each bar at any section, and calculate the number of points
Section 6 Cast-in-place cement concrete structures Article 5.6.1 The mix ratio of cement concrete must comply with the design requirements, and the structure shall not have honeycombed exposed reinforcement and other phenomena.
Article 5.6.2
The allowable deviation of cast-in-place cement concrete structures shall comply with the provisions of Table 5.6.2.
Allowable deviation of cast-in-place cement filter soil structure No.
Eight Concrete compressive strength
△Concrete anti-seepage
Axis displacement
Elevation of each part
Allowable deviation
Must comply with
Record 3
Qualified tidal test
Range points
Must comply with GEJ82
|±20mm
Structure size Length, height
Structure
or diameter
200~500
Verticality of wall
0.5%Vertical not
greater than 50mm
± 10mm
±15mm
Each displacement shall not exceed
1% of the area
Note: The structures without anti-static requirements do not need to inspect the first item, the additional parts
(holes)
(6 pieces)
Section 7 Brick "structures
Must comply with the requirements of the GBJ82
Measured with a theodolite,
One point in each vertical and horizontal direction
Measure with a level
Measure with a ruler
Measure with a ruler
Measure with a ruler
Measure with a vertical line
Measure with a ruler
Measure with a ruler
Total surface area
Measure with R
The mortar must be full, the masonry is flat and intertwined, and there should be no through-holes. 5.7.1 The surface of the plain wall should be kept clean, the scraping depth should be appropriate, the grouting should be dense, the depth should be consistent, and the intersection of horizontal and vertical joints should be flat. Article 5.7,2 The allowable deviation of the brickwork structure shall comply with the provisions of Table 5.7.3. Brick shrinkage allowable screen difference
effective strength
axis position
indoor stacking
damage height
dynamic straightness
wall and column surface
flatness
item parts.
Pre-sterilization hole position, etc.
door, sales port
allow confirmation
natural construction special provisions in the table
4.4.3 note
0.3% L(D)
Every 5
Clear water pond 5
Dig water increase
Inspection frequency
Construction stop
Note: 1. In the table, L is the side length of the rectangular structure (grass position: m). D is the diameter of the rectangular structure (unit: mm). 4
Inspection method
Must comply with the provisions of the capsule
4.4,3 note
Measured with a meridian meter,
accepted, each horizontal interval is counted 1 Points
Measure with level
Measure with ruler
Verify with verticality
Use 2m heavy ruler small line
Measure the maximum value of effect
Measure with ruler
Measure with ruler
2. The quality control inspection standards for wooden doors, doors and windows, glazing, oil-proofing and other projects can refer to the relevant provisions of the current national "Standards for Quality Inspection of Difficult Buildings" (GB7300) for implementation. Article 5.8.1
Fill tightly. Article 5.8.2
Section 8 Component Installation
The gap between the two plates must be filled with fine stone concrete or cement mortar. The allowable deviation of component installation shall comply with the provisions of Table 5.8.2. Component safety allowance adjustment
Allowance deviation test frequency
China position
Surface deviation at the supporting point of two related components
Chijianchangjing
Center line deviation
Section 5.9.1 Article
Pre-surface elevation
Not less"
Design requirements
Double beams
End top surface height difference
Range points
Table 5.8.2
Use theodolite
Draw out the sleeve weld 10%
Allow each point
Measure with a plumb line or theodolite
Measure with a level
Section 9 Pump Installation
Anchor bolts must be firmly buried
Article 5, 9.2
The pump seat and the base should be in close contact. When multiple pumps are in parallel, various business procedures must comply with the design requirements
Article 5.9.3
Article 5.9.4 Article
4# Equipment Shop
The pump shaft shall not be bent, and the motor shall be aligned with the pump axis. The allowable deviation of the pump installation shall comply with the provisions of 5.9.4. The allowable deviation of the water ticket installation
Inspection fineness
Allowable deviation
(mm) Number of points
Levelness of foundation
Location of anchor bolts
Z Levelness of the body
Axial displacement
Radial displacement
Wheel width center
Flat belt
Transmission plane displacement
0.1 per meter
0.8 per meter
0.1 per meter
Section 10 Cast iron pipe fittings installation
Table 5.9.4
Inspection method
Measure with a level
Measure with a ruler
Measure with a level
Measure the four
positions of the coupling with a level and a percentage gauge. Micrometer and feeler gauge
Measure the end faces of the master and slave pulleys with a ruler
Section 5.10.1 Article
The water pressure and water injection tests must comply with the design requirements, and there should be no leakage at the wall-penetrating back plug.
Article 5.10.2
The bracket bracket should be installed in the correct position, buried flat and firmly, with full mortar, but should not protrude from the surface, and should be in close contact with the kidney. Article 5.10.3 The socket-type pipe connection should be straight, the annular gap should be uniform, the mortar door should be neat, dense and full, and the recessed socket should not be greater than 5mm. Article 5.10.4 The flange-type pipe connection should be flat and tight, the bolts should be tightened, the nuts should be in the gap-surface, and the length of the bolt protruding from the nut should not be greater than 1 of the bolt diameter. /2.
Article 5.10.5 The valve should be installed tightly and tightly, vertical to the center line of the arm, and the operating mechanism should be flexible and accurate
Article 5.10.6 The allowable deviation of cast iron pipe fittings installation shall comply with the provisions of Table 5.10.6
Public pipeline elevation
Center line displacement
Vertical straightness
Article 5.11.1 Article
Allowable deviation of pipe fittings
Allowable deviation
Not more than 10 per *2
Inspection period
Model point
Table 5.10.6
Inspection method
Measure with level
Measure with ruler
Inspect with plumb line and ruler
Section 11 Steel pipe installation
Hydraulic and air pressure tests must comply with design regulations. Article 5.11.2 The installation position of supports, hangers and brackets should be correct, buried flat and firm, with full mortar, but should not protrude from the surface, and should be in close contact with the pipeline. The sliding bracket should be flexible, and there should be a space of 3 to 8 mm between the sliding bracket and the slideway, and a certain offset should be left.
Article 5.11.3 Pipeline connection:
Welding:
1. The welding surface shall not have cracks, burn-through, nodules, and serious slag inclusions, pores and other defects.
2. When the steel plate coiled pipe or spiral steel pipe is butt-jointed, the longitudinal welds shall be staggered by more than 100mm, and the distance between two adjacent annular welds of the straight pipe section shall not be less than 200mm. 3. The size of the butt gap: not more than 2mm for wall thickness of 5-9mm, and not more than 3mm for wall thickness greater than 9mm.
2. Thread connection:
The thread connection shall be tight, the pipe end shall be clean, and there shall be no burrs or messy threads: and 2 to 3 threads shall be left.
3. Flange connection:
The flange shall be butt-jointed parallel and tight, the gasket shall not be double-layered, and shall be perpendicular to the center line of the pipeline. The bolt width should be on the same side, and the length of the bolt exposed from the nut should not be greater than 1/2 of the bolt's true diameter.
Article 5.11.4
The valve should be installed tightly and tightly, and should be perpendicular to the center line of the pipeline. The operating mechanism should be flexible and accurate.
Article 5.11.5 Where the pipeline passes through the wall or bottom plate, a sleeve should be installed according to the design and specifications.
Iron rust and dirt should be cleaned up, and the color and gloss of the paint should be uniform and well attached. There should be no omissions, peeling, folding, blistering, etc. Article 5.11.7
The allowable deviation of the steel pipe installation should comply with the provisions of Table 5.11.7. Allowable error
Inspection frequency
Allowable error
Road elevation
Centre line displacement
Vertical pipe straightness
Number of standard points
2 per meter and not every day
Chapter 6 Measuring
Elements 5.11.7
Inspection method
Measure with level
Measure with ruler
Check with plumb line and ruler
Measure with ruler
Measure with ruler
Article 6.0.1 The occlusion error of leveling points is ±12VL (mm), where L is the horizontal distance between leveling points, in km.
Traverse azimuth closure error: ±40V yuan, n is the number of measuring stations Article 6.0.2
Article 6.0.3 The allowable deviation of direct measurement distance shall comply with Table 6.0.3.
5—14—11
Allowable error of direct measurement
Fixed measurement interval (ms)
200~500
Allowable adjustment
1/ 5000
1710000
1 / 20000
Appendix - Terminology comparison
Technical method
Standard method
Not only slow tempo
The most important 1st procedure name
Local practice period
Kidney base, Tong base, Jie foundation
Port, pad, eight characters
Waist essence, change beads
Water slurry, water ash, wrapped ash
Powder. Powder urine, batch block
pre-cough, supply coupons
kind of exciting key, acidity environment
sensitive water station. Tip Dan Cai station
unique
clear water template
water model
external waist push, sugar use
Table 6.0.3
Attachment 1
Process cumulative course determination
sewage situation T. Process
special: Physical test
Inspection items
Actual average target
Allow false
Pressure resistance must be paid in accordance with the brush
Green three environment determination
Appendix II
Example of statistical calculation of quality assessment
1. Assumption: The total length of ××× sewage pipe is 200m, the pipe diameter is 700mm, each section is 2m long, there are 5 inspection wells, from No. 1 to No. 5, and each well section is 50m, the width of the flat base is 0.996m, and the thickness is 0.12m; the shoulder height of the 180° pipe seat is 0.408m, the shoulder width is 0.09m, and the qualified rate of each serial number safety test item of its flat base and pipe seat (qualified points/ Check points) See Appendix 2,
The average qualified rate of this process is
Serial number qualified rate 0+@+@+④+?+@+?+8
Serial number
The evaluation level of this process is: "Qualified"
Explanation:
①The compressive strength of cement concrete must meet the requirements of the appendix, otherwise, it is a non-conforming product.
②If the compressive strength of cement concrete meets the standard and the qualified rate of one of the other seven measured items does not reach 70%, it is also a non-conforming product. ③If all the qualified items of the measured items meet the qualified standards, but the measured deviation value of the unqualified points is shorter than 1.5 of the allowable deviation value, such as the allowable deviation of the shoulder of the pipe seat is +10mm, and the measured deviation of a certain point is 16mm, but it does not affect the construction of the next process. Engineering structure and use function, then the quality of this sub-project can still be evaluated as a qualified product.
2. Assumption: The total length of the No. 1 to No. 5 well section of the ××× sewage pipeline is 200m. Due to its short length, it is no longer divided into parts. The pass rate (%) of each process is: ① Trench
Leveling base, pipe seat
③ Pipe installation
?Interface
?Inspection and
@Water sealing
?Backfilling
Then the average pass rate (%) of this unit project is: (+@+@+@+@+@+@)/ 7=87.3
The assessment level is \Excellent.
Appendix 2
Name of position
Process name:
Leveling, pipe density
Load diameter 700mm bone channel length 200m; inner diameter 1.5m inspection and measurement standard, each length 50m, dyeing case length 9 200m, height 1.096m half base length 200m, complex, width 0.96m, pulse width 0.12m: pipe seat case length 192m, nose width 0.09m, circumference 0.408m. Quantity
Should be controlled and checked
D3 1514151617141910 1213141151161711891206(%) Honesty
Not less than design 559
554 536 355 5513
55355455254854855155355655355255255255453632550
-10 -22 t
p line sea engraving +10mm
Density area
Engineering technical responsible person:
120mml
5—14—12
16t+20+22
12+14*#
+4 + +5
+10t+15
-12-24-26-15-9
110 +18 +2+t8 +16|+20 [ +23 [+25 / +16 ↓ +124421f2[nylnxos
Haofang team
Inspector:
Road worker:
12/-21↓-22 -15
All qualified
Recommended basic salesQuantity
Should be controlled, checked and approved
D3 1514151617141910 1213141151161711891206(%) Honesty
Not less than design 559
554 536 355 5513
55355455254854855155355655355255255255453632550
-10 -22 t
p line sea engraving +10mm
Dense area
Engineering technical person in charge:
120mml
5—14—12
16t+20+22
12+14*#
+4 + +5
+10t+15
-12-24-26-15-9
110 +18 +2+t8 +16|+20 [ +23 [+25 / +16 ↓ +124421f2[nylnxos
Haofang team
Inspector:
Road worker:
12/-21↓-22 -15
All qualified
Recommended basic salesQuantity
Should be controlled, checked and approved
D3 1514151617141910 1213141151161711891206(%) Honesty
Not less than design 559
554 536 355 5513
55355455254854855155355655355255255255453632550
-10 -22 t
p line sea engraving +10mm
Dense area
Engineering technical person in charge:
120mml
5—14—12
16t+20+22
12+14*#
+4 + +5
+10t+15
-12-24-26-15-9
110 +18 +2+t8 +16|+20 [ +23 [+25 / +16 ↓ +124421f2[nylnxos
Haofang team
Inspector:
Road worker:
12/-21↓-22 -15
All qualified
Recommended basic sales
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