GBJ 301-1988 Construction Engineering Quality Inspection and Assessment Standard GBJ301-88
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Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Construction Engineering
Quality Inspection and Evaluation Standard
GBJ301-88
1989
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National Standard of the People's Republic of China
Construction Engineering
Quality Inspection and Evaluation Standard
GBJ301-88
Editor Department: Former Ministry of Urban and Rural Construction and Environmental Protection of the People's Republic of China Approval Department: Ministry of Construction of the People's Republic of China
Effective Date: 1989 September
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Notice on the Release of the National Standard "Uniform Standard for Inspection and Assessment of Construction and Installation Project Quality" and Other Six Inspection and Assessment Standards (88) Jianbiao No. 335
According to the former State Construction Commission (79) Jianfa Shi Zi No. 168 document and the former Ministry of Urban and Rural Construction and Environmental Protection (85) Chengke Zi No. 293 notice, the six inspection and assessment standards including "Uniform Standard for Inspection and Assessment of Construction and Installation Project Quality" revised by the former Ministry of Urban and Rural Construction and Environmental Protection have been reviewed by relevant departments and are now approved as national standards for implementation on September 1, 1989. The provisions on elevators in the former national standards "Standard for Inspection and Assessment of Quality of Building Installation Projects" (Building Project) TJ301-74, "Standard for Inspection and Assessment of Quality of Building Installation Projects" (Pipeline Project) TJ302-74, "Standard for Inspection and Assessment of Quality of Building Installation Projects" (Electrical Project) TJ303-75, "Standard for Inspection and Assessment of Quality of Building Installation Projects" (Ventilation Project) TJ304-74 and "Standard for Inspection and Assessment of Quality of Building Installation Projects" (General Machinery and Equipment Installation Project) TJ305-75 shall be abolished at the same time.
The six approved inspection and assessment standards are managed by the Construction Supervision Department of the Ministry of Construction. The names, numbers and interpretation units of each item are as follows: 1. "Uniform Standard for Inspection and Assessment of Quality of Building Installation Projects" GBJ300-88, and its specific interpretation and other work shall be the responsibility of the China Academy of Building Research. 2. "Standard for Inspection and Assessment of Quality of Building Projects" GBJ301-88, and its specific interpretation and other work shall be the responsibility of the China Academy of Building Research. 3. The specific interpretation of GBJ302-88 Inspection and Assessment Standard for Building Heating, Sanitation and Gas Engineering is the responsibility of Shenyang Construction Engineering Administration. 4. The specific interpretation of GBJ303-88 Inspection and Assessment Standard for Building Electrical Installation Engineering is the responsibility of Zhejiang Provincial Construction Engineering Corporation Industrial Equipment Installation Company.
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5. GBJ304-88 Inspection and Assessment Standard for Ventilation and Air Conditioning Engineering is the responsibility of Shanghai Industrial Equipment Installation Company. 6. GBJ310-88 Inspection and Assessment Standard for Elevator Installation Engineering is the responsibility of Beijing Equipment Installation Engineering Company. The publication and distribution of the above six inspection and assessment standards are the responsibility of China Construction Industry Press. Ministry of Construction of the People's Republic of China
November 5, 1988
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Revision Notes
This standard is based on the requirements of the former State Construction Commission (79) Jianfa Shi Zi No. 168 and the former Ministry of Urban and Rural Construction (85) Chengke Zi No. 293. The China Academy of Building Research, together with Beijing Construction Engineering Corporation, Beijing Housing Construction Corporation, Shaanxi Construction Engineering Corporation, Shanxi Construction Engineering Corporation, Harbin Institute of Architecture and Civil Engineering, Jiangsu Construction Engineering Corporation, Shanghai Basic Engineering Corporation, Hubei Construction Engineering Corporation, Sichuan Construction Engineering Corporation and Liaoning Provincial Construction Department Building Standardization Office, formed a revision group to revise the "Standard for Inspection and Assessment of Construction Installation Engineering Quality" (Construction Engineering) (TJ301-74). After the revision, it is named "Standard for Inspection and Assessment of Construction Engineering Quality".
During the revision process of this standard, an extensive investigation was conducted on the implementation of the original standard and opinions from all sides were comprehensively analyzed. Some provisions of the original standard have been retained, some clauses have been revised, and new content has been added. For the basic items for evaluating the quality of sub-projects, specific quantitative indicators are proposed as much as possible to clearly divide the "qualified" and "excellent" grades, highlighting its position in the inspection and evaluation of the quality of sub-projects. This standard is divided into 12 chapters, 59 sections and two appendices. The main contents include the main sub-projects contained in the six sub-projects, namely foundation and foundation, main body, floor, doors and windows, decoration and roof. The inspection and evaluation items, inspection quantity and inspection methods of each sub-project are stipulated. During the revision process, opinions from various regions and relevant departments were sought many times, and trials were carried out in some regions. Finally, it was reviewed and finalized by the National Review Conference.
When implementing this standard, please send your opinions and relevant materials to the China Academy of Building Research for reference in future revisions.
Construction Supervision Department of the Ministry of Construction
October 24, 1988
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Chapter 1
Chapter 2
General Principles*oooooco中***oo
Earthwork and Blasting Engineering
Section 1
Earthwork.·
Section 2
Chapter 3
Explosive Engineering
Foundation and Foundation Engineering
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Section 10
Chapter 4
Lime Soil, Sand, Gravel and Three-in-One Foundation Engineering Heavy Hammer Compaction Foundation Engineering
Strong Compaction Foundation Engineering
Compacting Pile Engineering
Vibro-Flash Foundation Engineering
Jet Grouting Foundation Engineering
Hit (Pressure) Pile engineering·
Concrete and reinforced concrete cast-in-place pile engineering caisson and caisson engineering
Underground continuous wall engineering
Underground waterproofing engineering
Section 1
Section 2
Section 3
Waterproof concrete structure engineering
Cement mortar waterproofing layer engineering
Rolled waterproofing layer engineering
Reinforced concrete engineering
Chapter 5
Section 1
Section 2
Section 3
Section 4
Section 5
Chapter 6
Formwork engineering
Reinforcement engineering
Concrete Engineering
Component Installation Engineering·
Prestressed Reinforced Concrete Engineering
Masonry Engineering
Section 1
Bricklaying Engineering
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Section 2 Masonry Engineering
Chapter 7 Wood Structure Engineering
Section 1 Wood Roof Truss and Beam, Column Manufacturing Engineering Section 2 Wood Roof Truss and Beam, Column Installation Engineering Section 3 Roof Wood Frame Engineering·
Chapter 8 Steel Structure Engineering
Section 1
Section 2
Section 3
Section 4
Section 5
Chapter 9
Steel structure welding engineering
Steel structure bolt connection engineering...
Steel structure fabrication engineering·
Steel structure installation engineering
Steel structure painting engineering
Ground and floor engineering
Section 1
Section 2
Section 3
Section 4
Section 5
Chapter 10
Base engineering
Overall building, ground engineering
Block building, ground engineering
|Wooden slab building and ground engineering··
Road engineering in factory and residential area
Door and window engineering
Section 1
Section 2
Section 3
Section 4
Chapter 11
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Wooden door and window manufacturing engineering
Wooden door and window installation engineering
Steel door and window installation engineering·
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Aluminum alloy door and window installation project
........
Decoration project
General plastering project
Decorative plastering project
Brick wall jointing project
Painting project
Slurry brushing (spraying) project
Glass project
Papering project
Facing project
Cover panel and steel-wood frame installation project
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Section 10
Joinwood products project
Section 11
Chapter 12
Section 1
Section 2
Section 3
Section 4
Section 5
Section 6
Section 7
Section 8
Section 9
Appendix 1
Appendix 2
Decoration installation project
Roofing project·.
Roof leveling layer project
Roof insulation (heat insulation)
Layer project…
Roofing membrane waterproofing project
Oil caulking paint roofing project·
Fine stone concrete roofing project
Flat tile roofing project
Thin steel plate and Corrugated thin steel sheet roofing project
Corrugated asbestos tile roofing project
Downspout project
Inspection tool table
Terms used in this standard
Additional instructions
...............
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China Electric Power Center ... While implementing this standard, the provisions of the "Uniform Standard for Inspection and Assessment of Construction and Installation Engineering Quality" GBJ300-88 should also be followed. wwW.bzxz.Net
Chapter 2 Earthwork and Blasting Engineering
Article 2.0.1 This chapter applies to the quality inspection and assessment of earthwork and blasting engineering in industrial and civil buildings.
Article 2.0.2 The main indicators and requirements of this chapter are proposed in accordance with the provisions of the national standard "Construction and Acceptance Specifications for Earthwork and Blasting Engineering" GBJ201-83 (hereinafter referred to as the construction specification).
Section 1 Earthwork Engineering
Article 2.1.1 This section applies to the excavation and backfilling of column foundations, foundation pits, foundation trenches and pipe trenches, as well as excavation, filling, site leveling, drainage ditches and other earthworks. (I) Guarantee items
Article 2.1.2 The soil quality of the column foundation, foundation pit, foundation trench and pipe trench base must meet the design requirements and disturbance is strictly prohibited.
Testing method Observation inspection and inspection of trench inspection records. Article 2.1.3 The base treatment of the fill must comply with the design requirements and construction specifications.
Testing method Observation inspection and inspection of base treatment records. Article 2.1.4 The earth materials for backfilling of fill and column foundation, foundation pit, foundation trench and pipe trench must comply with the design requirements and construction specifications.
Testing method Field identification or sampling test. Article 2.1.5 The backfilling of fill and column foundation, foundation pit, foundation trench and pipe trench must be compacted in layers according to regulations. Sample and measure the mass density of the soil after compaction. The qualified rate shall not be less than 90%, and the difference between the lowest value of the mass density of unqualified dry soil and the design value shall not be greater than 0.08g/cm2, and shall not be concentrated. Inspection quantity The number of samples taken by the knife ring method: for backfill of column foundations, 10% of the total number of column foundations shall be randomly inspected, but not less than 5; for backfill of foundation trenches and pipe trenches, one group of samples shall be taken for each layer with a length of 20 to 50 m, but not less than 1 group; for foundation pits and indoor backfill, one group of samples shall be taken for each layer with a length of 100 to 500 m2, but not less than 1 group; for site leveling and backfilling, one group of samples shall be taken for each layer with a length of 400 to 900 m2, but not less than 1 group. The number of samples taken by the sand filling or water filling method can be appropriately reduced compared with the knife ring method.
Inspection method Observation inspection and inspection of sampling plan and test records. (I) Allowable deviation items
Article 2.1.6 The allowable deviation and inspection method of the external dimensions of earthworks shall comply with Table 2.1.6.
Allowable deviation and inspection method of earthwork dimensions Item
Length, width
(measured from the design center line
to both sides)
Slope steepness
Surface flatness
Column foundation, steam
resistance, foundation trench
Allowable deviation
Paving basin
Drainage ditch
Manual construction and mechanical construction
Not allowed
Not allowed|| tt||Not allowed
Not allowed
Ground (road)
Surface base
Inspection method
Check with level
Use theodolite,
Pull line and ruler
Observe or check with
slope gauge
Check with 2m ruler and
wedge-shaped feeler gauge
Note: The deviation of ground (road) surface base only applies to the base of the ground (road) surface directly on the excavation and fill. Engineering Construction Standard Full Text Information System
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Inspection Quantity Elevation: 10% of the total number of column foundations shall be randomly inspected, but not less than 5, with no less than 2 points for each, 1 point shall be taken for every 20m2 of foundation pit, and no less than 2 points for each pit; 1 point shall be taken for every 20m of foundation trench, pipe trench, drainage ditch, and road base, but no less than 5 points; 1 point shall be taken for every 30-50m2 of excavation, filling, and ground base, but no less than 5 points; 1 point shall be taken for every 100-400m2 of site leveling, but no less than 10 points. 1 point shall be taken for every 20m of length, width, and side slope steepness, with no less than 1 point for each side. 1 point shall be taken for every 3050m2 of surface flatness. Section 2 Blasting Engineering
Article 2.2.1 This section applies to blasting engineering for excavating column foundations, foundation pits, foundation trenches, pipe trenches, and site leveling, as well as underwater blasting engineering. (I) Guarantee items
Article 2.2.2 The geotechnical conditions of the column foundation, foundation pit, foundation trench, pipe trench and the base after underwater blasting must meet the design requirements. Inspection methods Observation inspection and inspection trench inspection records. (I) Allowable deviation items
Article 2.2.3 Allowable deviation and inspection method of the overall dimensions of blasting projects Allowable deviation and inspection method of the overall dimensions of blasting projects Allowable deviation (mm)
Length, width
Steep slope
Column foundation, foundation pit,
Foundation trench, pipe trench
—200
Not allowed
Site leveling
Not allowed
Underwater blasting
—400
Not allowed
Inspection method
Check with level
Check with theodolite, string
and ruler
Observe or check with slope gauge
Note: Column foundation, foundation pit, foundation trench, pipe trench and underwater blasting should be inspected after removing the loosened slag. Site leveling should be checked after leveling is completed.
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Conform to the provisions of Table 2.2.3.
Inspection quantity and elevation: 10% of the total number of column foundations shall be randomly inspected, but not less than 5, each with no less than 2 points, 1 point shall be taken for every 20m2 of foundation pits, and no less than 2 points for each pit; 1 point shall be taken for every 20m of foundation trenches and pipe trenches, but not less than 5 points, and 1 point shall be taken for every 100-400m2 of site leveling, but not less than 10 points. 1 point shall be taken for every 20m of length, width and steepness of side slopes, and no less than 1 point on each side.
Chapter III Foundation and Foundation Engineering
Article 3.0.1 This chapter applies to the quality inspection and assessment of artificial foundations, pile foundations, caissons, caissons and underground continuous wall projects of industrial and civil buildings. For other forms of foundation, please refer to the relevant provisions of reinforced concrete engineering and masonry engineering in this standard. Article 3.0.2 The main indicators and requirements in this chapter are proposed in accordance with the provisions of "Code for Construction and Acceptance of Foundation and Foundation Engineering" GBJ202-83 (hereinafter referred to as the construction specification).
Section 1 Lime Soil, Sand, Gravel and Three-in-One Foundation Engineering Article 3.1.1 This section applies to artificial foundations, cushions and lime soil moisture-proof layers paved with lime soil, sand, gravel and three-in-one soil. (I) Guarantee items
Article 3.1.2 The soil quality of the base must meet the design requirements. Inspection method Observation inspection and inspection of the inspection trench record. Article 3.1.3 The dry soil mass density or penetration of lime soil, sand, gravel and three-in-one soil must meet the design requirements and the provisions of the construction specification. Inspection method Observation inspection and inspection of the layered test (inspection) record. (I) Basic Items
Article 3.1.4 The proportioning, layered thickness and compaction degree of lime soil, sand, gravel and cement mortar shall meet the following requirements: Qualified: correct proportioning, even mixing, layered thickness in compliance with requirements and compaction. Excellent: correct proportioning, even mixing, layered thickness in compliance with requirements and compaction. Engineering Construction Standard Full Text Information System
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