This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation, storage, etc. of triple-tube double-action rotary soil samplers. This standard applies to soil samplers for taking first-grade quality undisturbed soil samples of hard plastic and hard clay, medium sand, coarse sand, granular sand, some crushed stone soil, and soft rock in boreholes as specified in GB 50021 and JG J89. JG/T 5061.9-1995 Triple-tube double-action rotary soil sampler JG/T5061.9-1995 Standard download decompression password: www.bzxz.net

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Construction Industry Standard of the People's Republic of China JG/T5061.9—1995
Heavy Tube Double-action Rotary Corer
Triple tube rigid type rotary corerConstruction Standard
1996-01-05Released
Ministry of Construction of the People's Republic of China
Implementation on 1996-06-01
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Construction Industry Standard of the People's Republic of China Triple tube rigid type rotary corerSubject Content and Scope of Application
JG/T5061.9—1995wwW.bzxz.Net
This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage of triple tube rigid type rotary corer.
This standard applies to soil sampling devices for taking first-grade quality undisturbed soil samples of hard plastic and hard clay, medium sand, coarse sand, granular sand, some rags and soft rock in boreholes as specified in GB50021 and JGJ89. 2 Reference standards
GB1031
Ordinary screw
Tolerance and fit (true diameter 1~355mm)
Surface roughness parameters and values
GB50021 Geotechnical engineering investigation specification
JGJ89 Undissolved soil sampling technical standard
YB-235 Geological drilling steel pipe
JG/T5012 General technical conditions for packaging of construction machinery and equipment 3
Product classification
Main parameters and size series
The triple tube double-action rotary earth collector takes the outer diameter of the outer tube and the inner diameter of the liner as the main parameters, and the series is shown in Table 1. Table 1
Outer tube outer diameter
Inner diameter of liner
See Figure 1.
Approved by the Ministry of Construction of the People's Republic of China on January 5, 1996, 108
Implemented on June 1, 1996
Engineering Construction Standard Full-text Information System
1—Connector 2—Steel ball; 3—Valve seat; 4—Outer tube, 5—Liner; 6—Inner tube; 7—Guide ring; 8—Retaining ring; 9—Alloy drill bit for outer tube; 10—Alloy drill bit for inner tubeThe model of triple-tube double-action rotary earth extractor consists of type code and main parameters. 3.3.1 Model compilation method
Update, variant code, expressed in Chinese Pinyin
alphabetical order (uppercase print)
Main parameters: outer diameter of outer tube × inner diameter of liner, mm double-action
- soil sampler
3.3.2 Marking example
Triple tube double-action rotary main sampler with outer tube outer diameter of 108mm and liner inner diameter of 74mm: soil sampler TS 108X74JG/T5061.9
Basic parameters
Basic parameters should comply with the requirements of Table 2
TS108X74
TS146X110
Outer diameter of outer tube
Inner diameter of liner
Internal clearance ratio (C), calculated according to the following formula: 3.4.1
Liner length
D,-D.
×100%
Where: D.
-Inner diameter of liner, mm;
-Inner diameter of alloy drill bit in inner tube (inner blade), mm. 10
Internal clearance ratio, %
Inner pipe advance distance
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4: Technical requirements
4.1 Products should be manufactured according to drawings and technical documents approved by the prescribed procedures. 4.2 The main parameters and basic parameters should comply with the provisions of 3.1 and 3.4. 4.3 The liner material can be made of metal or non-metallic pipes. 4.4 The inner diameter deviation of the liner is ±0.3mm, the outer diameter deviation is ±0.5mm, and the roundness does not exceed the inner diameter deviation of the liner. The inner diameter surface roughness should not be lower than R.3.2. The outer diameter surface roughness should not be lower than R.6.34.5
The connector should be made of materials with mechanical properties not lower than 50 steel, and after quenching and tempering, the heat treatment hardness should be HB234~4.6 The inner tube, outer tube, and alloy drill body should be made of DZ45~50 seamless steel pipes specified in YB235. The dimensional deviation of the inner and outer tubes shall comply with the provisions of Table 3.
Straightness
TS146X110
Outer tube outer diameter 146
Inner tube outer diameter 127
TS108X74
Outer tube outer diameter 108
Inner tube outer diameter 89
4.7 The inner and outer surfaces of the inner and outer tubes shall be smooth, without folds, scars, roll folds, cracks, delamination, deep hairline and straight lines. Slight concave and convex surfaces and other defects whose depth does not exceed the wall thickness tolerance range are allowed. The special trapezoidal threads of the inner and outer tubes, alloy drill bits and connectors shall comply with the threads of geological core tubes, casings and their joints 4.8
specified in YB235.
The unprocessed outer surfaces of the inner and outer tubes shall be rust-proofed, and the surface shall be uniform and bright after painting. Except for standard parts, the rest of the parts shall be treated with rust prevention, such as bluing or blackening, and the color shall be uniform. 4.10 Assembly
4.10.1 All processed parts and purchased parts used for assembly must be inspected and qualified before assembly. 4.10.2
After assembly, all parts shall be connected reliably, and there shall be no looseness after vibration. The coaxiality tolerance of the inner and outer pipes in the vertical state is 15. Test method
Place the inner and outer pipes on a 2m×1m flat plate of not less than three levels, and use conventional methods to check their straightness. It shall comply with the provisions of Table 3. 5.2 Use a vernier caliper to measure the outer diameter and wall thickness of the inner and outer pipes. The deviation shall comply with the provisions of Table 3, and check the inner and outer surface quality with the naked eye. It shall comply with the provisions of 4.7.
5.3 Use a vernier caliper to measure the inner and outer diameter deviation of the liner, and check the inner and outer surface quality with the naked eye against the roughness standard block. It shall comply with the provisions of 4.4.
5.4 After the quenching and tempering treatment, the connector shall be inspected with a hardness tester, and its hardness shall comply with the provisions of 4.5. 5.5 Special trapezoidal threads and ordinary threads shall be inspected with standard thread test gauges. 5.6 The assembled earth collector shall be hoisted in a vertical state, and its coaxiality shall comply with the provisions of 4.10.2. 6 Inspection rules
The triple tube double-action rotary earth collector is divided into type inspection and factory inspection. 6.1 Type inspection is a comprehensive inspection of its performance, parameters, etc. The type inspection items include 4.1 to 4.10 of this standard. When one of the following situations occurs, type inspection shall be carried out.
a. Trial determination and identification of new products or old products for transfer to factory production; b. After formal production, when there are major changes in structure, materials, and processes that may affect product performance; when the national quality inspection and supervision agency proposes a type inspection requirement. c.
The soil samplers sampled must meet all the inspection items specified in this standard before the type inspection is passed. During formal production, sampling inspection is carried out after a certain number of products have accumulated, and the number of sampling inspections is 2%; when there are less than 100 pieces, it should not be less than two pieces. When there are unqualified products, the sampling inspection should be doubled. If there are still unqualified products, they must be inspected piece by piece. The factory inspection is to inspect the main parameters of the triple-tube double-action rotary soil sampler, special trapezoidal thread connection, flexible opening of the exhaust and drain valves, inner and outer diameters of the inner tube, and inner diameter of the outer tube. The product is allowed to leave the factory after passing the inspection. 7 Marking, packaging, transportation, purchase and storage
7.1 Marking
The product name, model, specification, and manufacturer's logo should be on the obvious part of the product. 7.2 Packaging
The packaging shall be carried out in accordance with the provisions of JG/T5012.
During transportation, the product should be placed in a packaging box and must not be transported exposed. Measures such as moisture-proof, anti-collision, and anti-extrusion should be taken. It must not be shipped together with acidic or alkaline items.
7.4 Storage
The product should be placed in a dry and ventilated warehouse and must not be mixed and stacked with acidic or alkaline items. Additional notes:
This standard was proposed by the Standard Ning'e Research Institute of the Ministry of Construction. This standard was drafted by the Ministry of Construction's Mechanical Equipment and Vehicle Standards Technical Management Unit Beijing Construction. This standard was drafted by the Ministry of Construction's Comprehensive Survey and Research Institute and China Ordnance Industry Northern Survey and Research Institute. The main drafters of this standard are Cui Jianmin, Zhang Wenxiu, and Qiao Guifang. This standard is entrusted to China Ordnance Wangye Northern Survey and Research Institute for interpretation. Machinery Comprehensive Research Institute.
The Research Institute is responsible for drafting.
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