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DZ/T 0276.30-2015 English PDF

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DZ/T 0276.30-2015: Regulation for testing the physical and mechanical properties of rock. Part30: Test for determining the bolt loading of rock mass
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DZ/T 0276.30-2015English199 Add to Cart 3 days [Need to translate] Regulation for testing the physical and mechanical properties of rock. Part30: Test for determining the bolt loading of rock mass Valid DZ/T 0276.30-2015

PDF similar to DZ/T 0276.30-2015


Standard similar to DZ/T 0276.30-2015

DZ/T 0216   GB/T 23249   GB/T 2007.4   DZ/T 0276.22   DZ/T 0276.10   DZ/T 0276.21   

Basic data

Standard ID DZ/T 0276.30-2015 (DZ/T0276.30-2015)
Description (Translated English) Regulation for testing the physical and mechanical properties of rock. Part30: Test for determining the bolt loading of rock mass
Sector / Industry Geological Industry Standard (Recommended)
Classification of Chinese Standard D00
Classification of International Standard 19.02
Word Count Estimation 8,824
Date of Issue 2015-02-04
Date of Implementation 2015-04-01
Regulation (derived from) Ministry of Land and Resources - Announcement 2015 No. 5
Issuing agency(ies) Ministry of Land and Resources
Summary This Standard specifies the test method for the determination of rock bolt loads. This Standard applies to physical and mechanical properties of rock weathering trials, prestressed anchor project strongly weathered rock mass load test.

DZ/T 0276.30-2015: Regulation for testing the physical and mechanical properties of rock. Part30: Test for determining the bolt loading of rock mass


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Regulation for testing the physical and mechanical properties of rock.Part 30. Test for determining the bolt loading of rock mass ICS 19.020 D00 People's Republic of China geological mineral industry standard Rock physics and mechanics properties test procedures Part 30. Rock bolt load test Part 30. Testfordeterminingtheboltloadingofrockmass Released on.2015-02-04 2015-04-01 implementation Ministry of Land and Resources of the People's Republic of China

Foreword

DZ/T 0276 "Testing Procedures for Physical and Mechanical Properties of Rocks" is divided into 31 parts. --- Part 1. General and general provisions; --- Part 2. Rock moisture test; --- Part 3. Rock particle density test; --- Part 4. Rock density test; ---Part 5. Rock water absorption test; ---Part 6. Rock hardness test; --- Part 7. Rock gloss test; --- Part 8. Rock antifreeze test; ---Part 9. Rock resistance to disintegration test; --- Part 10. Rock expansion test; --- Part 11. Rock erosion test; --- Part 12. Rock acid and alkali resistance test; --- Part 13. Rock specific heat test; --- Part 14. Rock thermal conductivity test; ---Part 15. Rock breakdown voltage and breakdown strength test; ---Part 16. Rock volume resistivity and surface resistivity test; --- Part 17. Rock radioactivity specific activity test; ---Part 18. Rock uniaxial compressive strength test; ---Part 19. Rock uniaxial compression deformation test; --- Part 20. Rock triaxial compression strength test; --- Part 21. Rock tensile strength test; --- Part 22. Rock flexural strength test; --- Part 23. Rock point load strength test; --- Part 24. Rock acoustic wave velocity test; ---Part 25. Rock shear strength test; --- Part 26. Rock mass deformation test (bearing plate method); --- Part 27. Rock mass deformation test (drilling deformation method); ---Part 28. Rock mass strength test (direct shear test); --- Part 29. Rock mass strength test (bearing plate method); --- Part 30. Rock bolt load test; --- Part 31. Rock sound wave velocity test. This part is the 30th part of DZ/T 0276. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed by the Ministry of Land and Resources of the People's Republic of China. This part is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93). This section drafted by. Hubei Institute of Geological Experiments. Drafters of this section. Tan Rui, Mei Yuxiang, Cheng Liwen, Yi Wan. Rock physics and mechanics properties test procedures Part 30. Rock bolt load test

1 Scope

This part of DZ/T 0276 specifies the test method for determining the rock bolt load. This part is applicable to the prestressed anchoring engineering load test of the weathered and strongly weathered rock mass in the rock physical and mechanical properties test.

2 Principle

The load of the anchor anchor is calculated by measuring the axial force of the anchor.

3 basic requirements

3.1 Determine the arrangement of the observation anchors according to the anchor design and engineering needs. 3.2 The force measurement range should match the amount of prestress applied by the anchor. 3.3 The number of observation bolts should be determined according to the importance of the project. It should be 5% of the total number of bolts, and the important project or key part should be 10%. 3.4 The structural form of the observation anchor should be consistent with the structural form used in the overall anchor design. For anchors with special requirements, load observation Other structural forms of the anchor can be used. 3.5 The geological description should include the following. a) Anchorage zone lithology, weathering degree, structure type and main mineral composition. b) Observe the main structural surface occurrences and locations of joints, cracks, faults and weak interlayers near the anchor. c) Engineering geological map of the anchorage area.

4 equipment and installation

4.1 Instrumentation 4.1.1 Displacement meter. The resolution is better than or equal to 0.01mm. 4.1.2 Load the device. 4.1.3 Cables and their protective devices. 4.1.4 Hydraulic jacks. 4.1.5 Anchor tension and locking equipment. 4.2 Installation Instrument and equipment installation is shown in Figure 1.

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