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DZ/T 0276.25-2015 English PDF

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DZ/T 0276.25-2015: Regulation for testing the physical and mechanical properties of rock. Part 25: Test for determining the shear strength of rock
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DZ/T 0276.25-2015English339 Add to Cart 3 days [Need to translate] Regulation for testing the physical and mechanical properties of rock. Part 25: Test for determining the shear strength of rock Valid DZ/T 0276.25-2015

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DZ/T 0216   GB/T 23249   GB/T 2007.4   DZ/T 0276.17   DZ/T 0276.10   DZ/T 0276.16   

Basic data

Standard ID DZ/T 0276.25-2015 (DZ/T0276.25-2015)
Description (Translated English) Regulation for testing the physical and mechanical properties of rock. Part 25: Test for determining the shear strength of rock
Sector / Industry Geological Industry Standard (Recommended)
Classification of Chinese Standard D00
Classification of International Standard 19.02
Word Count Estimation 14,198
Date of Issue 2015-02-04
Date of Implementation 2015-04-01
Older Standard (superseded by this standard) DY-94
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 determining the shear strength of the rock. This Standard applies to test physical and mechanical properties of rock shear strength test.

DZ/T 0276.25-2015: Regulation for testing the physical and mechanical properties of rock. Part 25: Test for determining the shear strength of rock


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Regulation for testing the physical and mechanical properties of rock. Part 25. Test for determining the shear strength of rock ICS 19.020 D00 People's Republic of China geological mineral industry standard Instead of DY-94 Rock physics and mechanics properties test procedures Part 25. Rock shear strength test Part 25.Testfordeterminingtheshearstrengthofrock 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 mass bolt load test; --- Part 31. Rock sound wave velocity test. This part is part 25 of DZ/T 0276. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces DY-94 "Testing procedures for physical and mechanical properties of rock 21. Shear strength test". This part is compared with DY-94, the main The technical changes are as follows. --- Added two chapters of "terms and definitions" and "principles"; --- Increased the configuration requirements for castables during sample preparation in direct shear tests; --- Increased the grading requirements for applying shear loads in direct shear tests; --- Increased the accuracy requirements of the direct shear test calculation results; --- Removed the portable shear test; ---Modified the press in the variable angle board test equipment and changed to the material testing machine; --- Modified the medium shear test and changed it to the direct shear test; --- Revised the description of the direct shear test, which is divided into two parts. the weak structural surface shear test and the rock sample direct shear test; --- Revised the rock shear strength test record sheet. 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. Zhao Guifang, Mei Yuxiang, Wang Chengqiao. The previous versions of the standards replaced by this section are. ---DY-86; ---DY-94. Rock physics and mechanics properties test procedures Part 25. Rock shear strength test

1 Scope

This part of DZ/T 0276 specifies test methods for determining the shear strength of rock. This section applies to the rock shear strength test in rock physical and mechanical properties test.

2 Terms and definitions

The following terms and definitions apply to this document. 2.1 Shear strength shearstrength The maximum stress that a rock specimen can withstand during shear failure.

3 Principle

Applying different axial loads to several rock specimens, applying horizontal shear force by the flat push method until the specimen is destroyed, and obtaining the shear resistance of the rock. Intensity, and the internal friction angle φ and cohesion C of the shear strength parameters of the rock sample are calculated according to the Morcolon theory.

4 instruments

4.1 Stone cutting machine, stone grinding machine. 4.2 Material testing machine. The indication error does not exceed ±1%. 4.3 Variable angle plate shear tester. It is required to adjust 4 to 5 angles in the range of 45°~70° (as shown in Figure 1). Description. 1---roller; 2---variable angle plate; 3---sample; 4---bearing plate. Figure 1 Variable angle plate shear meter

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