GB/T 23561.11-2024 English PDFUS$359.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 23561.11-2024: Methods for determining the physical and mechanical properties of coal and rock - Part 11: Methods for determining shear strength of coal and rock Status: Valid GB/T 23561.11: Historical versions
Basic dataStandard ID: GB/T 23561.11-2024 (GB/T23561.11-2024)Description (Translated English): Methods for determining the physical and mechanical properties of coal and rock - Part 11: Methods for determining shear strength of coal and rock Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: D04 Classification of International Standard: 73.010 Word Count Estimation: 18,189 Date of Issue: 2024-04-25 Date of Implementation: 2024-08-01 Older Standard (superseded by this standard): GB/T 23561.11-2010 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 23561.11-2024: Methods for determining the physical and mechanical properties of coal and rock - Part 11: Methods for determining shear strength of coal and rock---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. ICS 73:010 CCSD04 National Standards of People's Republic of China Replaces GB/T 23561:11-2010 Determination methods of physical and mechanical properties of coal and rock Part 11: Method for determination of shear strength of coal and rock Released on 2024-04-25 2024-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued ForewordThis document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting: This document is part 11 of GB/T 23561 "Determination of physical and mechanical properties of coal and rock": GB/T 23561 has been published The following parts: --- Part 1: General provisions for sampling; --- Part 2: Method for determination of true density of coal and rock; --- Part 3: Method for determination of density of coal and rock blocks; --- Part 4: Calculation method of porosity of coal and rock; --- Part 5: Determination of water absorption of coal and rock; --- Part 6: Determination of moisture content in coal and rock; --- Part 7: Determination of uniaxial compressive strength and calculation method of softening coefficient; --- Part 8: Determination methods of deformation parameters of coal and rock; --- Part 9: Methods for determination of triaxial strength and deformation parameters of coal and rock; --- Part 10: Determination of tensile strength of coal and rock; --- Part 11: Determination of shear strength of coal and rock; --- Part 12: Determination of the solidity coefficient of coal; --- Part 13: Method for determination of point load strength index of coal and rock; --- Part 14: Method for determination of rock expansion rate; --- Part 15: Method for determination of rock expansion stress; --- Part 16: Method for determination of rock disintegration resistance index: This document replaces GB/T 23561:11-2010 "Determination of physical and mechanical properties of coal and rock Part 11: Shear resistance of coal and rock Compared with GB/T 23561:11-2010, in addition to structural adjustments and editorial changes, the main technical changes are as follows: a) The scope of application has been changed (see Chapter 1, Chapter 1 of the:2010 edition); b) The accuracy level of “material testing machine” has been changed (see 4:1, 5:1, 6:1, 4:1, 5:1, 6:1 of the:2010 edition); c) The sample preparation equipment has been changed (see 6:1, 6:1 of the:2010 edition); d) Added relevant provisions on “single-sided shear strength determination” (see Chapter 7): Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents: This document is proposed and coordinated by the China Coal Industry Association: This document was drafted by: China Coal Science and Technology Research Institute Co:, Ltd:, China Coal Research Institute Co:, Ltd:, China Coal Technology and Engineering Mining Research Institute INN LIMITED: The main drafters of this document are: Sun Zhongxue, Li Hongyan, Deng Zhigang, Shu Longyong, Mo Yunlong, Hao Jinwei, Fu Xingyu, Liu Xue, Qi Qingxin, Lou Jinfu: This document was first published in:2010 and this is the first revision:IntroductionGB/T 23561 aims to describe the method for determining the physical and mechanical parameters of coal and rock in the laboratory: The measurement requirements of the mechanical parameters are planned to consist of 16 parts: --- Part 1: General provisions for sampling: The purpose is to describe the basic physical and mechanical properties of coal and rock formations related to coal seams: Sampling method for coal and rock samples required for determination of impact tendency: --- Part 2: Method for determination of true density of coal and rock: The purpose is to use the pycnometer method or gas expansion method true density analyzer to measure Determine the true density of coal and rock: --- Part 3: Method for determination of density of coal and rock blocks: The purpose is to determine the density of coal and rock blocks by sealing method and volumetric method: density: --- Part 4: Calculation method of porosity of coal and rock: The purpose is to determine the porosity of coal and rock: --- Part 5: Determination of water absorption of coal and rock: The purpose is to determine the water absorption of coal and rock that does not disintegrate, dissolve, shrink or swell when exposed to water: The water absorption of rocks: --- Part 6: Determination of moisture content of coal and rock: The purpose is to determine the moisture content of coal and rock by drying method: --- Part 7: Determination of uniaxial compressive strength and calculation method of softening coefficient: The purpose is to determine the coal that can be processed into standard test pieces: And the uniaxial compressive strength of rock and the calculated softening coefficient: --- Part 8: Determination of deformation parameters of coal and rock: The purpose is to determine the uniaxial deformation of coal and rock that can be processed into standard specimens: Deformation parameters under compression: --- Part 9: Method for determination of triaxial strength and deformation parameters of coal and rock: The purpose is to determine the triaxial strength and deformation parameters of coal that can be processed into standard test pieces: and the strength and deformation parameters of rocks under axisymmetric triaxial stress conditions: --- Part 10: Method for determination of tensile strength of coal and rock: The purpose is to determine the tensile strength of coal and rock that can be processed into standard test pieces: Tensile strength: --- Part 11: Determination of shear strength of coal and rock: The purpose is to determine the shear strength of coal and rock: --- Part 12: Determination method of solidity coefficient of coal: The purpose is to determine the solidity coefficient of coal: --- Part 13: Method for determination of point load strength index of coal and rock: The purpose is to determine the point load strength index of coal and rock: --- Part 14: Method for determination of rock expansion rate: The purpose is to determine the free expansion rate and lateral restraint expansion rate of rock: --- Part 15: Method for determination of rock expansion stress: The purpose is to determine the lateral restrained expansion stress of rock: --- Part 16: Method for determination of rock disintegration resistance index: The purpose is to determine the disintegration resistance index of rocks that are prone to disintegration when exposed to water: Determination methods of physical and mechanical properties of coal and rock Part 11: Method for determination of shear strength of coal and rock1 ScopeThis document describes the methods for determining the shear strength of coal and rock, including the determination of the shear strength of standard specimens, the determination of the shear strength of non-standard specimens, and the determination of the shear strength of double Methods for determination of surface shear strength and single-sided shear strength: This document is applicable to the determination of shear strength of coal and rock: The standard specimen shear strength determination is applicable to coal that can be processed into standard specimens: and rock; non-standard specimen shear strength determination is applicable to soft coal and rock that cannot be processed into standard specimens; double-sided shear strength determination and single-sided shear strength determination The surface shear strength test is applicable only to the test of the shear strength of coal and rock:2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document: For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document: GB/T 23561:7-2009 Methods for determination of physical and mechanical properties of coal and rock Part 7: Determination of uniaxial compressive strength and softening coefficient Number calculation method3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 Shear strength The maximum shear stress that a certain section of a coal or rock specimen can withstand under a certain normal stress: 4: Determination of shear strength of standard specimens 4:1 Instruments and Equipment The main instruments and equipment are: a) Diamond machines, stone saws, stone grinders or grinding machines; b) Variable angle shear fixture, see Figure 1; ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 23561.11-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 23561.11-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 23561.11-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 23561.11-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 23561.11-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23561.11-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
