岩石模型结构面的取样代表性试验研究

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (279 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Representative sampling of rock joints is the precondition for direct shear test of the structural plane models with different sizes，which directly affects the effectiveness and reliability of the experimental result of shear strength scale effect. The joint roughness coefficient(JRC) distribution regularity is obtained by analyzing the statistical results of JRC distribution of 18 groups of rock joints with size of 10 cm. The statistical results indicate the necessity of representative evaluation for structural plane models. According to the distribution features of the nonuniformity of JRC，and the comparative analysis between simple random sampling method and stratified sampling method，the representative sampling method of structural plane model based on stratified sampling is proposed. The stratified proportions are determined by the quartile method of JRC. The sampling quantity is calculated through the stratified sampling formula. The sampling representativeness and mechanical reliability are inspected by the mechanical mechanism analysis of rock joints shear strength. The results show that the sampling method can represent the distribution of surface morphology for the certain size；and the sampling result also preferably meets the accuracy requirement of mechanical experiment.

Key words： rock mechanics structural plane of model roughness coefficient nonuniformity representativeness sampling method

Received: 28 May 2013

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I10/2008

[1]	BARTON N R，CHOUBEY V. The shear strength of rock joints in theory and practice[J]. Rock Mechanics，1977，10(1/2)：1-54. " target="_blank">
[2]	BANDIS S，LUMSDEN A C，BARTON N R. Experimental studies of scales effects on the shear behaviour of rock joints[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1981，18(1)：1-21. " target="_blank">
[3]	EINSTEIN H H，VENEZIANO D，BAECHER G B，et al. The effect of discontinuity persistence on rock slope stability[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1983，20(5)：227-236. " target="_blank">
[4]	OHNISHI Y，HERDA H，YOSHINAKA R. Shear strength scale effect and the geometry of single and repeated rock joints[C]// Proceedings of the 2nd International Conference on Scale Effect in Rock Masses. Lisbon，Portugal：[s. n.]，1993：167-173. " target="_blank">
[5]	郭志. 实用岩体力学[M]. 北京：地震出版社，1996：159-175. (GUO Zhi. Practical rockmass mechanics[M]. Beijing：Earthquake Press，1996：159-175.(in Chinese) " target="_blank">
[6]	HUANG T H. Experimental and mathematical modeling for fracture of rock joint with regular asperities[J]. Engineering Fracture Mechanics，2002，69(17)：1 977-1 996. " target="_blank">
[7]	沈明荣，张清照. 规则齿型结构面剪切特性的模型试验研究[J]. 岩石力学与工程学报，2010，29(4)：713-719.(SHEN Mingrong，ZHANG Qingzhao. Experimental study of shear deformation characteristics of rock mass discontinuities[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(4)：713-719.(in Chinese))
[8]	朱小明，李海波，刘博，等. 含一阶和二阶起伏体节理剪切强度的试验研究[J]. 岩石力学与工程学报，2011，30(9)：1 810-1 818. (ZHU Xiaoming，LI Haibo，LIU Bo，et al. Experimental study of shear strength of joints with first-order and second-order asperities[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(9)：1 810-1 818. (in Chinese)) " target="_blank">
[9]	黄曼，杜时贵，罗战友，等. 系列尺度岩石结构面相似表面模型制作的逆向控制技术研究[J]. 岩土力学，2013，34(4)：1 211-1 216. (HUANG Man，DU Shigui，LUO Zhanyou，et al. Study of inverse controlling technology for series scales similar surface model making of rock structural plane[J]. Rock and Soil Mechanics，2013，34(4)：1 211-1 216.(in Chinese)) " target="_blank">
[10]	BARTON N R，BANDIS S. Review of predictive capabilities of JRC-JCS model in engineering practice[C]// Proceedings of International Conference on Rock Jionts. Rotterdam：A. A. Balkema，1990：603-610. " target="_blank">
[11]	GRASSELLI G. Shear strength of rock joints based on quantified surface description[J]. Rock Mechanics and Rock Engineering，2006，39(4)：295-314.
[12]	UENG T S，JOU Y J，PENG I H. Scale effect on shear strength of computer-aided- manufactured joints[J]. Journal of Geoengineering，2010，5(2)：29-37. " target="_blank">
[13]	DU S G，HU Y J，HU X F. Measurement of joint roughness coefficient by using profilograph and roughness ruler[J]. Journal of Earth Science，2009，20(5)：890-896.
[14]	中华人民共和国行业标准编写组. DL/T 5368—2007水电水利工程岩石试验规程[S]. 北京：中国水利水电出版社，2007.(The Professional Standards Compilation Group of People′s Republic of China. DL/T 5368—2007 Code for rock tests of hydroelectric and water conservancy engineering[S]. Beijing：China Water Power Press，2007.(in Chinese)) " target="_blank">
[15]	中华人民共和国行业标准编写组. 岩体结构面抗剪强度综合评价应用技术规程[S]. 北京：中国建筑工业出版社，2006.(The Professional Standards Compilation Group of People′s Republic of China. Practical technique methods of synthetical estimation for shear strength of rock discontinuities[S]. Beijing：China Architecture and Building Press，2006.(in Chinese)) " target="_blank">
[16]	李金昌. 应用抽样技术[M]. 北京：科学出版社，2010：42-93.(LI Jinchang. Application of sampling technique[M]. Beijing：Science Press，2010：42-93.(in Chinese)) " target="_blank">
[17]	DU S G，HU Y J，HU X F，et al. Comparison between empirical estimation by JRC-JCS model and direct shear test for joint shear strength[J]. Journal of Earth Science，2011，22(3)：411-420.