板裂结构岩石力学试验及破裂断口细观形貌特征分析

doi:10.13722/j.cnki.jrme.2014.0993

Abstract
Figure/Table
References (19)
Related Citation (15)

Download: PDF (2234 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract

In the region of slab-rent structure rock mass，the representative rock blocks(i.e.，slab rupture protolith)，in which the slab rupture has occurred，were selected. To obtain the anisotropic properties for related strength parameters，the uniaxial compression tests with the loading direction vertical and parallel to slab rupture direction are performed. At the same time，the analysis of mesoscopic morphology of rupture surface is conducted using scanning electron microscope(SEM). In order to provide the theoretical basis for the rock mass slab rupture，we try to explore the potential inherent connection among the rock mass slab rupture，rock mechanical properties and its composition. The study shows that：the protolith with slab rupture has anisotropic characteristics and close relation with the direction of slab rupture；under the same magnitude of load，the load parallel to the direction of slab rupture is more likely to cause deformation and failure of potential slab-rent rock mass than the load vertical to the slab rupture direction；when the load is vertical to the direction of slab rupture，the rupture surface often shows both transgranular and intergranular fratures but the latter one dominates；when the load is parallel to the direction of slab rupture，the rupture surface is relative smooth and the area with intergranular fracture is larger than the area with transgranular fracture；the defects and damage in the slab rupture protolith are nearly parallel to the direction of slab rupture，and they are not only the foundation of slab rupture，but also be further developed due to the occurrence of slab rupture.

Key words： rock mechanics slab-rent structure rock mass slab rupture protolith scanning electron microscopy (SEM) transgranular fracture intergranular fracture

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LIU Yunpeng1
	DENG Hui2
	HUANG Runqiu2

Cite this article:

LIU Yunpeng1,DENG Hui2,HUANG Runqiu2. MECHANICAL TEST OF SLAB-RENT STRUCTURE ROCK AND MESOSCOPIC MORPHOLOGY ANALYSIS OF RUPTURE SURFACE[J]. , 2015, 34(S2): 3852-3861.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.0993 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/3852

[1] 蔡美峰，何满潮，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2002：452–453.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and engineering[M]. Beijing：Science Press，2002：452–453.(in Chinese))

[2] 孙广忠，孙毅. 岩体力学原理[M]. 北京：科学出版社，2011：67–81.(SUN Guangzhong，SUN Yi. Principle of rock mass[M]. Beijing：Science Press，2011：67–81.(in Chinese))

[3] 谢和平，陈至达 . 岩石断裂的微观机制分析[J]. 煤炭学报，1989，(2)：57–67.(XIE Heping，CHEN Zhida. Analysis of rock fracture micro-mechanism[J]. Journal of China Coal Society，1989，(2)：57–67.(in Chinese))

[4] 刘小明，李焯芬. 岩石断口微观断裂机制分析与实验研究[J]. 岩石力学与工程学报，1997，16(6)：509–513.(LIU Xiaoming，LEE C F. Microfailure mechanism analysis and test study for rock failure surface[J]. Chinese Journal of Rock Mechanics and Engineering，1997，16(6)：509–513.(in Chinese))

[5] 尚嘉兰，孔常静，李廷芥，等. 岩石细观损伤破坏的观测研究[J]. 实验力学，1999，14(3)：373–383.(SHANG Jialan，KONG Changjing，LI Tingjie，et al. Observation and study on meso-damage and fracture of rock[J]. Journal of Experiment Mechanics，1999，14(3)：373–383.(in Chinese))

[6] 朱珍德，渠文平，蒋志坚. 岩石细观结构量化试验研究[J]. 岩石力学与工程学报，2007，26(7)：1 313–1 324.(ZHU Zhende，QU Wenping，JIANG Zhijian. Quantitative test study on mesostructure of rock[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(7)：1 313–1 324.(in Chinese))

[7] 温世亿，李静，苏霞，等 . 复杂应力条件下围岩破坏的细观特征研究 [J]. 岩土力学，2010，31(8)：2 399–2 406.(WEN Shiyi，LI Jing，SU Xia，et al. Studies of mesomechanical structure characters of surrounding rock failure under complex stress state[J]. Rock and Soil Mechanics，2010，31(8)：2 399–2 406.(in Chinese))

[8] 郑达，巨能攀. 千枚岩岩石微观破裂机制与断裂特征研究[J]. 工程地质学报，2011，19(3)：317–322.(ZHENG Da，JU Nengpan. Scanning electronic microscope tests for rock micro-rupture mechanism and fracture characteristic of phyllite[J]. Journal of Engineering Geology，2011，19(3)：317–322.(in Chinese))

[9] IPOHORSKI M，LUPPO M I，CASTILLO G R，et al. Failure analysis of a steam valve stem[J]. Materials Characterization，2003，(5)：23–30.

[10] 于庆磊，杨天鸿，郑超，等. 岩石细观结构对其变形强度影响的数值分析[J]. 岩土力学，2011，32(11)：3 468–3 472.(YU Qinglei，YANG Tianhong，ZHENG Chao，et al. Numerical analysis of influence of rock mesostructure on its deformation and strength[J]. Rock and Soil Mechanics，2011，32(11)：3 468–3 472.(in Chinese))

[11] 申林方，冯夏庭，潘鹏志，等. 应力作用下岩石的化学动力学溶解机制研究[J]. 岩土力学，2011，32(5)：1 320–1 326.(SHEN Linfang， FENG Xiating，PAN Pengzhi，et al. Chemical kinetics dissolution mechanism of rock under stress[J]. Rock and Soil Mechanics，2011，32(5)：1 320–1 326.(in Chinese))

[12] 徐金明，谢芝蕾，贾海涛. 石灰岩细观力学特性的颗粒流模拟[J]. 岩土力学，2010，31(增2)：390–395.(XU Jinming，XIE Zhilei，JIA Haitao. Simulation of mesomechanical properties of limestone using particle flow code[J]. Rock and Soil Mechanics，2010，31(Supp.2)：390–395.(in Chinese))

[13] 李树春，许江，杨春和，等. 循环荷载下岩石损伤的CT 细观试验研究[J]. 岩石力学与工程学报，2009，28(8)：1 604–1 609.(LI Shuchun，XU Jiang，YANG Chunhe，et al. Study of CT meso- experiment of rock damage under cyclic load[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(8)：1 604–1 609.(in Chinese))

[14] 梁正召，唐春安，张永彬，等. 岩石直接拉伸破坏过程及其分形特征的三维数值模拟研究[J]. 岩石力学与工程学报，2008，27(7)： 1 402–1 410.(LIANG Zhengzhao，TANG Chun¢an，ZHANG Yongbin，et al. Three-dimensional numerical study of direct tensile fracture of rock and associated fractal[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 402–1 410.(in Chinese))

[15] 谢卫红，高峰，谢和平. 细观尺度下岩石热变形破坏的实验研究[J]. 实验力学，2005，20(4)：628–634.(XIE Weihong，GAO Feng，XIE Heping. An experimental study on rock thermal damage fracture under meso-size[J]. Journal of Experiment Mechanics，2005，20(4)：628–634.(in Chinese))

[16] 李浩，任林娥. 岩石软化的细观损伤模型[J]. 武汉大学学报：工学版，2001，34(2)：6–9.(LI Hao，REN Line. Softening micromechanical damage model of rock[J]. Engineering Journal of Wuhan University，2001，34(2)：6–9.(in Chinese))

[17] 任建喜. 三轴压缩岩石损伤扩展细观机制及其本构模型[J]. 煤炭学报，2001，26(6)：578–583.(REN Jianxi. Rock meso-damage propagation law in the triaxial compression loading and its constitutive model[J]. Journal of China Coal Society，2001，26(6)：578–583.(in Chinese))

[18] 尹光志，鲜学福，许江，等. 岩石细观断裂过程的分叉与混沌特征 [J]. 重庆大学学报：自然科学版，2000，23(2)：56–59.(YIN Guangzhi，XIAN Xuefu，XU Jiang，et al. Research on bifurcation and chaos characteristics of meso-scopic fracture process of rock[J]. Journal of Chongqing University：Natural Science，2000，23(2)：56–59.(in Chinese))

[19] 张汝藩，杨主恩，陶克捷，等. 扫描电镜与微观地质研究[M]. 北京：学苑出版社，1999：11–14.(ZHANG Rufan，YANG Zhuen，TAO Kejie，et al. Microgeology research in scanning electron microscopy[M]. Beijing：Academy Press，1999：11–14.(in Chinese))