Rock and Soil Mechanics ›› 2023, Vol. 44 ›› Issue (9): 2545-2554.doi: 10.16285/j.rsm.2022.1549

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on shear properties of fault gouge with different mineral compositions

XIE Li-huan1, 2, LIU He-juan1, 2, BAN Sheng-nan1, 2, MAO Hai-jun1, 2, XIA De-bin1, 2, SONG Yu-jia1, 2, TONG Rong-chen1, 2, YING Qi-qi1, 2   

  1. 1. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Science, Wuhan, Hubei 430071, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-10-08 Accepted:2022-12-08 Online:2023-09-11 Published:2023-09-02
  • Supported by:
    This work was supported by CAS Pioneer Hundred Talents Program (Y826031C01) and the National Natural Science Foundation (U22A20166).

PDF (Chinese)

212

PDF (English)

7

Abstract: The strength parameters of fault gouge is significant for the fault sealing of underground gas storage. In this paper, direct shear tests are performed for fault gouge composed of different contents of kaolinite(K), montmorillonite(M) and quartz(Q), thus obtaining the shear strength parameters (cohesion c and internal friction angle φ ) of various types of fault gouge. The results reveal that: (1) the cohesion of fault gouge is positively correlated with the content of montmorillonite and negatively correlated with the content of quartz. The cohesion of fault gouge specimens with high content of montmorillonite (≥40%) is positively correlated with the content of kaolinite; (2) The internal friction angle of fault gouge is negatively correlated with the content of montmorillonite and positively correlated with the content of kaolinite; (3) The cohesion of fault gouge is positively correlated with the plasticity index IP, while the internal friction angle is negatively correlated with the plasticity index IP; (4) The predicted shear strength parameters of fault gouge obtained by statistical methods match well with the experimental results, indicating that statistical method is feasible in predicting the shear strength of fault gouge.

Key words: fault gouge, shear properties, cohesion, internal friction angle, mineral composition

CLC Number: 

  • TU411
[1] LIU Fei-yu, ZHANG Shi-xun, XIONG Bo, . Effect of roughness on shear properties of sand-concrete interface with different particle sizes [J]. Rock and Soil Mechanics, 2023, 44(增刊): 419-426.
[2] ZHANG Heng-zhi, XU Chang-jie, HE Zhai-bing, HUANG Zhan-jun, HE Xiao-hui, . Study of active earth pressure of finite soils under different retaining wall movement modes based on discrete element method [J]. Rock and Soil Mechanics, 2022, 43(1): 257-267.
[3] ZHENG Luo-bin, WANG Liang-qing, ZHU Lin-feng, JIANG Yao-fei, WANG Bin. Experimental study on the effect of locking mode on shear characteristics of bolted rock joint [J]. Rock and Soil Mechanics, 2021, 42(4): 1056-1064.
[4] ZHANG Heng-zhi, XU Chang-jie, LIANG Lu-ju, HOU Shi-lei, FAN Run-dong, FENG Guo-hui. Discrete element simulation and theoretical study of active earth pressure against rigid retaining walls under RB mode for finite soils [J]. Rock and Soil Mechanics, 2021, 42(10): 2895-2907.
[5] JIANG Jing-shan, ZUO Yong-zhen, CHENG Zhan-lin, PAN Jia-jun, . Investigation of strength properties of coarse granular material at different densities using large-scale true triaxial tests [J]. Rock and Soil Mechanics, 2020, 41(8): 2601-2608.
[6] BAI Xue-yuan, WANG Xue-bin, SHU Qin, . Continuum-discontinuum simulation of effects of internal friction angle on local fracture of circular cavern surrounding rock under hydrostatic pressure [J]. Rock and Soil Mechanics, 2020, 41(7): 2485-2493.
[7] CAI Gai-pin, XUAN Lü-wei, ZHANG Xue-tao, GUO Jin. Investigation into the crushing process in multi-scale cohesive particle model [J]. Rock and Soil Mechanics, 2020, 41(6): 1809-1817.
[8] XU Yun-shan, SUN De-an, ZENG Zhao-tian, LÜ Hai-bo, . Temperature effect on thermal conductivity of bentonites [J]. Rock and Soil Mechanics, 2020, 41(1): 39-45.
[9] WANG Long, ZHU Jun-gao, GUO Wan-li, LU Yang-yang, . Compression model for cohesionless soils and its verification [J]. Rock and Soil Mechanics, 2020, 41(1): 229-234.
[10] XIE Hui-hui, XU Zhen-hao, LIU Qing-bing, HU Gui-yang, . Evolution of peak strength and residual strength of weak expansive soil under drying-wetting cycle paths [J]. Rock and Soil Mechanics, 2019, 40(S1): 245-252.
[11] ZHAO Bo, ZHANG Guang-qing, TANG Mei-rong, ZHUANG Jian-man, LIN Can-kun, . Mechanism of the effect of long-term water injection on mechanical properties of tight sandstone [J]. Rock and Soil Mechanics, 2019, 40(9): 3344-3350.
[12] WANG Peng-fei, TAN Wen-hui, MA Xue-wen, LI Zi-jian, LIU Jing-jun, WU Yang-fan, . Relationship between strength parameter and water content of fault gouge with different degrees of consolidation [J]. Rock and Soil Mechanics, 2019, 40(5): 1657-1662.
[13] LI Xiao-zhao, QI Cheng-zhi, SHAO Zhu-shan, QU Xiao-lei, . Micromechanics-based model study of shear properties of brittle rocks [J]. Rock and Soil Mechanics, 2019, 40(4): 1358-1367.
[14] JI En-yue, CHEN Sheng-shui, FU Zhong-zhi, . Experimental investigations on tensile cracking mechanical characteristics of gravelly core material [J]. Rock and Soil Mechanics, 2019, 40(12): 4777-4782.
[15] ZHANG Fan, HU Wei, GUO Han-qun, HU Da-wei, SHENG Qian, SHAO Jian-fu,. Nanoindentation tests on granite after heat treatment [J]. , 2018, 39(S1): 235-243.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YAO Yang-ping, HOU Wei. Basic mechanical behavior of soils and their elastoplastic modeling[J]. , 2009, 30(10): 2881 -2902 .
[2] XU Jin-ming, QIANG Pei, ZHANG Peng-fei. Texture analysis of photographs of silty clay[J]. , 2009, 30(10): 2903 -2907 .
[3] XIANG Tian-bing, FENG Xia-ting, CHEN Bing-rui, JIANG Quan, ZHANG Chuan-qing. Rock failure mechanism and true triaxial experimental study of specimens with single structural plane under three-dimensional stress[J]. , 2009, 30(10): 2908 -2916 .
[4] SHI Yu-ling, MEN Yu-ming, PENG Jian-bing, HUANG Qiang-bing, LIU Hong-jia. Damage test study of different types structures of bridge decks by ground-fissure[J]. , 2009, 30(10): 2917 -2922 .
[5] XIA Dong-zhou, HE Yi-bin, LIU Jian-hua. Study of damping property and seismic action effect for soil-structure dynamic interaction system[J]. , 2009, 30(10): 2923 -2928 .
[6] XU Su-chao, FENG Xia-ting, CHEN Bing-rui. Experimental study of skarn under uniaxial cyclic loading and unloading test and acoustic emission characteristics[J]. , 2009, 30(10): 2929 -2934 .
[7] ZHANG Li-ting, QI Qing-lan, WEI Jing HUO Qian, ZHOU Guo-bin. Variation of void ratio in course of consolidation of warping clay[J]. , 2009, 30(10): 2935 -2939 .
[8] ZHANG Qi-yi. Study of failure patterns of foundation under combined loading[J]. , 2009, 30(10): 2940 -2944 .
[9] YI Jun, JIANG Yong-dong, XUAN Xue-fu, LUO Yun, ZHANG Yu. A liquid-solid dynamic coupling modelof ultrasound enhanced coalbed gas desorption and flow[J]. , 2009, 30(10): 2945 -2949 .
[10] TAO Gan-qiang, YANG Shi-jiao, REN Feng-yu. Experimental research on granular flow characters of caved ore and rock[J]. , 2009, 30(10): 2950 -2954 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd