›› 2009, Vol. 30 ›› Issue (7): 2163-2167.

• Numerical Analysis • Previous Articles     Next Articles

Sensitivity analysis of Hoek-Brown failure criterion parameters on slope projects

HUANG Gao-feng1, LI Zong-li2, MU Sheng-yuan3   

  1. 1. Jiangsu Province Institute of Hydrogeological and Engineering Geological Investigation, Huaian 223005 Jiangsu, China; 2. Northwest A&F University, Yangling 712100 Shannxi, China; 3. Chongqing Research Institute, China Coal Research Institute, Chongqing 400037, China
  • Received:2007-10-09 Online:2009-07-10 Published:2011-03-10

PDF (Chinese)

2575

Abstract:

As a semi-empirical rule for estimating shear strength of integral rock or jointed rock masses, the Hoek-Brown failure criterion has been one of the most useful criteria in forecast and stability analysis of rock masses strength. Three main kinds of rock materials are provided as the representative analysis; the sensitivity degrees of Hoek-Brown criterion parameters to the safety factor of rock slope are searched using the finite difference method and sensitivity analysis method. The research indicates that geological strength index(GSI) is the most sensitive to the rock slope stability, comparing to the material constant mi reflected the degree of rock soft and hard, the degree of disturbance to rock mass D and the rock uniaxial compressive strength ?ci. Finally, the influence rule of GSI to the rock masses angle of friction ? and cohesive strength c is analyzed. The result indicates that for the same GSI, the change scope is reducing for? while mi is changing from small to big and the cohesive strength tends to the identical value for different mi nearby GSI equal to 55.

Key words: Hoek-Brown failure criterion, factor of safety, slope stability, finite difference method

CLC Number: 

  • TU 443
[1] HE Zhi-jun, LEI Hao-cheng, XIA Zhang-qi, ZHAO Lian-heng. Analysis of settlement and internal force displacement of single pile in multilayer soft soil foundation [J]. Rock and Soil Mechanics, 2020, 41(2): 655-666.
[2] SU Yong-hua, LI Cheng-cheng. Stability analysis of slope based on Green-Ampt model under heavy rainfall [J]. Rock and Soil Mechanics, 2020, 41(2): 389-398.
[3] LIU Zhong-yu, XIA Yang-yang, ZHANG Jia-chao, ZHU Xin-mu. One-dimensional elastic visco-plastic consolidation analysis of saturated clay considering Hansbo’s flow [J]. Rock and Soil Mechanics, 2020, 41(1): 11-22.
[4] LIU Hong-yan. Influence of macroscopic and mesoscopic flaws on mechanical behavior of rock mass and slope stability [J]. Rock and Soil Mechanics, 2019, 40(S1): 431-439.
[5] CHEN Dong, WANG En-yuan, LI Nan, . Study on wave field characteristics of different media models of coal and rock [J]. Rock and Soil Mechanics, 2019, 40(S1): 449-458.
[6] YUAN Wei, LIU Shang-ge, NIE Qing-ke, WANG Wei, . An approach for determining the critical thickness of the karst cave roof at the bottom of socketed pile based on punch failure mode [J]. Rock and Soil Mechanics, 2019, 40(7): 2789-2798.
[7] HAN Tong-chun, LIN Bo-wen, HE Lu, SU Yu-qin, . Three-dimensional slope modelling method and its stability based on coupled GIS and numerical simulation software [J]. Rock and Soil Mechanics, 2019, 40(7): 2855-2865.
[8] GONG Wen-hui, ZHAO Xu-dong, QIU Jin-wei, LI Yi, YANG Han. Nonlinear analysis of one-dimensional consolidation of saturated clay including dead-weight effects and large strain [J]. Rock and Soil Mechanics, 2019, 40(6): 2099-2107.
[9] LIU Zhong-yu, CUI Peng-lu, ZHENG Zhan-lei, XIA Yang-yang, ZHANG Jia-chao. Analysis of one-dimensional rheological consolidation with flow described by non-Newtonian index and fractional-order Merchant’s model [J]. Rock and Soil Mechanics, 2019, 40(6): 2029-2038.
[10] YU Guo, XIE Mo-wen, ZHENG Zheng-qin, QIN Shi-he, DU Yan, . Research on slope stability calculation method based on GIS [J]. Rock and Soil Mechanics, 2019, 40(4): 1397-1404.
[11] REN Jin-lan, CHEN Xi, WANG Dong-yong, LÜ Yan-nan. Instantaneous linearization strength reduction technique for generalized Hoek-Brown criterion [J]. Rock and Soil Mechanics, 2019, 40(12): 4865-4872.
[12] XIAHOU Yun-shan, ZHANG Shu, TANG Hui-ming, LIU Xiao, WU Qiong, . Study of structural cross-constraint random field simulation method considering spatial variation structure of parameters [J]. Rock and Soil Mechanics, 2019, 40(12): 4935-4945.
[13] WU Shun-chuan, ZHANG Min, ZHANG Shi-huai, JIANG Ri-hua, . Study on determination method of equivalent Mohr-Coulomb strength parameters of a modified Hoek-Brown failure criterion [J]. Rock and Soil Mechanics, 2019, 40(11): 4165-4177.
[14] LI Dian-qing, ZHOU Qiang, CAO Zi-jun, . Safety criteria for geotechnical design based on generalized reliability ratio of safety margin [J]. Rock and Soil Mechanics, 2019, 40(10): 3977-3986.
[15] LIU Feng-tao, ZHANG Shao-fa, DAI Bei-bing, ZHANG Cheng-bo, LIN Kai-rong, . Upper bound limit analysis of soil slopes based on rigid finite element method and second-order cone programming [J]. Rock and Soil Mechanics, 2019, 40(10): 4084-4091.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LIU Xiao-wen，CHANG Li-jun，HU Xiao-rong. Experimental research of matric suction with water content and dry density of unsaturated laterite[J]. , 2009, 30(11): 3302 -3306 .
[2] HUANG Jian-hua，SONG Er-xiang. Research on mechanical properties of frozen curtain in large anchorage foundation pit engineering[J]. , 2009, 30(11): 3372 -3378 .
[3] WANG Guan-shi, LI Chang-hong, CHEN Bao-jun, LI Sh-ihai. Propagation law of stress wave in nonlinear structural surface medium[J]. , 2009, 30(12): 3747 -3752 .
[4] WANG Zhao-yang, XU Qiang, NI Wan-kui. Study of undisturbed loess stress-strain relation during CT test[J]. , 2010, 31(2): 387 -391 .
[5] WAN Shao-shi, NIAN Ting-kai, JIANG Jing-cai, LUAN Mao-tian. Discussion on several issues in slope stability analysis based on shear strength reduction finite element methods (SSR-FEM)[J]. , 2010, 31(7): 2283 -2288 .
[6] YAN Tie, LI Wei, BI Xue-liang. Research on effective stress model in porous media based on fractal method[J]. , 2010, 31(8): 2625 -2629 .
[7] LIU Jia, WANG Dong. Tension resistance and suction of plate anchor foundation in normally consolidated clay[J]. , 2009, 30(3): 735 -740 .
[8] XU Wei-sheng, CHAI Jun-rui, CHEN Xing-zhou, SUN Xu-shu. Study of nonlinear noncubic seepage in netwok rock and its application[J]. , 2009, 30(S1): 53 -57 .
[9] ZHAO Shang-yi, ZHENG Ying-ren, LI An-hong, QIU Wen-ping, TANG Xiao-song. Application of multi-row embedded anti-slide piles to landslide of Wulong county government[J]. , 2009, 30(S1): 160 -164 .
[10] LIU Zhen-ping, HE Huai-jian, ZHU Fa-hua. Study of technology of fast 3D modeling and visualization based on borehole data[J]. , 2009, 30(S1): 260 -266 .
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