Numerical study of related factors affecting mechanical properties of fractured rock mass and its sensitivity analysis

被引：6

作者：

Zhou, Cong ^{[1
,2
]}

Gao, Wei ^{[1
]}

Hu, Chengjie ^{[1
]}

Chen, Xin ^{[1
]}

Cui, Shuang ^{[1
]}

机构：

[1] Hohai Univ, Sch Civil & Transportat Engn, Key Lab, Minist Educ Geomech & Embankment Engn, 1 Xikang Rd, Nanjing 210098, Jiangsu, Peoples R China

[2] Southeast Univ, Sch Civil Engn, Nanjing 211189, Jiangsu, Peoples R China

来源：

COMPUTATIONAL PARTICLE MECHANICS | 2023年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Fractured rock mass; Mechanical behavior; Numerical simulation; Related factors; Sensitive analysis; FAILURE BEHAVIOR; DEFORMABILITY; STRENGTH; PARTICLE; MODEL;

D O I：

10.1007/s40571-022-00500-x

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

For the deep underground engineering, the fractured surrounding rock mass is the primary cause of the deformation of the underground structure. In this paper, the mechanical behavior of fractured rock mass samples under the influence of different related factors is studied by PFC3D software. Then, the sensitivity of the related factors is studied through the grey correlation analysis. It was found that the mechanical properties of fractured rock are mainly dependent on the lithology and fracture degree of the rock mass, which are the primary related factors affecting the peak and residual strength of the fractured rock, while the direction of the fracture plane and pore volume are the secondary related factors affecting its mechanical properties. Finally, combined with actual engineering, the importance of primary related factors is verified by studying the stability of a roadway in one deep coal mine.

引用

页码：369 / 386

页数：18

共 50 条

[1] Numerical study of related factors affecting mechanical properties of fractured rock mass and its sensitivity analysis
Cong Zhou
Wei Gao
Chengjie Hu
Xin Chen
Shuang Cui
Computational Particle Mechanics, 2023, 10 : 369 - 386
[2] Numerical research on anisotropy mechanical parameters of fractured rock mass
Sun Pei-feng
Yang Tian-hong
Yu Qing-lei
Shen Wei
NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT II, PTS 1-4, 2012, 524-527 : 310 - 316
[3] Fine structure description for fractured rock mass and numerical tests on its engineering properties
Liu, Xiaoli
Wang, Enzhi
Wang, Sijing
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering, 2008, 27 (SUPPL. 2): : 3935 - 3940
[4] Experimental study on mechanical properties of frozen saturated single fractured rock mass
Yang Hao
Zhang Jin-xun
Shan Ren-liang
Wu Fu-mei
Guo Zhi-ming
ROCK AND SOIL MECHANICS, 2018, 39 (04) : 1245 - 1255
[5] Characterization of hydraulic properties of fractured rock mass with numerical model
Kobayashi, A
Hosono, K
Fujita, T
GROUND WATER UPDATES, 2000, : 381 - 386
[6] Numerical study of the mechanical properties of jointed rock mass by using the equivalent rock mass technique
Zhou, Yu
Chai, Jinfei
Wu, Shunchuan
Gao, Yongtao
Electronic Journal of Geotechnical Engineering, 2015, 20 (28): : 13439 - 13449
[7] Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof
Ke Ding
Shitan Gu
Jiaxing Guo
Dong Gu
Zheng Liu
Baozhen Wei
Geotechnical and Geological Engineering, 2019, 37 : 2373 - 2385
[8] Numerical Investigation on Factors Affecting Stability of Roadway Surrounding Rock with Fractured Roof
Ding, Ke
Gu, Shitan
Guo, Jiaxing
Gu, Dong
Liu, Zheng
Wei, Baozhen
GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2019, 37 (04) : 2373 - 2385
[9] Experimental study on mechanical properties of fractured rock mass under different anchoring modes
Lei, Guangfeng
Liu, Quansheng
Peng, Xingxin
Wei, Lai
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, 2020, 24 (07) : 931 - 948
[10] Numerical study of fracture openings by tunnelling in fractured rock mass
Alfonsi, P.
Fouche, O.
Bourgeois, E.
NUMERICAL MODELS IN GEOMECHANICS: NUMOG X, 2007, : 387 - +

← 1 2 3 4 5 →