A damage mechanical model applied to analysis of mechanical properties of jointed rock masses

被引：47

作者：

Yang, Wendong ^{[1
]}

Zhang, Qianbing ^{[2
]}

Ranjith, P. G. ^{[2
]}

Yu, Rangang ^{[1
]}

Luo, Guangyu ^{[1
]}

Huang, Chenchen ^{[1
]}

Wang, Gang ^{[3
]}

机构：

[1] China Univ Petr, Coll Pipeline & Civil Engn, D Bldg, Qingdao 266580, Shandong, Peoples R China

[2] Monash Univ, Dept Civil Engn, Deep Earth Energy Res Lab, Melbourne, Vic 3800, Australia

[3] Shandong Univ Sci & Technol, Shandong Prov Key Lab Civil Engn Disaster Prevent, Qingdao 266590, Shandong, Peoples R China

来源：

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY | 2019年 / 84卷

基金：

美国国家科学基金会;

关键词：

Damage mechanics; Jointed rock masses; Underground cavern; Numerical simulation; Damage model; FLAC(3D); CRACK COALESCENCE; FRACTURE COALESCENCE; MULTIPLE FLAWS; BEHAVIOR; COMPRESSION; DESIGN; DEFORMATION; PROPAGATION; PARAMETERS; SPECIMENS;

D O I：

10.1016/j.tust.2018.11.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The mechanical properties of jointed rock masses significantly affect the long-term behaviour and safety of engineering projects. In this paper, a damage mechanical theory is adopted to deal with some sets of joints distributed in rock masses. Based on the geometrical distribution of joints, a damage model which considers the influence of normal vector and area density of joints is used to describe the discontinuities. This damage model is programmed in finite difference software FLAC(3D), and an example of jointed rock masses is used to verify the validity of the model, which shows that this model can well reflect the influence of joint angle and joint density. Finally, we use this model to predict the displacements and damage zones in the rock masses surrounding an underground cavern. The simulation results show a good agreement with field measurements.

引用

页码：113 / 128

页数：16

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