Study on anchorage effect on fractured rock

被引：15
|
作者：
Wang, Jing [1 ,2 ]
Li, Shu-Cai [1 ]
Li, Li-Ping [1 ,2 ]
Zhu, Weishen [1 ]
Zhang, Qian-Qing [1 ]
Song, Shu-Guang [1 ]
机构：
[1] Shandong Univ, Geotechn & Struct Engn Res Ctr, Jinan 250061, Peoples R China
[2] Minist Land & Resources, Key Lab Coal Resources Explorat & Comprehens Util, Beijing, Peoples R China
来源：
STEEL AND COMPOSITE STRUCTURES | 2014年 / 17卷 / 06期
关键词：
crack propagation; discontinuous deformation analysis for rock failure; jointed rock mass; random joints; anchored-fractured specimen; anchored rock mass; laboratory experiment; TUNNEL; MASS;
D O I：
10.12989/scs.2014.17.6.791
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The effects of anchor on fractured specimens in splitting test are simulated by DDARF method, the results of which are compared with laboratory test results. They agree well with each other. The paper contents also use the laboratory model test. The main research objects are three kinds of specimens, namely intact specimens, jointed specimens and anchored-jointed specimens. The results showed that with the joint angle increased, the weakening effects of jointed rock mass are more obvious. At these points, the rock bolts' strengthening effects on the specimens have become more significant. There is a significant impact on the failure modes of rock mass by the joint and the anchorage.
引用
收藏
页码：791 / 801
页数：11
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