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http://dx.doi.org/10.12989/scs.2014.17.6.791

Study on anchorage effect on fractured rock  

Wang, Jing (Geotechnical and Structural Engineering Research Center, Shandong University)
Li, Shu-Cai (Geotechnical and Structural Engineering Research Center, Shandong University)
Li, Li-Ping (Geotechnical and Structural Engineering Research Center, Shandong University)
Zhu, Weishen (Geotechnical and Structural Engineering Research Center, Shandong University)
Zhang, Qian-Qing (Geotechnical and Structural Engineering Research Center, Shandong University)
Song, Shu-Guang (Geotechnical and Structural Engineering Research Center, Shandong University)
Publication Information
Steel and Composite Structures / v.17, no.6, 2014 , pp. 791-801 More about this Journal
Abstract
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.
Keywords
crack propagation; discontinuous deformation analysis for rock failure; jointed rock mass; random joints; anchored-fractured specimen; anchored rock mass; laboratory experiment;
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