Steel and Composite Structures

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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)
  • Received : 2013.03.19
  • Accepted : 2014.04.22
  • Published : 2014.12.25
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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

Acknowledgement

Supported by : National Basic Research Program of China

References

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