Study on the System of Multi-Directioncal Inclined Modular Anchorage in the Tunnel Surrounding Rock of Horizontal Bedded

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Abstract:

Tunnel construction, inevitably crosses the surrounding rock of the horizontal bedded .The construction prone to bring about the accident of the local deformation, swaping blocks even the overall collapse, in particular,before completing supporting and reinforcement. Thus, it is particularly important to finish the anchoring timely. The design and construction methods of the conventional vertical anchoring system easily leads to personnel injured, the quality of construction is difficult to guarantee, etc. In the paper, the construction technology which is we adopted is using the way to unite the bedded wall rock inclined bolt and the vertical rock layers bolt .In anchoring, we optimize the spatial arrangement and the construction time. Simultaneously, we analysis the system which is the paper adopted and the tradition technology by the mechanical theory. The results show that there is the consistent effect between the new technology and the old one. However, the new one is to reduce the construction risk and to ensure the constructors’ safe. In conclusion, the new system has the significance of guidance and reference in tunneling.

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1761-1764

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] Zhengang Zhang, Hongru Zhang, Yunqing Zhang, Zhongsheng Tan. Research on Dynamiting and Anchor in Tunneling of Stratified Rock. China Journal of Highway and Transport. Forum Vol. 16 (2003), p.74. In Chinese.

Google Scholar

[2] Jun sun: Underground structures (Science Publications, China 1988).

Google Scholar

[3] Zhongming He, Hang Lin, Lianjun Zhou. The Numerical Modelling for the Stress Characteristic of Stratified Rock Samples under Uniaxial Compression. Geotechnical Special Publication. Forum Vol. 216 (2011), p.17.

DOI: 10.1061/47627(406)3

Google Scholar

[4] Li Liu, Wenxi Zhu, Junfu Lu, Wei Liang, Yue Li. Research on Relation Between Damage Evolution and Strain of Stratified Rock. Chinese Journal of Rock Mechanics and Engineering. Forum Vol. 25 (2006), p.350.

Google Scholar

[5] Peng Jia, Chunan Tang, Guolian Zhang. Failure Mechanism Study on Vertically Stratified Rock Mass around Deep Tunnel. Journal of Northeastern University. Forum Vol. 29 (2008), p.893. In Chinese.

Google Scholar

[6] Zhongming He, Zhongxin Cai, Ping Cao, Jianhua Liu, Lianjun Zhou. Numerical Analysis for Stratified Rock Slope Stability Reinforced by Bolts. Journal of Central South University (Science and Technology). Forum Vol. 42 (2011), p.2115. In Chinese.

Google Scholar

[7] Leandro R. Alejano, Javier Taboada, Fernando García-Bastante, Pedro Rodriguez. Multi-approach Back-analysis of a Roof Bed Collapse in a Mining Room Excavated in Stratified Rock. International Journal of Rock Mechanics and Mining Sciences. Forum Vol. 45 (2008), p.899.

DOI: 10.1016/j.ijrmms.2007.10.001

Google Scholar

[8] Z.X. Zhang, Y. Xu, P.H.S.W. Kulatilake, X. Huang. Physical model test and numerical analysis on the behavior of stratified rock masses during underground excavation. International Journal of Rock Mechanics and Mining Sciences. Forum Vol. 49 (2012), p.134.

DOI: 10.1016/j.ijrmms.2011.11.001

Google Scholar

[9] JiaJyun Dong, ChiaHuei Tu, WongRu Lee, YunJia Jheng, Effects of hydraulic conductivity/strength anisotropy on the stability of stratified, poorly cemented rock . Computers and Geotechnics. Forum Vol. 40 (2012), p.147.

DOI: 10.1016/j.compgeo.2011.11.001

Google Scholar

[10] Qineng Weng, Qianguan Zhang, China. Patent 6,231,666. (2011)

Google Scholar