Study on Bolt (Cable) Supporting Design Method Based on Tunnel Fall Hidden Dangers Classification

Abstract:

In order to give scientific and rational targeted support design of the roadway under the different rock conditions, ensure the safety of the roadway, and reduce support costs. By theoretical analysis, establishing the roadway hidden dangers grading mechanical model, proposing the method of tunnel fall hidden dangersclassification, on this basis, giving adaptive evaluation through existing branch of engineering analogy, loose circle test method, the theoretical calculations, numerical simulation methods supporting design methods, determining the theoretical calculation method based on the roadway roof stability classification for the design of bolt (Cable) support of roadway,giving the formula of roadway support parameters parameter quantitative. The same time, the research based on tunnel fall hidden dangers grading and the parameters design method of supporting, givingroof support parameter design examples of different surrounding rock level conditions anddifferent support mode.

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 2782-2787
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.2782
• Online since: August 2013
• Authors: Qin Xiang Zhang, Hou Sheng Jia, Hao Zhang, Ye Wang, Ming Sheng Yu
• Keywords: Hidden Dangers Classification, Stable Rock, Support Design, Tunnel Fall

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