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含有软岩层的煤层巷道采用锚杆支护是比较困难的。其主要问题是软岩层的鼓帮难以解决。本文提出了让压支护的原理,探讨了条带碹的支护机理,并首次在工程实践中,采用条带碹与锚杆联合支护的支护结构解决了这一难题。
The coal seam roadway with soft rock layer using bolt support is more difficult. The main problem is that it is difficult to solve the problem of the drums of soft rock formations. In this paper, the principle of pressure support is put forward, and the support mechanism of strip 碹 is discussed. For the first time in engineering practice, the support structure with strip 碹 and anchor rod joint support solves this problem.