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本文指出了我国现有沿空留巷支护存在的问题,分析了沿空留巷支架的工作状态和载荷构成,提出了沿空留巷支架的合理工作特性、工作阻力以及支护方式。本文还根据大量的矿压观测资料,对不同围岩条件和支护形式下的沿空留巷围岩移近量作出了估计,提出了对支架设计的要求。
This paper points out the problems existing in the existing gob-side entry retaining in our country, analyzes the working status and load constitution of gob-side entry retaining, proposes the reasonable working characteristic, working resistance and supporting method of gob-side entry retaining. Based on a large amount of rock pressure observation data, this paper also estimates the surrounding rock displacement of gob-side entry retaining with different surrounding rock conditions and support forms, and puts forward the requirements for the support design.