耦合支护技术在铺龙湾煤矿巷道稳定性控制中的应用探究
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摘要
本文以铺龙湾煤矿5102工作面回风巷出现的严重变形破坏情况作为研究对象,通过现场勘测分析,得到了巷道变形破坏的特征,并对巷道变形破坏的原因进行了研究分析,认为支护设计不合理、巷道自稳能力未充分发挥、巷道地质条件较差等因素是导致出现严重变形破坏的主要原因。结合该矿实际情况,设计采用了"锚杆+锚索+U型钢+W钢带"耦合支护方案,实现了支护系统的协同,结果表明,返修支护方案有效保证了巷道的稳定性。
The severe deformation and failure of the 5102 working face returning roadway of Pulongwan Mine was taken as the research object. Through the site survey and analysis, the characteristics of roadway deformation and failure were obtained, and the causes of roadway deformation and damage were studied and analyzed. Factors such as unreasonable design of the protection, insufficient self-stabilization of the roadway, and poor geological conditions of the roadway were the main causes of severe deformation and damage. Combined with the actual situation of the mine, the design adopted the "bolt+ anchor cable + U-shaped steel + W steel belt" coupling support scheme to achieve the synergy of the support system. The results showed that the repair support scheme effectively ensured the stability of the roadway.
The severe deformation and failure of the 5102 working face returning roadway of Pulongwan Mine was taken as the research object. Through the site survey and analysis, the characteristics of roadway deformation and failure were obtained, and the causes of roadway deformation and damage were studied and analyzed. Factors such as unreasonable design of the protection, insufficient self-stabilization of the roadway, and poor geological conditions of the roadway were the main causes of severe deformation and damage. Combined with the actual situation of the mine, the design adopted the "bolt+ anchor cable + U-shaped steel + W steel belt" coupling support scheme to achieve the synergy of the support system. The results showed that the repair support scheme effectively ensured the stability of the roadway.
引文
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[5]林健,范明建,司林坡,等.近距离采空区下松软破碎煤层巷道锚杆锚索支护技术研究[J].煤矿开采,2010,15(4):45-50,62.
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