煤矿突水后巷道支护补强的设计与应用效果

Design and Effects on Reinforcement of Roadway Support after Water Inrush in Coal Mine

针对煤矿出现的巷道突水问题,在对该矿工作面及原巷道支护介绍的基础上,提出了煤矿突水后巷道支护补强设计方案,并对锚杆注浆加固作用原理、锚杆注浆加固主要技术参数的确定进行分析。实践表明,巷道支护补强方案在实践中取得了很好的应用效果,降低了巷道的变形量,同时有效避免了巷道突水问题。

Aiming at the problem of roadway water inrush in coal mine, based on the overview of coal mine face and original roadway support, the design scheme of roadway support reinforcement after coal mine water inrush is put forward, and the principle of bolt grouting reinforcement and the determination of main technical parameters of bolt grouting reinforcement are analyzed. Practice shows that the reinforcement scheme of roadway support has achieved good application effect in practice, reduces the deformation of roadway, and effectively avoids the problem of water inrush in roadway.