新义煤矿覆岩离层注浆充填开采技术研究

Research of grouting and filling mining of overburden separation in Xinyi Mine

针对新义煤矿地表构筑物及道路、河流压煤多,资源浪费严重,同时开采造成地表塌陷、破坏生态环境等问题,提出覆岩离层注浆充填减沉开采技术,并对该技术原理及施工过程中的关键技术环节进行分析研究,现场实践表明,该技术能够有效解决开采采动影响造成的地表下沉问题,同时释放原煤开采面积,具有较大的经济效益和社会效益。

In view of the problems of many surface structures,roads and rivers pressing coal,serious waste of resources,surface collapse and destruction of ecological environment caused by mining in Xinyi Mine,the overburden separation grouting filling subsidence reduction mining technology was put forward,the principle of this technology and the key technical links in the construction process was analyzed and studied.Field engineering practice was carried out and application results showed that this technology effectively solved the problem of surface subsidence caused by mining and mining,and released the mining area of raw coal,which had great economic and social benefits.