关岭山煤矿15201工作面控制采空塌陷的可行性研究

Feasibility Study on Controlling Goaf Collapse in the 15201 Working Face of Guanlingshan Coal Mine

以关岭山煤矿15201工作面“三下”压煤资源开采为案例,通过钻探、岩样测试、理论计算和数值模拟方法论证覆岩离层注浆技术对控制地表沉降的可行性。钻探结果表明,15201工作面上覆岩层的地层和水文地质条件有利于开展离层注浆,数值模拟结果显示离层注浆技术可有效减轻地表下沉并保护地面建筑物。

Taking the mining of "three under" pressed coal resources in the 15201 working face of Guanlingshan Coal Mine as an example,the feasibility of overburden separated layer grouting technology in controlling surface subsidence is demonstrated by drilling,rock sample testing,theoretical calculation and numerical simulation.The drilling results show that the stratigraphic and hydrogeological conditions of the overlying strata in the 15201 working face are conducive to separate layer grouting,and the numerical simulation results show that separated layer grouting technology can effectively reduce surface subsidence and protect ground buildings.