煤矿孤岛工作面回采巷道围岩控制技术研究

Research on Surrounding Rock Control Technology of Coal Winning Roadway in Isolated Working Face of Coal Mine

孤岛工作面因其四周均为采空区或其两侧所成平巷均为采空区,支承压力明显,开采难度大。孤岛工作面回采时,必须考虑地质条件和地质构造影响,采用主动超前支护等措施,保证回采的安全可靠。

The surrounding of isolated working face is goaf,or its surrounding goaf or both sides of the roadway formed by goaf, abutment pressure is obvious, and the mining is difficult. In order to ensure the safety and reliability of mining, geological conditions and geological structure must be taken into account and active advance supporting should be adopted.