深井软岩掘巷桁架锚索梁支护技术研究

Study on Support Technology of Truss Anchor Cable Beam in Deep Soft Rock Roadway Excavation

针对煤矿深井软岩巷道支护难题,提出了“桁架锚索梁”支护方式,运用FLAC2D模拟软件对深井软岩掘巷桁架锚索梁支护方式技术进行研究,结合该支护方式下井下巷道周边煤岩体位移量实测结果,得出桁架锚索梁支护方式可将巷道周边煤岩体浅部的高应力引入深部区域,从而有效控制巷道周边煤岩体变形,保障矿井安全高效生产。

Aiming at the difficult problem of soft rock roadway support in deep mine,the support mode of"truss anchor beam"is proposed,and the support mode technology of truss anchor beam in deep soft rock roadway driving is studied by FLAC2D simulation software.Combined with the measured displacement of coal and rock around underground roadway under this support mode,it is concluded that the truss anchor beam support mode can introduce the high stress of shallow coal and rock around roadway into deep area,thus effectively controlling the deformation of coal and rock around roadway and ensuring safe and efficient production of mine.