松软煤层复合顶板联合支护 沿空留巷探讨

Reserving space for lane along the tunnel under the condition of soft coal bed,compound roof supports and protections

在松软煤层复合顶板中沿空留巷仍是煤矿生产中的技术难点之一。如果能够在松软煤层复合顶板中留巷成功,能够很好地缓解采煤工作面接续紧张的局面,并且能够多回收煤炭资源,沿空留巷是缩短采煤工作面接续时间、节省人力、物力提高经济效益的有效途径之一。

It is regarded as one of the difficult technical issues that how to deal with reserving space for lane along the tunnel under the condition of soft coal bed , compound roof supports and protections . If the problem had been resolved properly we would have resolved the face of a mine crowded . Reserving space for lane along the tunnel is one of the effective means to shorten the excavating time , to save the labour and economic benefits .