综采工作面托伪顶方法分析

Method Analysis of Fully Mechanized Face with False Top Mining

伪顶是在煤层与直接顶之间存在的极易垮落的软弱岩层,在井下采煤工作面回采时,会常常遇到。由于其稳定性差、维护困难,经常造成工作面顶板冒落,给顶板管理带来了很大困难。开滦钱家营煤矿在生产实践中,总结了一套伪顶加固和超前支护相结合的方法,解决了伪板厚的问题,创造了好的经济效益和社会效益。

The false top is the existence pole exchanges weak caving rock stratum between the coal seam and direct top. In the coal mining, it may often be happened. Defend is difficult since its stability is bad. It often brings face to roof fall. The roof management is very difficult. Kailuan Qianjiaying Coal Mine summarizes a suit of conjoint method of roof solidified and fore support, that settles problem of thick false top and creates finer economy benefit and society benefit in the process of production and practice.