破碎顶板炮采工作面支柱并对方式的改进

传统的支护方式使工作面支护密度强度下降,回收工作强度增加,制约了安全生产。新立煤矿改变并对方式,变并在采空区侧为并在煤壁侧。并对并在煤壁侧的主要优点是缩小了工作的控顶距、减少了顶板及支柱压力,增加了支护密度、增强了支柱的有效支撑等。

Improvement of the Prop Combination Type in the Broken Roof Blasting Face

The traditional method make work density strength descended,recovering the work strength increase,making to invite the safety produce.Xinli Coal Mine changes the combination type,change and at adopt empty area side in to and in the coal wall side.And to and in the lateral and main advantage in wall in coal is :contracted to work of control the crest was apart from, reduced roof pressure,prop pressure,increasing density,strengthenning a pillar of prop up effectively.