常村煤矿复杂条件下综放开采实践

Practices on fully mechanized longwall sub-level caving under complicated conditions in Changcun Coal Mine

常村煤矿21072综采放顶煤工作面地质条件复杂,通过合理确定工作面的布置,克服了影响工作面生产的不利因素,实测分析了工作面的矿压显现规律,解决了工作面回采巷道的修护、过原工作面老巷、过老切眼、顶板局部流沙层、工作面瓦斯防治、煤层自然发火等一系列的技术难题,保证了工作面的安全生产。

According to the complicated features of the geological conditions in No.21072 fully mechanized longwall sub-level caving face in Changcun Mine,the paper has rationally set up the layout of the coal mining face.The paper analyzed the pressure behavior law of the coal mining face. The repair and maintenance of the mining gateway for the mining face,passing through previous used goaf,passing through used open cut,running sand from some roof,gas prevention and control,seam spontaneous combustion and series tec...