摘要
通过对麻地沟矿开采煤层采煤方法的探讨,从综放开采顶煤冒放性评价研究现状、13号煤层顶煤冒放性分类、13号煤层综放可行性类比综合分析等三个方面进行了综采放顶煤冒放性评价,得出结论:本矿井13号煤采用综采分层放顶煤开采工艺方法。
Coal mining method was discussed and then was determined to be top coal caving for No.3 coal in Madigou mine. Meeting coal point was 14.40 m in the first mining face. 0.7 m rock parting in the middle of J1 meeting coal point was used to separate coal seams as a marked seam. The thickness of the upper seam is 9.0m and the lower mining face is 3.5m, top coal seam 5.4m. In addition, the caving height 5.5m, and the paper concluded that the caving ratio 1：1.57. mining height of the first
出处
《山西煤炭》
2014年第3期57-59,共3页
Shanxi Coal
关键词
采煤方法
开采煤层
冒放性评价
coal mining methods
working seams
evaluation of top coal cavability
top coal cavingtechnology
