近距离煤层回采巷道合理错距研究
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摘要
本文以某煤矿开采工程的近距离煤层为例,分析了采空区下方煤层应力分布与巷道不同内错距离下,围岩屈服的破坏程度,综合结合各种因素确定了下煤层回采巷道内错布置的合理位置,提高了煤层的开采效率,以期为此后类似煤层的开采工作提供更多的借鉴依据。
In this paper, taking the short-distance coal seam of a coal mining project as an example, the failure degree of surrounding rock yielding under the stress distribution of the coal seam under the goaf and the different internal staggered distances of the roadway is analyzed, and the reasonable location of the internal staggered arrangement of the lower coal seam roadway is determined by combining various factors, so as to improve the mining efficiency of the coal seam for the later type. More references are provided for similar coal seam mining.
In this paper, taking the short-distance coal seam of a coal mining project as an example, the failure degree of surrounding rock yielding under the stress distribution of the coal seam under the goaf and the different internal staggered distances of the roadway is analyzed, and the reasonable location of the internal staggered arrangement of the lower coal seam roadway is determined by combining various factors, so as to improve the mining efficiency of the coal seam for the later type. More references are provided for similar coal seam mining.
引文
[1]张春雷,张勇.近距离煤层同时开采巷道布置优化研究[J].煤炭科学技术.2014(10)
[2]索永录,商铁林,郑勇,等.极近距离煤层群下层煤工作面巷道合理布置位置数值模拟[J].煤炭学报.2013(S2)
[3]潘国平,贾帅.近距离煤层联合开采下层煤回采巷道合理布置[J].煤炭科学技术.2013(S2)
[2]索永录,商铁林,郑勇,等.极近距离煤层群下层煤工作面巷道合理布置位置数值模拟[J].煤炭学报.2013(S2)
[3]潘国平,贾帅.近距离煤层联合开采下层煤回采巷道合理布置[J].煤炭科学技术.2013(S2)