三百子煤矿5煤上行开采法可行性研究  

Feasibility Study on Upward Mining Method of No.5 Coal Seam in Sanbaizi Coal Mine

作　　者：张光明 ZHANG Guang-ming(Sanbaizi Coal Industry Co.,Ltd.,Shanxi Coal Transport and Marketing Group,Xinzhou Shanxi,036700)

机构地区：[1]山西煤炭运销集团三百子煤业有限公司,山西忻州036700

出　　处：《煤炭科技》2019年第2期71-76,共6页Coal Science & Technology Magazine

摘　　要：以三百子煤矿2、5煤为研究对象,对其煤层特征以及顶底板的岩性进行分析,使用数值模拟的方法对采场覆岩破坏规律进行研究。通过理论计算、工程类比和数值模拟得出的5煤裂缝带高度分别为55. 4 m、84. 9 m和85 m。综合分析,从安全角度考虑,认为开采5煤产生的裂缝带最大高度为85 m左右,2煤经济可采区域与5煤层间距均大于90 m,预计开采5煤对2煤经济可采区域影响不大,2煤上行开采是可行的。Taking No. 2 and No. 5 coal in Sanbaizi Coal Mine as the research object, the characteristics of coal seam and the lithology of roof and floor were analyzed, and the law of overburden failure in stope was studied by numerical simulation. Through theoretical calculation, engineering analogy and numerical simulation, the height of fracture zones for No.5 Coal are 55.4 m, 84.9 m and 85 m, respectively. From the safety point of view, it was considered that the maximum height of the fracture zone produced by mining No.5 Coal is about 85 m, and the spacing between the economic mining area of No.2 Coal and No.5 Coal is more than 90 m. It was predicted that mining No.5 Coal Seam will not affect the economic mining area of No.2 Coal, and upward mining of No.2 Coal is feasible.

关 键 词：上行开采 三带判别法 工程类比法 数值模拟 

分 类 号：TD823[矿业工程—煤矿开采]