安家岭二号井B402工作面终采线位置合理确定  

Determination on rational location of mining terminal line for B402 coal mining face in Anjialing No.2 Deep Mine

作　　者：刘保宽 吴吉南[1] 朱建明[2] 冯锦艳[2] 徐金海[3] 吴剑平[2] 

机构地区：[1]平朔煤炭工业公司安家岭二号井工矿,山西朔州036006 [2]北京航空航天大学岩土工程研究所,北京100083 [3]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《煤炭科学技术》2008年第12期12-15,18,共5页Coal Science and Technology

摘　　要：基于露井联合开采下的安家岭二号井B402工作面的回采推进,为合理确定该工作面终采线位置,采用数值模拟的方法分析了工作面回采过程中的煤柱应力,巷道的破坏及变形情况。提出了B402工作面终采线应采用80 m,否定了原先按一般开采条件确定的50 m终采线位置。实践证明,上述确定的B402工作面终采线位置确保了4煤3条大巷的稳定性,实现了4煤的安全开采。According to the advancing processing of the B402 coal mining face in Anjialing No.2 Mine under the surface and underground combined mining,in order to rationally set the terminal mining location of the coal mining face,a numerical simulation method was applied to analyze the coal pillar strain,the gateway failure and deformation during the coal mining face advancing forward.The paper proposed that the terminal mining line of the B402 coal mining face should be 80 m to the terminal line instead of 50 m to t...

关 键 词：露井联合开采 终采线 矿压显现 巷道稳定性 数值模拟 

分 类 号：TD322[矿业工程—矿井建设]