茂华万通源煤矿辅助巷道煤柱留设技术研究  

Study on Coal Pillar Retaining Scheme of Auxiliary Roadway in MaohuaWantongyuan Coal Mine

作　　者：李锦波 赵丽娟[1] 毛晨东 高占彬 LI Jin-bo;ZHAO Li-juan;MAO Chen-dong;GAO Zhan-bin(School of Coal Engineering,Shanxi Datong University,Datong Shanxi,037003)

机构地区：[1]山西大同大学煤炭工程学院,山西大同037003

出　　处：《山西大同大学学报（自然科学版）》2021年第3期79-81,86,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：2019年山西省高等学校科技创新项目[2019L0754];2019年大同市科技计划项目[2019122]。

摘　　要：针对山西茂华万通源煤矿401采区辅助回风巷与40103工作面运输巷之间煤柱、辅助回风巷与机轨合一巷之间煤柱尺寸留设尺寸不合理问题,通过理论分析,用综合极限平衡计算法和载荷估算法确定合理煤柱的宽度,且运用FLACK3D证明了计算煤柱尺寸是正确的。In view of the unreasonable size of coal pillar between auxiliary return air roadway and 40103 working face transpor-tation roadway,between auxiliary return air roadway and machine rail combined roadway in 401 mining area of Maohua Wantongyu-an Coal Mine,through theoretical analysis,the reasonable width of coal pillar is determined by comprehensive limit equilibrium cal-culation method and load estimation method.With the help of numerical software FLACK 3D,the rationality of the size of coal pil-lar left is verified.

关 键 词：载荷估算法 极限平衡计算法 数值模拟 

分 类 号：TD723[矿业工程—矿井通风与安全]