海孜煤矿松散含水层下缩小安全煤岩柱的安全开采机理  

Mechanism of Safety Mining by Minimizing Safety Pillar under Loosen Aquifer in Haizi Mine

作　　者：许延春[1] 丁鑫品[1] 郝亦纯[1] 洪成钰[1] 张缓缓[1] 

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《矿山测量》2010年第5期64-67,共4页Mine Surveying

摘　　要：以海孜煤矿实际水文地质条件和采矿条件为基础,结合周围条件类似矿井松散含水层下留设防砂安全煤岩柱开采的成功经验,通过对覆岩破坏观测结果和矿压显现规律进行分析总结,讨论了该矿缩小煤岩柱、提高开采上限的安全开采机理。On the basis of practical hydrogeological conditions and mining conditions in Haizi Mine,the author considers the successful experience of mining by remaining sand-proof safety pillar under loosen aquifer in nearby mines with similar conditions,analyzes and sums up observed results of overburden failure and the law of strata behavior,and discusses the mechanism of safety mining by decreasing pillar and increasing upper limit of mining in this mine.

关 键 词：含水层下采煤 开采上限 防水煤柱 防砂煤柱 

分 类 号：TD823.83[矿业工程—煤矿开采]