采空区瓦斯地面抽采钻井稳定性因素分析  

Analysis on Stability Factors of Surface Boreholes for Gob Gas Drainage and Extraction

作　　者：李日富[1] 梁运培[1] 欧聪[1] 牟景珊[1] 

机构地区：[1]煤炭科学研究总院重庆研究院,重庆400037

出　　处：《矿业安全与环保》2008年第3期11-13,17,共4页Mining Safety & Environmental Protection

基　　金：国家重点基础研究发展计划(973计划)课题(2005CB221503);国家自然科学基金重点项目(50534080);国家"十一五"科技攻关项目(2006BAK03B03)

摘　　要：以淮南矿区张北矿地面钻井抽采采空区瓦斯试验为背景,通过对比分析淮南矿区各试验钻井抽采数据,运用数值模拟的手段,分析讨论了采空区上覆岩层在采动影响下的时空运移、破坏规律,在此基础上对影响地面抽采钻井稳定性的主要参数进行了分析,并总结出提高地面抽采钻井稳定性的相关建议,对采空区瓦斯抽采技术的研究和推广应用具有一定的指导意义。In this paper,the authors made analysis on the space-time movement and fracturing regularity of overlying strata in gob area under the mining influence by taking the surface boreholes for gas drainage and extraction from gob area in Zhangbei Coal Mine of Huainan Mining Group as background,comparing and analysing the gas drainage and extraction data of each experimental borehole and adopting numerical simulation.On this basis,the authors conducted analysis of the main parameters affecting the stability of surface gas drainage and extraction boreholes and summed up the relevant proposals of improving the stability of surface gas drainage and extraction boreholes.This paper is of instructive significance for the research,promotion and application of gas drainage and extraction technology from goaf.

关 键 词：地面钻井 采空区 瓦斯抽采 钻井稳定性 采场覆岩 

分 类 号：TD712[矿业工程—矿井通风与安全]