摘要
煤层顶板的稳定性是影响煤层回采工作安全最重要因素之一。文章根据大量钻孔和矿井生产资料,研究了木城涧矿侏罗系煤田主采2、10号煤层顶板工程地质特征,并采用综合指数法对煤层顶板进行了综合评价。结果表明:2、10煤顶板岩性均以粉砂岩、细砂岩为主,局部见泥岩;裂隙都较为发育,顶板破碎;顶板类型以稳定和中等稳定为主。该评价结果有助于该矿加强不同区域煤层顶板的管理及安全生产工作。
The stability of seam roof is one of the most important case that influences the safety of coal extraction. Based on the drilling and mining materials, studies on the roof geological condition of No2, 10 coalbed in MuChengJian Mine of Beijing were carried out, then by the evaluation of seam roof through comprehensive index method, it can be shown that the mian lithology of seam roof are siltstone and fine sandstone with many continuous structures, The main stability type of seam roof are stability and middle stability. The result are helpful in enhancing the management of different coal roof and safty production.
出处
《煤炭工程》
北大核心
2007年第10期80-83,共4页
Coal Engineering
基金
国家重点基础研究发展计划(973)项目(2006cb202209)
北京市教委科技发展计划面上项目(KM200500003004)
关键词
侏罗系煤田
顶板稳定性
综合指数法
Jurassic System Coalfield
stability of seam roof
comprehensive index method
