摘要
官庄河矿区3煤层采空区存有大量积水,采用钻孔冲洗液漏失量和导高观测仪注水漏失量观测法对11煤层开采形成的覆岩导水裂隙带发育高度进行了实测,实测结果表明导水裂隙带发育高度为44.1 m,是采高的16.3倍,并通过数值模拟计算方法对该结果进行了对比和验证。11煤层开采形成的导水裂隙带未发育至3煤层采空区,可进行保水开采。
There was a lot of water in the goat＂ of 3rd coal seam in Guanzhuanghe mining area, for this issue, we measured the height of the fissure zone with methods of drilling lavage fluid leakage and fissure zone height viewer. The measure result showed that the height of the fissure zone was 44.1 m, and it was 16.3 times of the height of llth seam. It also tested this result through numerical simulation method. The fissure zone could not get the goal of 3rd coal seam, so the 11 th coal seam can be mined without drain the wa- ter in 3rd coal seam goaf.
出处
《煤矿安全》
CAS
北大核心
2014年第12期54-57,共4页
Safety in Coal Mines
基金
国家自然科学基金面上资助项目(51278488)
北京市博士后工作经费资助项目
关键词
上覆岩层
导水裂隙带
钻孔冲洗液漏失量
导高观测仪
数值分析
overlying strata
water flowing fractured zone
drilling lavage fluid leakage
fissure zone height viewer
numerical anlysis
