摘要
针对孟加拉国巴拉普库利亚煤矿(简称孟巴矿)地表松散富含水层水体下安全开采问题,通过分析该矿1112工作面具体地质条件与开采条件,在应用经验公式预测合理导水裂隙带发育高度的基础上,选用先进的井下仰孔注水测漏法对Ⅵ煤首分层综采采场导水裂隙带发育高度进行了现场探测,进行了1个对比孔与3个观测孔的注水漏失量观测,并分析了对比孔和观测孔注水漏失量随钻孔深度变化曲线,获得了该工作面导水裂隙带发育高度。
Aiming at the safety mining problems under water bodies of water conducted zone in Barapukuria colliery of Bangladesh, up- ward slant hole observing method was used to monitor the height of water conducted zone in first stope of VI coal which adopted fully- mechanized coal mining technology on the basis of predicting the breakage rule by analyzing the geology and mining condition of 1112 working face in coal mine. The injection water leakage of a contrast hole and three observation holes were observed. By analyzing injec- tion water leakage and the hole depth correlation curve, developing height of water flowing fractured zone was obtained.
出处
《中州煤炭》
2013年第7期4-7,11,共5页
Zhongzhou Coal
基金
陕西省教育厅重点实验室科学研究计划项目(2010JS020)
陕西省科技计划项目(2011JY005)
关键词
分层开采
导水裂隙带
发育高度
井下仰孔
注水漏失量
slice mining
water flowing fractured zone
developing height
upward slant hole
injection water leakage quantity
