摘要
以新河煤矿3#煤层工程地质条件为研究背景,采用UDEC数值模拟揭示了断层倾角与落差对软岩急倾斜煤层顶板导水裂隙发育高度的影响,并运用双端堵水器进行了现场探测。结果表明:随断层倾角及落差的增大,软岩急倾斜煤层工作面导水裂隙带高度也随之增加,高度可达采高的20倍以上。
The paper takes the New River coal mine 3# coal seam engineering geological conditions as the research background, uses UDEC numerical simulation to reveal effect of fault dip and fall head on height of water-flowing fracture zone in soft rock steep coal seam roof, and uses double side water shutoff device for on-site detection. The results indicate that the height of water-flowing fracture zone increases with both dip and drop of fault, which reaches up to 20 times of mining height.
出处
《煤炭工程》
北大核心
2016年第8期74-76,80,共4页
Coal Engineering
关键词
软岩
导水裂隙带
急倾斜煤层
断层
数值模拟
soft rock
water-flowing fracture zone
steep coal seam
fault
numerical simulation
