Coalmine surface water prevention and drainage in loess areaChinese Full Text
ZHU Ge;WU Xiong;LI Ping-hu;QI Rui-jun;MU Wen-ping;FU Rui-zhi;Beijing Key Laboratory of Water Resources and Environment Engineering,China University of Geosciences(Beijing);Tianjin Institute of Geotechnical Investigation ＆ Surveying;Inner Mongolia Second Hydrogeology Engineering Geological Prospecting Institute;
Abstract: At present,researching on mine water disaster and prevention most focused on groundwater cause,while studying on surface water causing disaster prevention was deficiency.The paper focused on the disaster prevention which caused by surface water in loess area and gave the controlling measures to solve the problem caused by surface water disaster.The authors used probability integral method and FLAC3 Dto make numerical modeling on forecasting surface movement with average influencing radius of 4106-4109 coal faces of Anjialing Mine and evaluated the potential risk of the surface water leakage.The results show that,the height of the wat er flowing fractured zone is 171.8 m which is calculated by numerical modeling prediction and empirical formula; the water accumulated area and the water flowing fractured zone will endanger the coal mining; intercepting the water coming out of the coal faces,filling the sag with nearby soil,and draining off the water in the mines on time can solve the surface water disaster.
Keywords：
loess area; surface water disaster; deformation prediction; water flowing fractured zone; prevention and controlling measures;
- DOI：
10.13225/j.cnki.jccs.2014.0124
- Series：
- Subject：
- Classification Code：
TD745
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