摘要
矿井开采煤层较厚,工作面宽大且受顶底板水害威胁,采用瞬变电磁、直流电测深、音频电透视等对工作面进行物探,采用常规钻与定向钻相结的方式对工作面顶板含水岩组、底板砂岩裂隙含水层及奥陶系岩溶裂隙含水组赋水性及隔水层有效性、隐伏构造等进行无盲区探查、验证、治理,并对工作面防治水安全性进行评价,作为带压开采依据。
The coal seam is thick, the working face is wide and threatened by the water disaster of roof and floor. Transient electromagnetic, direct current sounding and audio frequency electric perspective are used to carry out geophysical exploration on the working face. The water-bearing rock formation of roof, sandstone fissure aquifer of bottom plate and karst fissure aquifer of Ordovician, the effectiveness of water-isolating layer and the hidden structure are explored, verified and treated by conventional drilling and directional drilling.The paper also evaluates the safety of water prevention and control on the working face as the basis for mining with pressure.
作者
杨程
Yang Cheng(Longwanggou Coal Mine,Ordos Guoyuan Mining Development Co.,Ltd.,Inner Mongolia Zhunger Banner 017100)
出处
《山东煤炭科技》
2020年第12期177-179,183,188,共5页
Shandong Coal Science and Technology
关键词
巨厚煤层
宽大工作面
防治水工程设计
水害探查、治理与评价
extremely thick coal seam
wide coal face
water control engineering design
exploration
management and evaluation of water hazards
