综合物探技术在山西某整合矿井的应用
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摘要
山西某整合矿井地表条件复杂,目的层埋深变化大,部分区段煤层埋藏较浅,且有采空区存在,为解决该矿地质构造、采空区范围及其富水性以及影响煤层开采的其它水文地质问题,采用三维地震勘探与瞬变电磁法、直流电测深法相结合的综合物探技术。利用三维地震勘探解决目的层赋存形态及其地质构造问题;再利用瞬变电磁法进行平面控制,以使平面及深度解释误差达到勘探要求;应用直流电测深法及瞬变电磁进行勘探,在正反演解释的基础上对其资料综合分析、对比,并结合三维地震资料,确定地质构造的富水及导水性,取得了较好勘探效果。
A reintegrated coalmine in Shanxi has complicated surface condition,varied target buried depth,coal seam buried depth is rather shallow in part of the coalmine,and the existing of gob areas.To figure out geological structure,gob area extent and its water yield property,as well as other hydrogeological issues impacting coal mining,the integrated geophysical prospecting technology including 3D seismic prospecting and transient electromagnetic method,galvanic electric sounding has been used.Using 3D seismic prospecting figured out target hosting configuration and geological structure;then using transient electromagnetic method carried out planar control,making the planar and depth interpretation errors meet the prospecting requirement;using galvanic electric sounding and transient electromagnetic methods carried out data comprehensive analysis,contrast on the forward and inversion interpreted basis,combined with 3D seismic data,defined geological structures' water yield property and conductivity and obtained preferable prospecting effect.
A reintegrated coalmine in Shanxi has complicated surface condition,varied target buried depth,coal seam buried depth is rather shallow in part of the coalmine,and the existing of gob areas.To figure out geological structure,gob area extent and its water yield property,as well as other hydrogeological issues impacting coal mining,the integrated geophysical prospecting technology including 3D seismic prospecting and transient electromagnetic method,galvanic electric sounding has been used.Using 3D seismic prospecting figured out target hosting configuration and geological structure;then using transient electromagnetic method carried out planar control,making the planar and depth interpretation errors meet the prospecting requirement;using galvanic electric sounding and transient electromagnetic methods carried out data comprehensive analysis,contrast on the forward and inversion interpreted basis,combined with 3D seismic data,defined geological structures' water yield property and conductivity and obtained preferable prospecting effect.
引文
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[5]石君华.综合物探解决黄土区煤田复杂地质问题[J].中国煤田地质,2007,19(1).
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