With the increase of social demand for coal resources,mining depth of many coal mines are increas-ing,it will bring a series of problems,such as,appear walking in the ground,underground water disasters,etc.,a-mong them,the coal mine water disasters poses a great threat to the mine safety production,in the event of accident, will turn into a major disasters.Therefore,to realize the safety production of mine,will do a good job in prevention and control of coal mine water,reduce the occurrence of safety accidents.Underground transient electromagnetic de-tection technology is a technology used to prevent and control coal mine water hazards.The characteristics of this tech-nology are its small size effect,good directivity,detection accuracy,can effectively detect the abnormal body of rich water in mine space,for coal mines provide the corresponding geological technical support.This paper analyzes the applications of transient electromagnetic detection technology in prevention and control underground water of coal mine.%随着社会对煤炭资源需求的增大，许多煤矿的开采深度不断加大，这样就会带来一系列的问题，如出现地面走动、地下水害等。其中，煤矿水害对矿井安全生产构成了极大的威胁，一旦发生事故，就会演变成重大的灾害。因此，要实现矿井的安全生产，就要做好煤矿防治水工作，减少安全事故的发生率。井下瞬变电磁探测技术就是用来防治煤矿水害的一种技术，这种技术的特点在于其体积效应小、方向性好、探测准确，可以有效探测矿井空间中各种富水异常体，为煤矿提供相应的地质技术保障。本文分析了井下瞬变电磁探测技术在煤矿防治水中的应用。
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