摘要
The formation of karstic collapse columns entails three essential prerequisites: tectonics and regional structure, soluble rock, and groundwater hydrodynamics. Firstly the No.2 of Liuqiao coal mine is targeted and the factors are extracted such as soluble rock, tectonics and regional structure, and limestone strong water-rich areas from the available data. Then by using the GIS overlay analysis technology, four areas zone Ⅰ, zone Ⅱ, zone Ⅲ and zone Ⅳ are delineated, which may develop karstic collapse columns according to the slope analysis result of seam floor map and the characteristics of the No.2 of Liuqiao coal mine related areas. Finally, the conclusion is that karstic collapse column in the Ⅱ617 airway is located in zone Ⅱ by comparison with the actual data.