THE GROWTH REGULARITY AND DETECTIVE TECHNIQUE OF COLLAPSE COLUMN

The paper summarizes the growth regularity and the related factors of collapse column in Duongpang Coal Mine,introduces the applicability of roadway explorations,drillings and geophysical prospecting methods,expounds how to select an economic and quick exploration method according to the characteristics of each method and difference geological conditions for detecting the place,shape,size and water-bearing property of collapse column.