Development rules and controlling factors of collapse column in third mining area sima coal mine

Through researching the development location of collapse column in third mining area Sima coal mine, we summarize the development and distribution rules of collapse column, and further analyze how did the fault, the deep and water yield condition affect the development scale of collapse column and which is the main controlling factor. The conclusions are as follows: 1 The collapse columns in mining areas are distributed in groups and ribbon-shaped. 2 The development scale of collapse column is influenced by many factors among which there must be one main controlling factor.3 Through analysis the causes are obtained of the differences between the collapse column development scales. © 2014 ejge.