The water source identification of water-conducting collapse column in Wutongzhuang coalmine

As a special kind of geologic body in coal field,Karst collapse column affected not only on the roadway arrangement,roadway stability and the quantity of coal mining but also on water inrush of mining face possibly,which seriously threatens the life security of the miners.According to the hydrogeological condition and hydrochemical characteristics of Wutongzhuang coalmine,the cluster analysis model and the fuzzy discriminant model were established for water-bursting source determination.The results show that water quality and water temperature can be regarded as criterion for identification of water-conducting collapse column in Wutongzhuang coalmine and the collapse column is predicted successfully.It is provided reference for other coalmines which hydrogeological conditions were similar to Wutongzhuang coalmine.