Analysis on Water Sources of Watery Zone in No.II6117 Coal Mining Face in Liuqiao No.2 Mine

In order to ascertain the water source type in the watery zone of No.II 6117 coal mining face and to guide the implementation of the water prevention and control measures,based on the historical water chemical information of the mine,a trilinear diagram of the zwitterion content was prepared.Based on the circumstances,the mineralization,hardness,ion content variation features of each aquifer were analyzed and the water quality model was established.In comparison with the water quality model and the water sample in the watery zone of the coal mining face,the water type was determined.A fuzzy clustering analysis method was applied to establish an evaluation set to further determine the main and secondary relationships of the water sources type.The judgment results showed that the water in the watery zone of No.II 6117 coal mining face of Liuqiao No.2 Mine would include sandstone water,limestone water in Taiyuan formation and Ordovician limestone water of six coal series.Among those,the sandstone water and limestone water contents in Taiyuan formation of the six coal series would be mainly and Ordovician limestone water content would be secondary.