Identification method of multi-water source of mine water inrush

According to the data of known water sources and water exit's typical chemical ions'constituent content,etc,used the operations research method,the mathematical model was built to discriminate the mine effluent points' multi-water sources,in which utilized the general reduced gradient (GRG ) method to solve the model. In the process of solving it,the slack variable was introduced,which had an important physical meaning. If the slack variable of the solution has a larger value,it means there's an unknown water source. The model was verified by taking advantage of the documents and actual mining information,and the result shows this method can not only be used suitably in the multi-water sources'effluent cases to discriminate whether the known water-sources is conducted with the water-exit and to calculate each water source's proportion in the effluent waters,but also can be used to reveal the existence of an unknown water source.