Water Inrush Source of Xinzhuangzi Coal Mine Identified with Gray Related Degree Method

摘要

Identifying water inrush source rapidly and effectively can prevent water damage of mine. Based on gray system theory, several water quality indexes of each aquifer are selected to set up discrimination model of water source of mine inrush which can adapt to different types of water quality by applying analytical method of gray related degree. This model was realized by MATLAB software, and Xinzhuangzi coal mine in Huainan was taken for example. Compared with the model of fuzzy comprehensive evaluation, the result indicates that analytical method of gray related degree can identify water inrush source effectively and its accuracy rate in discrimination is higher than the model of fuzzy comprehensive evaluation. The model advantage of gray related degree is that it does not request so much about the number size of samples, as well as the distributed law. The result of analysis is in accord with the result of general qualitative analysis, and it's fit for the rapid discrimination of water inrush source. It has high applied value in identifying water inrush source.