Abstract:

The mechanism of mine water chemical evolution is very complicated , influenced by many factors such as aquifer rock, geological structure, runoff area and the influence of mining activities, which make the mine water quality in the same aquifer change significantly, so the mine water-filling resource determination becomes more difficult. In order to improve the accuracy of mine water-filling resource determination, with the powerful spatial analysis function of MapObjects and GRNN nonlinear characteristics, taking xinglongzhuang coal mine as an example, the dynamic construction method of Standard water sample database for mine water-filling resource determination was put forward, the MapObjects and GRNN coupling model of water-filling resource determination was established, and water-filling resource determination was realized. The results show that the spatial analysis function of MapObjects can dynamically build Standard water sample database whose geological environment is similar to the determined water sample. and GRNN has good prediction and generalization ability, can realize to determine water-filling resource of mine based on the Standard water sample database, MapObjects and GRNN coupling technology can improve the accuracy of mine water-filling resource determination.

Key words: MapObjects, GRNN, water source determination, coupling technique