Decision-making system for mine water inflow control and treatment in the North China coal bearing basin

Main characteristics of the mine-hydrogeological conceptual model in the North China coal bearing basin is a stereo water-filled geological structure formed by various inner- and outer-boundaries which hydraulically link up multi-layered aquifers. Finite-elemental numerical and optimal management models in “quasi-three-dimensions” have been used to describe the conceptual model in stereo scale, and to provide quantitative base for working out the decision-making system of mine water preventing and curing. The decision-making system can be further divided into two sub-systems. One is the preventing sub-system, with which some preventing engineering measures can be established. Another is the curing sub-system, with which concrete curing decision-making schemes can be scientifically worked out, based on analyses of mine-hydrogeological conditions and application of the numerical and optimal models.