Dynamic planning of mine water avoidance path based on strategy.

In order to solve the problems that the existing static path planning method cannot meet the dynamic change demand of underground coal mine water inrush disaster, and the operation efficiency of the traditional shortest path algorithm needs to be improved, a strategy-based dynamic path planning method and system for mine flood disaster avoidance was proposed. The method considers the influence of water flow on personnel escape. Firstly, the influence degree of roadway environmental factors on disaster avoidance path is quantified as the equivalent length of roadway distance. Then, based on the principle of the shortest time, the escape speed was introduced to calculate the escape time through each roadway, and a mathematical model was constructed with the escape time as the adjacency matrix. Combined with safety monitoring and hydrological monitoring system linkage strategy, according to the real-time monitoring of downhole environment situation, the roadway node properties were dynamically changed for mine flood disaster avoidance path based on 3D GIS figure was developed and a three-dimensional dynamic programming system. Finally, combined with the test analysis of mine examples, the effectiveness of the algorithm design is verified, which can guide the safety evacuation of underground personnel and improve the ability of mine safety control. [ABSTRACT FROM AUTHOR]