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- Title
基于权值时变模型的矿井突水最优逃生 路径的动态选择.
- Authors
于丹; 颜伟; 李劭昱
- Abstract
In order to reduce the casualties of miners caused by mine water inrush, a reasonable escape path was dynamically selected for the underground miners. Considering the influence of time-varying water level and water flow rate on the selection of miners’ escape path, it was quantified as the influence on human stability, and the time studied was segmented. According to the ratio of the average water flow rate to the critical flow rate in the roadway in different periods, the dynamic dangerous coefficient was obtained, and it was weighted to the adjacency matrix in real time. The weight time-varying mathematical model was established to measure the optimal path with the initial equivalent length of the roadway and the degree of risk. The improved-Dijkstra algorithm was used to solve the model, and an example analysis was carried out in W coal mine. The results show that the optimized model can better reflect the actual situation in the roadway during water inrush. At the same time, the improved-Dijkstra algorithm can be effectively used in the dynamic selection of the optimal escape path during water inrush period, so that the selected escape path is more safe and reliable.
- Publication
Science Technology & Engineering, 2022, Vol 22, Issue 12, p4762
- ISSN
1671-1815
- Publication type
Article