基于权值时变模型的矿井突水最优逃生路径的动态选择  

Dynamic Selection of Optimal Escape Path of Mine Water Inrush Based on Weight Time-varying Model

作　　者：于丹 颜伟[1,2] 李劭昱 YU Dan;YAN Wei;LI Shao-yu(College ofEnergy and Mining Engineering, Shandong University of Science and Technology, Qingdao 266590, China;State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China)

机构地区：[1]山东科技大学能源与矿业工程学院,青岛266590 [2]山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地,青岛266590

出　　处：《科学技术与工程》2022年第12期4762-4771,共10页Science Technology and Engineering

基　　金：国家自然科学基金(51509149,51379119);国家重点研发计划(2018YFC0604702);山东省重点研发计划(2018GSF120009)。

摘　　要：为了减少矿井突水发生时造成的矿工伤亡,为井下矿工动态选择出合理的逃生路径。综合考虑随时间变化的水位高度和水的流速对矿工逃生路径选择的影响,将其量化为对人体稳定性的影响,并将所研究的时间进行分段,根据不同时段下巷道内平均水流速与临界流速之比求得动态危险系数,并实时加权到邻接矩阵上,建立以巷道初始当量长度与危险性程度为衡量最优路径的权值时变数学模型,运用改进的Dijkstra算法进行求解,并结合W煤矿矿井进行实例分析。结果表明:优化后的模型更能反映突水时巷道内的实际情景,同时,改进的Dijkstra算法能够有效应用于突水时期最优逃生路径的动态选择中,使选择的逃生路径更加安全可靠。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.

关 键 词：矿井突水 危险系数 时变网络 改进的Dijkstra算法 最优逃生路径 

分 类 号：TD771[矿业工程—矿井通风与安全]