【作者】 马洪亮；

【导师】 周心权；

【作者基本信息】 中国矿业大学（北京） ， 安全技术及工程， 2008， 博士

【摘要】 分析矿井正常生产和灾变时期通风系统动态变化的过程是了解和提高矿井通风系统抗灾能力的重要技术支撑,基于以上认识,本文分析了循环风和串联风等不合理通风系统降低矿井通风系统抗灾能力的作用规律,研究了矿井火灾动态模拟技术对分析和提高通风系统抗灾能力的作用机理。为了提高网络模拟结果的正确性,对矿井火灾风流网络模拟软件进行修正和完善;基于实际火灾中火源邻近区域出现分层现象,论文进行了一、二维耦合模拟技术可行性分析,验证了区域模拟技术的在矿井巷道火灾模拟中的适用性,证明了多单元区域模拟方法可以将区域模型很好的应用到矿井火灾中。建立区网耦合模拟的数学模型,开发了相应的实现程序;提出了区网完全耦合模拟理论,并对完全耦合模拟程序的实现进行了探讨和设计。通过实际矿井火灾的数据和模拟计算结果的比较分析,证明了区网耦合模拟技术的优越性,可以为矿井火灾制定可行的救灾决策及进行矿井通风系统抗灾能力分析服务。更多还原

【Abstract】 To enhance the mine ventilation system’s capacity and then prevent disaster, as well as to provide effective decision-making during mine disaster, capacity to prevent disaster in the normal production and disaster period are discussed in the dissertation.The unreasonable structure, Circulated ventilation system and series ventilation structure are researched and analyzed, it will reduce the capacity to prevent disaster of the ventilation system during the disaster period. Fire dynamic simulation technology is one of the most important method for analyzing of mine ventilation system during disaster period, the traditional one-dimensional dynamic simulation technology is the only viable way for mine ventilation system as a whole simulated, but the practice proved that the delamination phenomena is showed near the fire source after the fire occurred, simulation results of network has errors. This paper modify the software of fire simulation network to enhance the accuracy of simulation results; put up the technical feasibility analysis of coupling technology of two-dimensional and one-dimensional simulation, zone modeling simulation can bu used in the mine fire simulation by the multi-unit regional simulation approach. Bring forward the theory of coupling technology of two-dimensional and one-dimensional simulation, mathematical simulation model for the boundary conditions is established, and then discuss and design the program of fully coupled simulation.Compare the simulation results and the practice data, validate the fully coupled simulation is more useful for the analysis of the mine ventilation system’s capacity to prevent disaster and service for the salvage during the disaster period.更多还原