摘要
通过分析矿井火灾时期的风流特点,提出了矿井火灾时期的风路失效模式,指出矿井火灾时期的通风系统可靠度是个动态变化过程,随着时间的推移,整个通风系统的可靠度会逐渐下降。提出了适于计算大型通风系统火灾时期可靠度的"基于截断误差理论和网络简化技术的不交化最小路集算法"。在此基础上,对矿井火灾时期通风系统的动态可靠度进行了数值模拟。
By analyzing airflow characters during mine fire, the failure mode of air course during mine fire is put forward, and it is pointed out that the reliability of a ventilation system during mine fire is a dynamic process, i.e. , the reliability of a ventilation system will decrease with the lapse of time. A disjoint minimal path set algorithm, based on network simplification technology and truncation error theory., for computing the reliabilities of large scale ventilation networks during mine fire is brought forward. A numerical simulation of the dynamic reliability of a ventilation system during mine fire is done on the above basis.
出处
《自然灾害学报》
CSCD
北大核心
2008年第2期99-102,共4页
Journal of Natural Disasters
基金
国家自然科学基金资助项目(50704019)
辽宁省自然科学基金资助项目(20062204)
关键词
矿井火灾
通风系统
可靠性
失效
mine fire
ventilation system
reliability
failure
