灾害学2025，Vol.40Issue(1)：129-134,6.DOI:10.3969/j.issn.1000-811X.2025.01.020
地下综合管廊天然气泄漏扩散及爆炸研究综述
Research on Natural Gas Leakage,Diffusion and Explosion in Gas Chambers of Urban Utility Tunnels
摘要
Abstract
This review explores issues related to natural gas leakage,diffusion and explosion within gas com-partments in urban utility tunnels.Research on gas leaks in gas compartments must consider the location,size,pipeline operating pressure(pressure variations within the pipeline),ventilation,and the alarm response time of gas detectors.When a significant gas leak occurs in the compartment,increasing ventilation alone is insufficient to prevent gas accumulation.It is necessary to simultaneously activate compartmental fire doors for containment and isolation.Summarizing existing research findings on confined space gas explosions indicates that simulation studies of gas leaks and explosions in gas compartments should thoroughly consider the tunnel′s length-to-diameter ratio and the influence of objects inside the compartment.Additionally,the explosion shock wave intensity is high,necessitating the implementation of appropriate explosion-proof measures.Valuable insights for further re-search on the safety of natural gas pipeline transportation in urban utility tunnels are provided.关键词
综合管廊/燃气舱/泄漏扩散/爆炸/报警响应Key words
utility tunnel/gas chamber/gas leakage and diffusion/gas explosion/alarm and response分类
资源环境引用本文复制引用
沈静,杜胜群,李昕岳,杨凯,吕鹏飞..地下综合管廊天然气泄漏扩散及爆炸研究综述[J].灾害学,2025,40(1):129-134,6.基金项目
北京市教委科技一般项目"城市地下综合管廊燃气泄漏灾害预警与应急辅助决策研究"(KM202110017001) （KM202110017001）
