市政技术2025，Vol.43Issue(11)：73-80,130,9.DOI:10.19922/j.1009-7767.2025.11.073
综合管廊电缆舱防火分区长度研究
Study on the Length of Fire Compartments of Cable Cabin in Utility Tunnels
王发玲 1龚哲2
作者信息
- 1. 武汉市建设学校,湖北武汉 430071
- 2. 武汉市政工程设计研究院有限责任公司,湖北武汉 430023
- 折叠
摘要
Abstract
The impact of the current regulations of the 200-meter fire compartment length for utility tunnel cable chambers on engineering design and urban aesthetics was investigated in this study.Through fire dynamics simula-tion and multi-factor system analysis,the scientific methods was explored for setting fire compartment lengths.A full-scale cable chamber fire model was established by FDS software under four typical scenarios(fire compartment lengths of 200 m/400 m,and fire sources at mid/end sections).From perspectives of fire loss control,personnel e-vacuation,chamber ventilation,and power distribution,the impact of the key factors of fire loss control,personnel evacuation safety,coordination of ventilation-power distribution on the fire compartment length of utility tunnel ca-ble chambers were systematically analyzed.The findings indicate that longitudinal partitions along the cable cham-ber have limit effectiveness in reducing fire impact,while the segregation measures to prevent cable-to-cable igni-tion are critical measures.Under the four typical scenarios,the personnel evacuation requirements should be com-prehensive considered as well as overall arrangement of coordination layout of fire compartments,ventilation zones,and power distribution zones with fire compartment length of over 400 meters.关键词
综合管廊/电缆舱/防火分区长度/人员逃生/通风Key words
utility tunnel/cable cabin/fire compartment length/personnel escape/ventilation分类
建筑与水利引用本文复制引用
王发玲,龚哲..综合管廊电缆舱防火分区长度研究[J].市政技术,2025,43(11):73-80,130,9.
