摘要
火灾是公路隧道最为严重的灾害之一。分析克拉尼提出的高温条件下人员逃生公式,结合公路隧道火灾时的人员逃生情况,对克拉尼公式进行修正。采用有限元用数值模拟方法,详细地研究典型隧道结构段在不同环境风速、不同火灾规模时隧道内的温度场;以修正后的隧道火灾人员逃生公式为判别条件,给出隧道内人员可能逃生的位置和消防救援的安全位置。所得结果对公路隧道灭火救灾预案的编制提供重要的技术支持。
Fire is definitely one of the most serious accidents that may occur in highway tunnels. The Cranee＇s formula, which is used for high temperature cases, is analyzed and modified through combining actual fire conditions. Using the finite element method, the temperature field of a typical tunnel segment with different wind speeds and fire scales is studied. With the modified Cranee＇s formula adopted as the criterion, the probable escape region and the safe region for fire control and rescue are calculated. These results may serve as technical support of counter-measure plans for fire control and rescue operations in highway tunnels.
出处
《土木工程学报》
EI
CSCD
北大核心
2009年第8期115-123,共9页
China Civil Engineering Journal
基金
交通部行业联合科技攻关项目(20033531404)
关键词
隧道火灾
人员逃生
判断条件
消防救援
安全位置
highway tunnel fire
people escape
criterion
fire control and rescue operation
safe location.
