Highway tunnel fire risk quantitative evaluation method

Abstract

The invention discloses a highway tunnel fire risk quantitative evaluation method. Firstly, classifying traffic compositions in a tunnel; then respectively calculating fire risk values of various vehicle models under the reasons of vehicle faults, unintentional behaviors and intentional behaviors; respectively listing event trees during collision of two vehicles and collision of three vehicles according to a permutation and combination method; respectively calculating a fire risk value under each collision condition; and comparing the maximum value of the fire risk under the collision condition with the risk value of the fire caused by the reasons of the vehicle fault, the unintentional behavior and the intentional behavior, and determining the scene with the maximum risk value and the corresponding fire risk value. The tunnel fire risk situation can be rapidly evaluated according to the traffic compositions in the tunnel, the fire scene with the maximum risk in the tunnel is obtained,and therefore, the disaster prevention and rescue strategy can be formulated in a targeted mode, and the risk is reduced. The evaluation method is unified in calculation method, can be used for riskcomparison between tunnels, and lays a foundation for establishing a tunnel fire risk library and an accident summary library.

Description

technical field [0001] The invention relates to the technical field of tunnel risk assessment, in particular to a method for quantifying the fire risk assessment of highway tunnels, which is applicable to the fire risk assessment of urban tunnels at all levels. Background technique [0002] With the rapid development of the economy and the construction of a large number of urban traffic tunnels, many traffic safety problems have followed, and tunnel fires are the first to suffer. On March 24, 1999, a fire broke out in the Mont Blanc tunnel connecting France and Italy, killing 41 people and burning 43 vehicles. It was not reopened until March 11, 2002 after being closed for 3 years; May 1999 On the 29th, a fire broke out in the Tauern Tunnel in Austria. The fire lasted for 4 hours, killing 13 people and destroying 34 vehicles. Huge casualties and losses. There are few holes connecting the tunnel with the outside world, so the fire smoke is easy to quickly fill the whole hol...

AI Technical Summary

Problems solved by technology

[0004] At present, the values ​​in most fire risk assessment methods mostly rely on expert evaluation, which is highly subjective, and it is difficult to form a unified evaluation standard.

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