Study On Accident Disaster And Emergency Resuce In Extra Long Highway Tunnel

The accident emergency rescue of extra long highway tunnel has become a focus in tunnel operation. However, the most tunnel accident study were concentrated on Individual research, such as fire ventilation mode, escape and rescue mode of single highway tunnel, lacking all-around study of accident mechanism and emergency rescue in extra long highway tunnel. The main production in this paper as follows:1) From accident management aspect, the accident disaster model of extra long highway tunnel was put forward, tunnel accident prevention mechanism was built, the classification standards and initial emergency response measures of traffic accident, fire accident and dangerous leakage accident were presented.2) Taking urgent need response time of fire vehicle as judgment standard of rescue risk, effective risk analysis model for emergency rescue was constructed, proposition to improve arrangement of fire control strength sectors of tunnel groups was brought forward, and management tactics for the vehicles carrying dangerous cargo passing thorough tunnel were constituted.3) Based on index of disposing of the fire operating mode, rate of traffic flow, personnel, arrangement of horizontal passing way of CangLing tunnel, fire CFD model was established to analyze fire spread and exhaust gas flowing law in different fire situation of tunnel. Evacuating model through horizontal pass way was constructed to analyze evacuating security of person and vehicle in the tunnel.4) Combining rescue and evacuation routes, traffic organization programme of outboard driveway accident, inboard driveway and two driveways were constructed. Preferential option principle of traffic arrangement scheme and a group of traffic control measures of guiding control measures in sector of tunnel in serious accident were put forward.5) From the aspect of practical operation, command mechanism of tunnel emergency rescues was presented. Frame system of the emergency system was constructed. The basic procedure of tunnel emergency rescues was established. Advance scheme of fire accident was organized, and operation plan to tunnel emergency preplan was constituted.6) From tunnel accident characteristic, accident emergency rescue system of extra long tunnel was constructed based on the example of CangLing extra long tunnel, which has directly operating worth to carefully deal with tunnel accident under complicated condition and pragmatic significance on establishing tunnel management mechanism and enhancing our country tunnel safety management level and emergency handling capacity.