包家山特长公路隧道斜竖井排烟模式实验研究

The Experimental Study on Shaft Smoke Exhausting Model of the Extraordinary Long Highway in Baojiashan Tunnel

包家山隧道为分离式长11.2 km特长公路隧道,通风排烟的好坏与否,直接关系到隧道的安全运行,合理的通风排烟方案能有效控制烟流的温度及其蔓延速度和方向,为火灾时人员、车辆安全疏散和火灾扑救提供极大便利,同时可以大大降低隧道结构高温损伤。研究包家山隧道斜竖井模式下的火灾通风排烟控制,给出不同区段火灾工况下对烟气控制效果最佳的方案,对隧道日常运营和火灾时的救援具有重要意义。

Baojiashan extra - long tunnel which is 11.2 kilometers long is a kind of a separated tunnel. The safe operation of the tunnel is effected by the ventilation and smoke exhaustion directly. A right ventilation and smoke exhaustion program is beneficial to personnel and vehicles evacuation, fire -fighting and damage reduction to tunnel structure in fire by controlling the temperature, the velocity and the direction of smoke flow. It is helpful to daily operations and fire rescue that the best smoke control is determined in a fire scenario of different sections by studying ventilation and smoke exhaust in inclined shaft model of Baoiiashan tunnel.