汾石高速东山隧道通风解决方案

Ventilation Solution of Dongshan Tunnel in Fenshi Expressway

高速公路特长隧道通风方案的确定与隧道长度、交通量组成比例、坡度坡向等参数息息相关,对隧道通风需风量进行优化,提出重载LNG货车的比例调查,可极大减少通风控制参数VI的数值,进而影响整条隧道计算需风量和通风规模。同时对汾石高速东山特长隧道进行通风井送排式纵向通风方案深化设计。

The ventilation scheme of an expressway extra-long tunnel is closely related to the tunnel length,traffic volume proportion,slope,aspect,and other parameters.This paper optimizes the required airflow for the tunnel ventilation and proposes the proportion investigation of the LNG heavy truck,which can greatly reduce the value of VI,a ventilation control parameter,and then affect the calculation of the required airflow and ventilation scale of the whole tunnel.In this paper,the longitudinal sending-exhausting ventilation with ventilation shaft is designed for Dongshan Tunnel in Fenshi Expressway.