Study On The Road Tunnel Longitudinal Ventilation Desigh And The Control Method Of Jinping

JINPING auxiliary tunnel lies on the big river master stream of the bend of JINPING. About 175 km. It mainly serves goods or materials transports of first, second stage water and electricity station and for watercourse construction of second electric station. It has A and B two lines. The vehicle is one-way traffic. This tunnel have three specialties because of the limitations of topographical condition. First, there is no slope hole or silo, the auxiliary hole of construction adopts longitudinal ventilation only by jet Second, it belongs to deep buried hole, long body, little shape section. Third, the vehicle passing through are big diesel vehicle. The flow is small, but the pollution emission of single vehicle is very big. The pollutant is mainly VI CO and NOx.This paper made some investigation about the permissible concentration limits about contaminations in roadway tunnel from the point of view of the effects on the body. For five service years, this paper got the economic jet fans combination through computational analysis from energy-conserving angle.The choice of the tunnel control method of JINPING has great meaning as to security ventilation and economical operation. This paper has put forward the general method to set up GA control system of longitudinal ventilation only by jet For JINPING tunnel through imitating pollutant distributing and ventilation facilities running situation under the different traffic of emulation, made some compares and analysis in control effect and energy consummation with The neural-fuzzy control system, the neural network controls online on different traffic situation. the result shows it has good control results when adopted GA control system in longitudinal ventilation only by jet But the strong adaptive capacity of he neural network controls on line made its effect better.This paper first use the idea of GA in longitudinal ventilation only by jet, the result of its emulation simulation has shown feasibility. The GA control system of longitudinal ventilation only by jet of highway tunnel has feasibility and actual using value.