Underground ventilator room system shared by double-track tunnels

Abstract

The invention discloses an underground ventilator room system shared by double-track tunnels. The underground ventilator room system comprises the double-track tunnels and an underground ventilator room arranged on the outer sides of the double-track tunnels. An air supply duct, an exhaust duct and a natural air duct are formed in the underground ventilator room. The air ducts all penetrate through the underground ventilator room, an axial flow fan is arranged at the intersection of the air supply duct and the ventilator room, and the ends, away from the tunnels, of the air ducts communicate with a ventilating transverse gallery. The other end of the air supply duct communicates with a right-track tunnel through a right-track air supply opening, and a left-track air supply opening is formed in the middle of the portion, connected with the underground ventilator room and the right-track air supply opening, of the air supply duct and communicates with a left-track tunnel. The other end of the exhaust duct communicates with the right-track tunnel through a right-track exhaust opening, and a left-track exhaust opening is formed in the middle of the portion, connected with the underground ventilator room and the right-track exhaust opening, of the exhaust duct and communicates with the left-track tunnel. The natural air duct comprises a natural air duct body and a transportation channel. According to the underground ventilator room system shared by the double-track tunnels, the number of roadways is reduced, the ventilator utilization rate is increased, the project complexity can be effectively reduced, the project cost can be reduced, and the construction period can be shortened.

Description

technical field [0001] The invention relates to the field of highway tunnels, in particular to an underground fan room system shared by two-lane tunnels. Background technique [0002] When the car passes through the tunnel, it will continuously emit exhaust gas into the tunnel. When the tunnel is relatively short, due to the influence of natural wind and traffic wind, the exhaust gas will not accumulate too high in the tunnel; when the tunnel length is long, the exhaust gas will accumulate in the tunnel, and when the concentration of exhaust gas reaches a certain level, it will affect human health. Comfort, reduced visibility inside the cave. [0003] Longitudinal segmental mechanical ventilation by setting up fan rooms for segmental air supply and exhaust is currently a common way to solve the above problems in long highway tunnels. According to the ground geological conditions, underground fan rooms and above-ground fan rooms can be installed. For difficult and complex m...

AI Technical Summary

Problems solved by technology

At present, the scale of the underground fan room is large, the number of roadways is large, the spatial relationship is complex, there are many intersections, and various constructions such as upper spans and lower crossings have a great impact and are difficult to construct.

However, according to the research on the tunnels currently in operation, the utilization rate of the underground fan rooms is not high, and the idle rate of the fans is relatively high, because most of the fan rooms are set up in consideration of the long-term traffic volume.

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