Tunnel construction cooling device and method

Abstract

The invention discloses a tunnel construction cooling device and method. The tunnel construction cooling device includes a press-in type fan, a fog gun machine, a heat insulation water tank and a cooling device body. The cooling device body is installed in the heat insulation water tank. The output end of the heat insulation water tank communicates with the input end of the fog gun machine. The output end of the fog gun machine and the input end of the press-in type fan are arranged oppositely. The cooling method of the tunnel construction cooling device includes the following steps that 1, the heat insulation water tank is filled with sufficient water; 2, low-temperature liquid is led into the cooling device body; 3, the cooled water in the heat insulation water tank is led into the fog gun machine and is atomized and sprayed out by the fog gun machine; and 4, the press-in type fan sucks cold air from a spray-out area of the fog gun machine and sends wind to a construction section ina tunnel. According to the tunnel construction cooling device and method, the temperature of the construction position in the tunnel can be reduced, the life safety of workers is ensured so that the workers can be able to work normally, the cost is saved, manpower is saved, and the construction environment is kept good.

Description

technical field [0001] The invention relates to the technical field of tunnel construction cooling, in particular to a tunnel construction cooling device and method. Background technique [0002] Chongqing Nanchuan-Liangjiang New District Expressway NL4 Contract Section Chunchunmen Tunnel (Chunchunmen is a tunnel with a total length of 6470m, which is an extra-long tunnel and is a control project of the entire Nanliang Expressway. The construction period is tight, the task is heavy, and the schedule is under great pressure. During the construction process , because the working face of the tunnel is single, the air in the tunnel is sent from the opening to the face of the tunnel, so the temperature of the air in the tunnel is affected by the temperature of the outside atmosphere. For example, in June, July, August and September, the hot In summer, the atmospheric temperature can reach 40°C. Coupled with the heat generated by the operation of mechanical equipment in the tunnel...

AI Technical Summary

Problems solved by technology

Sprinkling water to cool down only has cooling effect on the pouring inverted arch section in the tunnel. There is no way for the upper pilot pit of the tunnel, because sprinkling water on the upper pilot pit will deteriorate the construction environment and cause the upper pilot pit to be muddy, which will affect civilized construction. At the same time, watering will cost manpower , high pumping costs; more costly to install air conditioners and place ice cubes

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