Tunnel lining concrete heat preserving and maintaining construction device

Abstract

Disclosed is a tunnel lining concrete heat preserving and maintaining construction device. The tunnel lining concrete heat preserving and maintaining construction device is characterized by comprising a first trolley, a second trolley and a third trolley which are sequentially connected, or comprising a first trolley and a second trolley which are sequentially connected, or comprising a second trolley and a third trolley which are sequentially connected, or comprising a first trolley and a third trolley which are sequentially connected, wherein the three trolleys are each provided with a template supported through a supporting rod. The tunnel lining concrete heat preserving and maintaining construction device has the advantages that the three construction trolleys conduct heat preservation on secondary lining at first, the temperature difference between the interior and the exterior is decreased, then, heat preservation and moisture retention are carried out on concrete, concrete frost heaving is avoided, and finally the concrete is slowly cooled through a cooling layer, so that the quality problem generated by the large temperature difference between pre-construction and post-construction is avoided. The tunnel lining concrete heat preserving and maintaining construction device has the advantages of being stable in construction quality and low in manufacturing cost and has the wide market prospect.

Description

technical field [0001] The invention relates to a tunnel construction device, in particular to a tunnel lining concrete thermal insulation maintenance construction device. Background technique [0002] Concrete lining trolley is tunnel Secondary construction process lining Special equipment must be used in the construction of concrete lining on the inner wall of the tunnel. Concrete lining trolley is an indispensable non-standard product for secondary lining in the tunnel construction process, mainly including simple lining trolley, fully hydraulic automatic walking lining trolley and grid lining trolley. Fully hydraulic lining trolley can be divided into side-top arch type, full-circle needle beam type, bottom mold needle-beam type, full-circle walking type, etc. It is also widely used in the construction of hydraulic tunnels and bridges slip mode , jacking sliding mode and Turn over the mold wait. [0003] For the winter construction of the tunnel, due to the rela...

AI Technical Summary

Problems solved by technology

However, in order to prevent external cold air from entering, the tunnel is sealed, so that the oxygen will be less and less during the heating process of the furnace, which is very unfavorable to the health of the construction workers. For example, Patent Application No. 201310165307. The heating and antifreezing method for concrete construction in tunnels in winter includes raw material warehouses, floor heating heating pipes, boiler rooms, circulating pumps, fans and air ducts. There is a fan on the side, and the fan is connected to the air pipe. The raw material bin includes the cement bin, the crushed stone bin that has been inspected, the sand bin that has been inspected, the crushed stone bin that is to be inspected, and the sand bin that is to be inspected. Boiler room, there is a door curtain on one side of the boiler room, a boiler is installed in the boiler room, and the water tank is located on one side of the raw material warehouse. It is connected with the boiler, the other end of the floor heating heating main pipe is connected with the water tank, one end of the floor heating return water main pipe is connected with the water tank, the other end of the floor heating return water main pipe is connected with the boiler, and the water tank is provided with a water tank water supply pipe, and the water tank One end of the water supply pipe is connected to the water tank, and the other end of the water supply pipe of the water tank is connected to the floor heating main pipe. A floor heating heating pipe is respectively laid under the crushed stone silo, the inspected sand silo, the uninspected crushed stone silo and the uninspected sand silo, and one end of the floor heating heating pipe is connected to the main floor heating heating pipe , the other end of the floor heating heating pipe is connected to the floor heating return water main pipe, a circulation pump is installed on the floor heating return water main pipe in the boiler room, and a bypass valve is installed on the floor heating return water main pipe between the circulation pump and the boiler"

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