Tunnel two-lining concrete pouring system

Abstract

The invention relates to a tunnel two-lining concrete pouring system which comprises a flow monitoring device, a molding temperature monitoring device, a pressure visualization soft lapping device, aplurality of high-frequency pneumatic vibrators (12), a gas compressor (13), and an electric cabinet (40), wherein a three-dimensional laser scanner of the flow monitoring device and a flow sensor (1)are all connected with the electric cabinet (40), a temperature sensor (5) of the molding temperature monitoring device is arranged on a back surface of a tunnel two-lining trolley steel molding plate (3), the temperature sensor (5) is connected with the electric cabinet (40), the pressure visualization soft lapping device comprises a rubber plate (6), the rubber plate (6) is additionally arranged at the bottom of a lapping plate (8), a pressure sensing chip (9) is arranged on the rubber plate (6), the pressure sensing chip (9) is connected with the electric cabinet (40), the high-frequency pneumatic vibrators (12) are arranged on the back surface of the two-lining trolley steel molding plate (3), a shunt pipe (14) is provided with a pneumatic switch electromagnetic valve (16), and the gas compressor (13) is connected with the electric cabinet (40). By the adoption of the tunnel two-lining concrete pouring system, automation of two-lining concrete pouring is achieved.

Description

technical field [0001] The invention relates to a concrete pouring system, more specifically relates to a tunnel secondary lining concrete pouring system, and belongs to the technical field of tunnel lining construction. Background technique [0002] At present, with the rapid development of high-speed rail in my country, there are more and more tunnels; with the continuous improvement of tunnel lining quality and standardized construction requirements, the quality requirements of tunnel lining concrete are getting higher and higher. [0003] In the traditional tunnel lining process, the steel formwork of the second lining trolley is directly overlapped with the concrete of the upper slab before concrete pouring, and there is no relevant top pressure control, so it is easy to crack the lapped concrete and cause the construction joints to fall off; during the pouring process, The ground pump pumps the concrete to each feed port of the second lining trolley, and vibrates with ...

AI Technical Summary

Problems solved by technology

[0003] In the traditional tunnel lining process, the steel formwork of the second lining trolley directly overlaps the concrete of the upper slab before concrete pouring, and there is no relevant top pressure control, so it is easy to crack the lapping concrete and cause the construction joints to fall off; during the pouring process, The ground pump pumps the concrete to each feed port of the second lining trolley, and vibrates with a hand-held vibrator at the feed port, and uses an electric attached vibrator to vibrate when pouring the vault. However, due to The second lining vault has dense steel bars, and the vault concrete cannot be vibrated manually, and the frequency of the vibrator is insufficient and the vibration radius is small, so it is impossible to ensure whether the vault concrete is dense and full, which will easily lead to voids in the tunnel lining vault concrete and insufficient concrete strength Quality problems; the process of the second lining arch top punching process, because the concrete construction is invisible, the traditional method depends on whether there is any grout leakage in the end formwork, and it is impossible to accurately judge whether the second lining arch concrete is filled, which may easily lead to the hollowing out of the tunnel lining arch concrete ; The quality of the tunnel lining vault caused a great safety risk to the later train operation, so the traditional tunnel lining process can no longer meet the construction needs

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