Tunnel two-lining concrete pouring system

A concrete and tunnel technology, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problems of arch concrete artificiality, small vibration radius, concrete voids, etc., to solve the problem of uncompacted concrete, ensure construction quality, and meet construction needs Effect

Pending Publication Date: 2019-04-16
NO 4 ENG CO LTD OF CHINA RAILWAY 11 BUREAU GRP +1
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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 smal

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  • Tunnel two-lining concrete pouring system
  • Tunnel two-lining concrete pouring system
  • Tunnel two-lining concrete pouring system

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[0044] The present invention will be further described in detail below in conjunction with the description of the drawings and the specific embodiments.

[0045] See figure 1 , The concrete pouring system for the second lining of the tunnel includes a flow monitoring device, a mold temperature monitoring device, a pressure visualization soft lap device, multiple high-frequency pneumatic vibrators 12, a gas compressor 13 and an electric control box 40.

[0046] See figure 2 The flow monitoring device includes a three-dimensional laser scanner and a flow sensor 1. The flow sensor 1 is installed on the concrete main conveying pump pipe 2; all concrete entering the second lining is transported through the concrete main conveying pump pipe 2. The sensor 1 records the volume of concrete passing through the concrete main pump pipe 2. The three-dimensional laser scanner and the flow sensor meter 1 are all connected to the electric control box 40, and the electric control box 40 receives t...

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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 ...

Claims

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Application Information

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IPC IPC(8): E21D11/10
CPCE21D11/105Y02E10/20
Inventor 李俊谭发刚刘俊成袁中华赵晓军焦贤福操光伟
Owner NO 4 ENG CO LTD OF CHINA RAILWAY 11 BUREAU GRP
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