Tunnel vault concrete void prevention forward jacking device

A concrete and vault technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of unfilled full linings and voids, etc.

Pending Publication Date: 2019-11-08
中铁十一局集团第五工程有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention aims to solve the problem that the lining of the tunnel lining is not fully filled with concrete, which causes the lining to be voided

Method used

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  • Tunnel vault concrete void prevention forward jacking device
  • Tunnel vault concrete void prevention forward jacking device
  • Tunnel vault concrete void prevention forward jacking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Below by embodiment and in conjunction with accompanying drawing, the present invention will be further described:

[0025] combine image 3 — Figure 5 As shown, a tunnel vault concrete anti-vacation forward punching device is mainly composed of a fixed vertical rod 1, a lifting seat 2, a closed gate valve 3 and a conduit 4. The conduit 4 is fixedly installed above the lifting seat 2, and is used for connecting the concrete delivery pump pipe. The closed gate valve 3 is installed on the upper end of the fixed vertical rod 1, and the opening and closing of the closed gate valve 3 is automatically controlled by a horizontal cylinder 5 or an electric push rod. The lifting seat 2 can move up and down under the drive of the power and the guidance of the fixed pole 1, thereby driving the conduit 4 to rise or fall through the gate hole of the closed gate valve 3. The driving power of lifting base 2 can be manually driven, can be pneumatic or electric mode. There are prefe...

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PUM

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Abstract

The invention discloses a tunnel vault concrete void prevention forward jacking device. The tunnel vault concrete void prevention forward jacking device comprises fixed vertical rods, a lifting seat,sealed gate valves and a guide pipe, wherein the guide pipe is fixedly mounted at the upper part of the lifting seat; the sealed gate valves are mounted at the upper ends of the fixed vertical rods; the lifting seat is capable of moving up and down under driving of power and guidance of the fixed vertical rods so as to drive the guide pipe to rise or fall through gate holes of the gate valves. Thedevice is capable of carrying out forward layered pouring, layered jacking and perfusion jacking and ensuring that the vault concrete is poured densely and fully; and the problems of voids of tunnellinings are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of engineering construction, and in particular relates to a concrete pouring device for a tunnel vault, which can prevent the vault from being empty after pouring. Background technique [0002] combine figure 1 , figure 2 As shown, the traditional tunnel lining vault concrete is poured by reverse pressure in the lining trolley. The principle is that the pressure of the concrete delivery pump pushes the lining concrete from the bottom to the top until the concrete fills the entire lining trolley. The reverse topping grouting pipe is directly welded to the lining trolley, and does not go deep into the interior of the lining trolley. [0003] The deficiencies in the prior art are reflected in the following points: [0004] (1) The pumping pressure required for reverse top pressure is high, and the concrete cannot be fully pumped when the pumping pressure is insufficient; [0005] (2) The delivery pump is d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/18
CPCE21D11/10E21D11/18
Inventor 王元清郑心铭李勇骆云超邹福林王更峰张光明赵鹏飞袁振华田凤学
Owner 中铁十一局集团第五工程有限公司
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