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Vault concrete pouring early warning device and construction method thereof

A technology of concrete and early warning, which is applied in the direction of earthwork drilling, shaft equipment, shaft lining, etc. It can solve the problems of vault falling, affecting operation safety, high processing and maintenance costs, etc., and achieves the reduction of grouting costs and the lining structure. Good integrity, the effect of lining structure integrity control

Inactive Publication Date: 2019-06-28
中交中南工程局有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the construction of more and more highway tunnels, diseases caused by voiding of tunnel vaults and water leakage often appear. 1. The maintenance cost is high. In the prior art, after the formwork at the end of the trolley is closed, there is no effective working surface to observe the fullness of the concrete pouring in the formwork. It can only be judged by experience whether the concrete has been poured to a certain position by knocking on the formwork and based on the sound. Therefore, in view of the above status quo, there is an urgent need to develop a vault concrete perfusion early warning device to overcome the deficiencies in current practical applications.

Method used

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  • Vault concrete pouring early warning device and construction method thereof
  • Vault concrete pouring early warning device and construction method thereof

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Experimental program
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Embodiment 1

[0031] see Figure 1~2 , in an embodiment of the present invention, a vault concrete pouring early warning device includes a secondary lining trolley 1, the front end of the secondary lining trolley 1 is provided with a trolley end mold 3, and the arch of the secondary lining trolley 1 There are four grouting holes along the longitudinal direction of the trolley at the center line of the top. The four grouting holes are No. 4 grouting hole 2 for end mold exhaust and No. 3 grouting hole for middle exhaust. The grouting hole 5, the No. 2 grouting hole 6 and the No. 1 grouting hole 8 used to communicate with the pre-embedded grouting pipe 14, the distance between the No. 4 grouting hole 2 and the trolley end mold 3 is 0.6-0.8m , the distance between No. 1 grouting hole 8 and trolley end mold 3 is 1-1.2m, No. 2 grouting hole 6 and No. 3 grouting hole 5 are evenly distributed in No. 4 grouting hole 2 and No. 1 grouting hole Between the holes 8; the bottom of the embedded grouting ...

Embodiment 2

[0035] see Figure 1~2 , a construction method of a vault concrete perfusion early warning device, is characterized in that, comprising the following steps:

[0036] (1) Four grouting holes are opened along the longitudinal direction of the trolley at the center line of the vault of the secondary lining trolley 1, and the four grouting holes are No. Grouting hole 2, No. 3 grouting hole 5 and No. 2 grouting hole 6 for intermediate exhaust, and No. 1 grouting hole 8 for connecting to embedded grouting pipe 14, No. 4 grouting hole 2 and trolley The distance between the end molds 3 is 0.6-0.8m, and the distance between the No. 1 grouting hole 8 and the trolley end mold 3 is 1-1.2m;

[0037] (2) Weld the fixed flange 13 and the positioning flange 12 at the opening of the No. 1 grouting hole 8. The fixed flange 13 and the positioning flange 12 are fixedly connected by full welding, and then the four probes are fixedly installed on the On the overflow tank on the pre-embedded grout...

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Abstract

The invention relates to the technical field of tunnel construction, in particular to a vault concrete pouring early warning device. The device comprises a secondary lining trolley, the front end of the secondary lining trolley is provided with a trolley end die, and four pouring holes are formed in the center line of a vault of the secondary lining trolley in the vertical direction of the trolleyand are the fourth pouring hole, the third pouring hole, the second pouring hole and the first pouring hole from left to right in sequence; an overflowing groove is formed in the end, extending intothe pouring holes, of an embedded pouring pipe, four probes are fixedly installed in the overflowing groove, and a through groove for a wire to conveniently penetrate through is formed in the middle of the embedded pouring pipe; one end of the wire is electrically connected with the probes, and the other end of the wire is electrically connected with an early warning box. According to the vault concrete pouring early warning device, during secondary lining vault pouring, through the early warning box, whether or not full pouring of the vault part is achieved can be visually known, the concealed work of pouring is converted into visible work, and the lining vault defects are prevented.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a vault concrete perfusion early warning device and a construction method thereof. Background technique [0002] A tunnel refers to a channel dug out of an existing building or earth-stone structure. It is an engineering building buried in the ground and is a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. In 1970, the Tunnel Conference held by the International Organization for Economic Cooperation and Development combined various factors and defined a tunnel as: a hole with a cross-sectional area greater than 2 square meters built for a certain purpose and acting under the ground in any way to specify the shape and size. room. [0003] With the construction of more and more highway tunnels, diseases caused by voiding of tunnel vaults and water leakage often appear. 1. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21F17/18
Inventor 陈鹏高丁浩魏庭梦何波波
Owner 中交中南工程局有限公司
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