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Real-time monitoring system and method for shield tunnel segment joint water leakage

A shield tunnel segment and real-time monitoring system technology, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as difficult monitoring, troublesome, impossibility of waterproofing and water control

Active Publication Date: 2021-02-12
SHANDONG JIANZHU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, judging from the current technology, it is not easy to monitor the leakage of segmental water in the early stage, and it can only be discovered after a large area of ​​water leakage occurs in the tunnel. Yu Weiran

Method used

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  • Real-time monitoring system and method for shield tunnel segment joint water leakage
  • Real-time monitoring system and method for shield tunnel segment joint water leakage
  • Real-time monitoring system and method for shield tunnel segment joint water leakage

Examples

Experimental program
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Effect test

Embodiment 1

[0031] This embodiment provides a real-time monitoring system for leakage of water in the joints of shield tunnel segments, which is arranged inside the waterproof layer of the segment 1, and the waterproof layer is arranged at the circumferential joints and longitudinal connections between adjacent segments 1. Seam. like figure 1 As shown, the segments 1 are connected in the circumferential direction to form a ring, and a plurality of rings form a hollow cylindrical structure in the longitudinal direction.

[0032] Further, the segments 1 are inserted longitudinally through the longitudinal ribs 2 and the matching longitudinal rib holes. The waterproof layer is made of waterproof coiled material. In order to fully ensure the waterproof effect of the waterproof layer, the waterproof layer must be closely overlapped; that is, the waterproof layers at the circumferential joints and longitudinal joints are overlapped with each other.

[0033] The two ends of the segment 1 are r...

Embodiment 2

[0043] This embodiment provides a method for real-time monitoring of leakage water in the joints of shield tunnel segments. First, the real-time monitoring system for leakage water is installed in the waterproof layer between the shield tunnel segments. Specifically, the first weak current wire 9, the weak current wire bundle 8, and the second weak current wire 7 are arranged at the circumferential connection seam position of the segment 1, and the first weak current wire 9 and the weak current wire bundle 8 The conductive cotton thread 5 meeting water is arranged at intervals.

[0044] The third weak current wire 13, the fourth weak current wire 14 and the electrode 10 are fixed at the longitudinal connecting seam of the segment 1, one end of the third weak current wire 13 and the fourth weak current wire 14 is connected to the water conductive cotton thread 5, and the other end is connected through the electrode 10 The second weak current wire 7.

[0045] The segment 1, the...

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Abstract

The invention discloses a real-time monitoring system and method for shield tunnel segment joint water leakage. The technical scheme is that the real-time monitoring system comprises a first weak current wire and a weak current wire bundle, and any wire of the first weak current wire and the weak current wire bundle is connected through a plurality of water-encountering conductive cotton threads,so as to form an access when water leakage occurs; and the first weak current wire and the weak current wire bundle are connected with a signal encoder, the signal encoder is connected with a monitoring information acquisition station through a tunnel signal line, and information of the monitoring information acquisition station is finally transmitted to a subway monitoring center. According to the real-time monitoring system and method for shield tunnel segment joint water leakage, the water leakage part of a shield tunnel segment joint can be timely and accurately found, the water leakage damage can be found as soon as possible, targeted treatment is achieved, and therefore the maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the field of rail transit engineering, in particular to a system and method for real-time monitoring of seepage water at joints of shield tunnel segments. Background technique [0002] After the tunnel construction is completed, especially in water-rich large-section shield tunnels, due to abundant groundwater, high water pressure or long segment joints, it is very easy to have poor sealing of the gasket and local water leakage at the segment joints. Phenomenon. [0003] The inventors found that currently the monitoring sensors commonly used to monitor water leakage at segment joints are often expensive, so it is impossible to install a sensor at each segment joint to monitor initial water leakage of segments. Therefore, judging from the current technology, it is not easy to monitor the leakage of segmental water in the early stage, and it can only be discovered after a large area of ​​water leakage occurs in the tunnel. Befo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18E21F17/00E21D11/08
CPCE21F17/18E21F17/00E21D11/083Y02E10/20
Inventor 王军李克金李秀东商金华梁尔斌范夕森王志康安芳慧李勋韩健勇吴圣智
Owner SHANDONG JIANZHU UNIV