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Shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers

A shield tunnel segment and distributed optical fiber technology is applied in measurement devices, optical devices, instruments, etc., to achieve the effects of stable performance, convenient construction and high sensitivity

Pending Publication Date: 2017-07-28
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems existing in the existing shield tunnel segment overall deformation monitoring technology, and to provide an automatic and intelligent monitoring technology with strong operability and low cost, which can realize the overall deformation monitoring of the shield tunnel segment. Distributed optical fiber-based overall deformation monitoring device and monitoring method of shield tunnel segment

Method used

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  • Shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers
  • Shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers
  • Shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers

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Embodiment Construction

[0045] The device and method provided by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0046] see figure 1 , figure 2 , image 3 and Figure 4 , the present invention provides a shield tunnel segment overall deformation monitoring device based on distributed optical fiber, the monitoring device includes pasted distributed optical fiber 3, carbon fiber primer 4, connecting optical fiber 5, wire 6 and optical fiber analyzer 7; The adhesive distributed optical fiber 3 is composed of carbon fiber braided mesh 31, distributed optical fiber 32 and polyester thread 33; the adhesive distributed optical fiber 3 is arranged on the outer surface of the upper half of the shield tunnel segment 1; the monitoring sections are connected by The optical fiber 5 is connected; the adhesive distributed optical fiber 3 is led to the shield tunnel opening through the wire 6, and is connected with the opti...

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Abstract

The invention belongs to the technical field of tunnel and underground engineering, and relates to a shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers. The shield tunnel segment overall deformation monitoring device based on distributed fibers includes paste-type distributed fibers, a carbon fiber primer, connection fibers, a lead wire and a fiber analyzer, wherein a shield tunnel segment to be monitored is provided with a plurality of mutually parallel monitoring sections; the paste-type distributed fibers are distributed on each monitoring section through the carbon fiber primer; the paste-type distributed fibers which are arranged on the plurality of mutually parallel monitoring sections are in serial connection through the connection fibers; the fiber analyzer is arranged outside the shield tunnel segment; and the paste-type distributed fibers are connected with the fiber analyzer through the lead wire. The shield tunnel segment overall deformation monitoring device and monitoring method based on distributed fibers is high in operationality and relatively lower in cost, and can realize automation and intelligentization of shield tunnel segment overall deformation monitoring.

Description

technical field [0001] The invention belongs to the technical field of tunnels and underground engineering, and relates to a shield tunnel segment deformation monitoring device and a monitoring method, in particular to a shield tunnel segment overall deformation monitoring device based on distributed optical fibers and a monitoring method thereof. Background technique [0002] With the rapid development of my country's economy and the urgent needs of society, urban rail transit has become an important part of the infrastructure construction of various cities, and the mileage of rail transit will continue to increase in the next few decades. At present, in my country, shield tunnels account for about 85% of all urban rail transit tunnels. During the construction and operation of the shield tunnel, due to the combined effect of various factors such as segment quality, shield tail grouting quality, environmental changes, and cyclic loads, the shield tunnel segment is prone to w...

Claims

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Application Information

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IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 薛晓辉张军姚广高一杰
Owner SHANXI PROVINCIAL RES INST OF COMM
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