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Prefabricated assembly type shield segment and health monitoring system and integration method thereof

A technology of health monitoring system and shield segment, which is applied in the direction of transmitting sensing components, shaft equipment, and measuring devices by using optical devices, and can solve problems such as decoration conflicts, structural damage, and optical fiber damage, so as to avoid additional damage and simplify The difficulty of construction and the effect of avoiding fiber damage

Active Publication Date: 2020-10-16
杭州鲁尔物联科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing installation methods for distributed fiber grating sensors can easily cause damage to the optical fiber during construction
If the optical fiber is laid after the construction of the structure is completed, it will cause unavoidable additional damage to the structure, and the line is not easy to hide, and it is easy to conflict with the decoration, and the complex external environment may also increase the probability of optical fiber damage

Method used

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  • Prefabricated assembly type shield segment and health monitoring system and integration method thereof
  • Prefabricated assembly type shield segment and health monitoring system and integration method thereof
  • Prefabricated assembly type shield segment and health monitoring system and integration method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1 of the present invention provides a prefabricated and assembled shield segment, and the prefabricated and assembled shield segment is applicable to the health monitoring of the shield structure by adopting the distributed fiber grating sensing technology. figure 1 It is a schematic structural diagram of the prefabricated shield segment provided in Embodiment 1 of the present invention. see figure 1 , the prefabricated shield segment includes a segment body 10 and an optical fiber 20 . The optical fiber 20 is arranged along the longitudinal direction of the segment body 10; the optical fiber 20 includes a fiber body 21 and fiber connectors 22 located at both ends of the fiber body 21, the fiber body 21 is located inside or on the surface of the segment body 10, and the fiber connector 22 is exposed.

[0026] Wherein, during the production process of the prefabricated shield segment, the optical fiber 20 is implanted inside or on the surface; for example, du...

Embodiment 2

[0034] On the basis of the first embodiment, the embodiment of the present invention specifically limits the specific angle of the prefabricated shield segment and the position of the optical fiber in the shield segment.

[0035] figure 2 It is a schematic diagram of the cross-sectional structure of the prefabricated shield segment after construction provided by the second embodiment of the present invention. see figure 2 , the angle of the segment body is 120°, and the optical fiber 20 is located at a position of 40° of the segment body 10 . This setting is beneficial to realize the symmetrical structure of the shield segment. One section needs three prefabricated shield segments. The dividing line 30 is the dividing line of the shield segment of the current section, and the dividing line 40 is the shield segment of the next section. dividing line.

[0036] Exemplarily, during the construction of the shield segment, the optical fiber 20 between the two shield segments is...

Embodiment 3

[0041] On the basis of the above-mentioned embodiments, the embodiment of the present invention also provides a health monitoring system for prefabricated shield segments, which can be used to monitor subway tunnels, highway tunnels, comprehensive pipe corridors, water supply tunnels, Drainage tunnels, power supply tunnels and other shield tunnels composed of prefabricated shield segments. The health monitoring system includes the prefabricated shield segment provided by any embodiment of the present invention, and its technical principles and effects are similar and will not be repeated here.

[0042] On the basis of the above-mentioned technical solutions, optionally, the health monitoring system of the prefabricated shield segment also includes an optical fiber signal analyzer, which is installed inside the shield tunnel at preset distances, and multiple optical fibers are connected to the optical fiber signal Analyzer.

[0043] Wherein, the preset distance may be 10-30 ki...

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Abstract

The embodiment of the invention discloses a prefabricated assembly type shield segment and a health monitoring system and integration method thereof. The prefabricated assembly type shield segment comprises a segment body and an optical fiber; the optical fiber is arranged in the longitudinal direction of the segment body; and the optical fiber comprises an optical fiber body and optical fiber connectors located at the two ends of the optical fiber body, the optical fiber body is located inside or on the surface of the segment body, and the optical fiber connectors are exposed. Compared with the prior art, the embodiment of the prefabricated assembly type shield segment and the health monitoring system and integration method thereof can simplify the construction difficulty of the optical fiber and can prevent the optical fiber from being damaged.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of shield structures, and in particular to a prefabricated shield segment and its health monitoring system and integration method. Background technique [0002] Existing shield structures are mostly monitored by manual detection or automatic sensor point arrangement. Among them, manual inspection uses traditional total station, percussion hammer or drilling, etc., which has the problems of low work efficiency, dependence on the experience of inspectors, and may cause some damage to the structure. Point layout automatic monitoring focuses on monitoring the performance indicators of several specific sections through sensors such as stress and strain, which requires complex power supply and signal transmission systems, and it is difficult to describe the health status of the overall structure. [0003] With the development of technology, a small number of projects adopt distributed fi...

Claims

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Application Information

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IPC IPC(8): E21D11/08G02B6/50G01D5/353
CPCE21D11/08G02B6/50G01D5/35364
Inventor 杨承奂李淑祎包元锋
Owner 杭州鲁尔物联科技有限公司
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