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Settlement optical fiber string, settlement real-time monitoring system and using method thereof

A real-time monitoring system and settlement observation technology, applied in the direction of hydrostatic pressure, etc., can solve the problems that the settlement system cannot realize automatic real-time monitoring and the high cost of monitoring equipment, and achieve the effects of high degree of automation, reduced monitoring cost and large monitoring area

Active Publication Date: 2020-05-08
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing monitoring environment subsidence system cannot realize automatic real-time monitoring and the cost of monitoring equipment is high, the present invention provides a subsidence optical fiber string, a subsidence real-time monitoring system and its use method

Method used

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  • Settlement optical fiber string, settlement real-time monitoring system and using method thereof
  • Settlement optical fiber string, settlement real-time monitoring system and using method thereof
  • Settlement optical fiber string, settlement real-time monitoring system and using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0045] refer to figure 1 , the technical scheme of a sinking optical fiber string of the present embodiment is as follows:

[0046] A sinking optical fiber string 500, including a butterfly-shaped optical fiber 511, and an optical fiber string fixing member 520;

[0047] The butterfly-shaped optical fiber 511 includes two upper end points and two lower rings, and the butterfly-shaped optical fiber 511 is surrounded by an optical fiber;

[0048] Both sides of the front of the optical fiber string fixing member 520 are respectively provided with vertical moving grooves 524, and horizontal positioning members 513 are respectively arranged on the vertical moving grooves 524, and the horizontal positioning members 513 move vertically along the vertical moving grooves 524; Two positioners 523 are arranged between the two vertical movement slots 524;

[0049] The butterfly-shaped optical fiber 511 is arranged between two vertical moving slots 524, the two ends of the butterfly-shap...

Embodiment 2

[0056] refer to Figure 1 to Figure 3 , the technical scheme of a real-time subsidence monitoring system of the present embodiment is as follows:

[0057] A settlement real-time monitoring system, comprising several settlement observation bases 300, at least two optical fiber static level assemblies 400, several settlement optical fiber strings 500 described in Embodiment 1, and an optical fiber demodulator 600;

[0058] The several settlement observation bases 300 are distributed in the area to be measured 200;

[0059] The fiber optic static level assembly 400 includes a fiber optic static level 410, a liquid communication pipe 420, and a level fiber 430. The fiber optic static levels 410 are respectively arranged on the settlement observation base 300, and each fiber optic static level 410 passes through The liquid communication pipes 420 are connected to each other, and each fiber optic static level 410 is connected in series with each other through the level fiber 430 an...

Embodiment 3

[0070] This embodiment provides a method for using the settlement real-time monitoring system described in Embodiment 2.

[0071] The technical scheme of a method for using a settlement real-time monitoring system of the present embodiment is as follows, including the following steps:

[0072] In the first step, the settlement real-time monitoring system is installed in the area to be tested 200;

[0073] In the second step, after the time time1 is passed, after the area 200 to be measured has settled, the settlement deformation d of the surrounding environment of each optical fiber static level 410 is measured by the optical fiber static level 410; The fiber output characteristic constant c of 511; the fiber output characteristic constant c may be wavelength, or reflectivity, or voltage, or light intensity, or fiber loss.

[0074] The third step is to fit the settlement deformation d and the optical fiber output characteristic constant c measured by at least two groups of op...

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Abstract

In order to solve the problems that an existing environment settlement monitoring system cannot achieve automatic real-time monitoring and monitoring equipment is high in cost, the invention providesa settlement optical fiber string, a settlement real-time monitoring system and a using method thereof. The technical scheme of the settlement optical fiber string is as follows: the settlement optical fiber string comprises a butterfly-shaped optical fiber and an optical fiber string fixing piece, wherein the butterfly-shaped optical fiber comprises two end points at the upper part and two circular rings at the lower part, and the butterfly-shaped optical fiber is formed by encircling an optical fiber; vertical moving grooves are formed in the two sides of the front face of the optical fiberstring fixing piece respectively, horizontal positioning pieces are arranged on the vertical moving grooves respectively, and the horizontal positioning pieces vertically move along the vertical moving grooves; two positioners are arranged between the two vertical moving grooves; the butterfly-shaped optical fiber is arranged between the two vertical moving grooves, the two ends of the butterfly-shaped optical fiber penetrate through the horizontal positioning pieces respectively, and the bottoms of two circular rings of the butterfly-shaped optical fiber are in movable contact with the positioning devices respectively.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a subsidence optical fiber string, a subsidence real-time monitoring system and a use method thereof. Background technique [0002] China is currently a big country in the development and utilization of underground space in the world. The speed of urban rail transit construction ranks first in the world. The overall scale and total amount of urban underground space will soon rank first in the world. Many large-scale underground projects and infrastructure that have attracted worldwide attention are under planning and construction. middle. [0003] The construction of large-scale underground projects will inevitably have an impact on the environment of adjacent buildings (structures), such as the settlement of surrounding soil, cracking of buildings, and differential deformation of subway tunnels. In order to effectively monitor and predict environmental...

Claims

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Application Information

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IPC IPC(8): G01C5/04
CPCG01C5/04
Inventor 龚剑左自波黄玉林顾国明张龙龙潘曦
Owner SHANGHAI CONSTRUCTION GROUP
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