Long-distance distributed method and system for monitoring water level depth of tunnel water drainage channel

A distributed monitoring and drainage channel technology, applied in the fields of geotechnical engineering, surveying engineering, and tunnel engineering, can solve the problems of not being able to get feedback information in time, low intelligence, time-consuming and labor-intensive, etc., to meet long-term measurement and monitoring, The effect of strong market competitiveness and good application prospects

Inactive Publication Date: 2016-12-21
苏州市轨道交通集团有限公司 +2
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Problems solved by technology

[0003] In actual engineering, the monitoring of the drainage depth in the drainage channel in the tunnel mainly relies on manual inspection. The disadvantage of this method i

Method used

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  • Long-distance distributed method and system for monitoring water level depth of tunnel water drainage channel
  • Long-distance distributed method and system for monitoring water level depth of tunnel water drainage channel
  • Long-distance distributed method and system for monitoring water level depth of tunnel water drainage channel

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Example Embodiment

[0022] Attached below figure 1 , Attached figure 2 , Attached image 3 , The markings in the figure are as follows: 1—tunnel track; 2—carbon fiber internal heating optical cable; 3—drainage channel; 4—distributed optical fiber temperature demodulator; 5—display; 6—data processing system; 7—heating system; 8— Fixed point fixture; Q 1 —The energy transmitted into the air; Q 2 -The energy propagated into the water. 9—screw fixing hole; 10—fixed-point clamp female piece; 11—anchor hole; 12—fixed-point clamp male piece; 13—screw fixing hole; 14—outer protective casing.

[0023] According to the embodiments, the layout process and the measurement process in the present invention are described in detail as follows:

[0024] A long-distance distributed monitoring method for the water level depth of the tunnel drainage channel: the temperature difference between the water and the air medium measured by the carbon fiber inner heating sensor optical cable is used, and the temperature gradie...

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Abstract

A long-distance distributed method for monitoring the water level depth of a drainage channel in a tunnel, comprising a carbon fiber internal heating optical cable, the carbon fiber internal heating optical cable is fixed on the side wall of the drainage channel through a clamp, and communicates with a distributed optical fiber temperature demodulator after forming a loop , the distributed optical fiber temperature demodulator is communicated with the computer; the degree of energy propagation in different media in water and in air is different after the carbon fiber is heated by using the carbon fiber inner heating cable, and the temperature gradient formed at the interface of different media is different, and the measured Different temperature gradients or temperature differences formed by different media interfaces, based on which the distributed optical fiber temperature demodulator and the computer demodulate the data to judge the level of the water level. The invention has the advantages of distributed monitoring, simple structure, convenient construction, low cost and the like.

Description

technical field [0001] The invention belongs to the fields of tunnel engineering, geotechnical engineering and surveying engineering, and in particular relates to a method capable of realizing long-distance distributed monitoring of tunnel drainage depth. Background technique [0002] Tunnel engineering is widely used in the construction of urban subway traffic, high-speed rail, and highways across mountains and waters because of its relatively low cost and the advantages of saving ground space. As a relatively concealed project, the drainage channel construction of the tunnel is a very important link in the whole project. When the water level in the tunnel is too high due to poor drainage or not timely, it will often cause traffic accidents and endanger personal and property safety. Therefore, monitoring the water level and depth of the drainage channel in the tunnel, as an auxiliary decision-making work, has great engineering significance. [0003] In actual engineering, ...

Claims

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Application Information

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IPC IPC(8): G01F23/22G01K11/32G01K11/324
CPCG01F23/22G01K11/32
Inventor 王占生施斌王兴刘建国魏广庆李文峰张振
Owner 苏州市轨道交通集团有限公司
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