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Deformation moritoring method for tunnel like engineering and apparatus thereof

A technology of deformation monitoring and engineering, applied in the direction of measuring devices, instruments, etc., can solve problems affecting construction operations, installation difficulties, and damage to measuring lines

Inactive Publication Date: 2008-12-10
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the traditional convergence gauge and multi-point displacement gauge are used to monitor the deformation of the cave itself and the surrounding rock mass, which will inevitably affect the construction work, and the survey line is easily damaged during the construction process
[0006] In addition, mechanically anchored or grouted multi-point displacement meters are difficult to install on site; differential resistance multi-point displacement meters will cause hysteresis and temperature drift of displacement changes due to temperature changes

Method used

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  • Deformation moritoring method for tunnel like engineering and apparatus thereof
  • Deformation moritoring method for tunnel like engineering and apparatus thereof
  • Deformation moritoring method for tunnel like engineering and apparatus thereof

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Embodiment Construction

[0067] Below in conjunction with accompanying drawing and implementation example the present invention is further described:

[0068] 1. The device presses figure 1 , figure 2 , image 3 Production and installation.

[0069] 2. The structure of each part

[0070] 1. Displacement sensor

[0071] Displacement sensor 3 adopts WAP-30 rod-type sensor, which can directly output analog voltage signal. Connecting with data acquisition instrument 5, the analog signal can be converted into digital signal. The built-in circuit can directly output analog voltage; after conversion, it can be converted into actual displacement.

[0072] Measuring range: 0~60mm (unidirectional); Linearity: ±0.3%;

[0073] Sensitivity: 16.6mV / mm; Power supply: ±12VDC;

[0074] Working temperature: 0℃~70℃; Dimensions: 255mm×φ21.4mm

[0075] 2. Data acquisition instrument

[0076] Data acquisition instrument 5 selects AP-5921D / U60108-F.

[0077] The output signal of the rod-type displacement sensor 3 ...

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Abstract

The invention discloses tunnel series engineering deformation monitoring method and device. It relates to geotechnical engineering deformation monitoring which uses computer collecting and transmitting for monitoring data to process digitalization monitoring for underground hidden project hole body deformation. The device include deformation gauge, testing base, displacement transducer, data transmission line, data collecting machine, and PC computer. The invention can be used in rock mass deformation real time monitoring, geotechnical engineering deformation monitoring such as pit excavation, underground mine exploitation etc.

Description

technical field [0001] The invention relates to geotechnical engineering deformation monitoring, in particular to a deformation monitoring method and device for engineering deformation of tunnels (including tunnels, karst caves, shafts, etc.). Specifically, it is mainly aimed at the real-time monitoring of tunnel engineering deformation under complex construction conditions, highlighting the advantage that the measuring line can be disconnected and closed at any time during construction, and using the computer collection and transmission method of monitoring data to carry out underground concealed engineering caves Digital monitoring of deformation. Background technique [0002] Geotechnical deformation monitoring is an important part of geotechnical engineering. A variety of monitoring methods have been widely used in the deformation of tunnel projects such as mines, railways, highways, and water conservancy projects. With the increase of expressway, high-speed railway, en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/32
Inventor 孟庆山汪稔孔令伟罗强谭捍华胡明鉴
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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