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Remote and precise tunnel surface horizontal displacement measurement device and method

A technology of horizontal displacement and precision measurement, which is applied in the directions of measuring device, line-of-sight measurement, measuring distance, etc. It can solve problems such as the difficulty of laser light source construction, and achieve the effect of optimizing measurement and ensuring accuracy

Inactive Publication Date: 2019-08-20
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a device and method for remotely and precisely measuring the horizontal displacement of the tunnel surface, so as to solve the problem that the laser light source needs to be placed directly on the tunnel surface to be measured, which brings difficulty to the construction

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  • Remote and precise tunnel surface horizontal displacement measurement device and method
  • Remote and precise tunnel surface horizontal displacement measurement device and method

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] The invention provides a device and method for remote and precise measurement of the horizontal displacement of the tunnel surface, such as figure 1 As shown, the device sequentially includes a laser light source, a first reflector, a second reflector, a focusing lens and a CCD along the optical path, wherein:

[0022] The first reflector and the second reflector are 45° reflectors, the first reflector receives the horizontal light emitted by the laser light source, changes the horizontal light by 90° clockwise on the horizontal plane and reflects it to the second reflector , the second reflector changes the horizontal light by 90° clockwise on the horizontal plane again and reflects it to the focusing lens. imagi...

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Abstract

The invention discloses a remote and precise tunnel surface horizontal displacement measurement device and method. The device comprises a laser source, a first mirror, a second mirror, a focusing lensand a charge coupled device in sequence along an optical path, wherein the first mirror and the second mirror are 45-DEG mirrors; the first mirror receives horizontal light emitted by the laser source, changes the horizontal light for 90 DEG along a clockwise direction in a horizontal plane and reflects the light to the second mirror; the second mirror changes the horizontal light for 90 DEG again along the clockwise direction in the horizontal plane and reflects the light to the focusing lens; and the focusing lens focuses the horizontal light to the receiving screen of the charge coupled device, a light spot is obtained on the receiving screen, and imaging on the screen is realized. The remote and precise tunnel surface horizontal displacement measurement device can precisely measure the displacement of the tunnel in a horizontal direction, and the measurement difficulty is reduced.

Description

technical field [0001] The invention belongs to the field of optical precision measurement, in particular to a device and method for long-distance and precise measurement of the horizontal displacement of the tunnel surface. Background technique [0002] In recent years, with the rapid development of infrastructure construction such as high-speed and high-speed rail, my country's tunnel construction has entered a period of rapid development, and various tunnel accidents have also occurred frequently. The conditions of engineering geology and hydrogeology of the mountain that the tunnel crosses are complex and changeable. The existing tunnels are limited by the design and construction technical conditions during the construction period. Health problems in tunnels such as damage, tunnel water leakage, tunnel freezing damage, and large deformation of surrounding rock have become increasingly prominent. How to conduct health diagnosis and disease and disaster prevention and cont...

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Application Information

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IPC IPC(8): G01C3/00G01B11/02
CPCG01B11/02G01C3/00
Inventor 杨盈莹林学春杨松许本有张勇
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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