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Protection device for monitoring and measuring prism in tunnel and method thereof

A protective device and a technology in the tunnel, which is applied in the direction of measuring devices, measuring instruments, surveying and navigation, etc., can solve the problems of increasing the procurement cost of measuring equipment, long measuring construction period, and affecting construction operations, so as to reduce measuring time and equipment investment Cost, reduced probability of prism damage, and easy operation

Pending Publication Date: 2021-03-26
CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD +1
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  • Application Information

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Problems solved by technology

In the tunnel monitoring and measurement, it is necessary to install a prism on the tunnel wall. The prism is fixed in the tunnel wall with expansion bolts. During the tunnel excavation process, the prism will be damaged due to blasting, and the measurement will affect the accuracy of its measurement value, and the prism will be severely damaged. It needs to be replaced again, and the measurement construction period is long, which will affect other construction operations and increase the purchase cost of measurement equipment

Method used

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  • Protection device for monitoring and measuring prism in tunnel and method thereof
  • Protection device for monitoring and measuring prism in tunnel and method thereof
  • Protection device for monitoring and measuring prism in tunnel and method thereof

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] The following combination Figure 1 to Figure 5 , the technical solution of the present invention will be described in detail with specific examples. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0038] Such as Figure 1~3 ...

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Abstract

The invention discloses a protection device for monitoring and measuring prism in tunnel and method thereof; the device comprises a stainless steel plate which is arranged in a semi-closed manner andcovers the prism; protective nets which are arranged on the front face and the bottom of the stainless steel plate, wherein the protective nets and the stainless steel plate form a closed cover-shapedstructure; a connecting part, by which the stainless steel plate is arranged on the tunnel wall, wherein the connecting part comprises a connecting piece disposed in the tunnel wall, and a connectingsteel plate which is bent into an L shape and comprises a first strip-shaped iron plate and a second strip-shaped iron plate, wherein the first strip-shaped iron plate is welded to the stainless steel plate, and the second strip-shaped iron plate is connected with the connecting piece. According to the invention, the monitoring and measuring prism in the tunnel can be effectively protected, and the prism damage probability is reduced.

Description

technical field [0001] The invention particularly relates to a protective device for monitoring and measuring a prism in a tunnel and a method thereof. Background technique [0002] During the construction of tunnel engineering, it is necessary to measure the horizontal angle, vertical angle, distance (slope distance, horizontal distance) and height difference of the working face, and at the same time, it is necessary to monitor the deformation during the construction process. In the tunnel monitoring and measurement, it is necessary to install a prism on the tunnel wall. The prism is fixed in the tunnel wall with expansion bolts. During the tunnel excavation process, the prism will be damaged due to blasting, and the measurement will affect the accuracy of its measurement value and severely damage the prism. It needs to be replaced again, and the measurement construction period is long, which will affect other construction operations and increase the purchase cost of measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 黄新徐明发袁建孙爱军赵大昭汪树生朱峰商科军
Owner CHINA RAILWAY SHANGHAI ENGINEERING BUREAU GROUP CO LTD
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