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Argillaceous siltstone tunnel excavation deformation monitoring method

A deformation monitoring and siltstone technology, applied in the construction field of infrastructure engineering technology, can solve problems such as difficulty in hanging a ruler and a decrease in measurement accuracy.

Inactive Publication Date: 2020-08-21
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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Problems solved by technology

There will be more and more long-span tunnels built in the western mountainous area. The continuous increase of the span has made the traditional monitoring methods have obvious limitations, such as the difficulty of hanging rulers and the decline of measurement accuracy.

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  • Argillaceous siltstone tunnel excavation deformation monitoring method
  • Argillaceous siltstone tunnel excavation deformation monitoring method

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Embodiment Construction

[0012] The present invention is described in further detail below by embodiment, and embodiment is only used for illustrating the present invention, does not limit the scope of the present invention.

[0013] Construction technological process of the present invention:

[0014] Tunnel excavation→arrangement of deformation points→deformation observation→data recording calculation→result analysis:

[0015] see figure 1 A method for monitoring deformation of an argillaceous siltstone tunnel excavation is shown, comprising the following steps:

[0016] (1) Carry out tunnel excavation. After the tunnel excavation is completed, lay three anchor rods at the selected position. The anchor rods are firmly inserted into the rock, with the ends facing the direction of the cave entrance. The deformation points are arranged. The deformation monitoring points are replaced by reflective sheets and firmly pasted. on the anchor;

[0017] (2) The total station is erected at any position at an...

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Abstract

The invention belongs to the field of construction of infrastructure engineering technologies, and relates to an argillaceous siltstone tunnel excavation deformation monitoring method. The method comprises the following steps of: tunnel excavation, deformation point arrangement, deformation observation, data recording and calculation, and result analysis. In order to guarantee the safety of a tunnel during construction, deformation monitoring is smoothly carried out, the required operation is simple, the interference of a traditional monitoring mode on construction can be reduced, the investment of monitoring equipment and monitoring personnel can also be reduced, the cost is reduced, the monitoring efficiency is improved, and rapid and safe construction of engineering is ensured.

Description

technical field [0001] The invention belongs to the construction field of infrastructure engineering technology, and relates to a method for monitoring deformation of argillaceous siltstone tunnel excavation. Background technique [0002] The traditional tunnel deformation monitoring is generally carried out by using the steel ruler extensometer and the steel ruler hanging equal contact method. This method has the advantages of low cost, simple operation and adaptability to harsh construction environments. There will be more and more long-span tunnels built in the western mountainous area. The continuous increase of the span makes the traditional monitoring methods have obvious limitations, such as the difficulty of hanging rulers and the decrease of measurement accuracy. Contents of the invention [0003] In order to solve the problems of the prior art, the present invention provides a method for monitoring the deformation of an argillaceous siltstone tunnel excavation. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/32G01C15/00
CPCG01B21/32G01C15/00
Inventor 刘欢朱晓轲王伟奇王云鹏王凯
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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