Method used in tunnel engineering for exactly measuring internal displacement of wall rock

A technology of tunnel engineering and tunnel center line, which is applied in measurement devices, optical devices, instruments, etc., can solve problems such as errors and achieve the effect of improving accuracy

Active Publication Date: 2013-06-26
CHINA RAILWAY TUNNEL GROUP CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, using half of the clearance convergence value as the displacement value at the orifice reading device to calculate the internal displacement value of the surrounding rock will cause a large error

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method used in tunnel engineering for exactly measuring internal displacement of wall rock
  • Method used in tunnel engineering for exactly measuring internal displacement of wall rock
  • Method used in tunnel engineering for exactly measuring internal displacement of wall rock

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention is described in conjunction with accompanying drawing and specific embodiment:

[0023] A method for accurately measuring the internal displacement of surrounding rock in tunnel engineering, the specific steps are as follows:

[0024] a. If figure 1 As shown, a multi-point displacement meter is installed at the position where the internal displacement of the surrounding rock needs to be measured, that is, the anchor head 1 of each measuring point of the multi-point displacement meter is buried in the borehole 4, and is closely connected with the hole wall of the borehole, and the rock formation moves It can drive the anchor heads of each measuring point to move together, and the displacement state of the measuring point is led to the outside of the rock mass through the measuring steel drill 2 fixed with it, and is measured at the orifice measuring and reading device; the surrounding rock is measured by multi-point displacement measurement Interna...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the technique of measuring the internal displacement of the surrounding rock in tunnel engineering, and proposes a method for accurately measuring the internal displacement of the surrounding rock in tunnel engineering. The displacement value inside the surrounding rock is obtained by using a multi-point displacement meter, and the total-station electronic rapid measurement method is used to obtain the internal displacement value of the surrounding rock. instrument, measure the horizontal angle between the multi-point displacement meter orifice reading device and the tunnel center line, measure the horizontal distance between the multi-point displacement meter orifice reading device and the total station; get the multi-point displacement meter orifice reading device Relative to the displacement value of the tunnel center line; when calculating the internal displacement of the surrounding rock, the measured value of the multi-point displacement meter is used to subtract the displacement value at the reading device of the multi-point displacement meter to obtain an accurate internal displacement value of the surrounding rock, which improves the Accuracy of internal displacement measurement of surrounding rock in tunnel engineering.

Description

Technical field [0001] The present invention belongs to the measurement technology of the internal displacement of the surrounding rock, which mainly proposes a method for accurately measure the internal displacement of the surrounding rock in the tunnel engineering. Background technique [0002] The construction of the tunnel engineering will disturb the surrounding rocks. The surrounding rock is in the tunnel engineering, and the surrounding rock body that changes the stress state due to the affected by the excavation.The stress state inside the surrounding rock will change and adjust, and the changes and adjustments of the stress state will bring a displacement inside the surrounding rock.This displacement may affect the structure of the tunnel, so it is necessary to grasp the displacement inside the surrounding rock in real time during the construction of the tunnel. [0003] At present, the method of obtaining the internal displacement of the surrounding rock is to install a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
Inventor 邹翀刘洪震洪开荣高军高攀张文新李沿宗王光辉蒋永强王菀
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap