Application system for monitoring stress deformation of tunnel

A stress-deformation and application system technology, applied in the direction of measuring force, measuring device, electromagnetic measuring device, etc., can solve the problems of inability to monitor tunnel stress and deformation as a whole, complex equipment installation, etc., and achieve simple installation and implementation, safe operation guarantee, and test accuracy high effect

Inactive Publication Date: 2009-09-23
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose an application system for monitoring tunnel stress and deformation, which solves the problems that the tunnel s

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
  • Application system for monitoring stress deformation of tunnel
  • Application system for monitoring stress deformation of tunnel
  • Application system for monitoring stress deformation of tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0031] Due to the complex environment and changing conditions in the tunnels of railways, subways, highways, etc., and the tunnels are often relatively long, the method of installing test sensors at individual points cannot accurately monitor the overall changes in the tunnel. Since the current output of the eddy current sensor is a constant current standard signal of 4-20 mA, it can realize long-distance transmission within a certain distance; The magnitude of the stress-strain change can be obtained by measuring the magnitude of the current change. Based on this idea, the present invention arranges eddy current sensor deformation acquisition units within a set distance interval to form an array of eddy current senso...

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 discloses an application system for monitoring stress deformation of a tunnel, belonging to the tunnel safety monitoring technical field. The technical proposal of the invention is as follows: the application system comprises an eddy current sensor deformation acquisition cell array, a field signal acquisition and transmission unit, a data acquisition and processing server, and a data query and display terminal; the eddy current sensor deformation acquisition cell array comprises eddy current sensor deformation acquisition cells; each eddy current sensor deformation acquisition cell is connected with the field signal acquisition and transmission unit by an ordinary electric wire; the field signal acquisition and transmission unit is connected with the data acquisition and processing server by a CAN bus or an Ethernet; the data acquisition and processing server is connected with the data query and display terminal by the Ethernet. The application system provided by the invention has high testing precision and can monitor the integrated stress deformation of the tunnel, thus providing effective safeguard for the safe running of the tunnel.

Description

technical field [0001] The invention belongs to the technical field of tunnel safety monitoring, in particular to an application system for monitoring stress and deformation of tunnels. Background technique [0002] With the continuous development of tunnel traffic such as high-speed railways, subways, and tunnel roads, tunnel safety monitoring has become an indispensable factor to ensure the safe operation of tunnels. Especially in the high-speed railway operation system, the tunnel safety monitoring system has been integrated into the signal integration system such as the vehicle control signal of the signal system. The decisive index for the safety of the tunnel is the deformation state of the tunnel after being stressed, especially the deformation of the tunnel caused by the pressure from the top to the bottom is the biggest threat to the safety of the tunnel. For tunnels passing through rock formations, the main stress is the deformation caused by the pressure of the r...

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
IPC IPC(8): G01B7/16G01L1/00
Inventor 张智祥
Owner BEIJING JIAXUN FEIHONG ELECTRIC 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