Laser automatic analysis system and method for shield underneath pass structure deformation

An automatic analysis and analysis system technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve problems such as inability to implement targeted measurement and monitoring, inability to measure structures, and monitoring the rate of change of settlement displacement.

Active Publication Date: 2020-04-24
北京住总集团有限责任公司
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the deformation measurement of structures is carried out according to certain human experience, such as how to monitor the maximum value of the settlement displacement of the structure and how to monitor the rate of change of the settlement displacement
Therefore, its measurement may have the following shortcomings: it is impossible to measure the deformation of structures in each construction stage, for example, the settlement and displacement laws of structures in each construction stage are different, and it cannot implement targeted measurement and monitoring

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
  • Laser automatic analysis system and method for shield underneath pass structure deformation
  • Laser automatic analysis system and method for shield underneath pass structure deformation
  • Laser automatic analysis system and method for shield underneath pass structure deformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment discloses a laser automatic analysis system for the deformation of a structure pierced by a shield, including a laser measurement unit 100 and an automatic analysis unit 200 .

[0039] The laser measurement unit 100 includes a laser transmitter, a wedge-shaped target plate 400, a laser receiver, and a measurement computing device. The measurement computing device is at least one of a data server and a service chip with computing functions. The wedge-shaped target plate 400 is made of materials capable of reflecting laser light. combined with figure 1 , the laser emitter emits laser light to the wedge-shaped target plate 400, and the laser light is reflected to the laser receiver through the wedge-shaped target plate 400 to complete a measurement. The wedge-shaped target plate 400 is fixedly installed on the structure. The reflective surface of the wedge-shaped target plate 400 becomes a wedge-shaped surface due to the setting of the reflection angle, ...

Embodiment 2

[0058] This embodiment may be a further improvement and / or supplement to Embodiment 1, and repeated content will not be repeated here. In the case of no conflict or contradiction, the whole and / or part of the content of the preferred implementations of other embodiments may serve as supplements to this embodiment.

[0059] Due to the impact of the tunnel direction and geological conditions, the deformation of the structure includes not only the settlement of the structure, but also the inclination of the structure, especially when the shield tunnels under the structure.

[0060] Preferably, the laser emitter of the laser measurement unit 100 can emit at least two parallel laser beams. At least two parallel laser beams are reflected to the laser receiver of the laser measurement unit 100 through at least two wedge-shaped target plates attached to different positions of the structure. At least two beams of parallel laser light correspond to at least two optical paths. For exam...

Embodiment 3

[0067] This embodiment may be a further improvement and / or supplement to Embodiments 1 and 2, and the repeated content will not be repeated. In the case of no conflict or contradiction, the whole and / or part of the content of the preferred implementations of other embodiments may serve as supplements to this embodiment.

[0068] In a shield tunnel construction project, especially in an urban tunnel construction project, there are many structures to be monitored, and the distance between the structures is generally small. Therefore, in order to enable the command center or the command sub-center to obtain on-site monitoring data, preferably, the laser measurement unit 100 used to measure the displacement of different structures is respectively connected to the automatic analysis unit 200 to form a local area network. For example, the measurement equipment of the laser measurement unit 100 and the automatic analysis unit 200 may be integrated into one computer. combined with ...

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 relates to a laser automatic analysis system for shield underneath pass structure deformation. The system comprises a laser measuring unit which can measure the displacement and / or the displacement change rate of a structure by utilizing a laser optical path difference, an automatic analysis unit which is used for comparing the displacement and / or the displacement change rate with corresponding set thresholds in a database respectively and outputting a comparison result, and a laser measuring unit which comprises a wedge-shaped target plate attached to the structure and used forreflecting laser. The wedge-shaped target plate is provided with at least two different reflection angles corresponding to different construction stages; the at least two different reflection angles respectively correspond to respective set thresholds, so that the automatic analysis unit can read the respective set thresholds according to the settlement rules of the structures in different construction stages and compare the respective set thresholds with the displacement and / or the displacement change rate; and the at least two different reflection angles can change the change rate of the laser path difference in different construction stages of a shield.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a laser automatic analysis system and method for deformation of structures passing under a shield. Background technique [0002] Shield tunneling is an important engineering technology for constructing municipal underground space. It uses a shield machine to excavate the shallow surface of the stratum to form a tunnel that can lay municipal pipelines, subways, etc. However, there are existing structures built on the surface of the city or below the stratum, such as buildings on the surface and tunnels built in the stratum. For the structures on the surface, the most important damage to the shield tunneling is the overall settlement due to the subsidence of the ground surface. Therefore, how to monitor the displacement of the ground structure during the tunneling of the shield is an urgent technical problem to be solved. [0003] The Chinese patent with publication ...

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 Applications(China)
IPC IPC(8): G01B11/16G01B11/02G01C5/00
CPCG01B11/02G01B11/16G01C5/00
Inventor 付春青田世文张功高玉春郝岩张爽毕欣
Owner 北京住总集团有限责任公司
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