Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Prediction method for urban rail transit shield project

A technology of urban rail transit and prediction method, applied in the field of shield tunneling safety construction, can solve problems such as personnel and economic loss, pipeline breakage, ground subsidence, etc., and achieve the effect of avoiding personnel and economic loss

Active Publication Date: 2012-06-13
GUANGZHOU METRO GRP CO LTD +1
View PDF7 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the construction process, the construction of the shield machine is likely to cause ground subsidence, damage to buildings (structures), breakage of pipelines, etc. due to unreasonable control of parameters, which in turn will cause great human and economic losses.
However, in the prior art, there has not been a scientific and reasonable early warning and prediction method for shield tunneling projects that can realize timely early warning and prediction of shield tunneling construction safety. The present invention is a technical improvement aimed at the problems existing in the prior art.

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
  • Prediction method for urban rail transit shield project
  • Prediction method for urban rail transit shield project
  • Prediction method for urban rail transit shield project

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Such as figure 1 Shown, the urban rail transit shield engineering early warning prediction method of the present invention, it comprises the following steps:

[0025] a. Establish a theoretical formula for predicting surface subsidence

[0026]

[0027] b. According to the measured data of the project, apply the above theoretical formula to calculate the surface settlement value;

[0028] c. Compare the calculated surface settlement value with the warning threshold. If the value exceeds the warning threshold, the system will automatically generate instructions to guide the safe construction of shield tunneling.

[0029] In step a above, establishing a theoretical formula for predicting surface subsidence includes the following steps:

[0030] a1. Using multiple linear regression analysis and prediction method to determine the regression model of the measured land surface subsidence

[0031] Y 实测地表沉降 =b 0 +b 1 ·Q 实际出土量 +b 2 ·Q 实际注浆量 +b 3 · υ 实际掘进速度 ,

[00...

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 a prediction method for an urban rail transit shield project, belonging to the technical field of the safe construction of the urban rail transit shield project. The prediction method comprises the following steps: a. building a theoretical formula for predicting ground settlement; b. according to the project actual-measurement data, applying the theoretical formula to calculate a ground settlement value; and c. comparing the calculated ground settlement value with an early-warning threshold value, automatically generating a command by a system if the ground settlement value exceeds the early-warning threshold value, and guiding the shield construction to be safely carried out. Compared with the prior art, the prediction method for an urban rail transit shield project has the beneficial effect that prediction method for an urban rail transit shield project is built on the basis of the project actual-measurement data, ground settlement caused by the shield construction can be early warned and processed in time so as to avoid personnel and economic loss caused by unreasonable shield tunneling and nip in the bud.

Description

technical field [0001] The invention relates to an early warning and prediction method for a shield tunneling project, which belongs to the technical field of shield tunneling safety construction, in particular to an early warning and prediction method for an urban rail transit shield tunneling project. Background technique [0002] At present, the construction methods used in the construction of urban rail transit projects mainly include open-cut method, mine method and shield method. Soil and excavation to realize the construction method of excavation. However, during the construction process, the construction of the shield machine is likely to cause ground subsidence, damage to buildings (structures), breakage of pipelines, etc. due to unreasonable control of parameters, which in turn will cause great human and economic losses. However, in the prior art, there is no scientific and reasonable early warning and prediction method for shield tunneling engineering that can re...

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): E02D1/08E21D9/06
Inventor 刘光武吕培印罗凤霞金淮廖翌棋李秋明
Owner GUANGZHOU METRO GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com