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

Shield tunnel lateral cross-over pile base construction method

A technology of shield tunneling and construction methods, which can be applied to tunnels, earthwork drilling, mining equipment, etc., and can solve problems affecting the safety of existing pile foundations and surrounding environmental facilities

Active Publication Date: 2008-02-20
CHINA RAILWAY NO 2 ENG GRP CO LTD
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Such close-up construction generally requires complex and strict auxiliary measures, and a little carelessness may seriously affect the safety of existing pile foundations and surrounding environmental facilities.

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
  • Shield tunnel lateral cross-over pile base construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] This embodiment is a construction method for the shield tunnel (Jiuting Station-Qibao Station) shield tunneling (Jiuting Station-Qibao Station) of the first phase project of Shanghai Rail Transit Line 9 that crosses the bridge pile of the first pier of the Zhongchun Road Overpass Bridge, and its technological process As shown in Figure 1, it specifically includes the following main steps:

[0041] First, engineering research:

[0042] Investigate the basic conditions of the pile foundation and the surrounding environment that the shield tunnel needs to pass through in the crossing section: the shield tunnel needs to pass through two spans of the Zhongchun Road overpass, which is very close to the bridge pile of one of the piers, only about 1.5m; according to The impact zoning standard proposed by Japan on the construction of tunnels close to existing structures, the tunnel construction area belongs to the strong impact area;

[0043] Second, the analogy and calculation...

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 construction method on the side-crossing pile foundation in the shield tunnel, the main procedures comprises: the investigation and research of the project, the analogy and the computational analysis on the side-crossing pile foundation, the study and decision of the construction plan, the preliminary shield parameters for the shield construction of the side-crossing pile foundation and so on; wherein, the preliminary shield parameters mainly comprises the earth pressure, the advancing speed, the injection amount of the mortar, the rectification amount and so on; during the shield construction process of the side-crossing pile foundation, a computer is adopted to realize the real-time monitoring on the displacement of the deep soil, the displacement of the pile foundation and so on. With the method provided by the invention, the construction of the crossing pile foundation can be finished safely and smoothly without any accessory method; also, the method has no distinct influence on the existing pile foundation at the near distance and the surrounding environment.

Description

technical field [0001] The invention relates to a construction method for a shield tunnel crossing a pile foundation laterally, and belongs to the technical field of tunnel shield proximity construction. Background technique [0002] Shield method tunnel construction is a construction method of underground excavation and construction of tunnels under the ground. Shield tunneling is used as a tool for excavating underground soil, supporting soil and assembling tunnel lining. One ring is excavated, one ring is assembled, and the cycle Work until the entire tunnel is complete. Compared with the traditional drilling and blasting method, the shield tunneling method has the advantages of high degree of automation, strong adaptability to different geological conditions, little impact on urban residents and buildings, good for controlling surface subsidence in weak strata, and high safety. . [0003] The first phase project of Shanghai Rail Transit Line 9 R413 shield tunnel (Jiuti...

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): E21D9/00E21D9/093
Inventor 李林陈强崔学忠
Owner CHINA RAILWAY NO 2 ENG 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