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

Shield ground compartment opening method

A ground and shield technology, applied in the direction of earth drilling, mining equipment, tunnels, etc., can solve the problems of low safety factor, large body injury, casualties, etc., to ensure safety, prevent water and soil influx, and save construction period Effect

Active Publication Date: 2013-06-05
CHINA RAILWAY NO 3 GRP CO LTD
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has many procedures, long construction period, and high cost. At the same time, people working in a high-pressure environment will cause great harm to the body.

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 ground compartment opening method
  • Shield ground compartment opening method
  • Shield ground compartment opening method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The specific embodiments of the present invention will be further described with reference to the drawings.

[0026] Shield ground opening method, the steps are as follows:

[0027] (1) For the construction stratum, pre-calculate the wear amount of the cutter head and the position where the tool needs to be changed, that is, the preset position of the warehouse;

[0028] (2) Use mixing piles or jet grouting piles in advance at the preset opening position to construct the outer wall according to the set opening outer wall size;

[0029] (3) Use double-liquid grouting to seal the bottom to form a box with an open upper end, and pump groundwater from the box formed by mixing piles and grouting;

[0030] (4) The shield continues to advance through the wall formed by the mixing pile, and the head enters the box formed by the mixing pile and grouting, and the gap between the shield and the wall is blocked by grouting with the advance grouting hole of the shield;

[0031] (5) Use a r...

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 shield construction fields such as metro shield tunnels and hydraulic engineering shield tunnels, particularly relates to a shield ground compartment opening method, and solves the problems of the existing passive compartment opening methods. The method includes: presetting a compartment opening position; building a peripheral wall; grouting with double slurry for bottom sealing; advancing shield continuously to penetrate the wall formed by mixing piles; drilling a hole on the ground to a cutter head of the shield; placing a seal gate type steel protective cylinder; and opening the seal gate for maintenance or replacement. The method can be performed along with shield construction, shield advancing is unaffected, and construction period is shortened greatly. The method is performed under normal pressure, so that safety of constructers is guaranteed. The method is clear in process, simple, practicable, easy to operate and popularize, outstanding in economical and social benefits in the field of tunnel construction, and worthy of popularization.

Description

technical field [0001] The invention belongs to the field of shield construction such as subway shield tunnels and water conservancy project shield tunnels, and in particular relates to a shield tunnel opening method on the ground. Background technique [0002] As an advanced automatic machine for tunnel excavation, the shield machine has been widely used after being introduced into China. At present, the tunnel construction of most subway projects and civil engineering projects such as water conservancy cannot do without the participation of the shield machine. During the shield construction process, especially In the process of interval construction, due to geological conditions, mechanical failures and other reasons, it is necessary to open the warehouse to replace parts or perform maintenance operations, so the rapid and safe opening of the warehouse has become one of the main risk sources of the current shield construction, and the use of shield tunnels is becoming more ...

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): E21D9/06
Inventor 辛振省
Owner CHINA RAILWAY NO 3 GRP CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com