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

Construction method of combined protection structure of existing tunnel

A technology for existing tunnels and protective structures, applied in soil protection, infrastructure engineering, protective devices, etc., to ensure the overall stability of the structure, restrain the floating of subway tunnel structures, and ensure safety and stability

Active Publication Date: 2022-07-29
中铁建设集团南方工程有限公司 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and to provide a construction method for a combined protection structure of an existing tunnel; The problem of rapid progress of excavation construction

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
  • Construction method of combined protection structure of existing tunnel
  • Construction method of combined protection structure of existing tunnel
  • Construction method of combined protection structure of existing tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The technical solutions in the present embodiment of the present invention will be described clearly and completely below with reference to the accompanying drawings in the present embodiment of the present invention. Obviously, the described embodiment is an embodiment of the present invention, but not all of them. this embodiment. Based on the present embodiment of the present invention, all other present embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0042] Please refer to Figure 1 to Figure 11 , The present invention provides a construction method of a combined protection structure of an existing tunnel.

[0043] In this embodiment, the excavation depth of the foundation pit of the main part of the social corridor to be built is relatively deep, and the deepest is about 8-10m. During the excavation of the corridor passage, the covering soil above the operating subway wil...

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 of a combined protection structure of an existing tunnel. The construction method comprises the following steps that a top beam and a straining beam are poured above existing fender posts on the two sides of the existing tunnel correspondingly; a grouting reinforcement area is poured on the inner side of the existing fender post; a plurality of vertical shafts are constructed in the grouting reinforcement area to the top plate of the existing tunnel, and coping piers are poured out respectively; uplift piles are constructed on the outer sides of the existing fender posts correspondingly; the outer side of the existing fender post is excavated to the position below the channel foundation pit along the subway in a segmented mode, and connecting beams are poured respectively; channel foundation pits are symmetrically excavated on the two sides of the existing fender posts in a segmented and partitioned mode, and a channel structure is constructed in time and ballasting is carried out; foundation pits between the existing fender posts are excavated in a segmented and partitioned mode, and the existing fender posts are chiseled away; a channel structure is constructed in time and connected with channels on the two sides, and ballasting is conducted according to monitoring data; according to the method, the stability of the existing tunnel is guaranteed, and rapid advancing of earth excavation construction on the upper portion of the subway can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method of a combined protection structure of an existing tunnel. Background technique [0002] With the rapid development of the city, the construction of projects along and around the subway is increasing day by day. It is common to need to build buildings on the existing tunnels, and the earthwork excavation on the upper part of the subway is likely to cause great safety risks to the existing tunnels. How to not only ensure the safety and stability of the existing tunnels in operation, but also ensure the rapid progress of the earthwork excavation construction in the upper part of the subway is an urgent problem to be solved. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and to provide a construction method for a combined protection structure of an existing tunne...

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): E02D31/00E02D31/08E02D17/04E02D3/12E02D15/02
CPCE02D31/00E02D31/08E02D17/04E02D3/12E02D15/02E02D2250/003Y02E10/20
Inventor 张世鑫范立军李延昌张明明康胜国耿彬马强赵忠诚高亭刘世昌
Owner 中铁建设集团南方工程有限公司
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