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

Construction method for ultra-shallow-buried underground excavation subway station construction through flat-roof and upright-wall pipe curtain structure

A construction method and technology for subway stations, which are used in underground chambers, earth-moving drilling, wellbore lining, etc., can solve the problems of slow construction progress, weak lateral stiffness and bearing capacity of pipe curtains, and low space utilization, and increase the horizontal The effect of bearing capacity, increasing space utilization, and cost saving

Inactive Publication Date: 2017-08-29
THE FIFTH ENG CO LTD OF CHINA TIESIJU CIVIL ENG GRP +1
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the adjacent steel pipes in the traditional pipe curtain structure are only connected by locks, the lateral stiffness and bearing capacity of the overall pipe curtain are relatively weak. Stability, resulting in slower construction progress
In addition, the transverse section is mostly an arched structure, and the space utilization rate is low

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 for ultra-shallow-buried underground excavation subway station construction through flat-roof and upright-wall pipe curtain structure
  • Construction method for ultra-shallow-buried underground excavation subway station construction through flat-roof and upright-wall pipe curtain structure
  • Construction method for ultra-shallow-buried underground excavation subway station construction through flat-roof and upright-wall pipe curtain structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] The invention provides a construction method for constructing an ultra-shallow underground excavation subway station, which adopts a flat roof and straight wall pipe curtain structure, and specifically includes the following construction steps:

[0043] Step 1: Construct enclosure piles 2 around the working well 1. After the enclosure piles reach strength, excavate the working well and build a pipe jacking construction platform. See figure 1 .

[0044] Step 2: Process the construction steel pipe 3 in the processing plant, weld the flange plate 4 at the design position on both sides of the steel pipe, and open the reserved bolt hole and reserved groove 6 at the design position, see figure 2 .

[0045] Step 3: Use the jacking method to construct the No. 1 to No. 24 top steel pipes and No. 25 and No. 34 side steel pipes in the undergrou...

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 provides a construction method for ultra-shallow-buried underground excavation subway station construction through a flat-roof and upright-wall pipe curtain structure. Large-diameter steel pipes are densely pushed into horizontal and longitudinal positions correspondingly, every two adjacent steel pipes are connected through high-strength bolts and flange plates, and then concrete is poured in the steel pipes and among the steel pipes; and then in the position, below the side edge steel pipes, of the lower portion of a pilot tunnel, poured-in-advance reinforced concrete walls and the side edge steel pipes are connected to enable the reinforced concrete walls to serve as a foundation bed of the overall pipe curtain structure. When station main body construction is not conducted, a large-rigidity support system is formed; compared with a traditional pipe curtain construction method, owing to the fact that transverse bearing force and rigidity of the overall pipe curtain structure are increased / improved, large-cross-section excavation can be achieved; in the excavation process, excessive temporary support systems do not need to erected, the construction period is shortened, and cost is saved; and the support system is the flat-roof and upright-wall structure, and the space utilization ratio is increased.

Description

technical field [0001] The invention relates to a flat-roofed straight-wall pipe-curtain support system formed after pouring concrete with large-diameter dense steel pipes, and a construction method for constructing urban ultra-shallow underground excavation subway stations under the new pipe-curtain support system, belonging to the field of tunnels and underground engineering . Background technique [0002] The pipe curtain construction method was first used in Japan to build a passageway project across the railway. The first use of the pipe curtain construction method in China was in the construction of an underground passage in a city in Hong Kong. After many years of domestic research and successful implementation in engineering, the pipe curtain construction method has matured. However, since the adjacent steel pipes in the traditional pipe curtain structure are only connected by locks, the lateral stiffness and bearing capacity of the overall pipe curtain are relati...

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): E21D13/02E21D11/10E21D11/38
CPCE21D13/00E21D11/10E21D11/38
Inventor 汪家雷王圣涛赵文徐松苗夏云朋张效铭李慎刚刘恒贾鹏蛟
Owner THE FIFTH ENG CO LTD OF CHINA TIESIJU CIVIL ENG GRP
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