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

CRD construction method tunnel waterproof construction method

A construction method and tunnel technology, which is applied in tunnels, tunnel linings, earthwork drilling, etc., can solve the problems of large support settlement deformation, large investment, and long period of removing temporary supports, so as to reduce construction costs and shorten construction periods Effect

Inactive Publication Date: 2014-03-19
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
View PDF6 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It takes a long period to remove the temporary support, and the investment is large, and the settlement deformation of the initial support is relatively large during the lining construction process

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
  • CRD construction method tunnel waterproof construction method
  • CRD construction method tunnel waterproof construction method
  • CRD construction method tunnel waterproof construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as figure 1 , 3 , Shown in 5: a kind of CRD construction method tunnel waterproof construction method, comprises the following steps:

[0022] ① After the initial support system is stabilized, deformation monitoring points shall be arranged on the vault and side walls to monitor the settlement deformation during construction;

[0023] ② After the concrete of the middle partition within the scope of the lining floor is broken, the I-beam 1 of the middle partition is removed by removing one by one;

[0024] ③Grind the remaining I-beams that have not been removed, and smooth and harden them with cement mortar within 500mm around the I-beams to form a hardened base surface 18, ensuring that the I-beams and hardened base surfaces are smooth and free of residue, dry and water-free;

[0025] ④Apply rubberized asphalt 15 on the unremoved I-beam 10 and the hardened base surface, lay waterproof board 17 on the asphalt and paste it tightly with rubberized asphalt, and weld...

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

A CRD construction method tunnel waterproof construction method includes the following steps that after a primary support system is stabilized, deformation monitoring points are arranged on an arch crown and side walls; CRD I-steel is demounted every other within the range of a lining bottom plate and a lining top plate; the residual non-demounted I-steel is ground, and the periphery of the I-steel is floated with cement mortar and hardened; the non-demounted I-steel and the hardened base surface are coated with rubber bitumen and paved with waterproof plates, the surfaces of the waterproof plates on the periphery of the I-steel are coated with a layer of rubber bitumen, and eventually a water stop flange is welded to each I-steel, and grouting systems are arranged on the two sides of the I-steel; bottom plate lining construction and top plate lining construction are conducted, after the top plate lining construction is conducted, all residual temporary supports are demounted; temporary inverted arch concrete and the I-steel within the range of the bottom plate side walls are broken and demounted; bottom plate side wall ECB waterproof plate pavement and lining construction are conducted. The phenomenon of settlement deformation of primary supports in the lining process can be effectively controlled, the construction period is shortened, and construction investment is reduced.

Description

Technical field: [0001] The invention belongs to a building construction method, in particular to a CRD construction method tunnel waterproof construction method. Background technique: [0002] At present, the CRD construction method is often used in the construction of large-section, weak surrounding rock and shallow-buried tunnels at home and abroad. During the tunnel lining construction process of the CRD construction method, the removal of all temporary supports has a high risk, complicated procedures, and slow construction speed. The existing construction method is to remove all temporary supports 11 after the initial support is closed into a ring, and then carry out waterproofing construction 12 and lining construction 13 (such as figure 2 ). It takes a long period to remove the temporary support, and the investment is large, and the settlement deformation of the initial support is relatively large during the lining construction process. Invention content: [0003...

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): E21D11/38E21D11/10
Inventor 曲建生申晓明宋战平
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU 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