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

H-shaped waterproof curtain construction process

A construction process and technology of water-stop curtains, which are applied in basic structure engineering, construction, sheet pile walls, etc., can solve the problems that the curtain construction effect cannot achieve the expected purpose, affect the tunnel construction progress, and have high construction safety risks, so as to enhance safety and stability. performance, reduce construction interference, and have a wide working surface

Active Publication Date: 2010-07-21
THE FIFTH ENG CO LTD OF CHINA TIESIJU CIVIL ENG GRP
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advanced curtain grouting and water-stopping method in the tunnel is relatively traditional. The existing problems are 1. The working environment in the tunnel is poor; 2. Due to the limited working surface of the tunnel construction, the tunnel must stop excavation during the curtain construction, which affects the progress of the tunnel construction; 3. The working surface is narrow, the construction safety risk is high, and the curtain construction effect generally cannot achieve the expected purpose

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
  • H-shaped waterproof curtain construction process
  • H-shaped waterproof curtain construction process
  • H-shaped waterproof curtain construction process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Technical solutions

[0035] 1. Process method:

[0036] (1) Set up two cut-off walls 2.5m away from both sides of the outer side wall of the tunnel, and set up two rows of occlusal rotary grouting piles or mixing piles for water cut-off on the upper soil layer or sand layer (i. In the section where the rock is directly in contact with the rock, double rows of Φ500mm cement mixing piles are used for the soft soil layer, and the spacing is arranged at a distance of 400mm; The spacing is arranged according to 500mm), and a horizontal double-row occlusal rotary grouting pile or mixing pile is installed between the two cut-off walls at intervals of 100m to 150m along the longitudinal direction of the tunnel (the longitudinal spacing can be adjusted appropriately according to the conditions of the construction site and the geological and hydrological conditions) , to form a closed water cut-off curtain wall, which separates the influence area of ​​the tunnel from the surrou...

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 relates to an H-shaped waterproof curtain construction process. The process comprises the following steps: installing two cutoff walls 2-3m away from the both sides of the outside of a tunnel side wall, installing two rows of staggered jet grouting piles or mixing piles on an upper soil layer or sand layer to stop water and installing a transverse two-row staggered jet grouting piles or mixing piles between the two cutoff walls every 100-150m along the tunnel to form a closed waterproof curtain wall. Therefore, the construction technical problem of the waterproof curtain and advance pre-reinforcement for underground engineerings such as shallow tunnels and subways can be solved. The process is characterized by simple construction process, wide working face and fast construction pace, the tunnel deformation and ground subsidence are effectively controlled and the safety and stability of the tunnel are increased. The process can be widely used for the construction of waterproof curtain and advance pre-reinforcement for underground engineerings such as shallow tunnels and subways.

Description

technical field [0001] The invention relates to a construction technology of an H-shaped water-stop curtain, in particular to a construction technology for water-stop curtains and advanced pre-reinforcement applied in shallow buried tunnels, subways and other underground projects. technical background [0002] In general tunnel construction and medium underground engineering construction, water stop measures generally implement advanced curtain grouting in the cave, that is, stop tunnel excavation, and grouting is performed on the excavation surface. The advanced curtain grouting and water-stopping method in the tunnel is relatively traditional, and the existing problems are 1. The working environment in the tunnel is poor; 2. Due to the limited working surface of the tunnel construction, the tunnel must stop excavation during the curtain construction, which affects the progress of the tunnel construction; 3. The working surface is narrow, the construction safety risk is hig...

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): E02D5/18E02D5/46E02D19/18
Inventor 王圣涛杨铭刘庆丰涂碧海付国才黄龙光鲍俊捷
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