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

Tunnel waterproof and drainage construction technology

A construction technology, waterproof and drainage technology, applied in tunnels, drainage, tunnel lining and other directions, can solve problems such as increased safety hazards, increased tunnel fog, slippery ground, etc., to improve the anti-leakage performance and ensure the waterproof effect.

Inactive Publication Date: 2020-02-04
CHINA RAILWAY 18TH BUREAU GRP CO LTD +1
View PDF10 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water leakage problem in the tunnel will not only weaken the strength of the surrounding weak surrounding rock, but also cause the expansive surrounding rock to be in a state of expansion, which poses a threat to the safety of the tunnel structure. , increasing security risks

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
  • Tunnel waterproof and drainage construction technology
  • Tunnel waterproof and drainage construction technology
  • Tunnel waterproof and drainage construction technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0046] Such as Figure 1-11 As shown, a tunnel waterproofing and drainage construction process includes setting expansion water-stop strips on the entire section of the secondary lining construction joints of the tunnel, and setting rubber seals on the entire section of the settlement joints (set at the change of surrounding rock grade and at a distance of 50m in the V-level surrounding rock section). Water belts and back-mounted waterstops must be installed at construction joints and settlement joints. Longitudinal drainage pipes are arranged on both sides of the arch foot, circular blind pipes are arranged behind the secondary lining, geotextiles and waterproof boards are fully paved, and waterproof concrete with an impermeability level ≥ S8 is used for the secondary lining.

[0047] 1. Layout of tunnel drainage system

[0048] (1) The waterproof and...

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 tunnel waterproof and drainage construction technology. The tunnel waterproof and drainage construction technology comprises the following steps of arranging an expansion water-stop strip on the whole section of a secondary lining construction seam of a tunnel, arranging a rubber water-stop band on the whole section of a settlement seam, arranging back-mounted water-stopbands at both the construction seam and the settlement seam, arranging longitudinal drainage blind pipes on the two sides of an arch foot, arranging a circumferential drainage blind pipe at the back of a secondary lining, and fully paving geotextile and waterproof boards, wherein the secondary lining adopts waterproof concrete with an impermeability grade of greater than or equal to S8 for the secondary lining. With the adoption of the tunnel waterproof and drainage construction technology, the waterproof effect of the construction seam can be ensured, and the anti-leakage performance can be improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a tunnel waterproof and drainage construction technology. Background technique [0002] In the process of tunnel construction, waterproof and drainage works are an extremely important link and a prerequisite for ensuring the normal operation of the tunnel. Tunnel waterproofing and drainage is usually based on the self-defense of concrete structures. A flexible waterproof layer is added to the water-facing surface to strengthen the waterproof system established by dredging pipelines. [0003] The tunnel construction environment is easily affected by natural environmental factors such as rainfall and groundwater, resulting in leakage problems. The water leakage problem in the tunnel will not only weaken the strength of the surrounding soft surrounding rock, but also cause the expansive surrounding rock to be in a state of expansion, which poses a threat to the safety o...

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): E21D11/38E21F16/02
CPCE21D11/381E21F16/02
Inventor 白安生
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD
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