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

Karst rich water tunnel water-proof and drainage construction method

A technology for water-rich tunnels and construction methods, applied in drainage, tunnels, tunnel linings, etc., can solve problems such as difficult construction, potential safety hazards, and poor application, and achieve the effects of improving work efficiency, reducing project cost, and improving efficacy

Active Publication Date: 2018-06-29
CHINA RAILWAY ERJU 1ST ENG
View PDF6 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method for waterproofing and drainage of karst water-rich tunnels, so as to solve the problem that the construction of karst water-rich tunnels similar to Tieguishan Tunnel is difficult, the existing construction methods are not well applicable, and there are many potential safety hazards. question

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
  • Karst rich water tunnel water-proof and drainage construction method
  • Karst rich water tunnel water-proof and drainage construction method
  • Karst rich water tunnel water-proof and drainage construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Waterproof and Drainage Construction of Karst Water-rich Tunnel

[0033] 1.1 Surface treatment of surrounding rock or primary support

[0034] Before laying the waterproof layer, the base surface (primary support surface) should be inspected for water leakage, exposed protrusions and surface unevenness.

[0035] 1.1.1 Use grouting to block water or drain blind pipes, drainage boards, etc. to introduce water into the side ditch at the leaking water, so as to keep the base surface without obvious water leakage.

[0036] 1.1.2 For the protruding part of the anchor rod head, steel pipe head, steel bar head, etc. exposed to the base surface, cut it off first, then use a hammer to rivet it flat, and apply mortar.

[0037] 1.2 Drainage blind pipe setting

[0038] The back of the secondary lining waterproof board of the whole tunnel is provided with a circular φ50 single-wall perforated corrugated pipe (wrapped in non-woven fabric) drainage blind pipe, and a φ80 single-wall p...

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 karst rich water tunnel water-proof and drainage construction method. By adopting the principle of "combination of prevention, drainage, interception and blockage, adaptationto local conditions and comprehensive treatment" and a water-proof method of combining water-proof with drainage is introduced to ensure the realization of project safety and quality objectives. Thekarst rich water tunnel water-proof and drainage construction method solves the problems that the difficulty of construction of a karst rich water tunnel such as an iron helmet mountain is high, the existing construction method cannot be applied well, and many potential safety hazards exist. The invention belongs to the technical field of tunnel construction.

Description

technical field [0001] The invention relates to a construction method for waterproofing and drainage of karst water-rich tunnels, belonging to the field of tunnel construction. Background technique [0002] The Tieguishan Tunnel is located in the peak valley of the Yunnan-Guizhou Plateau. The line passes through the mountain body at a height of 1140-1490m, and the maximum buried depth of the tunnel is 380m. Water volume 69408m 3 / sky. The secondary lining arch, side wall and inverted arch of the whole tunnel are made of waterproof concrete, and the concrete impermeability grade is P12. The tunnel is a typical karst water-rich tunnel. To ensure the construction quality of waterproofing and drainage, and to ensure that the secondary lining does not leak water, there is no construction technology similar to tunnels at home and abroad, and there is no construction method for reference, so the construction is extremely difficult. Contents of the invention [0003] The purpo...

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): E21D11/38E21D11/10E21F16/02
CPCE21D11/105E21D11/381E21F16/02
Inventor 谢方成耿开亮易峰何复生周顺畅甑小辉邹伟徐义涛何宇航张阳秦慧蓉
Owner CHINA RAILWAY ERJU 1ST ENG
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