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

Permanent and temporary combined anti-freezing drainage structure and method for high altitude severe cold rich water tunnel

A technology that combines water-rich tunnels with permanent impending applications in drainage, earthwork drilling, safety devices, etc. It can solve problems such as frost heave and unsmooth drainage systems, so as to ensure operational safety, eliminate problems that cannot be closed in time, and speed up water flow. The effect of velocity

Inactive Publication Date: 2014-01-29
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF6 Cites 12 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 an anti-freeze drainage structure and method for permanent combination of high-altitude severe cold and rich water tunnels, so as to solve the problem that the drainage system of high-altitude severe cold and rich water long tunnels is not smooth in winter, and the accumulation of water behind the lining causes frost heave and affects the use. The problem

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
  • Permanent and temporary combined anti-freezing drainage structure and method for high altitude severe cold rich water tunnel
  • Permanent and temporary combined anti-freezing drainage structure and method for high altitude severe cold rich water tunnel
  • Permanent and temporary combined anti-freezing drainage structure and method for high altitude severe cold rich water tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] see Figure 1 to Figure 6 As shown, the present invention is an antifreeze and drainage structure combined with permanent presence of high-altitude severe cold and water-rich tunnels. The following waterproof and drainage structures are adopted to solve the problem of frost heave caused by water accumulation behind the lining of high-altitude severe cold and water-rich tunnels due to unsmooth drainage system and affect the use of the problem. High altitude generally refers to areas with an average altitude above 3000m, and severe cold generally refers to the coldest month in winter with an average temperature below -15°C.

[0036] 1. The tunnel is divided into the entrance section and the deep buried section according to the buried depth. The tunnel entrance section is 300m inward from the tunnel entrance; the rest is the tunnel body section, such as figure 1 Sections 1-2 in the middle are the entrance section, and sections 2-4 are the body section; figure 1 Only hal...

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 permanent and temporary combined anti-freezing drainage structure and method for a high altitude severe cold rich water tunnel. A parallel pilot pit is arranged on the side lower than a tunnel cavity body section and communicated with the tunnel through a transverse channel. Full section grouting is conducted on a tunnel cavity opening section full section to form a superfine cement full section grouting blocking solidification ring. Two inclined drainage holes are formed in the outside of the blocking solidification ring at the positions lower than two sides of a cavity opening. At least one end of the parallel pilot pit is communicated with the outer portion of the tunnel through a drainage cavity arranged in an inclined mode. According to the tunnel running wind flowing characteristic of high altitude severe cold zones, the parallel pilot pit which is excavated in advance in a construction period and lower than the main line tunnel position is utilized to achieve main line tunnel bottom embedded heat insulation transverse drainage, and a tunnel vertical reversed V-shaped drainage pipe is matched to improve drainage of tunnel surrounding rock water. Smooth drainage of the high altitude severe cold rich water tunnel is achieved by means of the small cavity diameter and the large-slope drainage hole which are formed through a directional drilling and hole expanding technology by water in the tunnel and matched with the middle parallel pilot pit, and safety and stability of the tunnel structure are ensured.

Description

【Technical field】 [0001] The invention relates to the technical field of tunnels and underground engineering in the civil engineering industry, in particular to an antifreeze drainage structure and method for high-altitude severe cold water-rich tunnels. 【Background technique】 [0002] The investigation of the use of railway and highway tunnels in cold regions in my country, Europe, America, Japan and other countries shows that the main difficulty in building tunnels in cold regions is the antifreeze and antifreeze problem of tunnels. According to recent statistics from the Japan Highway Corporation and the Japan Railway Comprehensive Technology Research Institute, 1,100 of the 3,800 railway tunnels in Japan are endangered to driving safety during winter operations due to freezing damage; among road tunnels, only 302 large tunnels in Hokkaido There are 104 road tunnels with serious frost damage. To eliminate side wall ice and arch icicles, as one of the remediation measures,...

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): E21F16/02
Inventor 宋战平袁驰宇赵冰崔玉明孟庆信
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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