Lattice anti-rockfall structure of large ultrahigh karst cavity tunnel and construction method

A technology of tunnel structure and lattice structure, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., to achieve the effect of simple construction method, favorable promotion and high height

Pending Publication Date: 2020-05-08
CHINA RAILWAY ERYUAN ENG GRP CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a large-scale ultra-high karst cavity tunnel lattice type anti-rockfall structure to effectively solve the problem of safety protection for large-scale ultra-high karst cavity tunnel structures

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
  • Lattice anti-rockfall structure of large ultrahigh karst cavity tunnel and construction method
  • Lattice anti-rockfall structure of large ultrahigh karst cavity tunnel and construction method
  • Lattice anti-rockfall structure of large ultrahigh karst cavity tunnel and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0024] refer to figure 1 , a large-scale ultra-high karst cavity tunnel lattice type anti-rockfall structure of the present invention, including a tunnel structure 1 passing through the ultra-high karst cavity, the tunnel structure 1 is integrally poured with reinforced concrete, and the bottom is located on the stable bedrock surface On the tunnel foundation 2 above, an integral reinforced concrete frame structure spanning the tunnel structure 1 and extending longitudinally along the line is set on the tunnel foundation 2. The upper part of the reinforced concrete frame structure is triangular, and the top is connected to the roof of the karst cavity. The outer side of the integral reinforced concrete frame structure is tightly wrapped and installed with a passive protective net 6; the lateral sides of the tunnel structure 1 are filled with tunnel dregs A c...

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 provides a lattice anti-rockfall structure of a large ultrahigh karst cavity tunnel and a construction method so as to effectively solve the problem about safety protection of a large ultrahigh karst cavity tunnel structure. The lattice anti-rockfall structure comprises a tunnel structure passing through an ultrahigh karst cavity, the tunnel structure is formed by overall pouring reinforced concrete, the bottom of the tunnel structure is located on a tunnel foundation located on a stable bed rock plane, and an overall reinforced concrete frame structure which crosses over the tunnel structure and extends in the way longitudinal direction is arranged on the tunnel foundation. The upper portion of the overall reinforced concrete frame structure is triangular, the top end of theoverall reinforced concrete frame structure is connected with a karst cavity top plate, and a passive protection net is mounted on the outer side of the overall reinforced concrete frame structure ina tensioning and wrapping manner. The outer portions of the two transverse sides of the tunnel structure are filled with tunnel waste slag to form a back pressure body.

Description

technical field [0001] The invention relates to geotechnical engineering, in particular to a lattice-type anti-rockfall structure and a construction method for a large ultra-high karst cavity tunnel. Background technique [0002] Karst landforms are widely distributed in my country, and karst voids formed by karst landforms are uncertain and usually difficult to detect accurately. For tunnel engineering, it is very common to encounter karst voids when crossing karst rocks. If you encounter karst voids Smaller, concrete is usually used to fill the cavity. When the karst cavity encountered is very wide and the cavity is very high and the cavity is super high, it is impossible to use concrete to fill the karst cavity, and the impact force of the rockfall on the top of the super high cavity will be It is very large, and traditional protection measures are difficult to guarantee the safety of the tunnel structure. When the tunnel structure is difficult to avoid, how to realize the ...

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): E21D11/00E21D11/10
CPCE21D11/00E21D11/10
Inventor 姚裕春张耀袁碧玉肖朝乾周波房立凤高继涛
Owner CHINA RAILWAY ERYUAN ENG GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap