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

Tunnel support system suitable for soft and broken surrounding rocks

A technology for crushing surrounding rock and tunnels, applied in the field of tunnel support systems, can solve problems such as uneven stress, deformation, and easy cracking and peeling of the sprayed concrete layer, and achieve the effect of stable support

Active Publication Date: 2019-11-29
LANZHOU JIAOTONG UNIV
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The tunnel support system plays an important role in the construction of the tunnel. The existing Chinese patent No. CN207470209 U solves the problem of adding a steel frame mesh sprayed concrete inner layer support to the inner layer of the initial support of the tunnel. Under the condition of relatively high soft rock formation, the concrete shotcrete layer is easy to crack and peel off and the deformation is not easy to control. The inconvenient handling of the area and the uneven stress during the tunnel support process lead to some inconvenience in the support project, and in the tunnel support project, when constructing the reinforced shotcrete layer, Requires firm support for the reinforced shotcrete course

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 support system suitable for soft and broken surrounding rocks
  • Tunnel support system suitable for soft and broken surrounding rocks
  • Tunnel support system suitable for soft and broken surrounding rocks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] See Figure 1-5 , The present invention provides the following technical solutions: a tunnel support system suitable for weak and broken surrounding rock, including broken surrounding rock layer 1 and initial support shotcrete layer 2, and set on the broken surrounding rock layer 1 and initial support shotcrete layer The hollow spiral anchor rod 3 and the anchoring device 5 inside the concrete layer 2, the initial support shotcrete layer 2 is fixed with the first reinforced shotcrete layer reinforcement board 4 and the first reinforced shotcrete layer reinforcement board 13 through several anchoring devices 5. One end of the first reinforced shotcrete layer reinforcement board 4 is integrally formed with a second protrusion 9, and one side of the second protrusion 9 on the outer surface of the first reinforced shotcrete layer reinforcement board 4 is integrally formed with a second slot 10, One end of the No. 1 reinforced shotcrete layer reinforcement plate 13 is integra...

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 belongs to the technical field of tunnel support, and particularly relates to a tunnel support system suitable for soft and broken surrounding rocks. The tunnel support system includes abroken surrounding rock layer and an initial support shotcrete layer, as well as a hollow screw bolt and anchor devices which are arranged inside the broken surrounding rock layer and the initial support shotcrete layer, the initial support shotcrete layer is fixedly provided with first enhanced shotcrete layer mending plates and enhanced shotcrete layer mending plates I through a plurality of anchor devices, one ends of the first enhanced shotcrete layer mending plates are integrally provided with second convex blocks, a plurality of first enhanced shotcrete layer mending plates are clampedto the enhanced shotcrete layer mending plates I, construction of the whole support device is more convenient and fast, and an arch is formed between the multiple first enhanced shotcrete layer mending plates and the enhanced shotcrete layer mending plates I, so that the support of the whole support device to force is more stable.

Description

Technical field [0001] The invention belongs to the technical field of tunnel support, and specifically relates to a tunnel support system suitable for weak and broken surrounding rocks. Background technique [0002] Tunnel support refers to a permanent support structure built with reinforced concrete and other materials along the periphery of the tunnel to prevent deformation or collapse of the surrounding rock. Tunnel support technology is usually used in tunnel engineering and water conservancy channels. Tunnel support Simply put, it is the inner lining. The common one is to use block tunnel support, which can be prestressed high-pressure grouting concrete tunnel support. [0003] The tunnel support system plays an important role in the construction of the tunnel. The existing Chinese patent with patent number CN207470209 U solves the problem of adding a steel frame net shotcrete inner layer support to the inner layer of the initial Under the conditions of higher soft rock form...

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): E21D11/08E21D11/10E21D11/14E21D20/02E21D21/00
CPCE21D11/08E21D11/083E21D11/10E21D11/14E21D20/02E21D21/0093
Inventor 轩俊杰卢永飞严松宏
Owner LANZHOU JIAOTONG UNIV
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