Tunnel structure penetrating through active fault fracture zone and construction method thereof

A technology of active faults and tunnel structures, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as safety threats, achieve the effects of improving safety performance, improving connection performance, and reducing vibration amplitude

Active Publication Date: 2020-12-11
浙江华东工程咨询有限公司 +1
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can cope with certain fault displacement to a certain extent, but the tectonic stress caused by fault activity will directly act on the internal secondary lining structure, posing a serious threat to its safety

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 structure penetrating through active fault fracture zone and construction method thereof
  • Tunnel structure penetrating through active fault fracture zone and construction method thereof
  • Tunnel structure penetrating through active fault fracture zone and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The following is attached Figure 1-5 The application is described in further detail.

[0042] The embodiment of the present application discloses a tunnel structure passing through a broken zone of an active fault. refer to figure 1 , 2 , located in the rock formation 1 and across the active fault fracture zone 2, including the tunnel body 3, the buffer layer 4 and the support layer 5.

[0043] The tunnel body 3 includes several pipe sections 6 which are coaxially spliced ​​sequentially. The pipe joints 6 can be prefabricated. Some pipe joints 6 have a grouting hole 19 penetrating through the pipe wall of the pipe joint 6 at the top, and a ventilation inspection hole 20 penetrating the pipe joint 6 is opened on one side of the grouting hole 19 .

[0044] refer to figure 1 , 3 , the cross-section of the pipe joint 6 is ring-shaped, one end of the pipe joint 6 is coaxially fixedly connected with a plug-in section 7 , and the opposite end is coaxially fixedly connec...

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 relates to a tunnel structure penetrating through an active fault fracture zone. The tunnel structure is located in a rock stratum and stretches across the active fault fracture zone, and comprises a tunnel body stretching across the active fault fracture zone and a flexible buffer layer between the tunnel body and the active fault fracture zone, the tunnel body is formed by coaxially and sequentially splicing a plurality of pipe sections end to end, a supporting layer used for stabilizing a broken zone is further arranged between the buffer layer and the active fault fracture zone, the supporting layer stretches across the active fault fracture zone, the supporting layer is arranged around the pipe sections, and a supporting abutment used for supporting the pipe sections isfurther arranged on the supporting layer. The tunnel structure has the effect of reducing the dislocation displacement of the active fault fracture zone and directly transmitting the force to the tunnel body.

Description

technical field [0001] The present application relates to the field of tunnel construction, in particular to a tunnel structure passing through an active fault fracture zone and a construction method thereof. Background technique [0002] my country is an earthquake-prone country, located in the circum-Pacific seismic belt and the Eurasian seismic belt, with frequent seismic activities. Tunnel construction often encounters fault fracture zones, some of which are active faults, which pose great challenges to tunnel safety. Deep and large active faults are widely distributed in the Sichuan-Tibet Railway construction area, and the seismic activity is frequent, the magnitude is large, and the intensity is high, which seriously threatens the safety of the tunnel. The impact of active faults on the tunnel must be considered. Active faults will cause large displacements of the upper and lower walls of the fault during continuous creep or earthquakes, which will cause serious damag...

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): E21D9/14E21D11/08E21D11/10E21D11/38
CPCE21D9/14E21D11/08E21D11/10E21D11/385Y02E10/20
Inventor 张强陈永红单治钢叶武
Owner 浙江华东工程咨询有限公司
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