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

Supporting structure in which shearing force pin shield tunnel duct piece opening is adopted and construction method

A shield tunnel segment and support structure technology, which is applied to tunnels, tunnel linings, mining equipment, etc., can solve problems affecting the tunneling of shield machines, and achieve the effect of simple construction technology and low engineering investment

Pending Publication Date: 2017-12-22
中铁隧道集团海外工程有限公司 +1
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general support method usually adopts steel structure ring support or portal frame to support the segment to ensure the safety of the opening. However, before the construction of these measures, the water supply and power supply pipelines of the shield machine need to be cleaned, and the temporary rail transportation will be interrupted, which will affect the shield machine. excavation

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
  • Supporting structure in which shearing force pin shield tunnel duct piece opening is adopted and construction method
  • Supporting structure in which shearing force pin shield tunnel duct piece opening is adopted and construction method
  • Supporting structure in which shearing force pin shield tunnel duct piece opening is adopted and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] see as Figure 1-Figure 4 As shown, the technical solution adopted in this specific embodiment is: it includes a shear pin 1, a front ring segment 3 and a rear ring segment 4; the front ring segment 3 and the rear ring segment 4 are spliced ​​and arranged. Both the annular segment 3 and the rear annular segment 4 are clamped with shear pins 1 that are engaged with each other.

[0025] Further, epoxy resin glue 2 is filled in the gap between the outer wall of the shear pin 1 and the prefabricated holes of the shear pin in the front ring segment 3 and the rear ring segment 4 .

[0026] Further, the number of the shear pins 1 can be flexibly selected according to geological and hydrological conditions and structural design calculation results.

[0027] The construction method of this embodiment is as follows:

[0028] 1. Renovate the mold and reserve prefabricat...

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 supporting structure in which a shearing force pin shield tunnel duct piece opening is adopted and a construction method, and relates to the technical field of shield tunnels. The supporting structure comprises a shearing force pin, a front annular duct piece and a rear annular duct piece; the front annular duct piece and the rear annular duct piece are spliced to each other and are both internally provided with shearing force pins which are meshed with each other in a clamping mode. By improving a mold, the special duct pieces with prefabricated holes are produced, the shearing force pin is inserted in the duct piece assembly process, the shearing force generated in the duct piece opening after the duct pieces are penetrated is borne through the shearing pin, additional supporting is not needed, the durability of the duct pieces is not influenced, in-hole transportation during tunnel construction is also not influenced, and the structure safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of shield tunnels, in particular to a support structure and a construction method for using shear pins to support shield tunnel segment openings. Background technique [0002] At present, during the construction of the auxiliary structures of the shield tunnel, such as the communication channel, the rainwater pump room, etc., or the connecting channel structure connecting the shield tunnel, it is necessary to remove the segment structure that has been assembled, and then implement the excavation process in the tunnel to reduce the pipe load. The interference of the segment opening construction on the excavation of the main tunnel and ensuring the structural safety and stability of the segment opening are important and difficult points in shield tunneling construction. The general support method usually adopts steel structure ring support or portal frame to support the segment to ensure the safety of the open...

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): E21D11/08E21D9/00
CPCE21D9/00E21D11/08E21D11/083
Inventor 吴乐斌谢家化王玉卿杜闯东王坤熊朝东汪鹏飞李广涛古宗华孙庆田李龙坤孙东波何爱华邓湘波曹楷李献航朱韬李正华张杰魏小松张政孙明磊
Owner 中铁隧道集团海外工程有限公司
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