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

The construction method used for the anti-rotation at the start of the shield machine

A construction method and technology of shield machine, which are applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of rotation, instability of steel sleeve device, failure of starting, etc., and achieve good sealing effect, small structural size, Simple and practical effect

Active Publication Date: 2022-02-15
CCCC SECOND HARBOR ENG
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of initiation also has certain limitations. The frictional resistance moment of the steel sleeve support to the shield body, the frictional resistance moment of the face of the tunnel, and the frictional resistance torque of the backfill in the sleeve to the shield shell are not enough to overcome the shield. When the rotational torque of the machine cutter head is increased, the shield body may rotate, resulting in the instability of the steel sleeve device, which may lead to failure of the initial launch, resulting in major construction risks

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
  • The construction method used for the anti-rotation at the start of the shield machine
  • The construction method used for the anti-rotation at the start of the shield machine
  • The construction method used for the anti-rotation at the start of the shield machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0032] In the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", " The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not indicative or implied. It should not be construed as limiting the invention that a device or element must have a particular orientation, be constructed, and operate in a particular orientation.

[0033] Such as Figure 1~4 As shown, the present invention provides a construction method for the originating anti-twist device of the...

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 starting anti-rotation device for a shield machine and a construction method thereof. A pair of rails are arranged at intervals in the lower part of the steel sleeve, which includes the following steps: Step 1. A pair of inner and outer through holes are arranged symmetrically on the shield body. jacks, and the distance between a pair of jacks is set so that they can be located on both sides of a pair of rails; Step 2, seal and fix the sleeve in the jack, and set threads on the inner wall of the sleeve; Step 3, A pair of screw rods are threadedly connected in a pair of sockets respectively, and can extend or retract into the outer wall of the shield. The invention has the advantages of simple structure, convenient use, good sealing effect and the like.

Description

technical field [0001] The invention is used in the technical field of tunnel construction devices. More specifically, the present invention relates to an anti-twist device for starting a shield machine and its construction method, especially applicable to the technical field where it is impossible to weld an anti-iron block on the periphery of the shield when a steel sleeve is used for starting. Background technique [0002] The steel sleeve launch of the shield machine is a new construction technology developed based on the principle of balance. When the steel sleeve is launched, before the shield machine goes down the well, the lower half of the steel sleeve is installed at the designated position of the launch shaft, and Appropriately backfill gravel at the inner bottom of the sleeve, spread coarse sand on the upper part, then hoist the shield downhole, and finally install the steel sleeve and continue backfilling. The closed space of this steel sleeve provides the wate...

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 Patents(China)
IPC IPC(8): E21D9/06
CPCE21D9/06
Inventor 吴伟才孙国华徐伟肖浩
Owner CCCC SECOND HARBOR ENG
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