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Segment assembly point position selection device and method in shield method construction and application of segment assembly point position selection device and method

A technology for segment assembly and construction, which is applied in vertical shaft equipment, earthwork drilling, wellbore lining, etc., can solve the problem that segment assembly points cannot provide guidance for the site, cannot avoid segment misplacement and damage, and are accurate. It can avoid problems such as low rate and avoid misplacement and damage, fast calculation speed and low production cost.

Pending Publication Date: 2022-03-01
CHINA RAILWAY FIRST GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Through the above analysis, the existing problems and defects of the existing technology are: in the construction of the existing technology, the selection of the segment assembly site cannot provide guidance for the site, and cannot avoid the occurrence of segment misalignment and damage
Moreover, in the determination of the position of the selected point in the prior art, the accuracy rate is low
high cost

Method used

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  • Segment assembly point position selection device and method in shield method construction and application of segment assembly point position selection device and method
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  • Segment assembly point position selection device and method in shield method construction and application of segment assembly point position selection device and method

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Embodiment Construction

[0116] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0117] Such as figure 1 As shown, the present invention provides a segment assembly point selection device in shield tunneling construction, which is provided with a bottom plate A and a top plate B with upper and lower layers, a bearing C is fixed in the center of the bottom plate B,...

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Abstract

The invention belongs to the technical field of tunnel construction, and discloses a segment assembly point position selection device and method in shield method construction and application. Analysis is carried out in the aspects of segment types, splicing modes, axis fitting, shield tail gaps and jack stroke differences, proper splicing point positions of segments are selected, so that the horizontal included angle alpha 2 between the segments and the designed axis and the vertical included angle theta 2 between the segments and the designed axis tend to zero, the included angle between the axis of the segments and the axis of the shield tail is reduced, and the friction probability between the segments and the shield tail is reduced. And shield tail leakage, water gushing and sand gushing are prevented. According to the method, the splicing point positions of the duct piece top sealing blocks can be visually displayed, duct piece splicing operators can quickly and accurately determine the splicing point positions, and therefore the point selection precision is improved, and the situations that due to inaccurate selection of the splicing point positions, a gap between the outer arc face of a duct piece and the inner arc face of a shield tail is small, and the axis deviation of a formed duct piece is large are avoided. According to the method, the phenomena of slab staggering and damage caused by wrong segment splicing point positions are avoided to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a device, a selection method and an application for selecting a segment assembly point in shield tunneling construction. Background technique [0002] At present, the segment is the main assembly component of the shield construction, and is the innermost barrier of the tunnel, which bears the role of resisting soil pressure, groundwater pressure and some special loads. The segment is the permanent lining structure of the shield tunnel. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. [0003] In the shield tunnel construction, the selection of segment assembly point is very important. If the point is not selected properly, the most direct performance is segment misalignment. In severe cases, segment damage and water leakage will occur,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D11/08E21D11/40
CPCE21D9/0607E21D11/08E21D11/40
Inventor 卢昊邓文涛李宏房毅赖长俊游志杰魏帅
Owner CHINA RAILWAY FIRST GRP CO LTD
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