General method for laying out and assembling wedge-shaped duct pieces

A general-purpose wedge-shaped segment and wedge-shaped tube technology, which is applied in shaft equipment, earthwork drilling, wellbore lining, etc., can solve problems such as fixed rotation angle, single staggered joint assembly form, and limited fitting accuracy of tunnel design axis, and achieve enhanced Integrity, improvement of assembly quality, convenient transportation and construction management

Inactive Publication Date: 2014-04-30
中海建筑有限公司
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Problems solved by technology

[0002] Shield tunnels are ultimately assembled from segments, which generally adopt two forms: through-joint assembly and staggered-joint assembly; but in the usual tunnel lining construction, the form of staggered-joint assembly is relatively simple, and the The rotation angle is rela

Method used

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  • General method for laying out and assembling wedge-shaped duct pieces
  • General method for laying out and assembling wedge-shaped duct pieces
  • General method for laying out and assembling wedge-shaped duct pieces

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Embodiment Construction

[0016] Such as Figure 1 to Figure 5 As shown, this embodiment provides a general wedge-shaped segment typesetting and assembling method, taking a shield tunnel with a straight line segment and a curved segment with an ultra-small radius of curvature as an example, including the following steps:

[0017] Step 1. According to the total length of the tunnel of this project is 235m, the two ends of the tunnel are straight sections, the design mileage of the middle section is a right-curved small radius section with R=248.5m, the length is 217m, and the lining segment adopts a general wedge-shaped segment. The parameters of segment rings and segments are as follows: segment ring inner diameter is 3900mm, outer diameter is 4460mm, each ring is composed of 6 wedge-shaped segments (A-F), and there are 12 pairs of bolt holes in the longitudinal direction, which are evenly distributed along the circumference of the segment. It is 30° from the center of the segment. Correspondingly, the...

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Abstract

The invention provides a general method for laying out and assembling wedge-shaped duct pieces. The general method comprises the following steps: step one, determining parameters of general wedge-shaped duct pieces and general wedge-shaped duct piece rings; step two, selecting a laying-out and assembling method; step three, during shield tunneling, carrying out fine turning on shield tunneling axes by utilizing the change of the general wedge-shaped duct pieces and the relative wedge-shaped volume in the vertical direction at different rotation angles. The general method has the beneficial effects that the general wedge-shaped duct pieces with only one manner can be used for a straight line section and also can be used for a curved section through the laying-out and assembling method of different wedge-shaped duct pieces, so that the manufacturing and assembling process of the duct pieces is simplified, the assembling quality of the duct pieces is improved, and the integrality of the duct piece rings is enhanced; meanwhile, through the adoption of the duct pieces with single type, the duct pieces are more convenient to store, transport, construct and manage.

Description

technical field [0001] The invention relates to a typesetting and assembling method of a general wedge-shaped segment. Background technique [0002] Shield tunnels are ultimately assembled from segments, which generally adopt two forms: through-joint assembly and staggered-joint assembly; but in the usual tunnel lining construction, the form of staggered-joint assembly is relatively simple, and the The rotation angle is relatively fixed, and the fitting accuracy to the tunnel design axis is limited; the invention relates to a general wedge-shaped segment assembling method that can fit the design axis of a shield tunnel with both a straight section and an ultra-small radius of curvature section. Contents of the invention [0003] The present invention aims to solve the above problems, and provides a general wedge-shaped segment assembling method that can fit the design axis of a shield tunnel with both a straight section and a section with an ultra-small radius of curvature...

Claims

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Application Information

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IPC IPC(8): E21D11/04
Inventor 何军师达
Owner 中海建筑有限公司
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