Tenon joint shield segment

A technology for mortise-jointing shield pipes and mortise-grooves, which is applied in shaft linings, tunnel linings, underground chambers, etc., can solve problems such as time occupation and difficult operation of tightening bolts, achieve firm bite, speed up shield construction process, The effect of improving splicing efficiency

Inactive Publication Date: 2019-01-15
徐州市三成铸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the shield segments are arc-shaped, the smooth butt joint of the upward screw grooves is also required to allow the arc-shaped bolts to pass through smoothly, so that the alignment of the screw groove holes of t

Method used

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  • Tenon joint shield segment
  • Tenon joint shield segment
  • Tenon joint shield segment

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] Such as figure 1 with figure 2 As shown, a tenon-joined shield tube segment includes an arc-shaped sheet body 1, a circumferential groove 2, a longitudinal groove 3, and a sealing strip 4. One end of the arc-shaped sheet body 1 has two tongues 6 and the other end has two tongues and grooves 5, both of which are arc-shaped tongues and grooves, and the curvature of the tongues 6 and grooves 5 is the same as that of the arc-shaped sheet body 1. The curvature is the same. When the shield segment is installed, the tenon 6 is inserted into the tenon groove 5. Since the curvature of the tenon 6 and the tenon groove 5 are the same as the curvature of the arc-shaped sheet body 1, the arc-shaped hoop screw at both ends of the two arc-shaped sheet bodies 1 The groove 2 is automatically aligned, and the arc bolt can pass through the circumferential screw groove 2 smoothly, which greatly reduces the difficulty of aligning the circumferential screw groove 2, improve...

Example Embodiment

[0027] Example 2

[0028] Such as image 3 As shown, a tenon-joined shield tube segment includes an arc-shaped plate body 1, a circumferential groove 2, a longitudinal screw groove 3, and a sealing strip 4. Both ends of the arc-shaped plate body 1 have a tongue groove 5 and a groove Tenon 6. The tongue 6 and the tongue groove 5 are both arc-shaped tongue and groove, and the curvature of the tongue 6 and the tongue groove 5 are the same as the curvature of the arc-shaped sheet body 1. When the shield tube is installed, the tongue and groove 5 and the tenon 6 of the two arc-shaped sheet bodies 1 are inserted into each other. Since the curvature of the tongue 6 and the tongue and groove 5 is the same as the curvature of the arc-shaped sheet body 1, the two arc-shaped sheet bodies The arc-shaped circumferential grooves at both ends of 1 are automatically aligned, and the arc-shaped bolts can pass through the circumferential grooves 2 smoothly, which greatly reduces the difficulty of...

Example Embodiment

[0029] Example 3

[0030] On the basis of Example 1, if the staggered stitching is adopted, it is only necessary to shift the position of the longitudinal screw grooves to the two ends when the shield segment is prefabricated, and at the same time, move the tenon joint to the side of the arc-shaped segment. In order to improve the butting efficiency of the two arc-shaped pieces in the longitudinal direction.

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PUM

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Abstract

The invention relates to a tenon joint shield segment which comprises a curved piece body, circumferential bolt grooves, longitudinal bolt grooves and a sealing strip. Two ends and two sides of the curved piece body have tenon heads and mortises, both the tenon heads and the mortises are curved, and the curvature of the tenon heads and the mortises are the same with that of the curved piece body.The tenon heads and the mortises have anchor holes. When the shield segments are installed, tenon heads are inserted into the mortises, anchor rods pass through the anchor holes to clamp the tenon heads. According to the tenon joint shield segment, two ends of the tenon joint shield segment have tenon structures, the segments are connected through the tenon heads and the mortises, the connection efficiency of the shield segments is improved, and the shield construction process is accelerated. The invention provides the tenon joint shield segment, a tenon joint shield segment is inserted into an adjacent tenon joint shield segment through the tenon heads, the connection between the tenon joint shield segments is more firm, the probability of the deformation of a segment ring is little, andthe construction is convenient and efficient.

Description

technical field [0001] The invention relates to shield technology, in particular to a mortise-jointed shield segment. Background technique [0002] Shield tunnel construction is generally used in subway construction. Shield tunnel segment is the main assembly component of shield tunnel construction and the innermost barrier of the tunnel, which bears the role of resisting soil pressure, groundwater pressure and some special loads. The shield 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. Existing shield segments generally adopt arc-shaped sheet structure, and are sealed and waterproof by sealing strips. The arc-shaped sheet ring has arc-shaped screw grooves upward, and straight screw grooves in the longitudinal direction. The arc-shaped screw groove and the straight screw groove are used ...

Claims

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Application Information

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IPC IPC(8): E21D11/08
CPCE21D11/083
Inventor 齐大海
Owner 徐州市三成铸业有限公司
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