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Segment longitudinal seam connection assembly, tunnel segment structure and construction method

A technology for connecting components and tunnel segments, applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as waste of materials, unreasonable force, segment cracking, etc., to expand the range of activities, improve tolerance capabilities, The effect of ensuring a reliable connection

Active Publication Date: 2018-07-17
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The use of bolts as connectors requires setting hand holes on the segment, which weakens the concrete segment, and is prone to local cracking of the segment during construction and use, which in turn leads to water leakage, affecting normal use and lining durability
[0005] 2) The fastening of bolts is basically manual work, which consumes a lot of time and manpower, and the construction speed is slow and the construction period is long
The C-H-C type longitudinal seam quick connector consumes more materials and costs more in the production of segments, and the three-piece type has one more force transmission link than the two-piece type connector, so there are more links where problems occur. Under the same conditions The stiffness is also relatively small
In addition, both types of connectors have unreasonable stress, and stress concentration is prone to occur during use

Method used

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  • Segment longitudinal seam connection assembly, tunnel segment structure and construction method
  • Segment longitudinal seam connection assembly, tunnel segment structure and construction method
  • Segment longitudinal seam connection assembly, tunnel segment structure and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0054] see Figure 1 to Figure 10 , this embodiment discloses a segment longitudinal seam connection assembly, including a longitudinal seam male part 2' and a longitudinal seam female part 3' respectively pre-embedded on two segments 1 that need to be butted in the circumferential direction, the longitudinal seam The female part 2' and the male part 3 of the circular seam are located on the adjacent end faces of the same segment 1, and the male part 2' of the longitudinal seam includes a cylindrical body 21' with a gradual cross section, a connecting plate 22' and a base 23', and the connecting plate One end of 22' is affixed to the side of the cylinder with gradual cross section 21', the other end of the connecting plate 22' is connected to the base 23', and the thickness of the connecting plate 22' is smaller than that of the cylindrical body with gradual cross section The small head diameter of 21', the axis line of the gradual cross-section cylinder 21' is parallel to the...

Embodiment 2

[0062] This embodiment discloses a tunnel segment structure, including several segments, the segments are connected in the circumferential direction through the segment longitudinal seam connection assembly as described above, and the segments are connected in the longitudinal direction through the segment annular seam connection assembly connect.

[0063] see Figure 11 to Figure 16 , and see in conjunction with Figure 1 to Figure 10, the segment annular seam connection assembly, including the annular seam male part 2 and the annular seam female part 3 respectively pre-embedded on the two segments 1 that need longitudinal butt joint, the longitudinal seam female part 3' and the annular seam male part 2 is located on the adjacent end face of the same segment 1; the female part 2' of the longitudinal seam and the male part 3 of the circular seam are located on the adjacent end face of the same segment 1; the male part 2 of the circular seam includes successively connected hea...

Embodiment 3

[0074] This embodiment discloses a construction method for a tunnel segment structure as described in Embodiment 2, which includes the following steps:

[0075] Step 1: See Figure 17 , and please combine Figure 1 to Figure 16 , use a crane to adjust the position of the segment 1 with the female part 3' and the male part 2 with the longitudinal seam through the segment installation arm 5, so that the groove 10 is aligned with the installed male part 2 with the longitudinal seam 'The longitudinal seam male part 2' of the segment 1, the annular seam male part 2 is aligned with the annular seam female part 3 of another segment having the annular seam female part 3 already installed.

[0076] In the second step, see Figure 18 , and please combine Figure 1 to Figure 16 , through the segment installation arm 5, the segment 1 with the longitudinal seam female part 3' and the annular seam male part 2 is gradually pushed along the direction of another segment 1 with the annular s...

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Abstract

The invention discloses a segment longitudinal seam connecting assembly, a tunnel segment structure and a construction method. The segment longitudinal seam connecting assembly comprises a longitudinal seam male part and a longitudinal seam female part, wherein the longitudinal seam male part comprises a gradient section cylinder, a connecting plate and a base, one end of the connecting plate is fixedly connected to the side face of the gradient section cylinder, and the other end of the connecting plate is connected with the base; the longitudinal seam female part comprises a front section and a rear section, a gradient section cylindrical cavity matched with the gradient section cylinder is formed in the front section, a through hole matched with the connecting plate in shape and size and communicated with the gradient section cylindrical cavity is formed in one end, away from the rear section, of the front section, the longitudinal seam female part is wholly pre-buried into a segment, a groove capable of containing the longitudinal seam male part is formed in the segment, and the longitudinal seam female part is located at one side of the groove. The tunnel segment structure has certain tolerance capacity, is adaptive to construction environment and capable of achieving simultaneous butt joint of segments in the longitudinal and circumferential directions, and has the advantages of being fast and convenient to construct and easy to construct automatically.

Description

technical field [0001] The invention relates to a tunnel construction tool, in particular to a segment longitudinal seam connection assembly, a tunnel segment structure and a construction method. Background technique [0002] Segment joints are an important part of the fabricated lining segments of shield tunnels. The performance and economy of the joints directly determine the performance and construction cost of the entire lining structure. At present, the domestic shield tunnel lining basically uses bolts as connecting parts, including short straight bolts, long straight bolts, bent bolts, and oblique bolts. [0003] The installation of bolts as connecting parts is intuitive and reliable, and can guarantee the required fastening force, but there are also many problems: [0004] 1) Using bolts as connectors requires setting hand holes on the segment, which weakens the concrete segment, and is prone to local cracking of the segment during construction and use, which in tur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08
CPCE21D11/083
Inventor 程子聪杜世开
Owner SHANGHAI CONSTRUCTION GROUP
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