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Segment circular seam connection component, tunnel segment structure and construction method

A technology for connecting components and tunnel segments, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc., can solve problems such as unreasonable force, segment cracking, waste materials, etc., to improve tolerance capacity, improve connection strength, The effect of expanding the range of activities

Active Publication Date: 2016-04-20
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 circular seam connection component, tunnel segment structure and construction method
  • Segment circular seam connection component, tunnel segment structure and construction method
  • Segment circular seam connection component, tunnel segment structure and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0054] see Figure 1 to Figure 6 , this embodiment discloses a segment ring seam connection assembly, including a ring seam male part 2 and a ring seam female part 3 respectively pre-embedded on two segments 1 that need to be butted longitudinally; the ring seam male part 2 It includes a head 21, a neck 22 and a tail 23 connected in sequence, the outer diameter of the head 21 is greater than the outer diameter of the neck 22, and the neck 22 and the tail 23 are connected by a universal head 24; The circular seam female part 3 includes a connected front part 31 and a rear part 32, an inner chamber 311 is provided in the front part 31, and an end of the front part 31 far away from the rear part 32 is provided with a The opening 312 connected to the inner cavity 311, the front part 31 is provided with several slider mechanisms 33 around the opening 312, the inner diameter of the opening 312 is greater than the outer diameter of the head 21, the slider mechanism 33 The aperture f...

Embodiment 2

[0065] This embodiment discloses a tunnel segment structure, which includes several segments. seam connection components.

[0066] see Figure 7 to Figure 16 , and see in conjunction with Figure 1 to Figure 6 , the segment longitudinal seam connection assembly includes 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, and the longitudinal seam female part 2' and the ring The male seaming part 3 is located on the adjacent end face of the same segment 1, and the longitudinal seaming male part 2' includes a cylindrical body 21' with a gradual cross section, a connecting plate 22' and a base 23', and one end of the connecting plate 22' is affixed to On the side of the cylinder 21' with a gradual cross section, 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 the diameter of...

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 moved along the longitudinal direction of the tunnel to the instal...

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Abstract

The invention discloses a segment circular seam connection component, a tunnel segment structure and a construction method. The segment circular seam connection component comprises a circular seam convex part and a circular seam concave part, and the circular seam convex part and the circular seam concave part are pre-embedded in two segments requiring circular butt joint. The circular seam convex part comprises a head portion, a neck portion and a tail portion in sequential connection, an outer diameter of the head portion is larger than that of the neck portion, and the neck portion is connected with the tail portion through a universal joint. The circular seam concave part comprises a front portion and a rear portion, the front portion and the rear portion are connected with each other, the front portion is internally provided with an inner cavity, one end, away from the rear portion, of the front portion is provided with an opening communicated with the inner cavity, a plurality of slider mechanisms are arranged around the opening of the front portion, and an inner diameter of the opening is larger than an outer diameter of the head portion. The segment circular seam connection component has an allowance performance and is adaptive to construction environments and capable of meeting the requirements on stress, deformation and water resistance in construction and use of lining segments 1. In addition, simultaneity in longitudinal and circular butt joint of the segments can be realized, and quickness and convenience in construction, easiness for mechanization and automation in construction are achieved.

Description

technical field [0001] The invention relates to a tunnel construction tool, in particular to a segment annular joint 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 turn le...

Claims

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Application Information

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IPC IPC(8): E21D11/08
CPCE21D11/083
Inventor 程子聪王新新
Owner SHANGHAI CONSTRUCTION GROUP
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