Assembly structure, connecting device and connecting method of different radius pipe pieces

Abstract

The application relates to a subway section project and discloses an assembling structure of different radius pipe pieces, a connecting device and a connecting method. The assembling structure of different radius pipe pieces comprises a first pipe piece, a second pipe piece and a connecting device, the first pipe piece and the second pipe piece are connected through the connecting device, the connecting device comprises a first ring plate, a second ring plate and a third ring plate, the first ring plate is matched with the first pipe piece, the third ring plate is matched with the second pipe piece, the first ring plate, the second ring plate and the third ring plate are arranged in sequence and are connected with each other through a first connecting piece, the first pipe piece is connected with the first ring plate and the second ring plate through a second connecting piece, and the second pipe piece is connected with the second ring plate and the third ring plate through a third connecting piece. The connecting method can effectively solve the connecting problem of the pipe pieces with large radius difference during tunnel mechanical construction.

Description

TECHNICAL FIELD

[0001] The present application relates to metro section engineering, in particular to an assembling structure of different radius segments, a connecting device and a connecting method. BACKGROUND

[0002] At present, the total investment of metro construction is very large, and the construction period is one of the important factors affecting the total investment. Due to the reasons such as station construction land acquisition and demolition, traffic flow adjustment, pipe comprehensive line transformation, the station construction period is longer, and the station cannot provide conditions for the machine to pass through. In order to compress the construction period, a "tunnel first and station later" construction method is proposed, that is, the machine continues to dig in the station range, and the tunnel construction is completed, and then the station construction is carried out. There are usually two methods of shotcrete support and temporary segment for the machine to pass through the station range. Compared with the shotcrete support, the temporary segment has the following advantages: the temporary segment has good structural integrity, has less influence on the structure during the station construction, and has high safety; the machine can continuously dig when passing through the station, reduces the time of re-launching the machine and setting anchor rods, saves the construction period, and the construction progress node is clear. After the machine passes through the station, the temporary segment is removed during the station excavation. In order to reduce the amount of concrete and reduce the engineering cost, small-radius segments can be used in the station range, and standard segments can be used in the main line. The existing segment connection method is mainly for the connection between segments with the same radius: bolt, sleeve, auxiliary segment lap, etc. This connection method cannot be connected when the inner diameters of the segments are greatly different, or there is no overlapping part between the two segments. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an assembling structure of different radius segments, a connecting device and a connecting method, which can realize the connection of segments with different radii.

[0004] The assembling structure of different radius segments disclosed by the present application comprises a first segment, a second segment and a connecting device, the first segment and the second segment are connected through the connecting device, the connecting device comprises a first ring plate, a second ring plate and a third ring plate, the first ring plate is matched with the first segment, the third ring plate is matched with the second segment, the first ring plate, the second ring plate and the third ring plate are arranged in sequence and connected with each other through a first connecting piece, the first segment is connected with the first ring plate and the second ring plate through a second connecting piece, and the second segment is connected with the second ring plate and the third ring plate through a third connecting piece.

[0005] Preferably, a corresponding first connecting hole is formed in each of the first ring plate, the second ring plate and the third ring plate, the first connecting piece is a cylindrical piece, and the first connecting piece is connected in the first connecting hole of the first ring plate, the second ring plate and the third ring plate respectively.

[0006] Preferably, the first connecting member is welded or threaded to the first ring plate, the second ring plate and the third ring plate.

[0007] Preferably, the first pipe segment and the second pipe segment are each provided with a hand hole, the first ring plate and the second ring plate are provided with a second connecting hole corresponding to the hand hole of the first pipe segment, the second ring plate and the third ring plate are provided with a third connecting hole corresponding to the hand hole of the second pipe segment, the second connecting member is connected to the hand hole of the first pipe segment and the second connecting hole of the first ring plate and the second ring plate, and the third connecting member is connected to the hand hole of the second pipe segment and the third connecting hole of the second ring plate and the third ring plate.

[0008] The connecting device for pipe segments with different radii disclosed in the present application comprises a first ring plate, a second ring plate and a third ring plate, which are arranged in sequence and connected to each other by a first connecting member, the first ring plate and the second ring plate are provided with a second connecting member for connecting a pipe segment on one side, and the second ring plate and the third ring plate are provided with a third connecting member for connecting a pipe segment on the other side.

[0009] The connecting method of the connecting device for pipe segments with different radii disclosed in the present application comprises:

[0010] connecting the first pipe segment to the first ring plate and the second ring plate by the second connecting member;

[0011] arranging the first ring plate, the second ring plate and the third ring plate in sequence and connecting them to each other by the first connecting member;

[0012] connecting the second pipe segment to the second ring plate and the third ring plate by the third connecting member.

[0013] Preferably, the first pipe segment is first connected to the first ring plate by the second connecting member;

[0014] then, the first ring plate, the second ring plate and the third ring plate are arranged in sequence and connected to each other by the first connecting member, and the second connecting member is connected to the second ring plate;

[0015] finally, the second pipe segment is connected to the second ring plate and the third ring plate by the third connecting member.

[0016] Preferably, before the first pipe segment is connected to the first ring plate by the second connecting member,

[0017] the rock at the pipe segment connection is treated by spraying concrete, or waterproof material is arranged between the connecting device and the rock at the pipe segment connection.

[0018] Preferably, the first ring plate, the second ring plate and the third ring plate are each made of an arc-shaped segment.

[0019] The arc-shaped segments are spliced into the first ring plate, the second ring plate and the third ring plate at the construction site.

[0020] Preferably, after the connection is completed, the fine stone concrete backfill is carried out in the range of the inverted arch between the first ring plate, the second ring plate and the third ring plate of the connecting device.

[0021] The beneficial effects of the present application are: the connection method can effectively solve the connection problem of the segment with large radius difference during the tunnel mechanical construction; the method is quick and efficient, the connection method matches the segment assembly steps, can effectively reduce the structure conversion time of different radius segments, and quickly realizes the conversion of different radius segment types in the tunnel structure. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a punching schematic diagram of the first ring plate;

[0023] Figure 2 is a punching schematic diagram of the second ring plate;

[0024] Figure 3 is a punching schematic diagram of the third ring plate;

[0025] Figure 4 is a cross-sectional view of the connecting device and the assembled segment;

[0026] Figure 5 is a longitudinal sectional view of the connecting device and the assembled segment;

[0027] Figure 6 is a cross-sectional view of the connecting device and the assembled segment;

[0028] Figure 7 is a longitudinal sectional view of the connecting device and the assembled segment.

[0029] Reference signs: ring plate 1, first ring plate 11, second ring plate 12, third ring plate 13, first connecting piece 2, first connecting hole 21, first segment 3, second segment 4, second connecting piece 5, second connecting hole 51, third connecting piece 6, third connecting hole 61. DETAILED DESCRIPTION

[0030] The present application is further described below.

[0031] As Figure 6 and 7As shown, the assembly structure of different radius pipe segments disclosed in the present application comprises a first pipe segment 3, a second pipe segment 4 and a connecting device, the first pipe segment 3 and the second pipe segment 4 are connected through the connecting device, the connecting device comprises a first ring plate 11, a second ring plate 12 and a third ring plate 13, the first ring plate 11 is matched with the first pipe segment 3, the third ring plate 13 is matched with the second pipe segment 4, the first ring plate 11, the second ring plate 12 and the third ring plate 13 are arranged in sequence and are connected with each other through a first connecting piece 2, the first pipe segment 3 is connected with the first ring plate 11 and the second ring plate 12 through a second connecting piece 5, and the second pipe segment 4 is connected with the second ring plate 12 and the third ring plate 13 through a third connecting piece 6.

[0032] The first pipe segment 3 and the second pipe segment 4 are two adjacent pipe segments, and the two are connected through the connecting device. The first pipe segment 3 and the second pipe segment 4 cannot be directly connected due to different radii, therefore, the connecting device is adopted in the present application. The first ring plate 11 of the connecting device is matched with the first pipe segment 3 so as to be connected with the first pipe segment 3, the third ring plate 13 is matched with the second pipe segment 4 so as to be connected with the second pipe segment 4, the first pipe segment 3 is connected with the first ring plate 11 and the second ring plate 12 through the second connecting piece 5, and the second pipe segment 4 is connected with the second ring plate 12 and the third ring plate 13 through the third connecting piece 6, which not only can make the first pipe segment 3 and the second pipe segment 4 be connected on the second ring plate 12 at the same time, but also can ensure the overall stability of the connection of the first pipe segment 3, the second pipe segment 4 and the connecting device. The first ring plate 11, the second ring plate 12 and the third ring plate 13 are further connected together through the first connecting piece 2, thereby ensuring the connecting strength of the connecting device itself. Each ring plate 1 is usually made of thick steel plate, and composite material with standard strength and toughness can also be used.

[0033] The first connecting piece 2 is used for connecting the three ring plates 1, and can be a connecting block, a connecting plate or the like. In the preferred embodiment of the present application, the first ring plate 11, the second ring plate 12 and the third ring plate 13 are respectively provided with corresponding first connecting holes 21, the first connecting piece 2 is a cylindrical piece, and the first connecting piece 2 is connected to the first connecting holes 21 of the first ring plate 11, the second ring plate 12 and the third ring plate 13 respectively. The cylindrical piece is used to pass through the connecting holes of the ring plates 1 to achieve connection, which has high stability, can connect the first ring plate 11, the second ring plate 12 and the third ring plate 13 together, and is relatively simple to operate. Specifically, the first connecting piece 2 can be connected to the first ring plate 11, the second ring plate 12 and the third ring plate 13 by welding or threaded connection. If welding is used, the first connecting piece 2 can be circumferentially welded to the three ring plates 1, and welding can ensure the connection strength and has higher stability. If threaded connection is used, threaded holes or nuts can be provided on both sides of the first connecting holes 21 of the ring plates 1, and the first connecting piece 2 is provided with corresponding external threads, so as to achieve threaded connection. The threaded connection can quickly connect the first connecting piece 2 to the three ring plates 1, thereby speeding up the construction.

[0034] The second connecting piece 5 and the third connecting piece 6 are used for connecting the segments and the two ring plates 1. Usually, hand holes are provided at the ends of the segments, and the second connecting piece 5 and the third connecting piece 6 can be arranged by using the hand holes. Therefore, in the preferred embodiment of the present application, the ends of the first segment 3 and the second segment 4 are provided with hand holes, the first ring plate 11 and the second ring plate 12 are provided with second connecting holes 51 corresponding to the hand holes of the first segment 3, the second ring plate 12 and the third ring plate 13 are provided with third connecting holes 61 corresponding to the hand holes of the second segment 4, the second connecting piece 5 is connected to the hand holes of the first segment 3 and the second connecting holes 51 of the first ring plate 11 and the second ring plate 12 respectively, and the third connecting piece 6 is connected to the hand holes of the second segment 4 and the third connecting holes 61 of the second ring plate 12 and the third ring plate 13 respectively. The second connecting piece 5 and the third connecting piece 6 can preferably be bolts matched with the hand holes, or can be specially made iron rods or the like. The second connecting piece 5 and the third connecting piece 6 can be connected to the ring plates 1 by welding or bolt connection.

[0035] Based on the above-described assembly structure of the segments with different radii, the present application further provides a connecting device for segments with different radii, which comprises a first ring plate 11, a second ring plate 12 and a third ring plate 13, the first ring plate 11, the second ring plate 12 and the third ring plate 13 are arranged in sequence and connected to each other by a first connecting piece 2, the first ring plate 11 and the second ring plate 12 are connected with a second connecting piece 5 for connecting a segment on one side, and the second ring plate 12 and the third ring plate 13 are provided with a third connecting piece 6 for connecting a segment on the other side.

[0036] This application also provides a connection method using the aforementioned connection device for different radius segments, including:

[0037] The first tube segment 3 is connected to the first ring plate 11 and the second ring plate 12 via the second connector 5;

[0038] The first ring plate 11, the second ring plate 12 and the third ring plate 13 are arranged in sequence and connected to each other by the first connector 2;

[0039] The second segment 4 is connected to the second ring plate 12 and the third ring plate 13 via the third connector 6.

[0040] like Figures 1-3 As shown, in a preferred embodiment of this application, first connecting holes 21 can be correspondingly opened on the first ring plate 11, the second ring plate 12, and the third ring plate 13; second connecting holes 51 can be opened on the first ring plate 11 and the second ring plate 12 corresponding to the hand holes of the first tube segment 3; and third connecting holes 61 can be opened on the second ring plate 12 and the third ring plate 13 corresponding to the hand holes of the second tube segment 4. The first connecting member 2 can be a pipe column, and the second connecting member 5 and the third connecting member 6 can be bolts. The first connecting member 2, the second connecting member 5, and the third connecting member 6 can be connected to the corresponding ring plate 1 by welding, threaded connection, or other methods.

[0041] like Figures 4-5 As shown, in specific operation, the first connecting member 2, the first ring plate 11, the second ring plate 12, and the third ring plate 13 can be used first, then the second connecting member 5 can be used to connect the first tube segment 3, and the third connecting member 6 can be used to connect the second tube segment 4. However, in the preferred embodiment of this application, the first tube segment 3 is first connected to the first ring plate 11 through the second connecting member 5; then the first ring plate 11, the second ring plate 12, and the third ring plate 13 are arranged sequentially and connected to each other through the first connecting member 2, and the second connecting member 5 is connected to the second ring plate 12; then, the second tube segment 4 is connected to the second ring plate 12 and the third ring plate 13 through the third connecting member 6. In this way, the connection operation can be performed more conveniently, thereby ensuring the quality of the connection.

[0042] To reduce water leakage at the connection points, in a preferred embodiment of this application, before connecting the first segment 3 to the first ring plate 11 via the second connector 5, the rock at the segment connection point is treated with shotcrete, or a waterproof material is placed between the connecting device and the rock at the segment connection point. Both shotcrete treatment and the placement of waterproof material can achieve the effect of preventing water seepage.

[0043] Each ring plate 1 can be prefabricated as a ring shape, but due to the large size of the entire ring shape, it is not conducive to transportation, so in the preferred embodiment of the present application, the raw materials of the first ring plate 11, the second ring plate 12 and the third ring plate 13 are all arc-shaped segments; the arc-shaped segments are spliced and welded into the first ring plate 11, the second ring plate 12 and the third ring plate 13 at the construction site. The arc-shaped segments are more conducive to transportation, and when transported to the present use, the required ring plate 1 is formed by splicing and welding.

[0044] In order to improve the connection stability of the connecting device, in the preferred embodiment of the present application, after the connection is completed, fine stone concrete backfilling is carried out in the range of the inverted arch between the first ring plate 11, the second ring plate 12 and the third ring plate 13 of the connecting device. The fine stone concrete can fill the connecting device to ensure its stability.

Claims

1. An assembly of pipe sections of different radii comprising a first pipe section (3), a second pipe section (4) and a connecting device, the first pipe section (3) and the second pipe section (4) being connected by means of the connecting device, characterized in that The connecting device comprises a first ring plate (11), a second ring plate (12) and a third ring plate (13), the first ring plate (11) is matched with the first pipe piece (3), the third ring plate (13) is matched with the second pipe piece (4), the first ring plate (11), the second ring plate (12) and the third ring plate (13) are arranged in sequence and are connected with each other through the first connecting piece (2), the first pipe piece (3) is connected with the first ring plate (11) and the second ring plate (12) through the second connecting piece (5), and the second pipe piece (4) is connected with the second ring plate (12) and the third ring plate (13) through the third connecting piece (6); the connecting mode between the first connecting piece (2) and the first ring plate (11), the second ring plate (12) and the third ring plate (13) is screw connection or welding.

2. The assembled structure of different radius segments as claimed in claim 1, wherein, First connecting holes (21) are formed in the first ring plate (11), the second ring plate (12) and the third ring plate (13) respectively, the first connecting piece (2) is a cylindrical piece, and the first connecting piece (2) is connected in the first connecting holes (21) of the first ring plate (11), the second ring plate (12) and the third ring plate (13) respectively.

3. The assembled structure of different radius panels as claimed in claim 1, wherein, Ends of the first pipe piece (3) and the second pipe piece (4) are provided with hand holes, the first ring plate (11) and the second ring plate (12) are provided with second connecting holes (51) corresponding to the hand holes of the first pipe piece (3), the second ring plate (12) and the third ring plate (13) are provided with third connecting holes (61) corresponding to the hand holes of the second pipe piece (4), the second connecting piece (5) is connected in the hand holes of the first pipe piece (3) and the second connecting holes (51) of the first ring plate (11) and the second ring plate (12) respectively, and the third connecting piece (6) is connected in the hand holes of the second pipe piece (4) and the third connecting holes (61) of the second ring plate (12) and the third ring plate (13) respectively.

4. A connection device for connecting segments of pipes having different radii, characterized in that The connecting device comprises a first ring plate (11), a second ring plate (12) and a third ring plate (13), the first ring plate (11), the second ring plate (12) and the third ring plate (13) are arranged in sequence and are connected with each other through the first connecting piece (2), the first ring plate (11) and the second ring plate (12) are connected with the second connecting piece (5) for connecting one side pipe piece, and the second ring plate (12) and the third ring plate (13) are provided with the third connecting piece (6) for connecting the other side pipe piece.

5. A method of connecting using the connecting device of different radius segments according to claim 4, characterized in that, The connecting device comprises: connecting the first pipe piece (3) with the first ring plate (11) and the second ring plate (12) through the second connecting piece (5); arranging the first ring plate (11), the second ring plate (12) and the third ring plate (13) in sequence and connecting them with each other through the first connecting piece (2); connecting the second pipe piece (4) with the second ring plate (12) and the third ring plate (13) through the third connecting piece (6).

6. The connecting method according to claim 5, wherein the first pipe piece (3) is first connected with the first ring plate (11) through the second connecting piece (5); The first ring plate (11), the second ring plate (12) and the third ring plate (13) are arranged in sequence and connected with each other through the first connecting member (2), and the second connecting member (5) is connected with the second ring plate (12); Then, the second pipe piece (4) is connected with the second ring plate (12) and the third ring plate (13) through the third connecting member (6).

7. The method of joining as defined in claim 6, wherein, Before the first pipe piece (3) is connected with the first ring plate (11) through the second connecting member (5), The rock at the pipe piece connection is treated by spraying concrete, or waterproof material is arranged between the connecting device and the rock at the pipe piece connection.

8. The method of joining as defined in claim 5, wherein, The first ring plate (11), the second ring plate (12) and the third ring plate (13) are all arc segments; The arc segments are spliced and welded into the first ring plate (11), the second ring plate (12) and the third ring plate (13) at the construction site.

9. The method of joining as defined in claim 5 wherein, After the connection is completed, the fine stone concrete is backfilled in the range of the inverted arch between the first ring plate (11), the second ring plate (12) and the third ring plate (13) of the connecting device.

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