Shearing force device of immersed tube joint joint capable of providing ultrahigh shearing resistance

Abstract

The invention relates to the technical field of immersed tube construction, and discloses an immersed tube joint joint shearing force device capable of providing ultrahigh shearing resistance. The number of the clamping frames is two, the two clamping frames are arranged on the close sides of the outer walls of the two immersed tubes correspondingly, and clamping plates are installed on the outer walls of the two clamping frames correspondingly; the two sides of the arch plate are fixedly connected with the close faces of the clamping plates on the two sides correspondingly, and the middle of the arch plate is fixedly connected with a supporting plate. The steel cable penetrates through the clamping frame, the clamping plate and the supporting plate, and the middle of the steel cable is away from the immersed tube and close to the immersed tube. By arranging the steel cables, when the immersed tubes generate displacement under the influence of external force, pulling force caused by displacement can be converted into force for pulling the adjacent immersed tubes to draw close, part of original displacement is counteracted, the effect of converting the acting force direction is achieved, meanwhile, the adjacent immersed tubes are pulled to achieve multi-point cooperative stress, and the displacement resisting capacity of connecting joints is remarkably improved; the overall stability of a pipe sinking system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of immersed tube construction, and in particular to a shearing device for an immersed tube joint capable of providing ultra-high shear resistance. Background Art

[0002] The immersed tube is a pipe structure widely used in the construction of underwater tunnels in oceans, rivers, etc. It is installed underwater through prefabricated pipe sections, and then connected by sinking into the seabed or riverbed. Since immersed tube tunnels are often in a dynamic environment and are subject to external forces such as earthquakes, subsidence or water flow, the immersed tubes may experience longitudinal or lateral displacement at the joints, especially up and down displacement (i.e., inconsistent displacement between the upper and lower pipe sections). This displacement not only affects the structural integrity of the tunnel, but may also cause sealing problems, affecting the safety and service life of the project. Therefore, in order to ensure the stability and normal function of the immersed tube structure, effective measures must be taken to limit the displacement of the immersed tube during construction or after operation, especially to prevent up and down displacement.

[0003] In the existing technology, it is common to use shear keys or concrete shear keys with convex and concave interlocking joints at the immersed tube joints to prevent dislocation. These shear keys are mostly trapezoidal or tooth-shaped designs, and resist vertical shear forces and other external forces through mechanical interlocking. However, the traditional shear key design has certain limitations, especially when facing longitudinal misalignment or displacement caused by earthquakes and settlements, its anti-disalignment ability is insufficient. In addition, the traditional method mainly relies on a single mechanical connection, lacks sufficient flexibility and an effective lateral displacement adjustment mechanism, and cannot effectively address the deformation and misalignment problems that may occur in the immersed tube during long-term use. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a shear device for the immersed tube joint that can provide ultra-high shear resistance, solving the problem that the existing technology relies on a single mechanical connection and cannot effectively absorb the deformation and misalignment that may occur in the immersed tube during long-term use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a shear device for an immersed tube joint that can provide ultra-high shear resistance, comprising:

[0006] Two immersed tubes are provided, and a water stop is provided between the two immersed tubes;

[0007] There are two card frames, and the two card frames are respectively arranged on adjacent sides of the outer walls of the two immersed tubes, and the outer walls of the two card frames are both installed with card plates;

[0008] An arch plate, both sides of which are fixedly connected to adjacent surfaces of the clamping plates on both sides, and a support plate is fixedly connected to the middle of the arch plate;

[0009] The steel cable passes through the clamping frame, the clamping plate and the support plate, and the middle part of the steel cable is away from both sides of the immersed tube and close to the immersed tube.

[0010] Preferably, proximal sides of the outer walls of the two immersed tubes are fixedly connected with protrusions, and proximal sides of the two clamping frames are in contact with distal sides of the protrusions on both sides respectively.

[0011] Preferably, a bolt 1 is installed in the middle of the card plate, the bolt 1 passes through the card frame, and a nut is threadedly connected to one side of the bolt 1.

[0012] Preferably, the clamping plates and the steel cables are provided in plurality, and the plurality of clamping plates and the plurality of steel cables are distributed on the periphery of the clamping frame.

[0013] Preferably, both sides of the steel cable are fixedly connected to limit blocks, and the proximal sides of the limit blocks on both sides are in contact with the distal sides of the clamping plates on both sides respectively.

[0014] Preferably, a limiting frame is provided outside the immersed tube, and the inner wall of the limiting frame is in contact with the outer wall of the immersed tube, the outer walls of the arch plate and the support plate.

[0015] Preferably, a card slot is provided on the inner wall of the limit frame, and the outer walls of the card plate, the arch plate and the support plate are in contact with the inner wall of the card slot.

[0016] Preferably, there are two limit frames, and the cross-sections of the two limit frames are triangular. The two limit frames are respectively located at the top and bottom of the outer wall of the immersed tube, and the inclined surfaces between the two limit frames are in contact with each other. The outer walls of the two limit frames are fixedly connected with connecting blocks, and the connecting blocks on both sides are connected by bolt two, and the outer wall of the bolt two is threaded with a nut.

[0017] Preferably, a convex portion is provided at the bottom of the limiting frame at the top of the outer wall of the immersed tube, and a concave portion is provided at the top of the limiting frame at the bottom of the outer wall of the immersed tube, and the convex portion and the concave portion are engaged with each other.

[0018] Preferably, the limit frame at the bottom of the outer wall of the immersed tube is divided into two to form two semi-limit frames with mutually symmetrical shapes. One side of one semi-limit frame is provided with an insertion rod, and the other is provided with a insertion hole. The insertion rod is located in the insertion hole, and the adjacent sides of the two semi-limit frames are fixedly connected with connecting plates, and the connecting plates on both sides are connected by connecting parts.

[0019] The present invention provides a shear device for an immersed tube joint that can provide ultra-high shear resistance. It has the following beneficial effects:

[0020] 1. The present invention uses steel cables to transmit the force to adjacent immersed tubes through the clamping frame, clamping plate and arch plate when the immersed tube is displaced by external force. Therefore, when the immersed tube on one side is displaced, the steel cables can convert the tension caused by the displacement into a force pulling the adjacent immersed tubes together, thereby offsetting part of the original displacement, achieving the effect of reducing the displacement of the immersed tube and realizing the purpose of converting the direction of the force. At the same time, after pulling the adjacent immersed tubes, the purpose of multi-point coordinated force can also be achieved, which significantly improves the anti-displacement capacity of the connection node and enhances the overall stability of the immersed tube system.

[0021] 2. The present invention sets a limit frame on the outer wall of the immersed tube, and the inner wall of the limit frame is in contact with the clamping plate, arch plate and support plate. After the installation is completed, the limit frame can wrap and position it, and at the same time use its own rigid structure to limit the movement space of the immersed tube in all directions. The two limit frames are arranged relative to each other, and their cross-sections are triangular and the inclined surfaces contact each other, thereby realizing cage-type locking of the immersed tube, thereby effectively enhancing the system's ability to suppress displacement caused by sudden external forces, thereby providing more reliable anti-deformation protection for the immersed tube construction and subsequent operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the immersed tube portion of the present invention;

[0024] Figure 3 This is a partial structural diagram of the limit frame of the present invention;

[0025] Figure 4 This is a partial structural breakdown diagram of the waterstop of the present invention;

[0026] Figure 5 This is a partial structural diagram of the card frame of the present invention;

[0027] Figure 6 This is a partial structural diagram of the steel cable of the present invention;

[0028] Figure 7 It is a schematic diagram of the local structure of the arch plate of the present invention;

[0029] Figure 8 It is a partial structural sectional view of the front side of the arch plate of the present invention.

[0030] Among them, 1. immersed tube; 2. clamping frame; 3. clamping plate; 4. arch plate; 5. support plate; 6. steel cable; 7. limit frame; 8. raised part; 9. water stop; 10. limit block; 11. bolt one; 12. connecting block; 13. bolt two; 14. clamping slot; 15. plug rod; 16. socket; 17. connecting plate; 18. connecting piece; 19. raised part; 20. recessed part. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the specification of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In order to better understand the present invention, the above contents are described in detail below in conjunction with specific embodiments.

[0033] Please see the attached Figure 1 -Attached Figure 8 An embodiment of the present invention provides a shear device of an immersed tube joint that can provide ultra-high shear resistance, including: an immersed tube 1, two immersed tubes 1 are provided, and a waterstop 9 is provided between the two immersed tubes 1; two clamping frames 2 are provided, and the two clamping frames 2 are respectively provided on the adjacent sides of the outer walls of the two immersed tubes 1, and the outer walls of the two clamping frames 2 are both installed with clamping plates 3; an arch plate 4, both sides of which are fixedly connected to the adjacent surfaces of the clamping plates 3 on both sides, and the middle part of the arch plate 4 is fixedly connected to the support plate 5; a steel cable 6, which passes through the clamping frame 2, the clamping plate 3 and the support plate 5, and the middle part of the steel cable 6 is away from the two sides of the immersed tube 1 and close to the immersed tube 1.

[0034] In this embodiment, by installing a card frame 2 on the outside of the immersed tube 1, a mounting position for the card plate 3 can be provided, and by utilizing the steel cable 6, the card plates 3 and the card frame 2 of the immersed tubes 1 on both sides can be connected, and when the immersed tube 1 on one side is displaced, it will pull the steel cable 6 on the side opposite to the moving direction, and when the steel cable 6 is pulled, it will pull the surrounding immersed tubes 1, and the middle part of the steel cable 6 is close to the steel cable 6, so the surrounding immersed tubes 1 can be pulled to make them close to the displaced immersed tube 1, so that the force in the displacement direction of the immersed tube 1 can be converted into a force to pull the surrounding immersed tubes 1 close to the immersed tube 1, thereby achieving the purpose of changing the direction of action of the force and avoiding displacement deviation between two adjacent immersed tubes 1.

[0035] Please see the attached Figure 2 、 Figure 4 、 Figure 6 、 Figure 7 and Figure 8 The proximal sides of the outer walls of the two immersed tubes 1 are fixedly connected with the protrusions 8, and the proximal sides of the two clamping frames 2 are in contact with the distal sides of the protrusions 8 on both sides respectively.

[0036] A bolt 11 is installed in the middle of the card plate 3, which passes through the card frame 2, and a nut is threadedly connected to one side of the bolt 11. Multiple card plates 3 and steel cables 6 are provided, and multiple card plates 3 and multiple steel cables 6 are distributed around the periphery of the card frame 2.

[0037] In this embodiment, the two raised portions 8 on the outer walls of the immersed tubes 1 support and limit the position of the clamping frame 2. During use, the clamping frame 2 and the clamping plates 3 are connected and secured together by bolts 11. Multiple clamping plates 3 and steel cables 6 are distributed along the outer walls of the clamping frame 2, thereby redirecting the forces that cause displacement of the immersed tube 1 along the X, Y, and Z axes. This significantly improves the stability of the immersed tube 1 after installation and prevents excessive displacement.

[0038] Please see the attached Figure 8 Both sides of the steel cable 6 are fixedly connected to the limit blocks 10, and the proximal sides of the limit blocks 10 on both sides are in contact with the distal sides of the clamping plates 3 on both sides respectively.

[0039] In this embodiment, by installing limit blocks 10 on the ends of both sides of the steel cable 6, the steel cable 6 can be locked to prevent it from falling off.

[0040] Please see the attached Figure 1-Figure 3 A limit frame 7 is provided on the outside of the immersed tube 1, and the inner wall of the limit frame 7 contacts the outer wall of the immersed tube 1, the outer wall of the arch plate 4, and the outer wall of the support plate 5. A slot 14 is provided on the inner wall of the limit frame 7, and the outer walls of the retaining plate 3, the arch plate 4, and the support plate 5 all contact the inner wall of the slot 14. Two limit frames 7 are provided, and the cross-sections of the two limit frames 7 are triangular. The two limit frames 7 are respectively located at the top and bottom of the outer wall of the immersed tube 1, and the inclined surfaces between the two limit frames 7 are in contact. The outer walls of the two limit frames 7 are fixedly connected to a connecting block 12. The connecting blocks 12 on both sides are connected by a second bolt 13, and the outer wall of the second bolt 13 is threaded with a nut. The bottom of the limit frame 7 at the top of the outer wall of the immersed tube 1 is provided with a raised portion 19, and the top of the limit frame 7 at the bottom of the outer wall of the immersed tube 1 is provided with a recessed portion 20. The raised portion 19 and the recessed portion 20 engage with each other.

[0041] In this embodiment, by using the limit frame 7 to include the adjacent sides of the two immersed tubes 1 and the card frame 2, card plate 3, arch plate 4 and support plate 5, external debris can be prevented from entering the joints of the immersed tube 1, thereby ensuring the stability and undisturbed working environment of the steel cable 6, and the two triangular limit frames 7 can further limit the displacement of the immersed tube 1 to avoid excessive displacement. At the same time, since the two limit frames 7 at the top and bottom of the outer wall of the immersed tube 1 are respectively provided with a protrusion 19 and a recessed portion 20, and the protrusion 19 and the recessed portion 20 are mutually engaged, when assembling the two limit frames 7 at the top and bottom of the outer wall of the immersed tube 1, the mutual engagement between the protrusion 19 and the recessed portion 20 can be used to correct and guide the position between the two limit frames 7, and the mutual engagement between the protrusion 19 and the recessed portion 20 can provide a force fulcrum for the two after the limit frames 7 are assembled, thereby improving stability.

[0042] Working principle: When in use, first place the limit frame 7 at the bottom of the immersed tube 1, then put the card frame 2 on the outer walls of the two immersed tubes 1, and make the adjacent sides of the two card frames 2 respectively abut the far sides of the outer walls of the two protrusions 8, and then clamp the card plate 3 on the outer walls of the card frames 2 on both sides. After the installation is completed, the bolt 11 is passed through the card frame 2 and the card plate 3, and the nut is installed at the end of the bolt 11. At this time, the card frame 2 and the card plate 3 can be fixed together with the bolt, and then the steel cable 6 is installed. When installing the steel cable 6, the steel cable 6 needs to pass through the card plates 3 and the card frames 2 on both sides, as well as the middle of the support plate 5, and at this time, both sides of the steel cable 6 The ends need to be exposed on the far sides of the clamping plates 3 on both sides, and then the steel cables 6 are tightened, and the limit blocks 10 are installed at the ends of the steel cables 6. After the steel cables 6 around the outer wall of the immersed tube 1 are installed, the two immersed tubes 1 are moved and placed in the limit frames 7 that have been placed, and the clamping plates 3, arch plates 4 and support plates 5 are placed in the clamping grooves 14. At this time, the water stop 9 is installed, and then the limit frame 7 at the top of the immersed tube 1 is put on the top of the immersed tube 1, and the clamping plates 3, arch plates 4 and support plates 5 at the top of the immersed tube 1 are put in the clamping grooves 14. Finally, the bolts 13 are installed to install the connecting blocks 12 on the outer walls of the limit frames 7 on both sides.

[0043] And when one immersed tube 1 is subjected to external force and the position offset occurs with the other immersed tube 1, for example, when the right immersed tube 1 moves upward, the right immersed tube 1 will pull the bottom steel cable 6 to make it subjected to tension, and because the middle part of the steel cable 6 is away from the two sides of the immersed tube 1 and close to the immersed tube 1, at this time, after the right immersed tube 1 moves upward, it pulls the bottom steel cable 6 to generate tension and tendency to move to the right, and at this time, the bottom steel cable 6 will transmit the tension to the left immersed tube through the card plate 3, card frame 2 and protrusion 8 installed on the left immersed tube 1 1, and after the bottom steel cable 6 is pulled, the left immersed tube 1 tends to move to the right, thereby converting the force direction of the immersed tube 1 from the vertical direction to the horizontal direction, avoiding the height difference between the two adjacent immersed tubes 1, and the left immersed tube 1 will also pull the other immersed tubes 1 located on the left side of the right immersed tube 1 close to the right immersed tube 1, so as to resist the upward force of the right immersed tube 1. Similarly, when the right immersed tube 1 displaces in the horizontal direction, it will also pull the steel cable 6 on the side opposite to its displacement direction, thereby realizing the change of the force direction.

[0044] Example 2, based on Example 1, please refer to the attached Figure 3 The limit frame 7 at the bottom of the outer wall of the immersed tube 1 is divided into two, forming two semi-limiting frames 7 with mutually symmetrical shapes. One side of the semi-limiting frame 7 is provided with an insertion rod 15, and the other side is provided with a socket 16. The insertion rod 15 is located in the socket 16, and the adjacent sides of the two semi-limiting frames 7 are fixedly connected with connecting plates 17, and the connecting plates 17 on both sides are connected by connecting members 18.

[0045] In this embodiment, the limit frame 7 at the bottom of the immersed tube 1 is divided into two. Therefore, when placing the limit frame 7 at the bottom of the immersed tube 1, the semi-limit frame 7 is placed first, and then the immersed tube 1 is placed. After the water stop 9 and the card plate 3 and other components on the outside of the immersed tube 1 are installed, the semi-limit frames 7 on both sides are first brought close to each other. Then, when the connecting plates 17 on both sides are in contact, the connecting plates 17 on both sides are connected by the connecting pieces 18, and finally the limit frame 7 at the top of the immersed tube 1 is installed. Therefore, when installing the card plate 3, the internal space of the limit frame 7 at the bottom of the outer wall of the immersed tube 1 is small, which makes the installation of the card plate 3 inconvenient and the construction difficult. In addition, by pre-inserting the end of the insertion rod 15 into the insertion hole 16, when the semi-limit frames 7 on both sides are close to each other, the movement paths of the two can be guided, further improving the convenience of construction.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A shear device for an immersed tube joint that can provide ultra-high shear resistance, characterized in that: include: A submerged tube (1), wherein two submerged tubes (1) are provided, and a water stop (9) is provided between the two submerged tubes (1); Two card frames (2) are provided, and the two card frames (2) are respectively provided on adjacent sides of the outer walls of the two immersed tubes (1), and the outer walls of the two card frames (2) are both installed with card plates (3); An arch plate (4), both sides of which are fixedly connected to adjacent surfaces of the clamping plates (3) on both sides, and a support plate (5) is fixedly connected to the middle of the arch plate (4); A steel cable (6) passes through the clamping frame (2), the clamping plate (3) and the support plate (5), and the middle portion of the steel cable (6) is away from both sides of the immersed tube (1) and close to the immersed tube (1).

2. The shear device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 1, characterized in that: The proximal sides of the outer walls of the two immersed tubes (1) are fixedly connected with protrusions (8), and the proximal sides of the two clamping frames (2) are in contact with the distal sides of the protrusions (8) on both sides respectively.

3. The shear device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 1, characterized in that: A bolt (11) is installed in the middle of the clamping plate (3), the bolt (11) passes through the clamping frame (2), and a nut is threadedly connected to one side of the bolt (11).

4. The shear device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 1, characterized in that: A plurality of the clamping plates (3) and the steel cables (6) are provided, and the plurality of the clamping plates (3) and the plurality of the steel cables (6) are distributed on the periphery of the clamping frame (2).

5. The shear device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 1, characterized in that: Both sides of the steel cable (6) are fixedly connected to the limiting blocks (10), and the proximal sides of the limiting blocks (10) on both sides are in contact with the distal sides of the clamping plates (3) on both sides respectively.

6. The shear device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 1, characterized in that: A limiting frame (7) is provided outside the immersed tube (1), and the inner wall of the limiting frame (7) is in contact with the outer wall of the immersed tube (1), the outer walls of the arch plate (4) and the support plate (5).

7. The shearing device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 6, characterized in that: The inner wall of the limit frame (7) is provided with a card slot (14), and the outer walls of the card plate (3), the arch plate (4) and the support plate (5) are in contact with the inner wall of the card slot (14).

8. The shearing device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 7, characterized in that: Two limit frames (7) are provided, and the cross-sections of the two limit frames (7) are both triangular. The two limit frames (7) are respectively located at the top and bottom of the outer wall of the immersed tube (1), and the inclined surfaces between the two limit frames (7) are in contact with each other. The outer walls of the two limit frames (7) are fixedly connected with a connecting block (12), and the connecting blocks (12) on both sides are connected by a second bolt (13), and the outer wall of the second bolt (13) is threadedly connected with a nut.

9. The shearing device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 8, characterized in that: A raised portion (19) is provided at the bottom of the limiting frame (7) at the top of the outer wall of the immersed tube (1), and a recessed portion (20) is provided at the top of the limiting frame (7) at the bottom of the outer wall of the immersed tube (1), wherein the raised portion (19) and the recessed portion (20) are engaged with each other.

10. The shear force device of the immersed tube joint capable of providing ultra-high shear resistance according to claim 9, characterized in that: The limiting frame (7) at the bottom of the outer wall of the immersed tube (1) is divided into two, forming two mutually symmetrical semi-limiting frames (7). One side of the semi-limiting frame (7) is provided with an insertion rod (15), and the other side is provided with an insertion hole (16). The insertion rod (15) is located in the insertion hole (16), and the adjacent sides of the two semi-limiting frames (7) are fixedly connected with connecting plates (17), and the connecting plates (17) on both sides are connected by a connecting piece (18).

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