Plugging structure and underwater box culvert plugging system and method

Abstract

The invention relates to the technical field of box culverts, in particular to a plugging structure and an underwater box culvert plugging system and method. The plugging structure comprises a plugging piece and a tensioning piece, the plugging piece comprises an end part and two empennages which are integrally formed, a gap interval is formed between the two empennages, at least part of one empennage deviates from the first side of the end part, and at least part of the other empennage deviates from the second side of the end part; a through connecting hole is formed in the end part, the connecting hole is located between the two tail wings, the connecting hole comprises a first opening and a second opening, and the first opening is communicated with the gap interval; the tensioning piece penetrates through the connecting hole, the part, located on the outer side of the first opening, of the tensioning piece is connected with a locking piece, and the part, located on the outer side of the second opening, of the tensioning piece is provided with a clamping piece. The plugging structure is simple in structure and low in manufacturing and mounting cost, can be used for plugging joints in the underwater environment, has a good sealing effect and low mounting difficulty, and can greatly reduce the plugging cost.

Description

Technical Field

[0001] The present invention relates to the technical field of box culverts, and in particular to a leak plugging structure, an underwater box culvert plugging system and a method. Background Art

[0002] Box culverts, such as drainage box culverts, are commonly used water conveyance structures. A culvert can be formed by a number of box culverts connected in sequence. The culvert has a connecting channel inside, which is isolated from the outside world by the outer wall of the box culvert and can be used for water conveyance or pipeline laying. During routine inspection and maintenance, technicians discovered that a built drainage culvert had a leak, which was manifested as bubbles constantly emerging from the bottom of the water; through auxiliary technical means to observe the leakage site, it was found that the leak occurred at the connection between two adjacent box culverts, and the culvert body was not damaged. Further analysis of the cause of the leakage speculated that it may be caused by factors such as foundation settlement, wave impact or construction errors; due to the relatively small size of the connecting channel inside the culvert, it does not have the conditions for continuous plugging operations, and plugging work can only be carried out in the underwater environment outside the box culvert.

[0003] To this end, technical personnel in this field thought of using rubber for sealing. Conventional rubber sealing structures are suitable for land environments. In order to seal and fix the rubber sealing structure, a series of connection work is required. The low visibility in the underwater environment and the constantly moving sea water increase the difficulty of installation, making the originally feasible sealing solutions on shore much more difficult. In order to achieve the required installation accuracy, huge time and labor costs are required. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem in the background technology that conventional rubber plugging in an underwater environment requires huge time and labor costs to achieve the required installation accuracy, and to provide a plugging structure, an underwater box culvert plugging system and method.

[0005] In a first aspect, the present invention provides a leak-proof structure, comprising a plugging member and a tensioning member, wherein: the plugging member comprises an integrally formed end portion and two tail wings, the two tail wings are located on the same side of the end portion, a gap interval is provided between the two tail wings, and: one tail wing at least partially deviates from a first side of the end portion, and the other tail wing at least partially deviates from a second side of the end portion opposite to the first side, and the plugging member is made of rubber with a Shore A hardness greater than or equal to 50 degrees; a penetrating connecting hole is provided on the end portion, the connecting hole is located between the two tail wings, the connecting hole comprises a first opening and a second opening, the first opening is communicated with the gap interval; the tensioning member passes through the connecting hole, a locking member is connected to a portion of the tensioning member located outside the first opening, and a clamping member is provided on a portion of the tensioning member located outside the second opening.

[0006] The present invention provides a leak plugging structure, in which a sealing piece is made of rubber with elastic deformation ability, and a gap interval is provided between two tail wings. Through the deformation ability between the end head section and the tail wings, the tail wings can be retracted toward the gap interval under the pressure of an external force to reduce the maximum lateral spacing between the two tail wings, so that the tail wings can be inserted into a joint whose width is equal to or slightly larger than the width of the end head section along with the end head section; and after being inserted into the joint, the elastic restoring force of the sealing piece can make the tail wings have a tendency to be squeezed toward the corresponding side walls, so that the two tail wings can be respectively attached to the side walls on both sides of the joint, thereby achieving a sealing and water-stopping effect.

[0007] By means of a connecting hole arranged at the end portion and a tensioning piece cooperating with the connecting hole, the plugging piece can be quickly installed; the clamping piece on one side of the tensioning piece can be connected to the existing structure, and the end portion can be restricted from coming out in a direction away from the clamping piece by means of a locking piece arranged on the other side of the tensioning piece; the installation process of the plugging piece can be simplified, making it easy to install in an underwater environment, and also helping to improve the overall stability and reliability of the leak-proof structure.

[0008] The leak-proof structure of the present invention has a simple structure and low manufacturing and installation costs, can be used for sealing joints in underwater environments, has good sealing effects and low installation difficulty, and can significantly reduce the sealing cost.

[0009] Preferably, the locking member is movable along the tensioning member, and an outer diameter of the locking member is larger than a diameter of the first opening.

[0010] Preferably, the locking member is a nut, and the locking member is threadably matched with the tensioning member.

[0011] Preferably, in the cross section of the blocking member: the end portion comprises a large end and a small end, and the tail wing is connected to the large end.

[0012] Preferably, the two tail wings are symmetrically arranged along the axis of the connecting hole; and the outer side surface of the tail wing is connected to the side surface of the end head portion.

[0013] Preferably, the axis of the connecting hole is parallel to the cross section of the end portion; and at least two connecting holes are arranged at intervals along the length direction of the end portion.

[0014] Preferably, the Shore A hardness of the end portion and the tail wing is 55 to 65 degrees.

[0015] Preferably, the angle between the tail wing and the axis of the connecting hole is 5 to 20 degrees.

[0016] In a second aspect, the present invention provides an underwater box culvert plugging system, comprising at least two box culverts and the plugging structure as described above, wherein a seam exists between two adjacent box culverts, the end head and the tail wing are at least partially inserted into the seam, and the two tail wing are respectively pressed against two side walls of the seam; the lateral width of the clamping piece is greater than the width of the seam, and the clamping piece is clamped to the inner side of the box culvert.

[0017] The underwater box culvert plugging system provided by the present invention can achieve rapid plugging of the underwater box culvert at a relatively low cost by using the plugging structure as described above, thereby greatly reducing the plugging cost and achieving a better sealing effect.

[0018] Preferably, in an initial state, a maximum lateral spacing between two outer side surfaces of the tail fins is greater than a width of the seam.

[0019] Preferably, the blocking members are arranged continuously along the length direction of the seam, and the tensioning members are arranged at intervals along the length direction of the seam.

[0020] Preferably, at least two blocking pieces are arranged along the length direction of the joint, and foam boards are filled between adjacent blocking pieces; at least part of the blocking pieces have folded corners adapted to the corners of the box culvert.

[0021] In a third aspect, the present invention provides an underwater box culvert plugging method, using the plugging structure as described above, comprising at least two box culverts, a joint between two adjacent box culverts, the locking member being a nut, and the locking member being threadedly matched with a tensioning member; comprising the following steps:

[0022] S1. Make the tension member pass through the connection hole, and extend one end of the tension member provided with a clamping member from the outside of the joint so that the clamping member is clamped to the inside of the box culvert;

[0023] S2. Move the blocking member relative to the tensioning member until the blocking member is partially inserted into the joint and install the locking member;

[0024] S3. Move the locking member relative to the tensioning member toward the inner side of the culvert, and push the blocking member into the joint through the locking member until the end portion is completely inserted into the joint.

[0025] The present invention provides a box culvert plugging method, which utilizes the movement of a locking piece relative to a tensioning piece to push the plugging piece further into a joint, thereby providing a clear fulcrum for the installation of the plugging piece and reducing the difficulty of underwater installation; the locking piece is a nut, and the plugging piece can be pushed to move by screwing the locking piece, so that the torsional force can replace the push-pull force to push the plugging piece, thereby facilitating the use of a wrench or an electric wrench for installation operations and greatly reducing the difficulty of installation.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention provides a plugging structure, wherein the plugging piece is made of rubber with elastic deformation ability, and there is a gap between the two tail wings. Through the deformation ability between the end head and the tail wing, the tail wing can be compressed into the gap under the pressure of external force to reduce the maximum lateral spacing between the two tail wings, so that the tail wing can be inserted into a joint with a width equal to or slightly larger than the width of the end head along with the end head; and after being inserted into the joint, the elastic recovery force of the plugging piece can make the tail wing have a tendency to be squeezed toward the corresponding side wall, so that the two tail wings can be respectively abutted against the side walls on both sides of the joint to achieve a sealing and water-stopping effect. The plugging piece can be quickly installed by means of a connecting hole provided at the end head and a tensioning piece matched with the connecting hole, and the clamping piece on one side of the tensioning piece can be connected to the existing structure, and the end head can be restricted from being disengaged in the direction away from the clamping piece by means of a locking piece provided on the other side of the tensioning piece; the installation process of the plugging piece can be simplified, making it easy to install in an underwater environment, and also conducive to improving the overall stability and reliability of the plugging structure. The leak-proof structure of the present invention has a simple structure and low manufacturing and installation costs, can be used for sealing joints in underwater environments, has good sealing effects and low installation difficulty, and can significantly reduce the sealing cost.

[0028] 2. The underwater box culvert plugging system provided by the present invention can achieve rapid plugging of the underwater box culvert 3 at a relatively low cost by using the plugging structure as described above, thereby greatly reducing the plugging cost and achieving a better sealing effect.

[0029] 3. The present invention provides a box culvert sealing method, which utilizes the movement of the locking piece relative to the tensioning piece to push the sealing piece further into the joint, which can provide a clear fulcrum for the installation of the sealing piece and reduce the difficulty of underwater installation; the locking piece is a nut, and the sealing piece can be pushed to move by screwing the locking piece, so that the torsional force can replace the push-pull force to push the sealing piece, which is convenient for using a wrench or an electric wrench for installation operations and can greatly reduce the difficulty of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The cross section of the blocking member of the present invention is Figure 1 ;

[0031] Figure 2 The cross section of the blocking member of the present invention is Figure 2 ;

[0032] Figure 3 It is a cross-sectional view of the underwater box culvert plugging system described in Example 2;

[0033] Figure 4 This is a front view of the underwater box culvert plugging system described in Example 3;

[0034] Figure 5It is a cross-sectional view of the underwater box culvert plugging system described in Example 4;

[0035] Figure 6 This is a schematic diagram of the folding angle described in Example 3;

[0036] Figure 7 It is a structural schematic diagram of the underwater box culvert plugging system of the present invention (box culvert cross-section direction);

[0037] Figure 8 It is a cross-sectional view of another form of the blocking member of the present invention.

[0038] Markings in the figure:

[0039] 1-end head;

[0040] 11-first side; 12-second side; 13-large end; 14-small end; 15-connecting hole; 16-first opening; 17-second opening;

[0041] 2-Tail;

[0042] 21-gap interval;

[0043] 3-Box culvert;

[0044] 4-Seams;

[0045] 41 - side wall;

[0046] 5-Tension assembly;

[0047] 51- tensioning member; 52- locking member; 53- pressure plate; 54- clamping member; 55- cushion block;

[0048] 6-Foam board;

[0049] 7-fold;

[0050] 8-Water-stop rubber;

[0051] 9-Crimp assembly. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0053] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0054] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0055] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0056] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0057] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0058] Example 1

[0059] See also Figure 1 , 2 8. A plugging structure provided in this embodiment includes a plugging member and a tensioning member 51, wherein: the plugging member includes an integrally formed end portion 1 and two tail wings 2, the two tail wings 2 are located on the same side of the end portion 1, a gap interval 21 is provided between the two tail wings 2, and: one tail wing 2 at least partially deviates from a first side 11 of the end portion 1, and the other tail wing 2 at least partially deviates from a second side 12 of the end portion 1 opposite to the first side 11, and the plugging member is made of rubber with a Shore A hardness greater than or equal to 50 degrees; a penetrating connecting hole 15 is provided on the end portion 1, the connecting hole 15 is located between the two tail wings 2, the connecting hole 15 includes a first opening 16 and a second opening 17, and the first opening 16 is communicated with the gap interval 21; the tensioning member 51 penetrates the connecting hole 15, the portion of the tensioning member 51 located outside the first opening 16 is connected to a locking member 52, and the portion of the tensioning member 51 located outside the second opening 17 is provided with a clamping member 54.

[0060] The end portion 1 and the tail wing 2 are integrally formed of rubber, which has a certain deformation capacity, so that the end portion 1 and the tail wing 2 can undergo relative deformation under the action of external force. If the relative deformation is within the elastic range, the end portion 1 and the tail wing 2 can return to their original state after deformation.

[0061] The blocking member may be a strip-shaped member. Figure 1 and 2 It is a cross-sectional view of the sealing piece, in which two tail wings 2 are connected to the same side of the end section 1, and a gap section 21 is provided between the two tail wings 2. The gap section 21 can provide a receiving area when the tail wings 2 are opposite to the end section 1. The two tail wings 2 are away from each other at the ends away from the end section 1, and one of the tail wings 2 deviates from the first side 11 in the width direction of the end section 1, and the other tail wing 2 deviates from the second side 12 in the width direction of the end section 1. Through the deformation ability between the end section 1 and the tail wings 2, the tail wings 2 can move toward the gap area under the pressure of external force to reduce the size of the sealing piece in the width direction, so that it can be inserted into the joint 4 whose width is equal to or slightly larger than the width of the end section 1. After being inserted into the joint 4, the restoring force between the end section 1 and the tail wings 2 causes the tail wings 2 to open and extend out of the first side 11 or the second side 12 of the end section 1, and the size of the sealing piece in the width direction is increased, and the tail wings 2 can abut against the side walls 41 on both sides of the joint 4, thereby achieving sealing of the joint 4 through the tail wings 2.

[0062] The end portion 1 is provided with a connecting hole 15 which penetrates through. Figure 1-3As shown, the connecting hole 15 is a straight hole and is located between the two tail wings 2. The connecting hole 15 includes a first opening 16 and a second opening 17, wherein: the first opening 16 is connected to the gap interval 21, and the second opening 17 is connected to the side of the end head 1 away from the tail wing 2; the connecting hole 15 can be used for components such as screws to pass through, thereby assisting in fixing the sealing member through components such as screws, which is beneficial to improving the stability of the sealing member.

[0063] It also includes a tensioning component 5, which includes a tensioning member 51, a locking member 52 and a snap-on member 54, wherein: the tensioning member 51 passes through the connecting hole 15 and its two ends extend out of the first opening 16 and the second opening 17 respectively: on the outside of the second opening 17, the tensioning member 51 is provided with a snap-on member 54, and the snap-on member 54 can be snap-fitted with the existing structure, so as to snap the tensioning member 51 onto the existing structure; on the outside of the first opening 16, that is, in the gap interval 21, the tensioning member 51 is connected with a locking member 52, and the outer diameter of the locking member 52 is larger than the aperture of the first opening 16, so that the locking member 52 can prevent the blocking member from escaping along the tensioning member 51 toward the snap-on member 54.

[0064] For the joint 4 between the box culverts 3, the clamping piece 54 can be clamped on the inner side of the box culvert 3 to limit the tensioning piece 51 from moving toward the outside of the joint 4. The sealing piece is at least partially inserted into the joint 4 and the end portion 1 is located between the clamping piece 54 and the locking piece 52. The locking piece 52 can limit the end portion 1 from moving toward the outside of the joint 4, thereby fixing the sealing piece between the joints 4.

[0065] Preferably, a pressure plate 53 can be provided between the locking member 52 and the end portion 1, and the pressure plate 53 can disperse the extrusion force and reduce the probability of the end portion 1 being split. The tension member 51 can be a rod member that matches the shape of the connecting hole 15, and the outer diameter of the tension member 51 can be slightly smaller than the inner diameter of the connecting hole 15. The elastic deformation ability of the blocking member is used to make the tension member 51 and the connecting hole 15 interference fit, thereby improving the sealing effect between the two.

[0066] In this embodiment, the axial direction of the connecting hole 15 is defined as the height direction, for example Figure 2 The Z direction in the figure; the direction parallel to the cross section and perpendicular to the Z direction is defined as the width direction, for example Figure 2 In the X direction.

[0067] See also Figure 1 , 8 The cross-sectional shape of the end portion 1 can be square, circular, triangular, arc-shaped, etc. The first side 11 and the second side 12 are two opposite sides in the width direction of the end portion 1; during installation, the blocking piece is inserted into the seam 4 along its height direction, and the two tail wings 2 extend out from both sides in the width direction of the end portion 1 respectively, so that they can abut against the side walls of the seam 4 through the restoring force.

[0068] Preferably, the Shore A hardness of the sealing member is greater than or equal to 50 degrees.

[0069] Further preferably, the Shore A hardness of the plugging member is 55 to 65 degrees. By using relatively hard rubber, the plugging member can have greater strength, rigidity and elastic recovery force after deformation, so that it can resist water pressure and maintain close contact with the side wall of the joint 4 under the action of water pressure.

[0070] The present embodiment provides a leak-plugging structure, in which the plugging piece is made of rubber with elastic deformation ability, and a gap area 21 is provided between the two tail wings 2. Through the deformation ability between the end section 1 and the tail wings 2, the tail wings 2 can be compressed toward the gap area 21 under the pressure of an external force, so as to reduce the maximum lateral spacing between the two tail wings 2, so that the tail wings 2 can be inserted into the joint 4 with the end section 1 having a width equal to or slightly larger than the width of the end section 1; and after being inserted into the joint 4, the elastic restoring force of the plugging piece can make the tail wings 2 have a tendency to be squeezed toward the corresponding side walls 41, so that the two tail wings 2 can be respectively attached to the side walls 41 on both sides of the joint 4, so as to achieve a sealing and water-stopping effect.

[0071] By means of the connection hole 15 provided in the end portion 1 and the tensioning member 51 cooperating with the connection hole 15, the plugging member can be quickly installed, the snap-in member 54 on one side of the tensioning member 51 can be connected to the existing structure, and the end portion 1 can be restricted from coming out in a direction away from the snap-in member 54 by means of the locking member 52 provided on the other side of the tensioning member 51; the installation process of the plugging member can be simplified, making it easy to install in an underwater environment, and also helping to improve the overall stability and reliability of the leak-proof structure.

[0072] The plugging structure described in this embodiment has a simple structure and low manufacturing and installation costs. It can be used to plug the seams 4 in underwater environments and has good sealing effects and low installation difficulty, which can significantly reduce the plugging costs.

[0073] In one or several preferred embodiments, the locking member 52 can move relative to the tensioning member 51; the distance between the locking member 52 and the snap-in member 54 can be adjusted by the relative movement of the two, thereby adjusting the activity range of the blocking member; during installation, the blocking member can be pushed toward the snap-in member 54 by moving the locking member 52 so that the blocking member can be further inserted into the joint 4. This method uses the locking member 52 as a fulcrum and can reduce the difficulty of underwater installation.

[0074] Preferably, the locking member 52 is a nut, and the locking member 52 is threadably matched with the tensioning member 51 .

[0075] The tensioning member 51 may be provided with an external thread. During installation, the blocking member may be pushed to move by screwing the locking member 52, so that the torsional force can replace the push-pull force to push the blocking member, which can greatly reduce the difficulty of installation.

[0076] In one or several preferred embodiments, in the cross section of the blocking member: the end portion 1 includes a large end 13 and a small end 14 , and the tail wing 2 is connected to the large end 13 .

[0077] See also Figure 1 The cross section of the end portion 1 has a small end 14 with a smaller width and a large end 13 with a larger width. The small end 14 and the large end 13 are arranged opposite to each other, and the tail 2 is connected to the large end 13. When plugging and installing, the small end 14 can be inserted into the joint 4 first. Since the small end 14 is smaller in size, it can be more conveniently and accurately aligned with the joint 4, which helps to reduce the difficulty of installation.

[0078] Preferably, the end portion 1 is a wedge-shaped member, and the width of the end portion 1 decreases continuously from the large end 13 to the small end 14. The continuous reduction in the width of the end portion 1 can make its side wall present a smoothly transitional plane, which can reduce the obstacles encountered when inserting the plugging member under the condition of limited underwater vision, making the installation smoother; the continuous reduction can also reduce the protrusions and angle structures on the plugging member, improve the stress concentration on the plugging member, and reduce the probability of damage during installation.

[0079] Preferably, the two tail wings 2 are symmetrically arranged along the axis of the connecting hole 15 ; the outer side surface of the tail wing 2 is connected to the side surface of the end head 1 .

[0080] See also Figure 1 The outer side surface of the tail 2 is connected to the side surface of the end head 1, which means that there is no platform structure between the two sides, and the outer side surface of the tail 2 and the side surface of the end head 1 are transitioned in an angle or arc shape; this can reduce the protruding structure on the sealing piece and reduce the probability of damage to the sealing piece during installation.

[0081] Preferably, the axis of the connecting hole 15 is parallel to the cross section of the end portion 1 ; at least two connecting holes 15 are arranged at intervals along the length direction of the end portion 1 .

[0082] The length direction [extension direction] of the end portion 1 is the direction of the end portion 1 , which may correspond to the direction of the seam 4 .

[0083] Preferably, the angle between the tail wing 2 and the axis of the connecting hole 15 is 5-20°.

[0084] Preferably, the tensile strength of the blocking piece is greater than or equal to 10 MPa, the elongation at break is greater than or equal to 380%, and the tear strength is greater than or equal to 30 KN / m.

[0085] Example 2

[0086] See also Figure 3-7, An underwater culvert plugging system provided in this embodiment includes at least two culverts 3 and the plugging members described in Embodiment 1. There is a joint 4 between two adjacent culverts 3. The head end 1 and the tail fins 2 are at least partially inserted into the joint 4, and the two tail fins 2 are respectively in close contact with the two side walls 41 of the joint 4; the transverse width of the clamping member 54 is greater than the width of the joint 4, and the clamping member 54 is clamped inside the culvert 3.

[0087] The culvert 3 can be a water intake and drainage culvert. During the conventional construction process, several culverts 3 are connected in an end-to-end docking manner.止水带等结构 can be arranged between two adjacent culverts 3 as needed. Sandbags, rubble, etc. are filled outside the culvert 3 to avoid or reduce the intrusion of seawater and reduce the impact of sea waves. Under some conditions, a joint 4 may be generated between two adjacent built culverts 3. The joint 4 is located between the end faces of the two culverts 3. The joint 4 destroys the sealing between the culverts 3, enabling seawater or other liquids to leak into the interior of the culvert 3, affecting the normal use of the culvert 3; the reasons for the generation of the joint 4 may be: ① uneven settlement of the foundation; ② dislocation of the culvert 3 caused by the sea wave push; ③ damage to the original waterproof structure.

[0088] For reasons ① and ②, the two adjacent culverts 3 may be misaligned, increasing the difficulty of plugging; for this reason, the length of the tail fins 2 can be increased so that the tail fins 2 can lean against the mutually misaligned side walls 41, as Figure 3 shown; cushion blocks 55 can be arranged inside the culvert 3 to level the clamping member.

[0089] The underwater culvert plugging system provided in this embodiment can achieve the rapid plugging of the underwater culvert 3 at a relatively low cost by using the plugging structure described above, greatly reducing the plugging cost and obtaining a good sealing effect.

[0090] Preferably, the maximum transverse distance between the outer sides of the two tail fins 2 in the initial state is greater than the width of the joint 4; the initial state refers to the state where the plugging member is not squeezed and deformed.

[0091] Preferably, the plugging members are arranged continuously along the length direction of the joint 4, and the tension members 51 are arranged at intervals along the length direction of the joint 4.

[0092] The length direction of the joint 4 is usually similar to the shape of "冂". The plugging member can be a continuous strip of "冂" shape, and the continuous strip has a better sealing effect.

[0093] Embodiment 3

[0094] A culvert plugging system provided in this embodiment is different from Embodiment 2 in that at least two plugging members are arranged along the length direction of the joint 4, and a foam board 6 is filled between adjacent plugging members; at least part of the plugging members has a fold angle 7 adapted to the corner of the culvert 3.

[0095] In the box culvert plugging system described in this embodiment, the joint 4 is plugged using several sections of plugging pieces, and the weight and volume of a single plugging piece are greatly reduced, which is convenient for divers to carry and install, and can improve the flexibility of installation.

[0096] See also Figure 4 , 6 , Figure 6 The plugging piece with a folded corner 7 can be installed at the two corners of the box culvert 3, and the straight plugging piece can be installed on the side or top of the box culvert 3; the adjacent plugging pieces can be sealed with a foam board 6 with greater compressibility.

[0097] Example 4

[0098] See also Figure 5 The underwater box culvert sealing system provided in this embodiment, based on embodiment 2 or 3, further includes a water-stop rubber 8 and a crimping assembly 9, the water-stop rubber 8 covers the outside of the sealing piece and the joint 4, and the lateral sides of the water-stop rubber 8 are fixed by the crimping assembly 9.

[0099] The water-stop rubber 8 can be made of rubber with a Shore A hardness of 35 to 45 degrees. The water-stop rubber 8 can be an integral structure extending along the joint 4, or can be composed of several segments. By arranging the water-stop rubber 8 on the outside of the sealing member, the sealing effect can be further improved.

[0100] In some embodiments, the waterproof rubber 8 is provided with a preliminary assembly, which includes a plurality of corresponding preliminary installation parts and nailing parts. The nailing parts can be expansion bolts, and the preliminary installation parts can be strips provided on both sides of the waterproof rubber 8. The strips are integrally formed with the waterproof rubber 8 and protrude from the side of the waterproof rubber 8. The preliminary installation parts are provided with mounting holes, and one end of the nailing parts can be penetrated through the mounting holes and driven into the outer wall of the box culvert 3, so as to quickly position and fix the waterproof rubber 8 in a complex underwater environment to achieve preliminary installation. And: when all the nailing parts cooperate with the preliminary installation parts and are fixed on the box culvert 3, the waterproof rubber 8 is in a tensioned state in the length direction.

[0101] The crimping assembly 9 is used for further fixing and installing the water-stop rubber 8. The crimping assembly 9 may include an anchoring screw, a pressure plate and a nut. The side of the water-stop rubber 8 may be placed between the pressure plate and the culvert 3. Part of the anchoring screw is driven into the culvert 3, and the other part passes through the pressure plate and is connected to the nut. The pressure plate is tightened by the nut, thereby tightening the side of the water-stop rubber 8.

[0102] The present embodiment provides an underwater culvert sealing system, which uses a flexible waterproof rubber 8 to seal the outside of the joint 4. The flexible waterproof rubber 8 has a relatively large deformation ability, can better adapt to the misalignment between the box culverts 3, and cope with the further development of the misalignment of the box culvert 3. The flexible waterproof rubber 8 is relatively light in weight, which is convenient for underwater transportation and positioning and installation. By setting an initial installation structure, the initial installation structure includes initial installation parts and nailing parts. The nailing parts can be used to quickly and conveniently install the initial installation parts and the waterproof rubber 8 on the box culvert 3, and the positioning and tightening process of the waterproof rubber 8 can be performed during the initial installation, which provides an operating reference for the subsequent sealing and fixing of the crimping assembly 9, which is beneficial to reducing the installation difficulty of the crimping assembly 9 and improving the installation accuracy and sealing effect of the waterproof rubber 8. The crimping assembly 9 includes an anchor screw, a pressure plate and a nut. The pressure plate has a larger fastening surface, and has higher fixing strength and better sealing effect than single-point fixation. The water-stop rubber 8 is fixed and installed by squeezing the fixed side with the pressure plate. There is no need to cut or drill holes in the water-stop rubber 8, which can maintain the integrity of the water-stop rubber 8 and reduce the probability of the water-stop rubber 8 during installation and use, which is beneficial to increasing the service life of the leak-proof system.

[0103] Preferably, the initial installation parts are symmetrically arranged on both sides of the water-stop rubber 8, and on the same side, multiple initial installation parts are arranged at intervals, and the interval can be 800-1200 mm.

[0104] In some embodiments, the waterproof rubber 8 is installed by the following steps:

[0105] Step 1: Spread the waterproof rubber 8 and put it on the box culvert 3, so that the waterproof rubber 8 corresponds to the joint 4;

[0106] Step 2: Install the nailing piece from one end to the other end, and when installing the next nailing piece, tighten the water stop rubber 8 in the direction away from the installed nailing piece, and one end of the nailing piece passes through the installation hole and is driven into the outer wall of the box culvert 3;

[0107] Step 3: After all nailing parts are installed, install the crimping assembly 9.

[0108] When installing the crimping assembly 9, the pre-installed parts that hinder the installation can be removed; the installation of the crimping assembly 9 includes the following steps:

[0109] Drive the anchor screw into the outer wall of the box culvert 3, and space the anchor screw from the side of the water-stop rubber 8;

[0110] The pressing plate is sleeved on the anchoring screw, with one side of the pressing plate against the water-stop rubber 8, and a leveling piece is arranged on the other side of the pressing plate, and the leveling piece is located between the pressing plate and the outer wall of the box culvert 3, so that the pressing plate is perpendicular to the anchoring screw;

[0111] Install and tighten the nut from the free end of the anchor screw to make the pressure plate squeeze the water-stop rubber 8.

[0112] By using nailing pieces to penetrate the initial installation pieces and drive them into the outer wall of the box culvert 3, the waterproof rubber 8 can be conveniently and quickly fixed on the box culvert 3. The nailing pieces are installed in sequence from one end to the other, and the waterproof rubber 8 is tightened when installing the next nailing piece. This can make the initially installed waterproof rubber 8 in a tensioned state in the length direction, so that it can fit more closely to the outer wall of the box culvert 3, which is conducive to reducing the wrinkle structure and thus improving the sealing effect. After the installation of the nailing pieces is completed, the crimping assembly 9 is used to press the edge and fix the waterproof rubber 8, which can further improve the connection strength and sealing effect of the waterproof rubber 8 and the box culvert 3.

[0113] Example 5

[0114] The present embodiment provides an underwater box culvert plugging method, using the plugging structure described in Example 1, including at least two box culverts 3, a joint 4 between two adjacent box culverts 3, a locking member 52 being a nut, and the locking member 52 being threadedly matched with the tensioning member 51; and comprising the following steps:

[0115] S1. The tension member 51 passes through the connection hole 15, and one end of the tension member 51 provided with the clamping member 54 extends from the outside of the joint 4 so that the clamping member 54 is clamped to the inside of the box culvert 3;

[0116] S2. Move the blocking member relative to the tensioning member 51 until the blocking member is partially inserted into the seam 4, and install the locking member 52;

[0117] S3. Move the locking member 52 relative to the tensioning member 51 toward the inner side of the culvert 3 , and push the blocking member into the joint 4 through the locking member 52 until the end portion 1 is completely inserted into the joint 4 .

[0118] The present embodiment provides an underwater box culvert plugging method, which utilizes the movement of a locking member 52 relative to a tensioning member 51 to push the plugging member further into the joint 4, thereby providing a clear fulcrum for the installation of the plugging member and reducing the difficulty of underwater installation; the locking member 52 is a nut, and the plugging member can be pushed to move by screwing the locking member 52, so that the torsional force can replace the push-pull force to push the plugging member, thereby facilitating the use of a wrench or an electric wrench for installation operations and greatly reducing the difficulty of installation.

[0119] Example 6

[0120] This embodiment provides an underwater box culvert plugging method, based on the plugging structure described in Example 3, comprising at least two box culverts 3, with a joint 4 between two adjacent box culverts 3;

[0121] The steps include:

[0122] A1. Install the plugging member with the folded corner 7 at the corner of the box culvert 3, and insert the end head 1 and the tail wing 2 at least partially into the joint 4;

[0123] A2. Install the plugging parts on the sides of the box culvert 3 in the order away from the corners of the box culvert 3;

[0124] A3. Install the plugging pieces on the top of the box culvert 3 in sequence from both sides to the middle, and cut the plugging pieces at the middle closing part to adapt to the closing length.

[0125] The present embodiment provides an underwater box culvert sealing method, which, based on the box culvert sealing system as described above, can achieve underwater sealing of the joint 4 at a relatively low cost; installing the sealing parts in sections can reduce the difficulty of the operation; installing the sealing parts in order from the corners to both sides can facilitate the control of the installation accuracy.

[0126] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leak plugging structure, characterized in that: It comprises a blocking member and a tensioning member (51), wherein: The blocking member comprises an integrally formed end portion (1) and two tail wings (2), the two tail wings (2) being located on the same side of the end portion (1), a gap (21) being provided between the two tail wings (2), and: one of the tail wings (2) at least partially deviates from a first side (11) of the end portion (1), and the other of the tail wings (2) at least partially deviates from a second side (12) of the end portion (1) opposite to the first side (11), and the blocking member is made of rubber having a Shore A hardness greater than or equal to 50 degrees; The end portion (1) is provided with a penetrating connection hole (15), the connection hole (15) is located between the two tail wings (2), the connection hole (15) comprises a first opening (16) and a second opening (17), the first opening (16) is in communication with the gap interval (21); The tensioning member (51) passes through the connecting hole (15); the portion of the tensioning member (51) located outside the first opening (16) is connected to a locking member (52); and the portion of the tensioning member (51) located outside the second opening (17) is provided with a clamping member (54).

2. The leak-proof structure according to claim 1, characterized in that: The locking member (52) is movable along the tensioning member (51), and the outer diameter of the locking member (52) is larger than the aperture of the first opening (16).

3. The leak-proof structure according to claim 2, characterized in that: The locking member (52) is a nut, and the locking member (52) is threadably matched with the tensioning member (51); and / or, In the cross section of the blocking member: the end portion (1) comprises a large end (13) and a small end (14), and the tail wing (2) is connected to the large end (13).

4. The leak-proof structure according to claim 1, characterized in that: The two tail wings (2) are symmetrically arranged along the axis of the connecting hole (15); the outer side surface of the tail wing (2) is connected to the side surface of the end head (1); The axis of the connection hole (15) is parallel to the cross section of the end head (1); and at least two of the connection holes (15) are arranged at intervals along the length direction of the end head (1).

5. The leak-proof structure according to claim 1, characterized in that: The Shore A hardness of the end portion (1) and the tail wing (2) is 55 to 65 degrees; and / or, The angle between the tail wing (2) and the axis of the connecting hole (15) is 5 to 20 degrees.

6. An underwater box culvert plugging system, characterized in that: It comprises at least two box culverts (3) and a leak-proof structure as claimed in any one of claims 1 to 5, wherein a joint (4) exists between two adjacent box culverts (3), the end section (1) and the tail wing (2) are at least partially inserted into the joint (4), and the two tail wings (2) are respectively close to the two side walls (41) of the joint (4); the transverse width of the clamping piece (54) is greater than the width of the joint (4), and the clamping piece (54) is clamped to the inner side of the box culvert (3).

7. The underwater box culvert plugging system according to claim 6, characterized in that: In an initial state, the maximum lateral spacing between the outer sides of the two tail wings (2) is greater than the width of the seam (4).

8. The underwater box culvert plugging system according to claim 6, characterized in that: The blocking members are arranged continuously along the length direction of the seam (4), and the tensioning members (51) are arranged at intervals along the length direction of the seam (4).

9. The underwater box culvert plugging system according to claim 6, characterized in that: At least two of the blocking pieces are arranged along the length direction of the joint (4), and foam boards (6) are filled between adjacent blocking pieces; at least some of the blocking pieces have folded corners (7) adapted to the corners of the culvert (3).

10. A method for plugging an underwater box culvert, characterized in that: The plugging structure according to any one of claims 1 to 5 comprises at least two box culverts (3), a joint (4) exists between two adjacent box culverts (3), the locking member (52) is a nut, and the locking member (52) is threadedly matched with the tension member (51); The steps include: S1. The tensioning member (51) is passed through the connecting hole (15), and one end of the tensioning member (51) provided with the clamping member (54) is extended from the outside of the joint (4) so ​​that the clamping member (54) is clamped to the inside of the box culvert (3); S2. Move the blocking member relative to the tension member (51) until the blocking member is partially inserted into the joint (4), and install the locking member (52); S3. Move the locking member (52) relative to the tensioning member (51) toward the inner side of the culvert (3), and push the blocking member into the joint (4) through the locking member (52) until the end portion (1) is completely inserted into the joint (4).

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