Underwater box culvert leaking stoppage system, system and construction method

Abstract

The invention relates to the technical field of box culverts, in particular to an underwater box culvert leaking stoppage system and system and a construction method. The underwater box culvert leaking stoppage system comprises at least two box culverts, and joints exist between the adjacent box culverts; the plugging belt is plugged on the outer side of the joint, and the plugging belt is a flexible component; the device further comprises an initial assembly structure and a fixed connection assembly, the initial assembly structure comprises a plurality of initial assembly parts and expansion bolts which are correspondingly arranged, the expansion bolts are matched with mounting holes in the initial assembly parts, the initial assembly parts are fixed to the corresponding box culverts through the expansion bolts, and when all the initial assembly parts are matched with the expansion bolts, the plugging belt is in a tensioned state in the length direction. According to the underwater box culvert plugging system, the light and flexible plugging belt is used as a main plugging component, the positioning and tensioning construction difficulty of the plugging belt is reduced by arranging the initial assembly structure, joints can be plugged underwater conveniently, the construction period can be greatly shortened, the construction cost can be greatly reduced, and the underwater box culvert plugging system has high popularization value.

Description

Technical Field

[0001] The invention relates to the technical field of box culverts, and in particular to an underwater box culvert leakage plugging system, a system and a construction 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 found 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 leaking site, it was found that the leak occurred at the connection between two adjacent box culverts, and the culvert body was not damaged.

[0003] Further analysis of the cause of the leakage suggests that it may be caused by factors such as foundation settlement, wave impact or construction errors. Since the size of the connecting channel inside the culvert is relatively small, 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. The initial idea is to build a concrete plugging structure around the box culvert outside the connection between the two box culverts, but there are too many factors affecting underwater concrete pouring, which greatly increases the difficulty of construction and makes it difficult to ensure the pouring quality. It is also necessary to use specific concrete for large-scale pouring, which is costly. A further solution is to use flat rubber plates and steel plates to plug the outside of the annular seam. Although the construction cost is better controlled, the sealing effect of the rubber plate is heavily dependent on the installation accuracy. If the installation accuracy cannot be achieved, the plugging effect is almost lost. In addition, in order to improve the sealing effect, it is necessary to use fixed components that are cumbersome to install, and the waves that continuously impact the underwater environment push the rubber plate to shake, making it difficult to provide a stable installation environment for the installation of fixed components, and the expected plugging effect cannot be achieved. Summary of the invention

[0004] The purpose of the present invention is to overcome the problem in the background technology that the installation accuracy of underwater plugging using rubber plates is difficult to achieve, and to provide an underwater box culvert plugging system, system and construction method.

[0005] In a first aspect, the present invention provides an underwater box culvert plugging system, comprising:

[0006] At least two box culverts, with a joint between adjacent box culverts;

[0007] A sealing strip, which is sealed on the outside of the seam, and the sealing strip is a flexible member;

[0008] The initial installation structure includes a plurality of initially installed parts and expansion bolts arranged correspondingly, at least two of the initially installed parts are arranged on both sides of the blocking strip, the expansion bolts are matched with the mounting holes on the initially installed parts, and the initially installed parts are fixed to the corresponding box culverts by the expansion bolts, and when all the initially installed parts are matched with the expansion bolts, the blocking strip is in a tensioned state in the length direction;

[0009] The fixing assembly includes a fixing bolt, a crimping plate and a locking nut. The fixing bolt is anchored to the box culvert. The fixing bolt at least partially extends out of the outer wall of the box culvert. The crimping plate is sleeved on the protruding portion of the fixing bolt. The locking nut cooperates with the fixing bolt to tighten the crimping plate. The side of the sealing band is squeezed and fixed between the crimping plate and the outer wall of the box culvert.

[0010] The present invention provides an underwater box culvert plugging system, which uses a flexible sealing tape to seal the outside of the joint. The flexible sealing tape has a relatively large deformation capacity, can better adapt to the misalignment between box culverts, and cope with the further development of the box culvert misalignment. The flexible sealing tape is relatively light in weight, which is convenient for underwater transportation and positioning installation. By setting an initial installation structure, the initial installation structure includes initial installation parts and expansion bolts. The initial installation parts and the sealing tape can be quickly and conveniently installed on the box culvert using the expansion bolts, and the sealing tape can be positioned and tightened during the initial installation, providing an operating basis and benchmark for the subsequent sealing and fixation of the fixed components, which is beneficial to reducing the installation difficulty of the fixed components and improving the installation accuracy and sealing effect of the sealing tape. The fixing components include fixing bolts, crimping plates and locking nuts. The crimping plates have a larger fastening surface and have higher fixing strength and better sealing effect than single-point fixing. The sealing belt is fixed and installed by squeezing the fixing side with the crimping plate. There is no need to cut or drill holes in the sealing belt, which can maintain the integrity of the sealing belt and reduce the probability of damage to the sealing belt during installation and use, which is beneficial to increasing the service life of the plugging system.

[0011] The underwater box culvert plugging system described in the present invention uses a lightweight and flexible sealing belt as a main sealing component and reduces the difficulty of positioning and tightening the sealing belt by setting an initial installation structure. It can seal joints underwater more conveniently, can greatly shorten the construction period and reduce construction costs, and has a high promotion value.

[0012] Preferably, the initial installation component and the blocking strip are formed integrally, and the initial installation component is a strip protruding from a side surface of the blocking strip.

[0013] One-piece molding can improve the connection strength between the two. The initial installation part is a strip protruding from the side of the sealing strip, which can distinguish the opening on the initial installation part from the main structure of the sealing strip, thereby reducing the influence of the installation hole on the strength of the main structure of the sealing strip.

[0014] Preferably, the sealing band includes a middle band and side bands located on both sides of the middle band, the two opposite sides of the side bands are parallel to each other, and the crimping plate squeezes and fixes the side bands; the initial installation part is arranged on the side of the side band away from the middle band.

[0015] Of the two opposite sides of the edge band: one side can fit the outer wall of the box culvert, and the other side can fit the crimping plate, so that the two sides are parallel to each other, which is convenient for the vertical connection between the crimping plate and the fixing bolts, and is convenient for installation and conducive to the transmission of force between the crimping plate and the fixing bolts.

[0016] Preferably, the middle band is a flat plate structure, and the thickness of the middle band is smaller than the thickness of the side bands.

[0017] Preferably, in the thickness direction, the middle band comprises a large end and a small end, the large end is connected to the side band, and the small end protrudes from the side band and extends into the seam.

[0018] Preferably, the middle belt is provided with a connection hole along the thickness direction, and also includes a tensioning piece, which passes through the connection hole, one end of the tensioning piece is clamped on the inner wall of the culvert, and the other end is located on the side of the middle belt away from the seam and connected to the locking piece.

[0019] Preferably, the tensioning member is a T-shaped screw, the T-shaped end of the tensioning member is clamped on the inner wall of the culvert, the locking member is a nut, and the tensioning member is threadedly matched with the locking member.

[0020] Preferably, a pressure plate is provided between the locking member and the middle belt.

[0021] Preferably, the Shore A hardness of the sealing tape is 30 to 50 degrees.

[0022] Preferably, the blocking tape comprises at least two blocking tape units arranged along the length direction, and foam boards are filled between adjacent blocking tape units.

[0023] In a second aspect, the present invention provides an underwater box culvert plugging system, comprising the underwater box culvert plugging system as described above, wherein the plugging strip is arranged around the side and top surface of the box culvert, the plugging strip is located underwater, and the plugging strip comprises a folded corner adapted to the shape of the box culvert corner.

[0024] In a third aspect, the present invention provides a construction method for the underwater box culvert plugging system as described above, wherein the plugging strip is an integrated structure;

[0025] The steps include:

[0026] S1. Spread the blocking tape and place it on the box culvert, wherein the blocking tape corresponds to the joint;

[0027] S2. Install the expansion bolts in order from one end to the other end, and when installing the next expansion bolt, tighten the blocking tape in a direction away from the expansion bolt installed on the same side, and one end of the expansion bolt passes through the installation hole and is driven into the outer wall of the box culvert;

[0028] S3. After all the expansion bolts are installed, install the fixing assembly: first drive the fixing bolts into the outer wall of the box culvert, with the fixing bolts spaced apart from the side of the blocking strip, then put the crimping plate on the fixing bolts, with one side of the crimping plate against the blocking strip, and set a leveling piece on the other side of the crimping plate to make the crimping plate perpendicular to the fixing bolts, and finally tighten the locking nut to make the crimping plate squeeze the blocking strip.

[0029] The invention provides a construction method for an underwater box culvert plugging system. The method can provide an operating basis and a benchmark for the sealing and fixing of subsequent fixed components through preliminary positioning and tightening of the sealing belt by the initial installation structure, which is beneficial to reducing the installation difficulty of the fixed components and improving the installation accuracy and sealing effect of the sealing belt. The sealing belt can be conveniently and quickly fixed to the box culvert by using expansion bolts to penetrate the initial installation parts and drive them into the outer wall of the box culvert. The expansion bolts are installed in sequence from one end to the other end, and the sealing belt is tightened when the next expansion bolt is installed. This can put the initially installed sealing belt in a tensioned state, so that it can fit more closely to the outer wall of the box culvert, which is beneficial to reducing the wrinkle structure and improving the sealing effect. After the expansion bolts are installed, the sealing belt is fixed by pressing the edges of the fixed components, which can further improve the connection strength and sealing effect between the sealing belt and the box culvert.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. The present invention provides an underwater box culvert plugging system, which uses a flexible sealing tape to seal the outside of the joint. The flexible sealing tape has a relatively large deformation capacity, can better adapt to the misalignment between box culverts, and cope with the further development of the box culvert misalignment. The flexible sealing tape is relatively light in weight, which is convenient for underwater transportation and positioning installation. By setting an initial installation structure, the initial installation structure includes initial installation parts and expansion bolts. The initial installation parts and the sealing tape can be quickly and conveniently installed on the box culvert using the expansion bolts, and the sealing tape can be positioned and tightened during the initial installation, providing an operating basis and benchmark for the subsequent sealing and fixation of the fixed components, which is beneficial to reducing the installation difficulty of the fixed components and improving the installation accuracy and sealing effect of the sealing tape. The fixing assembly includes a fixing bolt, a crimping plate and a locking nut. The crimping plate has a larger fastening surface, and has higher fixing strength and better sealing effect than single-point fixing. The sealing tape is fixed and installed by squeezing the fixing side edge with the crimping plate, and there is no need to cut or open holes in the sealing tape, which can maintain the integrity of the sealing tape, reduce the probability of damage to the sealing tape during installation and use, and help to increase the service life of the plugging system. The underwater box culvert plugging system described in the present invention uses a light and flexible plugging tape as the main plugging component, and reduces the difficulty of positioning and tightening the plugging tape by setting an initial installation structure. It can seal the joints underwater more conveniently, can greatly shorten the construction period and reduce the construction cost, and has a high promotion value.

[0032] 2. The present invention provides a construction method for an underwater box culvert plugging system. The initial positioning and tightening of the sealing belt by the initial installation structure can provide an operating basis and a benchmark for the sealing and fixation of subsequent fixed components, which is beneficial to reducing the installation difficulty of the fixed components and improving the installation accuracy and sealing effect of the sealing belt; by using expansion bolts to penetrate the initial installation parts and drive them into the outer wall of the box culvert, the sealing belt can be conveniently and quickly fixed to the box culvert, and the expansion bolts are installed in sequence from one end to the other end, and the sealing belt is tightened when the next expansion bolt is installed, so that the initially installed sealing belt is in a tensioned state, so that it can fit more closely to the outer wall of the box culvert, which is beneficial to reducing the wrinkle structure and improving the sealing effect; after the expansion bolts are installed, the sealing belt is fixed by pressing the edge of the fixed component, which can further improve the connection strength and sealing effect between the sealing belt and the box culvert. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of the underwater box culvert plugging system described in Example 1;

[0034] Figure 2 This is a schematic diagram of the structure of the blocking tape described in Example 1;

[0035] Figure 3 A top view of the underwater box culvert plugging system described in Example 1;

[0036] Figure 4This is an installation cross-sectional view of the underwater box culvert plugging system described in Example 1;

[0037] Figure 5 is a cross-sectional view of the blocking tape described in Example 1;

[0038] Figure 6 is a cross-sectional view of the blocking strip described in Example 2;

[0039] Figure 7 Another structural schematic diagram of the underwater box culvert plugging system described in Example 1;

[0040] Figure 8 It is a structural schematic diagram of the underwater box culvert plugging system described in Example 4;

[0041] Fig. 9 It is a structural schematic diagram of the underwater box culvert plugging system described in Example 2;

[0042] Fig.10 A structural schematic diagram of the underwater box culvert plugging system described in Example 5;

[0043] Fig.11 Another structural schematic diagram of the underwater box culvert plugging system described in Example 5.

[0044] Markings in the figure:

[0045] 1-Box culvert;

[0046] 2-Seams;

[0047] 3- Sealing tape;

[0048] 31-initial assembly; 311-installation hole; 32-middle belt; 321-large end; 322-small end; 33-edge belt; 34-straight section; 35-angle; 36-expansion bolt;

[0049] 4-Fixed components;

[0050] 41-fixing bolt; 42-pressing plate; 43-locking nut; 44-leveling piece;

[0051] 5- tensioning piece;

[0052] 51-connecting hole; 52-pressure plate; 53-locking member; 54-pad;

[0053] 6-Water-stop rubber;

[0054] 61-End plate. DETAILED DESCRIPTION

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] Example 1

[0062] See also Figure 1-5 The present embodiment provides an underwater box culvert plugging system, comprising a joint 2 between two adjacent box culverts 1, and a plugging strip 3 plugged on the outside of the joint 2, wherein the plugging strip 3 is a flexible member, and the width of the plugging strip 3 is greater than the width of the joint 2; the system also comprises an initial installation structure and a fixing assembly 4, wherein the initial installation structure comprises a plurality of initial installation parts 31 and expansion bolts 36 which are arranged correspondingly, at least two initial installation parts 31 are arranged on both sides of the plugging strip 3, the expansion bolts 36 are matched with the mounting holes 311 on the initial installation parts 31, and the initial installation parts 31 are fixed by the expansion bolts 36. The parts 31 are fixed on the corresponding box culvert 1. When all the initially installed parts 31 cooperate with the expansion bolts 36, the blocking strip 3 is in a tensioned state in the length direction; the fixing assembly 4 includes a fixing bolt 41, a crimping plate 42 and a locking nut 43. The fixing bolt 41 is anchored to the box culvert 1. The fixing bolt 41 at least partially extends out of the outer wall of the box culvert 1. The crimping plate 42 is sleeved on the protruding part of the fixing bolt 41. The locking nut 43 cooperates with the fixing bolt 41 to tighten the crimping plate 42. The side of the blocking strip 3 is squeezed and fixed between the crimping plate 42 and the outer wall of the box culvert 1.

[0063] The box culvert 1 can be a drainage box culvert. During the conventional construction process, several box culverts 1 are connected by end-to-end docking. Waterstop and other structures are arranged between two adjacent box culverts 1 as needed, and bags, stones, etc. are thrown outside the box culvert 1 to avoid or reduce the intrusion of seawater and reduce the impact of wave impact.

[0064] Under certain conditions, a joint 2 may be formed between two adjacent box culverts 1 that have been built. The joint 2 is located between the end faces of the two box culverts 1. The joint 2 destroys the sealing between the box culverts 1, allowing seawater or other liquids to leak into the box culvert 1, affecting the normal use of the box culvert 1. The causes of the joint 2 may be: ① uneven settlement of the foundation; ② the displacement of the box culvert 1 by the movement of waves; ③ damage to the original water-stopping structure.

[0065] For reasons ① and ②: the box culverts 1 on both sides of the joint 2 may be misaligned with each other, such as Figure 7As shown, the side wall of the outer opening of the box culvert 1 is uneven due to the misalignment, which increases the difficulty of subsequent sealing. For this reason, the design considers using a flexible sealing strip 3 for the subsequent sealing of the joint 2. The flexible sealing strip 3 has a certain deformation ability and can be easily installed between the mutually misaligned box culverts 1, and also has the ability to cope with further increase in misalignment.

[0066] The joint 2 is usually a semi-circular shape arranged along the outer wall of the cross section of the box culvert 1. The direction of the semi-circular shape can be defined as the extension direction or length direction of the joint 2, the connection direction of two adjacent box culverts 1 can be defined as the width direction, and the direction from the outside to the inside of the joint 2 can be defined as the thickness direction.

[0067] In the width direction, the size of the blocking strip 3 is larger than the size of the joint 2. Both sides of the blocking strip 3 in the width direction can be connected to two adjacent box culverts 1 to seal the joint 2 to achieve blocking. The blocking strip 3 is a flexible component, which refers to a structural member with relatively obvious deformation ability, such as rubber, polyurethane material or polymer elastomer. The deformation ability of the flexible component can adapt to the misalignment between the box culverts 1 during installation, and can also move with the misalignment of the box culvert 1 to adapt to the further development of the misalignment.

[0068] The initial installation structure is used for the initial installation of the blocking strip 3. The initial installation structure includes multiple groups of corresponding initial installation parts 31 and expansion bolts 36. At least two initial installation parts 31 are arranged on both sides of the blocking strip 3. The initial installation parts 31 can be arranged at intervals along the length direction of the blocking strip 3, and the spacing can be selected to be 1000mm; a mounting hole 311 can be arranged on the initial installation part 31, and the hole diameter of the mounting hole 311 can be slightly smaller than the outer diameter of the expansion bolt 36, so that when the expansion bolt 36 passes through the mounting hole 311, the mounting hole 311 can be enlarged to achieve an interference fit, thereby improving the sealing effect. By driving in the expansion bolts 36, the blocking band 3 can be quickly positioned and fixed in a complex underwater environment. When the next expansion bolt 36 is driven in, the blocking band 3 between the expansion bolt 36 to be installed and the installed expansion bolt 36 can be tensioned, so that when all the initial installation parts 31 are matched with the expansion bolts 36, the blocking band 3 can be in a tensioned state; in this way, the wrinkle structure of the blocking band 3 can be reduced, so that the blocking band 3 can fit more closely to the outer wall of the box culvert 1, which is beneficial to improving the sealing effect.

[0069] The fixing assembly 4 is used for further connection and fixing of the blocking strip 3 and the box culvert 1. Figure 3 , 47. The fixing component 4 may include a strip-shaped crimping plate 42, which fixes and further seals the side of the sealing band 3 by pressing the crimping plate 42; the length of the crimping plate 42 may be selected to be 900 mm, and the material may be steel; the fixing bolt 41 may be anchored on the box culvert 1, and one end of the fixing bolt 41 may extend out of the outer wall of the box culvert 1, the crimping plate 42 is provided with an opening and is sleeved on the fixing bolt 41, and the sealing band 3 is tightened by screwing and locking the crimping plate 42 with a locking nut 43.

[0070] Preferably, a leveling piece 44 can be provided on the side of the fixing bolt 41 away from the blocking strip 3. The leveling piece 44 is located between the crimping plate 42 and the outer wall of the culvert 1 and is used to level the crimping plate 42 so as to better fix the blocking strip 3. The fixing bolt 41 can be an expansion screw.

[0071] The present embodiment provides an underwater box culvert plugging system, which uses a flexible sealing strip 3 to seal the outside of the joint 2. The flexible sealing strip 3 has a relatively large deformation capacity, can better adapt to the misalignment between the box culverts 1, and cope with the further development of the misalignment of the box culvert 1. The flexible sealing strip 3 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 an initial installation part 31 and an expansion bolt 36. The expansion bolt 36 can be used to quickly and conveniently install the initial installation part 31 and the sealing strip 3 on the box culvert 1, and the positioning and tightening process of the sealing strip 3 can be performed during the initial installation, which provides an operating basis and benchmark for the subsequent sealing and fixing of the fixing component 4, which is beneficial to reducing the installation difficulty of the fixing component 4 and improving the installation accuracy and sealing effect of the sealing strip 3. The fixing assembly 4 includes a fixing bolt 41, a crimping plate 42 and a locking nut 43. The crimping plate 42 has a larger fastening surface and has higher fixing strength and better sealing effect than single-point fixation. The crimping plate 42 is used to extrude and fix the side edge to fix the sealing band 3. There is no need to cut or drill holes in the sealing band 3, which can maintain the integrity of the sealing band 3 and reduce the probability of damage to the sealing band 3 during installation and use, which is beneficial to increasing the service life of the plugging system.

[0072] The underwater box culvert plugging system described in this embodiment uses a lightweight and flexible sealing belt 3 as the main sealing component, and reduces the difficulty of positioning and tightening the sealing belt 3 by setting an initial installation structure. It can more conveniently seal the joint 2 underwater, can greatly shorten the construction period and reduce construction costs, and has a high promotion value.

[0073] Preferably, the initial installation component 31 is formed integrally with the blocking strip 3 , and the initial installation component 31 is a strip protruding from the side surface of the blocking strip 3 .

[0074] See also Figure 2The one-piece molding can improve the connection strength between the initial installation part 31 and the blocking strip 3. The initial installation part 31 is a strip protruding from the side of the blocking strip 3, which can distinguish the opening on the initial installation part 31 from the main structure of the blocking strip 3, and reduce the influence of the installation hole 311 on the main structural strength of the blocking strip 3. When installing the fixing component 4, the initial installation part 31 that hinders the fixing component 4 can be cut off.

[0075] The strips are preferably symmetrically arranged on both sides of the blocking strip 3. In the extending direction of the blocking strip 3, the spacing between the small strips is preferably 800 to 1200 mm.

[0076] In one or several preferred embodiments, the sealing band 3 includes a middle band 32 and side bands 33 located on both sides of the middle band 32, the two opposite sides of the side band 33 are parallel to each other, and the crimping plate 42 squeezes and fixes the side band 33; the initial installation part 31 is arranged on the side of the side band 33 away from the middle band 32.

[0077] Of the two opposite sides of the edge band 33: one side can fit the outer wall of the box culvert 1, and the other side can fit the crimping plate 42, so that the two sides are parallel to each other, which is convenient for the vertical connection between the crimping plate 42 and the fixing bolts 41, and is convenient for installation and conducive to the transmission of force between the crimping plate 42 and the fixing bolts 41.

[0078] Preferably, the middle belt 32 is a flat plate structure, and the thickness of the middle belt 32 is smaller than the thickness of the side belt 33 .

[0079] See also Figure 5 The middle belt 32 and the side belt 33 are stepped. On the side close to the joint 2, the surface of the middle belt 32 is lower than the surface of the side belt 33. A spacing interval can be formed between the middle belt 32 and the outer wall of the box culvert 1, reducing the contact between the middle belt 32 and the outer wall of the box culvert 1, thereby reducing the probability of damage to the middle belt 32 due to collision or friction between the box culvert 1 and the middle belt 32, and facilitating the crimping and sealing of the side belt 33 and the box culvert 1.

[0080] Preferably, the blocking band 3 is made of hard rubber, and the Shore A hardness of the blocking band 3 is 30-50 degrees.

[0081] Further preferably, the Shore A hardness of the blocking tape 3 is 35-45 degrees; the tensile strength of the blocking tape 3 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 20 KN / m.

[0082] Example 2

[0083] See also Figure 6 , 911. This embodiment provides an underwater box culvert plugging system, which is based on Embodiment 1 and differs from Embodiment 1 in that: in the thickness direction, the middle band 32 includes a large end 321 and a small end 322, the large end 321 is connected to the side band 33, and the small end 322 protrudes from the side band 33 and extends into the joint 2.

[0084] See also Figure 6 , 9 The middle band 32 can be a wedge-shaped structure, including a large end 321 and a small end 322 in the thickness direction, and the width of the large end 321 is greater than the width of the small end 322. Since the sealing band 3 is a flexible component, an additional sealing structure can be formed by inserting the small end 322 into the seam 2, thereby improving the sealing effect of the sealing band 3 on the seam 2.

[0085] Preferably, the width of the middle band 32 decreases continuously from the large end 321 to the small end 322 ; the continuous decrease can accommodate seams 2 of different widths.

[0086] In one or several preferred embodiments, a connection hole 51 is provided on the middle belt 32 along the thickness direction, and also includes a tensioning piece 5, which passes through the connection hole 51, one end of the tensioning piece 5 is clamped on the inner wall of the culvert 1, and the other end is located on the side of the middle belt 32 away from the seam 2 and is connected to the locking piece 53.

[0087] See also Fig. 9 The tensioning member 5 passes through the middle belt 32 and is connected to the locking member 53, so as to apply a pulling force to the middle belt 32 toward the inner side of the joint 2, thereby partially plugging the middle belt 32 into the joint 2, so that the side edge of the middle belt 32 can fit tightly with the outer edge of the end of the box culvert 1, thereby improving the sealing effect of the sealing belt 3.

[0088] Preferably, the tensioning member 5 is a T-shaped screw, the T-shaped end of the tensioning member 5 is clamped on the inner wall of the box culvert 1, the locking member 53 is a nut, the tensioning member 5 is provided with an external thread, and the tensioning member 5 and the locking member 53 are threadedly matched.

[0089] Further preferably, a pressure plate 52 is provided between the locking member 53 and the middle belt 32; the pressure plate 52 can disperse the extrusion force and reduce the probability of the middle belt 32 splitting due to excessive local pressure; the pressure plate 52 can be a steel plate.

[0090] Example 3

[0091] The present embodiment provides an underwater box culvert plugging system, which is based on the embodiment 1 or 2: the plugging strip 3 includes at least two plugging strip units arranged along the length direction, and foam boards are filled between adjacent plugging strip units.

[0092] The length of a single blocking tape unit can be selected to be 1500-2500 mm, and more preferably 2000 mm. The size and weight of a single blocking tape unit are relatively small, which is convenient for divers to drag and install. For the blocking tape 3 with a large end 321 and a small end 322 as described in Example 2, when installing, the middle tape 32 can be partially stuffed into the seam 2, and then a crimping plate 42 with a length similar to that of a single blocking tape unit can be used for edge pressing. The thickness of the crimping plate 42 can be 10 mm, and two fixing bolts 41 can be set every 30 cm. A foam board with greater compressibility can be used to fill the space between adjacent blocking tape units.

[0093] Example 4

[0094] See also Figure 8 The underwater box culvert plugging system provided in this embodiment is based on the embodiment 1 and also includes a sealing assembly arranged at the joint 2, the sealing assembly includes a water-stop rubber 6 and an end plate 61 located on the outside of the water-stop rubber 6, the width of the water-stop rubber 6 is slightly larger than the width of the joint 2, the water-stop rubber 6 can be sealed on the outside of the joint 2 and fixed by the tensioning member 5 described in the embodiment 2; the sealing belt 3 covers the side of the water-stop rubber 6 and the end plate 61 away from the joint 2.

[0095] For two adjacent box culverts 1 that are displaced from each other, the water-stop rubber 6 is arranged obliquely, and the side edges of the water-stop rubber 6 are respectively pressed against the outer wall or end face of the corresponding box culvert 1. The tensioning member 5 pulls the end plate 61 toward the inside of the joint 2, so that the water-stop rubber 6 is pressed against the box culvert 1 to improve the sealing effect. A wedge-shaped leveling member can be set on the side of the end plate 61 away from the water-stop rubber 6 for nut leveling; a pad 54 can be set inside the box culvert 1 to level the tensioning member 5.

[0096] Example 5

[0097] See also Figure 10-11 The present embodiment provides an underwater culvert plugging system, comprising an underwater culvert plugging system as described in Embodiment 1, 2, 3 or 4, wherein a plugging strip 3 is arranged around the side and top surface of the culvert 1, the plugging strip 3 is located underwater, and the plugging strip 3 comprises a straight section 34 and a corner section arranged along the length direction, the corner section having a corner 35, the corner 35 being adapted to the outer wall shape of the corner of the culvert 1, and the straight section 34 being adapted to the outer wall of the side or top of the culvert 1.

[0098] By setting the folded corner 35, the blocking strip 3 can be conveniently and tightly attached to the corner of the box culvert 1. The inner shape of the folded corner 35 is the same as the outer wall shape of the corner of the box culvert 1. During installation, the folded corner 35 can be first attached to the box culvert 1, and the initial installation part 31 near the folded corner 35 can be fixed. Then, the blocking strip 3 is tightened from both sides respectively, and the initial installation part 31 is fixed in the direction away from the corner.

[0099] If the blocking tape 3 is composed of a plurality of blocking tape units, the blocking tape unit with the folded corner 35 may be installed first, and then the remaining blocking tape units may be installed in a direction away from the corner.

[0100] Example 6

[0101] This embodiment provides a construction method for the underwater box culvert plugging system as described in Embodiment 1, 2 or 4, wherein the plugging belt 3 is an integrated structure; the method comprises the following steps:

[0102] S1. Spread out the blocking tape 3 and put it on the box culvert 1, so that the blocking tape 3 corresponds to the joint 2;

[0103] S2. Install the expansion bolts 36 in order from one end to the other end, and when installing the next expansion bolt 36, tighten the blocking strip 3 in a direction away from the expansion bolt 36 installed on the same side, and one end of the expansion bolt 36 passes through the mounting hole 311 and is driven into the outer wall of the box culvert 1;

[0104] S3. After all expansion bolts 36 are installed, the fixing assembly 4 is installed.

[0105] Preferably, the following steps are included when installing the fixing assembly 4:

[0106] S31. The fixing bolts 41 are driven into the outer wall of the box culvert 1, and the fixing bolts 41 are spaced apart from the side of the blocking strip 3;

[0107] S32. The crimping plate 42 is sleeved on the fixing bolt 41, one side of the crimping plate 42 is against the blocking strip 3, and the other side of the crimping plate 42 is provided with a leveling member 44, the leveling member 44 is located between the crimping plate 42 and the outer wall of the box culvert 1, so that the crimping plate 42 is perpendicular to the fixing bolt 41;

[0108] S33 . Tighten the locking nut 43 to make the crimping plate 42 squeeze the sealing tape 3 .

[0109] The present embodiment provides a construction method for an underwater box culvert plugging system. The initial installation structure is used to preliminarily position and tighten the sealing belt 3, which can provide an operating basis and benchmark for the subsequent sealing and fixing of the fixing component 4, which is beneficial to reducing the installation difficulty of the fixing component 4 and improving the installation accuracy and sealing effect of the sealing belt 3; by using the expansion bolt 36 to pass through the initial installation part 31 and drive it into the outer wall of the box culvert 1, the sealing belt 3 can be conveniently and quickly fixed to the box culvert 1, and the expansion bolts 36 are installed in sequence from one end to the other end, and the sealing belt 3 is tightened when the next expansion bolt 36 is installed, so that the initially installed sealing belt 3 is in a tensioned state, so that it can fit more closely to the outer wall of the box culvert 1, which is beneficial to reducing the wrinkle structure and improving the sealing effect; after the expansion bolt 36 is installed, the fixing component 4 is used to press the edge to fix the sealing belt 3, which can further improve the connection strength and sealing effect of the sealing belt 3 and the box culvert 1.

[0110] Example 7

[0111] The present embodiment provides a box culvert plugging construction method, based on the underwater box culvert plugging system described in Example 3, comprising the following steps:

[0112] A1. Install a blocking tape unit having a folded angle of 35;

[0113] A2. Install the blocking strip units on the side of the box culvert 1 in the order away from the corner of the box culvert 1;

[0114] A3. Install the sealing strip units on the top of the box culvert 1 in order from both sides to the middle, and cut the sealing strip units closed in the middle to adapt to the closing length.

[0115] Example 8

[0116] The present embodiment provides a box culvert plugging construction method, comprising the following steps:

[0117] B1. Use a long-arm excavator to lift the installed ton bags, clean the attachments on the outer wall of box culvert 1, and investigate the damage of concrete;

[0118] B2. Unfold the entire sealing tape 3 and lay it on the joint 2, and apply tension at both ends to straighten the sealing tape 3; locate and install the initial bolts according to the position of the mounting hole 311 on the initial assembly 31, and initially install the sealing tape 3 in place;

[0119] B3. Position and install the fixing bolts 41;

[0120] B4. Use the locking nut 43 to install the crimping plate 42 in place, and cut off the initial installation part 31 that affects the installation.

[0121] 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. An underwater box culvert plugging system, characterized in that: include: At least two box culverts (1), with a joint (2) between adjacent box culverts (1); A sealing strip (3) is sealed on the outside of the joint (2), and the sealing strip (3) is a flexible component; The initial installation structure comprises a plurality of initially installed parts (31) and expansion bolts (36) arranged in correspondence, at least two of the initially installed parts (31) are arranged on both sides of the blocking strip (3), the expansion bolts (36) are matched with the mounting holes (311) on the initially installed parts (31), and the initially installed parts (31) are fixed to the corresponding box culvert (1) by the expansion bolts (36), and when all the initially installed parts (31) are matched with the expansion bolts (36), the blocking strip (3) is in a tensioned state in the length direction; A fixing assembly (4) comprises a fixing bolt (41), a crimping plate (42) and a locking nut (43); the fixing bolt (41) is anchored to the box culvert (1); the fixing bolt (41) at least partially protrudes from the outer wall of the box culvert (1); the crimping plate (42) is sleeved on the protruding portion of the fixing bolt (41); the locking nut (43) cooperates with the fixing bolt (41) to tighten the crimping plate (42); and the side edge of the sealing band (3) is squeezed and fixed between the crimping plate (42) and the outer wall of the box culvert (1).

2. The underwater box culvert plugging system according to claim 1 is characterized in that: The initial installation component (31) is integrally formed with the blocking strip (3), and the initial installation component (31) is a strip protruding from the side surface of the blocking strip (3).

3. The underwater box culvert plugging system according to claim 1 is characterized in that: The blocking band (3) comprises a middle band (32) and side bands (33) located on both sides of the middle band (32); the two opposite side surfaces of the side band (33) are parallel to each other; the crimping plate (42) squeezes and fixes the side band (33); the initial assembly (31) is arranged on a side of the side band (33) away from the middle band (32).

4. The underwater box culvert plugging system according to claim 3 is characterized in that: The middle belt (32) is a flat plate structure, and the thickness of the middle belt (32) is smaller than the thickness of the side belt (33).

5. The underwater box culvert plugging system according to claim 3 is characterized in that: In the thickness direction, the middle band (32) includes a large end (321) and a small end (322), wherein the large end (321) is connected to the side band (33), and the small end (322) protrudes from the side band (33) and extends into the seam (2).

6. The underwater box culvert plugging system according to claim 5 is characterized in that: The middle belt (32) is provided with a connection hole (51) along the thickness direction, and also includes a tensioning member (5), wherein the tensioning member (5) passes through the connection hole (51), one end of the tensioning member (5) is clamped on the inner wall of the culvert (1), and the other end is located on the side of the middle belt (32) away from the seam (2) and is connected to the locking member (53).

7. The underwater box culvert plugging system according to claim 6, characterized in that: The tensioning member (5) is a T-shaped screw rod, the T-shaped end of the tensioning member (5) is clamped on the inner wall of the box culvert (1), the locking member (53) is a nut, and the tensioning member (5) and the locking member (53) are threadedly matched; a pressure plate (52) is provided between the locking member (53) and the middle belt (32).

8. The underwater box culvert plugging system according to any one of claims 1 to 7, characterized in that: The Shore A hardness of the sealing tape (3) is 30 to 50 degrees; and / or, The blocking tape (3) comprises at least two blocking tape units arranged along the length direction, and foam boards are filled between adjacent blocking tape units.

9. An underwater box culvert plugging system, characterized in that: It comprises an underwater culvert plugging system as described in any one of claims 1 to 8, wherein the plugging strip (3) is arranged around the side and top surface of the culvert (1), the plugging strip (3) is located underwater, and the plugging strip (3) comprises a folded corner (35) adapted to the shape of the corner of the culvert (1).

10. A construction method for the underwater box culvert plugging system according to any one of claims 1 to 8, characterized in that: The blocking strip (3) is an integrated structure; The steps include: S1. Spreading the blocking tape (3) and placing it on the box culvert (1), wherein the blocking tape (3) corresponds to the joint (2); S2. The expansion bolts (36) are installed in sequence from one end to the other end, and when installing the next expansion bolt (36), the blocking strip (3) is tightened in a direction away from the expansion bolt (36) installed on the same side, and one end of the expansion bolt (36) passes through the installation hole (311) and is driven into the outer wall of the box culvert (1); S3. After all the expansion bolts (36) are installed, install the fixing assembly (4): first drive the fixing bolt (41) into the outer wall of the box culvert (1), with the fixing bolt (41) spaced apart from the side of the blocking strip (3), then sleeve the crimping plate (42) onto the fixing bolt (41), with one side of the crimping plate (42) abutting against the blocking strip (3), and a leveling piece (44) is provided on the other side of the crimping plate (42) so that the crimping plate (42) is perpendicular to the fixing bolt (41), and finally tighten the locking nut (43) so that the crimping plate (42) squeezes the blocking strip (3).

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