Underwater box culvert leaking stopping system, system and construction method

Abstract

The present application relates to box culvert technical field, especially underwater box culvert leak stoppage system, system and construction method. Underwater box culvert leak stoppage system includes: at least two box culverts, there is joint between adjacent box culverts;Sealing zone, sealing in the outside of joint, sealing zone is flexible component;Still include initial installation structure and fixed component, initial installation structure includes multiple corresponding initial installation and expansion bolt, expansion bolt is matched with mounting hole on initial installation, and initial installation is fixed on corresponding box culvert by expansion bolt, when all initial installation and expansion bolt are matched, sealing zone is in tension in length direction. Underwater box culvert leak stoppage system of the present application uses light flexible sealing zone as main sealing component, and reduces the positioning and tensioning construction difficulty of sealing zone by setting initial installation structure, can be more conveniently sealed joint underwater, can greatly shorten construction period and reduce construction cost, has higher popularization value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of box culvert, in particular to an underwater box culvert plugging system, a system and a construction method. BACKGROUND

[0002] Box culvert, for example, water intake and drainage box culvert, is a common water conveying structure. A culvert channel can be formed by a plurality of box culverts connected in sequence. The culvert channel has a communication passage which is isolated from the outside by the outer wall of the box culvert and can be used for water conveying or pipeline laying. During routine maintenance, the technical personnel found that a certain built water intake and drainage culvert channel leaked, which was manifested by continuous bubbles from the bottom of the water; through auxiliary technical means to observe the leakage position, it was found that the leakage occurred at the connection between the two adjacent box culverts, and the culvert body was not damaged.

[0003] Further analysis of the cause of the leakage, it is speculated that it may be caused by factors such as foundation settlement, sea wave impact or construction error; since the size of the communication passage inside the culvert channel is relatively small, it does not have the conditions for continuous plugging operation, and can only be plugged in the underwater environment outside the box culvert; the preliminary 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 influencing factors for underwater concrete pouring, the construction difficulty increases greatly, and it is also difficult to guarantee the pouring quality, and special concrete needs to be used for large-scale pouring, which has high construction cost. The further scheme is to use flat rubber plates and steel plates to plug outside the annular gap, which can better control the construction cost, but the sealing effect of the rubber plate depends on the installation accuracy, and if the installation accuracy cannot be achieved, the plugging effect will be almost lost; and: in order to improve the sealing effect, fixed components with complicated installation are needed, and the constantly impacting water waves in the underwater environment push the rubber plate to shake, which makes it difficult to provide a stable installation environment for the installation of the fixed components, so the expected plugging effect cannot be achieved. SUMMARY

[0004] The purpose of the present application is to overcome the problem that the installation accuracy of underwater plugging using rubber plates cannot be achieved in the background art, and to provide an underwater box culvert plugging system, a system and a construction method.

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

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

[0007] A plugging belt is plugged outside the joint, and the plugging belt is a flexible member;

[0008] The initial installation structure comprises a plurality of corresponding initial installation pieces and expansion bolts, at least two initial installation pieces are arranged on both sides of the sealing band, the expansion bolts are matched with the mounting holes on the initial installation pieces, and the initial installation pieces are fixed on the corresponding box culvert through the expansion bolts, and the sealing band is in a tension state in the length direction when all the initial installation pieces are matched with the expansion bolts;

[0009] The fixed connection assembly comprises a fixed connection bolt, a press-fit plate and a locking nut, the fixed connection bolt is anchored to the box culvert, the fixed connection bolt at least partially protrudes from the outer wall of the box culvert, the press-fit plate is sleeved on the protruding part of the fixed connection bolt, and the locking nut is matched with the fixed connection bolt to fasten the press-fit plate, and the side edge of the sealing band is extruded and fixed between the press-fit plate and the outer wall of the box culvert.

[0010] The underwater box culvert leakage stopping system provided by the application uses a flexible sealing band to seal the outside of the joint, the flexible sealing band has relatively large deformation capacity, can better adapt to the misalignment between the box culverts, and can cope with the further development of the misalignment of the box culverts, the flexible sealing band has relatively light weight, facilitating underwater transportation and positioning installation; the initial installation structure is provided, the initial installation structure comprises initial installation pieces and expansion bolts, the initial installation pieces and the sealing band can be quickly and conveniently initially installed on the box culvert by means of the expansion bolts, the positioning and tensioning process of the sealing band can be performed in the initial installation, and operation basis and a reference for the sealing and fixing of the subsequent fixed connection assembly are provided, which is beneficial to reducing the installation difficulty of the fixed connection assembly and improving the installation precision and sealing effect of the sealing band. The fixed connection assembly comprises a fixed connection bolt, a press-fit plate and a locking nut, the press-fit plate has a large fastening surface, has higher fixing strength and better sealing effect than single-point fixing; the sealing band is fixed and installed in the mode of being extruded and fixed by the press-fit plate, does not need to be cut or holed, can maintain the integrity of the sealing band, reduces the probability of damage of the sealing band in the installation and use process, and is beneficial to improving the service life of the leakage stopping system.

[0011] The underwater box culvert leakage stopping system provided by the application uses a flexible sealing band as the main sealing member, and reduces the positioning and tensioning construction difficulty of the sealing band by providing the initial installation structure, can more conveniently seal the joint underwater, can greatly shorten the construction period and reduce the construction cost, and has high popularization value.

[0012] Preferably, the initial installation piece is integrally formed with the sealing band, and the initial installation piece is a strip protruding from the side surface of the sealing band.

[0013] Integrally forming can improve the connection strength of the two, the initial installation piece is a strip protruding from the side surface of the sealing band, the mounting hole on the initial installation piece can be distinguished from the main body structure of the sealing band, and the influence of the mounting hole on the main body structure strength of the sealing band is reduced.

[0014] Preferably, the sealing band comprises a middle band and edge bands located on both sides of the middle band, the opposite sides of the edge bands are parallel to each other, and the crimping plate extrudes and fixes the edge bands; the initial component is arranged on the side of the edge band away from the middle band.

[0015] The opposite sides of the edge bands are: one side can be attached to the outer wall of the box culvert, and the other side can be attached to the crimping plate, so that the two sides are parallel to each other, facilitating the vertical connection of the crimping plate and the fixing bolt, and facilitating the force transmission between the crimping plate and the fixing bolt.

[0016] Preferably, the middle band is a flat plate structure, and the thickness of the middle band is less than the thickness of the edge band.

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

[0018] Preferably, a connecting hole is arranged on the middle band in the thickness direction, and a tensioning member is further arranged, the tensioning member penetrates through the connecting hole, one end of the tensioning member is clamped to the inner wall of the box culvert, and the other end is located on the side of the middle band away from the joint and connected to a locking member.

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

[0020] Preferably, a pressure bearing plate is arranged between the locking member and the middle band.

[0021] Preferably, the sealing band has a Shore A hardness of 30-50 degrees.

[0022] Preferably, the sealing band comprises at least two sealing band units arranged in the length direction, and a foam plate is filled between adjacent sealing band units.

[0023] In a second aspect, the present application provides an underwater box culvert leakage stopping system, comprising the underwater box culvert leakage stopping system as described above, the sealing band is arranged around the side and top surface of the box culvert, the sealing band is located underwater, and the sealing band comprises a corner which is adapted to the corner shape of the box culvert.

[0024] In a third aspect, the present application provides a construction method for the underwater box culvert leakage stopping system as described above, the sealing band is an integral structure.

[0025] The method comprises the following steps:

[0026] S1. The sealing band is laid and placed on the box culvert, and the sealing band corresponds to the joint;

[0027] S2. Install the expansion bolts in order from one end to the other, and when installing the next expansion bolt, tighten the sealing band away from the side of the installed expansion bolt, one end of the expansion bolt passing through the mounting hole and being driven into the box culvert outer wall;

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

[0029] The construction method of the underwater box culvert leak sealing system provided by the application can preliminarily position and tighten the sealing band through the initial installation structure, can provide an operation basis and a reference for the sealing and fixing of the subsequent fixing assembly, is beneficial to reducing the installation difficulty of the fixing assembly and improving the installation precision and sealing effect of the sealing band, can conveniently and quickly fix the sealing band on the box culvert by using the expansion bolts to pass through the initial installation piece and drive into the box culvert outer wall, can make the initially installed sealing band be in a tensioned state by installing the expansion bolts in order from one end to the other and tightening the sealing band when installing the next expansion bolt, can make the initially installed sealing band more closely abut against the box culvert outer wall, is beneficial to reducing the wrinkle structure, and thus improves the sealing effect, and can further improve the connection strength and sealing effect of the sealing band and the box culvert by using the fixing assembly to press the edge of the sealing band after the expansion bolts are installed.

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

[0031] 1. The underwater box culvert plugging system provided by the present application uses a flexible sealing belt to seal the outside of the joint, the flexible sealing belt has relatively large deformation capacity, can better adapt to the misalignment between the box culverts, and cope with the further development of the misalignment of the box culverts, the flexible sealing belt has relatively light weight, facilitating underwater transportation and positioning installation; by setting the initial installation structure, the initial installation structure includes an initial installation piece and an expansion bolt, the initial installation piece and the sealing belt can be quickly and conveniently installed on the box culvert by using the expansion bolt, and the positioning and tensioning process of the sealing belt can be performed in the initial installation, providing operation basis and reference for the sealing and fixing of the subsequent fixed connection assembly, which is beneficial to reduce the installation difficulty of the fixed connection assembly and improve the installation precision and sealing effect of the sealing belt. The fixed connection assembly includes a fixed connection bolt, a pressure plate and a locking nut, the pressure plate has a large fastening surface, has higher fixing strength and better sealing effect compared with single-point fixing; the sealing belt is fixed and installed by using the pressure plate to extrude and fix the side edge, without cutting or opening the sealing belt, which can maintain the integrity of the sealing belt, reduce the probability of damage to the sealing belt during installation and use, and is beneficial to improve the service life of the plugging system. The underwater box culvert plugging system provided by the present application uses a light and flexible sealing belt as the main sealing component, and reduces the positioning and tensioning construction difficulty of the sealing belt by setting the initial installation structure, which can conveniently seal the joint underwater, can greatly shorten the construction period and reduce the construction cost, and has high popularization value.

[0032] 2. The construction method of the underwater box culvert plugging system provided by the present application, by initially positioning and tensioning the sealing belt through the initial installation structure, operation basis and reference can be provided for the sealing and fixing of the subsequent fixed connection assembly, which is beneficial to reduce the installation difficulty of the fixed connection assembly and improve the installation precision and sealing effect of the sealing belt; by using the expansion bolt to pass through the initial installation piece and punch into the outer wall of the box culvert, the sealing belt can be conveniently and quickly fixed on the box culvert, the expansion bolts are installed in sequence from one end to the other end, and the sealing belt is tensioned when the next expansion bolt is installed, so that the initially installed sealing belt is in a tensioned state, which can be more closely attached to the outer wall of the box culvert, thereby reducing the wrinkle structure and improving the sealing effect; after the expansion bolt is installed, the sealing belt is fixed by using the fixed connection assembly, which can further improve the connection strength and sealing effect of the sealing belt and the box culvert. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The structure schematic view of the underwater box culvert plugging system described in embodiment 1;

[0034] Figure 2 The structure schematic view of the sealing belt described in embodiment 1;

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

[0036] Figure 4Installation cross section of underwater box culvert plugging system as described in Example 1;

[0037] Figure 5 Cross section of plugging belt as described in Example 1;

[0038] Figure 6 Cross section of plugging belt as described in Example 2;

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

[0040] Figure 8 Structural diagram of underwater box culvert plugging system as described in Example 4;

[0041] Figure 9 Structural diagram of underwater box culvert plugging system as described in Example 2;

[0042] Figure 10 Structural diagram of underwater box culvert plugging system as described in Example 5;

[0043] Figure 11 Another structural diagram of underwater box culvert plugging system as described in Example 5.

[0044] Markings in the drawing:

[0045] 1 - Box culvert;

[0046] 2 - Joint;

[0047] 3 - Plugging belt;

[0048] 31 - Initial installation part; 311 - Installation hole; 32 - Middle belt; 321 - Large end; 322 - Small end; 33 - Side belt; 34 - Straight section; 35 - Angle; 36 - Expansion bolt;

[0049] 4 - Fastening assembly;

[0050] 41 - Fastening bolt; 42 - Pressing plate; 43 - Lock nut; 44 - Leveling part;

[0051] 5 - Tensioning part;

[0052] 51 - Connection hole; 52 - Pressure bearing plate; 53 - Locking part; 54 - Pad;

[0053] 6 - Waterstop rubber;

[0054] 61 - End plate. DETAILED DESCRIPTION

[0055] The present invention will now be described in further detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0056] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of the present invention is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the present invention or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a particular device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on the present invention.

[0057] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but that it can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0058] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing between identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0059] Furthermore, in the description of the embodiments of the present invention, "several", "more than", and "a number of" represent at least two. The number can be any number, such as 2, 3, 4, 5, 6, 7, 8, or 9, and can even exceed nine.

[0060] Moreover, in the description of the technical solutions of the present application, unless otherwise explicitly specified / limited / limited, the terms "set", "install", "connect", "connect", "set", "lay", "arrange" appearing in the description should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, which can be welding, riveting, bolting, screwing, etc. The connection means commonly used in the art. Such connection can be mechanical connection, electrical connection or communication connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication between two elements.

[0061] Embodiment 1

[0062] Please refer to Figures 1-5 The underwater box culvert plugging system provided by the embodiment comprises a joint 2 between two adjacent box culverts 1, and a plugging belt 3 plugged outside the joint 2. The plugging belt 3 is a flexible member, and the width of the plugging belt 3 is greater than the width of the joint 2. The underwater box culvert plugging system further comprises a primary installation structure and a fixed connection assembly 4. The primary installation structure comprises a plurality of primary installation members 31 and expansion bolts 36 arranged correspondingly. At least two primary installation members 31 are arranged on each side of the plugging belt 3. The expansion bolts 36 are matched with mounting holes 311 on the primary installation members 31, and the primary installation members 31 are fixed to the corresponding box culverts 1 through the expansion bolts 36. When all the primary installation members 31 are matched with the expansion bolts 36, the plugging belt 3 is in a tension state in the length direction. The fixed connection assembly 4 comprises a fixed connection bolt 41, a pressing plate 42 and a locking nut 43. The fixed connection bolt 41 is anchored to the box culvert 1, and at least part of the fixed connection bolt 41 protrudes out of the outer wall of the box culvert 1. The pressing plate 42 is sleeved on the protruding part of the fixed connection bolt 41, and the locking nut 43 is matched with the fixed connection bolt 41 to fasten the pressing plate 42. The side edges of the plugging belt 3 are pressed and fixed between the pressing plate 42 and the outer wall of the box culvert 1.

[0063] The box culvert 1 can be a water intake and drainage box culvert. In the conventional construction process, a plurality of box culverts 1 are connected in an end-to-end butt joint manner. A water stop belt and other structures are arranged between the two adjacent box culverts 1 as needed. Bagged stones and blocks are thrown and filled outside the box culvert 1 to avoid or reduce the intrusion of seawater and to reduce the impact of sea waves.

[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 seep into the interior of the box culverts 1, affecting the normal use of the box culverts 1. The reasons for the formation of the joint 2 may be: ① uneven settlement of the foundation; ② misalignment of the box culverts 1 caused by sea waves; and ③ damage to the original water stop structure.

[0065] For reasons ① and ②: the box culverts 1 on both sides of the joint 2 may be misaligned, such as Figure 7As shown, the misalignment causes the unevenness of the side wall at the opening outside the box culvert 1, which increases the difficulty of the later sealing; therefore, the design considers using a flexible sealing band 3 for the later sealing of the joint 2, and the flexible sealing band 3 has a certain deformation ability, which can be more conveniently installed between the mutually misaligned box culverts 1, and also has the ability to cope with the further increase of the misalignment.

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

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

[0068] The initial installation structure is used for the preliminary installation of the sealing band 3, and the initial installation structure includes a plurality of groups of initially installed members 31 and expansion bolts 36 arranged correspondingly, and at least two initially installed members 31 are arranged on both sides of the sealing band 3. The initially installed members 31 can be arranged at intervals along the length direction of the sealing band 3, and the interval can be selected as 1000mm; the initially installed members 31 can be provided with mounting holes 311, and the hole diameter of the mounting holes 311 can be slightly smaller than the outer diameter of the expansion bolts 36, so that the expansion bolts 36 can be expanded when passing through the mounting holes 311 to achieve interference fit, thereby improving the sealing effect. By the way of driving the expansion bolts 36, the sealing band 3 can be quickly positioned and fixed in the underwater complex environment, and when the next expansion bolt 36 is driven, the sealing band 3 between the expansion bolt 36 to be installed and the expansion bolt 36 already installed can be tensioned, so that when all the initially installed members 31 cooperate with the expansion bolts 36, the sealing band 3 can be in a tensioned state; in this way, the wrinkle structure of the sealing band 3 can be reduced, so that the sealing band 3 can be more closely attached to the outer wall of the box culvert 1, which is beneficial to improve the sealing effect.

[0069] The fixed connection assembly 4 is used for the further connection and fixation of the sealing band 3 and the box culvert 1, please refer to Figure 3 , 4, 7, the fixed connection assembly 4 can include a compression plate 42 in the form of a strip, the compression plate 42 is fixed and further sealed by compressing the side edges of the sealing band 3; the length of the compression plate 42 can be selected as 900mm, and the material can be steel; the fixed connection bolt 41 can be anchored on the box culvert 1, and one end of the fixed connection bolt 41 protrudes out of the outer wall of the box culvert 1, the compression plate 42 is provided with an opening and is sleeved on the fixed connection bolt 41, and the sealing band 3 is fastened by rotating the locking nut 43 to lock the compression plate 42.

[0070] Preferably, a leveling member 44 can be arranged on the side of the fixed connection bolt 41 away from the sealing band 3, the leveling member 44 is located between the compression plate 42 and the outer wall of the box culvert 1, and is used for leveling the compression plate 42, so as to better fix the sealing band 3; the fixed connection bolt 41 can be an expansion screw.

[0071] The underwater box culvert leak stoppage system provided by the embodiment uses a flexible sealing band 3 to seal the outside of the joint 2, the flexible sealing band 3 has 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 culverts 1, the flexible sealing band 3 has relatively light weight, facilitating underwater transportation and positioning installation; by arranging the initial installation structure including the initial installation member 31 and the expansion bolt 36, the initial installation member 31 and the sealing band 3 can be quickly and conveniently initially installed on the box culvert 1 by using the expansion bolt 36, and the positioning and tensioning process of the sealing band 3 can be performed in the initial installation, thereby providing an operation basis and a reference for the sealing and fixing of the subsequent fixed connection assembly 4, facilitating reduction of the installation difficulty of the fixed connection assembly 4 and improvement of the installation precision and sealing effect of the sealing band 3. The fixed connection assembly 4 includes the fixed connection bolt 41, the compression plate 42 and the locking nut 43, the compression plate 42 has a large fastening surface, and has higher fixing strength and better sealing effect than single-point fixing; the sealing band 3 is fixed and installed in a manner of being pressed and fixed by the compression plate 42, without cutting or opening the sealing band 3, the integrity of the sealing band 3 can be maintained, the probability of damage to the sealing band 3 in the installation and use process is reduced, and the working life of the leak stoppage system is facilitated to be improved.

[0072] The underwater box culvert leak stoppage system described in the embodiment uses a light and flexible sealing band 3 as a main sealing member, and reduces the positioning and tensioning construction difficulty of the sealing band 3 by arranging the initial installation structure, can more conveniently seal the joint 2 underwater, can greatly shorten the construction period and reduce the construction cost, and has high popularization value.

[0073] Preferably, the initial installation member 31 is integrally formed with the sealing band 3, and the initial installation member 31 is a strip protruding from the side of the sealing band 3.

[0074] Please refer to Figure 2The integral forming can improve the connection strength of the initial mounting part 31 and the sealing band 3. The initial mounting part 31 is a strip protruding from the side of the sealing band 3. The opening on the initial mounting part 31 can be distinguished from the main structure of the sealing band 3, so as to reduce the influence of the mounting hole 311 on the main structure strength of the sealing band 3. When the mounting and fixing assembly 4 is installed, the initial mounting part 31 which hinders the mounting and fixing assembly 4 can be cut off.

[0075] The strips are preferably symmetrically arranged on both sides of the sealing band 3. In the extension direction of the sealing band 3, the distance between the small strips is preferably 800-1200 mm.

[0076] In one or more preferred embodiments, the sealing band 3 comprises a middle band 32 and edge bands 33 located on both sides of the middle band 32. The opposite two sides of the edge band 33 are parallel to each other, and the crimping plate 42 is extruded and fixed to the edge band 33. The initial mounting part 31 is arranged on the side of the edge band 33 away from the middle band 32.

[0077] Among the opposite two sides of the edge band 33: one side can be attached to the outer wall of the box culvert 1, and the other side can be attached to the crimping plate 42, so that the two sides are parallel to each other, facilitating the perpendicular connection of the crimping plate 42 and the fixing bolt 41, and facilitating the force transmission between the crimping plate 42 and the fixing bolt 41.

[0078] Preferably, the middle band 32 is a flat plate structure, and the thickness of the middle band 32 is less than the thickness of the edge band 33.

[0079] Please refer to Figure 5 , the middle band 32 and the edge band 33 are in a stepped shape. On the side close to the joint 2, the surface of the middle band 32 is lower than the surface of the edge band 33, so as to form a spacing interval between the middle band 32 and the outer wall of the box culvert 1, reduce the contact between the middle band 32 and the outer wall of the box culvert 1, and thus reduce the probability of damage to the middle band 32 due to the collision or friction between the box culvert 1 and the middle band 32, and facilitate the crimping and sealing of the edge band 33 and the box culvert 1.

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

[0081] Further preferably, the Shore A hardness of the sealing band 3 is 35-45 degrees; the tensile strength of the sealing band 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] Please refer to Figure 6 , 9In the embodiment 11, the underwater box culvert leak stopping system is different from the embodiment 1 in that, in the thickness direction, the middle strip 32 includes a large end 321 and a small end 322, the large end 321 is connected with the edge strip 33, and the small end 322 protrudes from the edge strip 33 and extends into the joint 2.

[0084] Referring to Figure 6 、 9 The middle strip 32 can have a wedge-shaped structure and include the large end 321 and the small end 322 in the thickness direction, and the width of the large end 321 is greater than that of the small end 322. Since the sealing strip 3 is a flexible member, the small end 322 can be inserted into the joint 2 to form an additional sealing structure, thereby improving the sealing effect of the sealing strip 3 on the joint 2.

[0085] Preferably, the width of the middle strip 32 continuously decreases from the large end 321 to the small end 322, which can adapt to joints 2 of different widths.

[0086] In one or more preferred embodiments, the middle strip 32 is provided with a connecting hole 51 in the thickness direction, and further includes a tensioning member 5 penetrating through the connecting hole 51. One end of the tensioning member 5 is clamped to the inner wall of the box culvert 1, and the other end is located on the side of the middle strip 32 away from the joint 2 and connected with a locking member 53.

[0087] Referring to Figure 9 The tensioning member 5 can apply a pulling force to the middle strip 32 towards the inside of the joint 2 by penetrating through the middle strip 32 and being connected with the locking member 53, so as to partially insert the middle strip 32 into the joint 2 and make the side edges of the middle strip 32 tightly fit the outer edges of the end portion of the box culvert 1, thereby improving the sealing effect of the sealing strip 3.

[0088] Preferably, the tensioning member 5 is a T-shaped screw rod, the T-shaped end of the tensioning member 5 is clamped to 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 is in threaded connection with the locking member 53.

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

[0090] Embodiment 3

[0091] The underwater box culvert leak stopping system provided in the embodiment 3 is based on the embodiments 1 or 2, and the sealing strip 3 includes at least two sealing strip units arranged in the length direction, and the adjacent sealing strip units are filled with a foam plate.

[0092] The length of the single sealing belt unit can be selected as 1500-2500 mm, and is further preferably 2000 mm. The size and weight of the single sealing belt unit are relatively small, which is convenient for divers to drag and install. For the sealing belt 3 having the large end 321 and the small end 322 as described in Embodiment 2, during installation, the middle belt 32 can be inserted into the joint 2 first, and then the edge is pressed using a pressing plate 42 with a length similar to that of the single sealing belt unit. The thickness of the pressing plate 42 can be 10 mm. Two fixed bolts 41 can be arranged every 30 cm, and a foam plate with high compressibility is used to fill between adjacent sealing belt units.

[0093] Embodiment 4

[0094] Referring to Figure 8 The underwater box culvert sealing system provided in the embodiment further comprises a sealing assembly arranged at the joint 2. The sealing assembly comprises a water stop rubber 6 and an end plate 61 arranged outside 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 outside the joint 2 and is fixed by the tensioning member 5 as described in Embodiment 2. The sealing belt 3 is arranged on the side of the water stop rubber 6 and the end plate 61 away from the joint 2.

[0095] For the two adjacent box culverts 1 that are staggered with each other, the water stop rubber 6 is arranged obliquely. The side edges of the water stop rubber 6 are respectively arranged on the outer wall or the end face of the corresponding box culvert 1. The end plate 61 is pulled towards the inside of the joint 2 by the tensioning member 5, so that the water stop rubber 6 is tightly attached to the box culvert 1, thereby improving the sealing effect. A wedge-shaped leveling member can be arranged on the side of the end plate 61 away from the water stop rubber 6 for nut leveling. A cushion 54 can be arranged inside the box culvert 1 to level the tensioning member 5.

[0096] Embodiment 5

[0097] Referring to Figures 10-11 The underwater box culvert sealing system provided in the embodiment further comprises a sealing assembly arranged at the joint 2. The sealing assembly comprises a water stop rubber 6 and an end plate 61 arranged outside 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 outside the joint 2 and is fixed by the tensioning member 5 as described in Embodiment 2. The sealing belt 3 is arranged on the side of the water stop rubber 6 and the end plate 61 away from the joint 2.

[0098] By arranging the corner 35, the sealing belt 3 can be conveniently and tightly attached to the corner of the box culvert 1. The inner side of the corner 35 has the same shape as the outer wall of the corner of the box culvert 1. During installation, the corner 35 can be first attached to the box culvert 1, the initial installation member 31 near the corner 35 is fixed, and then the sealing belt 3 is pulled from both sides and the initial installation member 31 is fixed in the direction away from the corner.

[0099] If the sealing band 3 is composed of several sealing band units, the sealing band unit with the fold angle 35 can be installed first, and then the remaining sealing band units are installed in the direction away from the corner.

[0100] Embodiment 6

[0101] The embodiment provides a construction method of the underwater box culvert plugging system as described in embodiments 1, 2 or 4, and the sealing band 3 is of an integrated structure; the method comprises the following steps:

[0102] S1. The sealing band 3 is laid and placed on the box culvert 1, and the sealing band 3 corresponds to the joint 2;

[0103] S2. The expansion bolts 36 are installed in sequence from one end to the other end, and when the next expansion bolt 36 is installed, the sealing band 3 is pulled in the direction away from the expansion bolt 36 that has been installed on the same side, and one end of the expansion bolt 36 penetrates the mounting hole 311 and is punched into the outer wall of the box culvert 1;

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

[0105] Preferably, when the fixed connection assembly 4 is installed, the following steps are included:

[0106] S31. The fixed connection bolt 41 is punched into the outer wall of the box culvert 1, and the fixed connection bolt 41 is spaced from the side surface of the sealing band 3;

[0107] S32. The crimping plate 42 is sleeved on the fixed connection bolt 41, one side of the crimping plate 42 abuts against the sealing band 3, and the other side of the crimping plate 42 is provided with the leveling piece 44, which 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 fixed connection bolt 41;

[0108] S33. The locking nut 43 is tightened, so that the crimping plate 42 extrudes the sealing band 3.

[0109] The construction method of the underwater box culvert plugging system provided by the embodiment can preliminarily position and pull the sealing band 3 through the initial installation structure, can provide an operation basis and a reference for the sealing and fixing of the subsequent fixed connection assembly 4, is beneficial to reducing the installation difficulty of the fixed connection assembly 4 and improving the installation precision and sealing effect of the sealing band 3, can conveniently and quickly fix the sealing band 3 on the box culvert 1 by penetrating the initial installation piece 31 with the expansion bolt 36 and punching the expansion bolt 36 into the outer wall of the box culvert 1, can make the initially installed sealing band 3 in a tensioned state by installing the expansion bolts 36 in sequence from one end to the other end and pulling the sealing band 3 when the next expansion bolt 36 is installed, so that the sealing band 3 can be more closely attached to the outer wall of the box culvert 1, is beneficial to reducing the wrinkle structure, and thus improves the sealing effect, and can further improve the connection strength and sealing effect of the sealing band 3 and the box culvert 1 by using the fixed connection assembly 4 to press and fix the sealing band 3 after the expansion bolts 36 are installed.

[0110] Embodiment 7

[0111] The box culvert plugging construction method provided in the embodiment is based on the underwater box culvert plugging system as described in Embodiment 3, and comprises the following steps:

[0112] A1. Installing the plugging belt unit with the corner 35;

[0113] A2. Installing the plugging belt units of the side edges of the box culvert 1 in sequence according to the order of being away from the corners of the box culvert 1;

[0114] A3. Installing the plugging belt units of the top of the box culvert 1 in sequence according to the order of being from both sides to the middle, and cutting the plugging belt units of the middle to adapt to the folding length.

[0115] Embodiment 8

[0116] The box culvert plugging construction method provided in the embodiment comprises the following steps:

[0117] B1. Using the long-arm excavator to open the installed ton bag, cleaning the adhering matters on the outer wall surface of the box culvert 1, and checking the concrete damage;

[0118] B2. Unfolding the whole plugging belt 3 at the joint 2 and applying tension at both ends to make the plugging belt 3 straight, positioning and installing the initial installation bolt according to the position of the installation hole 311 on the initial installation piece 31, and initially installing the plugging belt 3 in place;

[0119] B3. Positioning and installing the fixed bolt 41;

[0120] B4. Installing the pressing plate 42 in place by using the locking nut 43, and cutting the initial installation piece 31 affecting the installation.

[0121] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An underwater box culvert plugging system, comprising: The utility model relates to a kind of underwater box culvert leak stoppage systems, including: At least two box culverts (1), there is joint (2) between adjacent the box culvert (1); Sealing tape (3) is sealed outside the joint (2), and the sealing tape (3) is flexible member; Initial installation configuration includes a plurality of corresponding initial installation piece (31) and expansion bolt (36), both sides of the sealing tape (3) are provided with at least two initial installation piece (31), the expansion bolt (36) is cooperated with the mounting hole (311) on the initial installation piece (31), and the initial installation piece (31) is fixed on the corresponding box culvert (1) by the expansion bolt (36), when all initial installation piece (31) is cooperated with the expansion bolt (36), the sealing tape (3) is in tension in length direction; Fixed connection assembly (4) includes fixed connection bolt (41), pressure contact plate (42) and lock nut (43), the fixed connection bolt (41) is anchored to the box culvert (1), the fixed connection bolt (41) at least part of the outer wall of the box culvert (1) is stretched out, the pressure contact plate (42) is set on the stretched out portion of the fixed connection bolt (41), the lock nut (43) is cooperated with the fixed connection bolt (41) and fastens the pressure contact plate (42), and the side edge of the sealing tape (3) is extruded and fixed between the pressure contact plate (42) and the outer wall of the box culvert (1).

2. The underwater box culvert plugging system of claim 1, wherein, The initial installation piece (31) is integrally formed with the sealing tape (3), and the initial installation piece (31) is a strip protruding from the side of the sealing tape (3).

3. The underwater box culvert plugging system of claim 1, wherein, The sealing tape (3) includes a middle tape (32) and edge tapes (33) on both sides of the middle tape (32), the opposite sides of the edge tapes (33) are parallel to each other, and the pressure contact plate (42) extrudes and fixes the edge tapes (33); the initial installation piece (31) is arranged on the side of the edge tape (33) away from the middle tape (32).

4. The underwater box culvert plugging system of claim 3, wherein, The middle tape (32) has a flat structure, and the thickness of the middle tape (32) is less than the thickness of the edge tape (33).

5. The underwater box culvert plugging system of claim 3, wherein, In the thickness direction, the middle tape (32) includes a large end (321) and a small end (322), the large end (321) is connected to the edge tape (33), and the small end (322) protrudes from the edge tape (33) and extends into the joint (2).

6. The underwater box culvert plugging system of claim 5, wherein, The middle tape (32) is provided with a connecting hole (51) in the thickness direction, and further includes a tensioning member (5), the tensioning member (5) penetrates the connecting hole (51), one end of the tensioning member (5) is connected to the inner wall of the box culvert (1), and the other end is located on the side of the middle tape (32) away from the joint (2) and connected to a locking member (53).

7. The underwater box culvert patch repair system of claim 6, wherein, The tensioning member (5) is a T-shaped screw, the T-shaped end of the tensioning member (5) is connected to the inner wall of the box culvert (1), the locking member (53) is a nut, the tensioning member (5) is threadedly connected to the locking member (53), and a pressure plate (52) is arranged between the locking member (53) and the middle tape (32).

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

9. An underwater box culvert plugging system, characterized by, The underwater box culvert sealing system comprises the underwater box culvert sealing system according to any one of claims 1-8, the sealing tape (3) is arranged around the side edges and the top surface of the box culvert (1), the sealing tape (3) is located underwater, and the sealing tape (3) comprises a corner (35) matched with the corner shape of the box culvert (1).

10. A construction method for the underwater box culvert plugging system according to any one of claims 1-8, characterized in that, The sealing tape (3) is of an integrated structure; The method comprises the following steps: S1. The sealing tape (3) is laid and placed on the box culvert (1), and the sealing 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 the next expansion bolt (36) is installed, the sealing tape (3) is pulled away from the expansion bolts (36) installed on the same side, one end of the expansion bolt (36) passes through the mounting hole (311) and is screwed into the outer wall of the box culvert (1); S3. After all the expansion bolts (36) are installed, the fixing assembly (4) is installed: the fixing bolt (41) is screwed into the outer wall of the box culvert (1), the fixing bolt (41) is spaced apart from the side surface of the sealing tape (3), then the pressing plate (42) is sleeved on the fixing bolt (41), one side of the pressing plate (42) abuts against the sealing tape (3), the other side of the pressing plate (42) is provided with a leveling piece (44) to make the pressing plate (42) perpendicular to the fixing bolt (41), and finally the locking nut (43) is tightened to make the pressing plate (42) press the sealing tape (3).

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