Diversion drainage device for water conservancy project

Abstract

The invention belongs to the technical field of water conservancy equipment and facilities, and provides a diversion drainage device for a water conservancy project, the diversion drainage device comprises a cofferdam, the cofferdam comprises a steel plate and a supporting steel beam, the inner side of the cofferdam is provided with a submersible sewage pump and a drainage pipe, and the submersible sewage pump is arranged on the inner side of a sunken water tank; a plurality of wall hanging grooves distributed in the perimeter direction of the cofferdam are formed in the inner wall of the cofferdam, flow guide channels are formed in the inner sides of the wall hanging grooves and used for guiding leaked water to the sunken water tank, a water outlet wall opening is formed in the wall hanging groove close to the sunken water tank, and a horizontal unwinding assembly is arranged at the bottom of the wall hanging groove and comprises a wire rod used for lifting. One end of the horizontal unwinding assembly penetrates upwards out of the face, attached to the steel plate, of the wall hanging groove, and an anti-disengaging piece matched with the top end of the horizontal unwinding assembly is arranged at the top of the steel plate. The cofferdam is reasonable in design, water leakage on the surface of the cofferdam can be treated, diversion drainage can be achieved, construction safety of the inner side of the cofferdam is facilitated, and the cofferdam is suitable for large-

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy equipment and facilities, and relates to a diversion and drainage device for water conservancy projects. Background Art

[0002] During the construction of water conservancy projects, temporary construction facilities, such as water-retaining cofferdams, are often necessary. The purpose of a cofferdam is to protect the designed location and construction site of a water conservancy structure, preventing water and soil from entering and interfering with construction. This helps expedite foundation pit excavation and concrete pouring while ensuring their quality. Common types of cofferdams include earth-rock cofferdams, concrete cofferdams, steel plate cofferdams, and steel cylinder cofferdams. Once the cofferdam is constructed, the water inside needs to be drained to leave a relatively open area for construction.

[0003] Currently, steel plate cofferdams are constructed by inserting multiple steel plates into the riverbed / seabed, which are then sequentially constructed to form a relatively closed enclosure structure. For example, Chinese invention patent publication number CN118223516A discloses a cofferdam support structure with a quick-disassembly structure, and Chinese invention patent publication number CN113293782A discloses a water-stopping structure for a water conservancy project construction cofferdam and its construction method. These facilities are primarily designed to improve the support effectiveness of the cofferdam's support system to ensure its quality. However, due to the connection points of adjacent steel plates, water leakage is unavoidable. Although the leakage problem can be remedied on-site, it takes a certain amount of time to process. Furthermore, water leaking into the base of the steel plates and the construction site will have some adverse effects on the construction. Furthermore, water leaking into the cofferdam cannot flow to the drainage pump in a timely manner, which will affect the drainage process and increase the difficulty of subsequently dealing with other problems caused by the leakage. Summary of the Invention

[0004] Aiming at the technical problems existing in the leakage and drainage of the above-mentioned steel plate cofferdam, the present invention proposes a water diversion and drainage device for water conservancy projects which has a reasonable design, can handle water leakage on the cofferdam surface, can realize diversion and drainage, and is beneficial to the construction safety inside the cofferdam.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a diversion and drainage device for a water conservancy project provided by the present invention includes a cofferdam, the cofferdam includes several steel plates buckled in sequence, a supporting steel beam, a submersible sewage pump and a drainage pipe are arranged on the inner side of the cofferdam, the drainage pipe drains water from bottom to top, the submersible sewage pump is arranged on the inner side of a sunken water trough, the sunken water trough is arranged at the corner position of the cofferdam, the inner wall of the cofferdam is provided with a plurality of wall-hanging grooves distributed along its circumference direction, the inner side of the wall-hanging groove is a diversion channel and is used to guide leaking water to the sunken water trough, the wall-hanging groove near the sunken water trough is provided with a water outlet wall, the bottom of the wall-hanging groove is provided with a horizontal unwinding assembly, the horizontal unwinding assembly includes a wire for lifting, one end of the horizontal unwinding assembly passes upward from the fitting surface of the wall-hanging groove and the steel plate, and the top of the steel plate is provided with an anti-slip component that cooperates with the top of the horizontal unwinding assembly.

[0006] Preferably, a convex plate that fits with the inner sides of multiple adjacent steel plates is provided on one side of the wall-hanging groove, and an overflow plate with a height smaller than that of the convex plate is provided on the other side of the wall-hanging groove.

[0007] Preferably, the wall hanging groove is a lightweight plate with a groove-shaped structure and is provided with a plurality of internal structure holes therein, and both ends of the internal structure holes pass through both ends of the wall hanging groove.

[0008] Preferably, a wiring groove is provided on the contact surface between the wall hanging groove and the steel plate, and the wiring groove is provided with rolling rollers near the upper and lower ends thereof, and the roller surface of the rolling roller cooperates with the plate surface of the steel plate and the wire of the horizontal unwinding assembly in a rolling contact form.

[0009] Preferably, the horizontal unwinding assembly includes a wire box, a vertical shaft is provided inside the wire box, a wire take-up handle is provided at the shaft end of the vertical shaft, the wire is wound on the vertical shaft, and a pull head is provided at the end of the wire.

[0010] Preferably, the wire box is a square structure and counterweights are provided on multiple sides thereof.

[0011] Preferably, the anti-slip part includes a lifting ear, which is provided with two C-shaped parts spaced apart in the front and back, the C-shaped openings of the two C-shaped parts are arranged in opposite directions left and right, and the central diameter of the C-shaped part is smaller than the diameter of the slider.

[0012] Preferably, an expansion module is provided on the wall-hanging groove, and the expansion module is buckled with the wall-hanging groove and is used to horizontally expand the cross-section of the guide channel.

[0013] Preferably, the expansion module includes a lightweight trough plate, one side of which is provided with a U-shaped buckle, the buckle is buckled with the side guard provided on the wall-hanging groove and the buckling height is smaller than the other side of the lightweight trough plate, and both ends of the lightweight trough plate are provided with blocking plates.

[0014] Preferably, the length of the lightweight trough plate is greater than the length of the wall-hanging trough.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] The present invention provides a diversion and drainage device for water conservancy projects. By setting a wall-hanging trough, water leaking from between steel plates can be directed to a sunken water trough, thereby preventing water from accumulating at the root of the steel plates and in the construction center. The sewage is then discharged from the inner side of the cofferdam by a submersible sewage pump, thereby achieving the purpose of diversion and drainage. The wall-hanging trough can be lowered as the water inside the cofferdam is gradually emptied through the cooperation of a horizontal unwinding assembly and an anti-slip component, making it easy to install the wall-hanging trough and forming an effective fit between the wall-hanging trough and the inner wall of the cofferdam. The present invention has a reasonable design, can handle water leakage on the cofferdam surface, can achieve diversion and drainage, and is beneficial to the safety of construction inside the cofferdam, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 A perspective view of a diversion and drainage device for a water conservancy project provided in an embodiment;

[0019] Figure 2 A cross-sectional view of a diversion and drainage device for a water conservancy project provided in an embodiment;

[0020] Figure 3 for Figure 2 An enlarged schematic diagram of a diversion and drainage device for a water conservancy project at point A;

[0021] Figure 4 A top view of a diversion and drainage device (without supporting steel beams) for a water conservancy project provided in an embodiment;

[0022] Figure 5 A three-dimensional diagram of the steel plate, wall-mounted trough, expansion module, and horizontal unwinding assembly;

[0023] Figure 6 for Figure 5 A magnified schematic diagram of structure B in the middle;

[0024] Figure 7 This is a bottom view of the steel plate, wall hanging trough, expansion module and horizontal unwinding assembly;

[0025] Figure 8This is the main view of the steel plate, wall hanging trough, expansion module and horizontal unwinding assembly;

[0026] Figure 9 This is a cross-sectional view of the steel plate, wall-hanging trough, expansion module and horizontal unwinding assembly in the GG direction;

[0027] Figure 10 for Figure 9 A magnified schematic diagram of the C structure in the middle;

[0028] In the above figures: 1. Cofferdam; 11. Steel plate; 12. Supporting steel beam; 2. Submersible sewage pump; 3. Drain pipe; 4. Sunken water tank; 5. Wall-mounted trough; 51. Water outlet wall; 52. Convex plate; 53. Overflow plate; 54. Internal structural hole; 55. Wire trough; 56. Rolling roller; 57. Side guard; 6. Horizontal unwinding assembly; 61. Wire; 62. Wire box; 63. Vertical shaft; 64. Wire take-up handle; 65. Pull head; 66. Counterweight; 7. Anti-slip part; 71. Lifting ear; 72. C-shaped part; 8. Extension module; 81. Lightweight trough plate; 82. Flip buckle; 83. Blocking plate. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other unless they conflict. For the convenience of description, the words "upper", "lower", "left", and "right" appearing below only indicate the upper, lower, left, and right directions consistent with the drawings themselves and do not limit the structure.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Examples, such as Figures 1-10As shown, the present invention provides a diversion and drainage device for water conservancy projects, including a cofferdam 1, wherein the cofferdam 1 includes a plurality of steel plates 11 that are buckled in sequence, and a supporting steel beam 12, a submersible sewage pump 2, and a drainage pipe 3 are provided on the inner side of the cofferdam 1, and the drainage pipe 3 drains water from bottom to top. Among them, the buckling structure of adjacent steel plates 11 is the existing technology. The present invention preferably adopts a U-shaped buckling design, and the buckling position can be filled with a sealing material commonly used in the cofferdam 1. In addition, the internal support of the supporting steel beam 12 enables the adjacent steel plates 11 to form a relatively continuous and stable cofferdam 1; multiple submersible sewage pumps 2 can be provided, and if they are distributed at the corners of the cofferdam 1, it is convenient for drainage. In order to facilitate drainage, the present invention provides a sunken water tank 4 at the corners of the cofferdam 1, and the submersible sewage pump 2 is provided on the inner side of the sunken water tank 4. The water level of the sunken water tank 4 is lower than the construction level, which is convenient for water flow to converge and discharge water out of the cofferdam 1.

[0032] In order to improve the safety of construction on the inner side of the cofferdam 1, the inner wall of the cofferdam 1 provided by the present invention is provided with a plurality of wall-hanging grooves 5 distributed along its circumference direction. The inner side of the wall-hanging groove 5 is a diversion channel and is used to guide the leaking water to the sunken water tank 4. The wall-hanging groove 5 near the sunken water tank 4 is provided with a water outlet wall 51. The bottom of the wall-hanging groove 5 is provided with a horizontal unwinding assembly 6. The horizontal unwinding assembly 6 includes a wire 61 for lifting and lowering. One end of the horizontal unwinding assembly 6 extends upward from the fitting surface of the wall-hanging groove 5 and the steel plate 11. The top of the steel plate 11 is provided with an anti-slip component 7 that cooperates with the top of the horizontal unwinding assembly 6.

[0033] Specifically, the present invention can guide the water leaking from between the steel plates 11 to the sunken water tank 4 by setting up the wall trough 5, and the sewage is discharged from the inner side of the cofferdam 1 by the submersible sewage pump 2, thereby achieving the purpose of diversion and drainage, preventing water from penetrating to the roots of the steel plates 11 and affecting the stability of the steel plates 11, and also preventing water from accumulating in the main construction area and affecting the construction progress and construction safety. Furthermore, the wall trough 5 provided by the present invention obtains a certain descending function through the cooperation of the horizontal unwinding assembly 6 and the anti-slip member 7. In particular, when the cofferdam 1 is just built, the wall trough 5 can descend as the water inside the cofferdam 1 is gradually emptied, until the wire 61 of the horizontal unwinding assembly 6 is completely released, and the wall trough 5 reaches a preset level, so as to facilitate the installation of the wall trough 5. On the other hand, the wall trough 5 forms an effective fitting relationship with the inner wall of the cofferdam 1, which is conducive to the wall trough 5 to reasonably divert the water leaking from the fastening position of the steel plates 11. Therefore, the present invention is reasonably designed, can handle water leakage on the surface of the cofferdam 1, can realize diversion and drainage, and is beneficial to the construction safety inside the cofferdam 1. It can solve the temporary water leakage problem that occurs in the late stage of the construction of the cofferdam 1, and save more rescue time for temporary sealing and other remedial measures at the leaking location.

[0034] To improve the present invention's ability to address water leakage on the cofferdam 1 surface, the wall-hanging trough 5 provided by the present invention can establish an effective abutment relationship with the steel plates 11. Specifically, the steel plates 11 provided by the present invention are convex structures, and both ends of the steel plates 11 are provided with a circular buckling structure. To match the surface shape of the cofferdam 1 formed after the adjacent steel plates 11 are buckled, one side of the wall-hanging trough 5 in the present invention is provided with a convex plate 52 that fits the inner sides of multiple adjacent steel plates 11, and the other side of the wall-hanging trough 5 is provided with an overflow plate 53 that is shorter in height than the convex plate 52. Among them, the overflow plate 53 is lower than the convex plate 52. On the one hand, it can make the center of gravity deviate toward the direction of the steel plate 11, which is beneficial to improving the stability of the wall-hanging trough 5, and on the other hand, it is convenient to hang the expansion module 8; the convex part of the convex plate 52 is in contact with the outer convex part of the steel plate 11, and the concave part of the convex plate 52 is in contact with the inner convex part of another steel plate 11. The contact surface provides clamping and support in multiple directions for the wall-hanging trough 5 and the cofferdam 1, and the connecting surface between the outer convex part and the inner convex part of the steel plate 11 is the main direction of the leakage problem. Therefore, on the basis of the convex plate 52 establishing a positional relationship with the surface of the cofferdam 1, the wall-hanging trough 5 can receive water leaking from top to bottom as much as possible, so as to better complete the diversion and drainage operation.

[0035] To facilitate the hanging and installation of the wall trough 5, the wall trough 5 provided by the present invention is a lightweight plate material having a trough-shaped structure and is provided with a plurality of internal structural holes 54 therein. The ends of the internal structural holes 54 extend through the ends of the wall trough 5. The lightweight material of the wall trough 5 can be an organic lightweight plate material, such as polystyrene board or polyurethane board. This makes the wall trough 5 relatively light, which helps reduce the load on the wire 61. Moreover, the wall trough 5 can be lowered by buoyancy as the water inside the cofferdam 1 is gradually drained until it reaches a predetermined level, facilitating the installation of the wall trough 5.

[0036] In order to improve the matching performance between the wall trough 5 and the surface of the cofferdam 1, in addition to the external structural design of the wall trough 5, the present invention also provides a wiring trough 55 on the contact surface between the wall trough 5 and the steel plate 11. The wiring trough 55 is provided with rolling rollers 56 near its upper and lower ends. The roller surface of the rolling roller 56 cooperates with the plate surface of the steel plate 11 and the wire 61 of the horizontal unwinding assembly 6 in the form of rolling contact. In this way, the wiring trough 55 is used to reserve wiring space for the wire 61, so that the wall trough 5 and the surface of the cofferdam 1 are better attached. The rolling roller 56 reduces the unwinding resistance of the wire 61 by rolling on the one hand, and plays a guiding role on the other hand, reducing the probability of the wall trough 5 tipping over. On the other hand, the wall trough 5 is made to descend along the steel plate 11 by rolling, reducing the descending friction of the wall trough 5.

[0037] In order to improve the matching performance between the horizontal unwinding assembly 6 and the wall-hanging trough 5 and the anti-slip member 7, the horizontal unwinding assembly 6 provided by the present invention includes a wire box 62, a vertical shaft 63 is provided inside the wire box 62, a wire take-up handle 64 is provided at the shaft end of the vertical shaft 63, a wire 61 is wound on the vertical shaft 63, and a pull head 65 is provided at the end of the wire. The wire box 62 is provided at a wider position at the bottom of the wall-hanging trough 5, one side of the wire box 62 corresponds to the convex surface of the convex plate 52, the wire 61 passes through between the steel plate 11 and the convex surface of the convex plate 52 and is connected to the anti-slip member 7 from bottom to top, and the tension and pressure generated by the lead-out direction of the wire 61 can further improve the anti-overturning performance of the wall-hanging trough 5; the diameter of the pull head 65 is larger than the diameter of the wire 61, and the wire head can be stuck on the anti-slip member 7, providing a stable positioning node for the top of the horizontal unwinding assembly 6. After the temporary construction protection of the cofferdam 1 is completed, the wire 61 can be wound up by rotating the vertical shaft 63 through the wire take-up handle 64, thereby facilitating the removal and storage of the wall hanging trough 5.

[0038] Furthermore, the wire box 62 provided by the present invention has a square structure and counterweights 66 are provided on multiple sides thereof. The counterweights 66 are threadedly connected to the outside of the wire box 62 in the form of weights. By providing the counterweights 66, the center of gravity position of the wall-hanging groove 5 can be fine-tuned so that the wall-hanging groove 5 can be effectively attached to the surface of the cofferdam 1.

[0039] like Figure 6 As shown, the anti-slip member 7 provided by the present invention includes a lifting lug 71, which is provided with two C-shaped portions 72 spaced apart in front and back. The C-shaped openings of the two C-shaped portions 72 are arranged in opposite directions left and right, and the center diameter of the C-shaped portion 72 is smaller than the diameter of the pull head 65. The front and back spacing of the two C-shaped portions 72 can be used for passing the wire. The wire 61 is wedged into the opening of one C-shaped portion 72, tucked between the two C-shaped portions 72, and then led out from the opening of the other C-shaped portion 72. The pull head 65 is then stuck on the outside of the latter C-shaped portion 72. In this way, not only can a stable and reliable tensile node be effectively provided for the end of the wire 61, but it also has good quick connection performance, no bolt connection is required, the structure is simple, and the practicality is strong.

[0040] Considering that water leaking from higher locations on the cofferdam 1 can travel a relatively long distance through the gaps in the steel plate 11, the present invention incorporates an expansion module 8 on the wall-mounted trough 5. This expansion module 8 interlocks with the wall-mounted trough 5 and serves to horizontally expand the cross-section of the diversion channel. This expandable diversion channel effectively reduces the probability of water leaking into the construction area. Furthermore, the expansion module 8 offers high flexibility in positioning, allowing it to be installed and adjusted based on the specific location of the leak on the cofferdam 1 surface.

[0041] Furthermore, the expansion module 8 provided by the present invention includes a lightweight trough plate 81, one side of which is provided with a U-shaped flap 82. The flap 82 engages with the retaining edge 57 provided on the wall-hanging trough 5 at a height less than that of the other side of the lightweight trough plate 81. Both ends of the lightweight trough plate 81 are provided with blocking plates 83. The lightweight trough plate 81, when hung on the wall-hanging trough 5, prevents the wall-hanging trough 5 from tilting at a large angle. The lightweight trough plate 81 is designed with blocking at both ends, allowing it to be flexibly installed on the wall-hanging trough 5 at different locations without diverting water to the construction area. The blocking plates 83 block the lightweight trough plate 81, allowing any leaking water received by the lightweight trough plate 81 to overflow into the wall-hanging trough 5, allowing the water to flow and converge into the sunken water tank 4, thereby facilitating the diversion and drainage operations.

[0042] In order to improve the installation stability of the lightweight trough plate 81, the length of the lightweight trough plate 81 provided by the present invention is greater than the length of the wall-hanging trough 5. Therefore, after the lightweight trough plate 81 is quickly snapped into place with the retaining edge 57 through the flip buckle 82, it actually establishes a connection with at least two wall-hanging troughs 5, and the supporting surfaces of the multiple wall-hanging troughs 5 in the diversion direction are sufficient to support the wall-hanging troughs 5 and the lightweight trough plate 81, so the installation stability of the lightweight trough plate 81 can be guaranteed.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A diversion and drainage device for a water conservancy project, comprising a cofferdam, the cofferdam comprising a plurality of sequentially connected steel plates, a supporting steel beam, a submersible sewage pump, and a drainage pipe disposed on the inner side of the cofferdam, the drainage pipe draining water from bottom to top, characterized in that: The submersible sewage pump is arranged on the inner side of the sunken water tank, and the sunken water tank is arranged at the corner position of the cofferdam. The inner wall of the cofferdam is provided with a plurality of wall-hanging grooves distributed along its circumference. The inner side of the wall-hanging groove is a diversion channel and is used to guide the leaking water to the sunken water tank. The wall-hanging groove near the sunken water tank is provided with a water outlet wall. The bottom of the wall-hanging groove is provided with a horizontal unwinding assembly, and the horizontal unwinding assembly includes a wire for lifting and lowering. One end of the horizontal unwinding assembly extends upward from the fitting surface of the wall-hanging groove and the steel plate, and the top of the steel plate is provided with an anti-slip component that cooperates with the top of the horizontal unwinding assembly.

2. A diversion and drainage device for water conservancy projects according to claim 1, characterized in that: A convex plate that fits the inner sides of a plurality of adjacent steel plates is provided on one side of the wall hanging groove, and an overflow plate with a height smaller than that of the convex plate is provided on the other side of the wall hanging groove.

3. A diversion and drainage device for water conservancy projects according to claim 2, characterized in that: The wall hanging groove is a light plate with a groove-shaped structure and a plurality of internal structure holes are arranged inside the wall hanging groove. The two ends of the internal structure holes pass through the two ends of the wall hanging groove.

4. A diversion and drainage device for water conservancy projects according to claim 1 or 3, characterized in that: A wiring groove is provided on the contact surface between the wall hanging groove and the steel plate. The wiring groove is provided with rolling rollers near the upper and lower ends thereof. The roller surface of the rolling roller cooperates with the plate surface of the steel plate and the wire of the horizontal unwinding assembly in a rolling contact form.

5. The diversion and drainage device for water conservancy projects according to claim 1, characterized in that: The horizontal unwinding assembly includes a wire box, a vertical shaft is provided inside the wire box, a wire take-up handle is provided at the shaft end of the vertical shaft, the wire is wound on the vertical shaft, and a pull head is provided at the end of the wire.

6. A diversion and drainage device for water conservancy projects according to claim 5, characterized in that: The wire box is a square structure and counterweights are arranged on multiple sides thereof.

7. The diversion and drainage device for water conservancy projects according to claim 5, characterized in that: The anti-slip part includes a lifting ear, which is provided with two C-shaped parts spaced apart in front and back. The C-shaped openings of the two C-shaped parts are arranged in left and right opposite directions, and the central diameter of the C-shaped part is smaller than the diameter of the slider.

8. A diversion and drainage device for water conservancy projects according to claim 1 or 2, characterized in that: An expansion module is provided on the wall-hanging groove, and the expansion module is buckled with the wall-hanging groove and is used to horizontally expand the cross section of the guide channel.

9. The diversion and drainage device for water conservancy projects according to claim 8, characterized in that: The expansion module includes a lightweight slot plate, one side of which is provided with a U-shaped buckle, which is buckled with the rib provided on the wall-hanging slot and the buckling height is smaller than the other side of the lightweight slot plate, and both ends of the lightweight slot plate are provided with blocking plates.

10. A diversion and drainage device for water conservancy projects according to claim 9, characterized in that: The length of the lightweight slot plate is greater than that of the wall-hanging slot.

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