Caisson land propulsion backfilling device

Abstract

The utility model discloses a kind of caisson land propulsion backfilling devices, belong to caisson backfilling technical field.The device includes first frame, second frame, platform panel, car stop, feeding port and cover plate.First frame is connected by being arranged along longitudinal direction interval by several main beams;Second frame is connected by being arranged along horizontal direction interval by several secondary beams, and second frame is located at the top of first frame and is connected with first frame;Platform panel is laid on the top of second frame and is connected with second frame, and platform panel, second frame and first frame are sequentially connected to form working platform;Car stop is arranged along the circumference of working platform;Feeding port is correspondingly opened along vertical direction and penetrates platform panel, second frame and first frame;The side of cover plate is hinged with the position of platform panel near the edge of feeding port, to open or close feeding port.The caisson land propulsion backfilling device provided by the utility model can improve efficiency, reduce cost and increase efficiency, improve safety, accurately control backfilling quality, save construction period.

Description

Technical Field

[0001] This utility model belongs to the field of caisson backfilling technology, and in particular relates to a caisson land-based propulsion backfilling device. Background Technology

[0002] In the construction of caissons for large-scale hydraulic engineering projects, caisson backfilling is a crucial step in ensuring structural stability. In some projects with high backfilling quality requirements, the design stipulates that the height difference of the backfilled stone material in each compartment should not exceed 1 meter. Currently, caisson backfilling mostly adopts the traditional net hoisting method, which requires a floating crane to lift the net and put the material into the compartment. The backfilling of a single caisson takes about 8 days, resulting in low construction efficiency.

[0003] This method has significant technical problems: First, it relies on large equipment such as floating cranes and crawler cranes, and requires the cooperation of multiple vessels, resulting in large equipment investment and high costs; second, the net hoisting method is prone to rockfall risks, and personnel hooking operations pose safety hazards; third, it is difficult to accurately control the backfilling height of each compartment, which can easily lead to excessive height differences; fourth, there are many exposed steel bars on the top of the caisson, which requires strict processing precision, and each caisson backfilling requires floating crane lifting, further increasing the construction complexity and schedule pressure, and restricting the project progress and safety. Utility Model Content

[0004] In view of the shortcomings of the related technologies, the purpose of this utility model is to provide a caisson land-based propulsion and backfilling device to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A caisson land-based propulsion backfilling device, comprising

[0007] The first frame is composed of several I-beam main beams arranged longitudinally at intervals and fixedly connected to each other.

[0008] The second frame is composed of several I-beam secondary beams arranged laterally and fixedly connected to each other. The second frame is located on top of the first frame and fixedly connected to the first frame.

[0009] The platform panel is laid on top of the second frame and fixedly connected to the second frame. The platform panel, the second frame and the first frame are fixedly connected in sequence to form a working platform for transport vehicles to operate.

[0010] The vehicle stop is fixedly installed along the perimeter of the work platform;

[0011] The material feeding port is vertically opened through the platform panel, the second frame and the first frame, and the opening position of the material feeding port corresponds to each compartment of the caisson.

[0012] The cover plate is adapted to the feeding port. One side of the cover plate is hinged to the edge of the platform panel near the feeding port to open or close the feeding port.

[0013] In some embodiments, the caisson land-based propulsion and backfilling device further includes several support legs, each support leg being located at the bottom of the working platform, the top of each support leg being fixedly connected to the bottom of the first frame, and the bottom of each support leg supporting the top of the caisson.

[0014] In some embodiments, a cross-arranged diagonal bracing assembly is provided between two adjacent support legs. The diagonal bracing assembly includes a first diagonal brace and a second diagonal brace. The two ends of the first diagonal brace are fixedly connected to the top of one support leg and the bottom of the other support leg, respectively. The two ends of the second diagonal brace are fixedly connected to the top of the other support leg and the bottom of one support leg, respectively.

[0015] In some embodiments, the outer surfaces of the work platform, stop, cover plate and support legs are provided with a rust-proof layer, which includes an epoxy zinc-rich primer and a chlorinated rubber topcoat.

[0016] In some embodiments, the vehicle stop includes a plurality of U-shaped steel pipes arranged at intervals along the periphery of the working platform, with the lower ends of the two vertical sides of each U-shaped steel pipe welded and fixed to the working platform so that the vehicle stop is higher than the surface of the working platform.

[0017] In some embodiments, the U-shaped steel pipe fitting is made of bent ø457 steel pipe.

[0018] In some embodiments, the cover plate is made of steel plate, and the upper surface of the cover plate has anti-slip texture.

[0019] In some embodiments, the cover plate is provided with a handle made of round steel, which is welded to the cover plate.

[0020] In some embodiments, the main beam of the first frame is made of double-span 45a I-beams.

[0021] In some embodiments, the secondary beams of the second frame are made of 28a I-beams.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The caisson land propulsion backfilling device provided by this utility model can improve construction efficiency and save costs. Through the working platform composed of the first frame, the second frame and the platform panel, it can be directly used for transport vehicles to operate. With the orderly opening and closing of the feeding port and the cover plate, secondary handling is avoided, equipment investment is reduced, construction process is simplified and resource waste is reduced.

[0024] 2. The caisson land-based propulsion and backfilling device provided by this utility model enhances construction safety and quality control. The vehicle stop prevents the vehicle from slipping, the anti-slip design of the cover plate ensures operational safety, and the support legs and diagonal braces strengthen structural stability. It can accurately control the backfilling status of each compartment, meet the specifications, and reduce construction risks. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0026] Figure 1 This is a top view of the structural layout of one embodiment of the caisson land propulsion and backfilling device of this utility model;

[0027] Figure 2 This is a structural cross-sectional schematic diagram of one embodiment of the caisson land propulsion and backfilling device of this utility model;

[0028] Figure 3 This is a second frame plan view of one embodiment of the caisson land propulsion and backfilling device of this utility model;

[0029] Figure 4 This is a schematic diagram of a vehicle stop for one embodiment of the caisson land propulsion and backfilling device of this utility model.

[0030] In the picture:

[0031] 1. Working platform; 11. First frame; 12. Second frame; 13. Platform panel; 2. Vehicle stop; 3. Feed port; 4. Cover plate; 5. Support leg; 6. Diagonal brace assembly; 61. First diagonal brace; 62. Second diagonal brace; 7. Caisson; 71. Compartment. Detailed Implementation

[0032] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] See appendix Figures 1 to 4 This paper presents an illustrative embodiment of the caisson land-based propulsion and backfilling device proposed in this utility model. The caisson land-based propulsion and backfilling device includes a first frame 11, a second frame 12, a platform panel 13, a vehicle stop 2, a feeding port 3, and a cover plate 4.

[0036] The first frame 11 is composed of several I-beams arranged longitudinally at intervals and fixedly connected to each other, forming the bottom load-bearing structure of the device and providing longitudinal support stiffness for the whole. The second frame 12 is composed of several I-beams arranged transversely at intervals and fixedly connected to each other. The second frame 12 is located on top of the first frame 11 and fixedly connected to the first frame 11, forming a crisscrossing grid-like load-bearing system with the first frame 11, enhancing the overall structural stability.

[0037] Platform panel 13 is laid on top of second frame 12 and fixedly connected to second frame 12. Platform panel 13, second frame 12 and first frame 11 are fixedly connected in sequence to form working platform 1 for transport vehicles. Platform panel 13 is made of 16mm thick steel plate. The platform surface of working platform 1 is flat and has a strong load-bearing capacity, which can directly meet the needs of transport vehicles for driving, unloading and other operations, without the need to build a temporary working surface.

[0038] The vehicle stop 2 is fixedly installed along the perimeter of the work platform 1. The vehicle stop 2 includes several U-shaped steel pipes spaced apart along the perimeter of the work platform 1. The lower ends of the two vertical sides of each U-shaped steel pipe are welded and fixed to the work platform 1. The top ends of the two vertical sides of each U-shaped steel pipe are connected by an arc-shaped transition section with a radius of R150, so that the vehicle stop 2 is higher than the surface of the work platform 1, which can effectively prevent transport vehicles from accidentally sliding off the platform and improve operational safety. In this embodiment, the U-shaped steel pipes are made of bent ø457 steel pipes.

[0039] The feeding port 3 is vertically oriented, penetrating the platform panel 13, the second frame 12, and the first frame 11. The positions of the feeding ports 3 correspond one-to-one with the compartments 71 of the caisson 7, ensuring that the stones can fall directly into the target compartment 71 during unloading, avoiding deviation. The cover plate 4 is adapted to the feeding port 3. One side of the cover plate 4 is hinged to the edge of the platform panel 13 near the feeding port 3. The cover plate 4 is made of steel plate, with anti-slip textures on its upper surface and a handle. The handle is made of round steel and welded to the cover plate 4, facilitating the opening and closing of the feeding port 3 and preventing slippage during operation, thus improving operational safety.

[0040] The caisson land-based propulsion and backfilling device also includes several support legs 5. Each support leg 5 is located at the bottom of the working platform 1, and the top of each support leg 5 is fixedly connected to the bottom of the first frame 11. The bottom of each support leg 5 supports the top of the caisson 7, providing stable support for the working platform 1 and ensuring the overall stability of the platform when carrying transport vehicles. The arrangement of the support legs 5 ensures that the working platform 1 has a set elevation after installation. This elevation design ensures that the device will not be submerged during high tide and can operate 24 hours a day.

[0041] A cross-bracing assembly 6 is provided between two adjacent support legs 5. The cross-bracing assembly 6 includes a first cross-bracing 61 and a second cross-bracing 62. The two ends of the first cross-bracing 61 are fixedly connected to the top of one support leg 5 and the bottom of the other support leg 5, respectively. The two ends of the second cross-bracing 62 are fixedly connected to the top of the other support leg 5 and the bottom of one support leg 5, respectively. In this embodiment, the cross-bracing rod is ø152×5. The cross-bracing structure further enhances the lateral displacement resistance of the support legs 5 and improves the structural reliability of the device under heavy load conditions.

[0042] In addition, the outer surfaces of the work platform 1, the stop 2, the cover plate 4, and the support leg 5 are all provided with an anti-rust layer, which includes epoxy zinc-rich primer and chlorinated rubber topcoat, which can effectively resist corrosive factors such as water vapor and salt in the working environment and extend the service life of the device.

[0043] The main beams of the first frame 11 are made of double-span 45a I-beams, and the secondary beams of the second frame 12 are made of 28a I-beams. Through reasonable selection, the frame structure is ensured to have sufficient strength and rigidity to meet the load requirements of transport vehicles and backfill materials.

[0044] Traditional caisson backfilling uses a netting method, requiring floating cranes for lifting. This method also results in numerous exposed steel bars at the top of the caisson, high precision requirements, low backfilling rates, difficulty in controlling the height difference between compartment stones, and inadequate protection of the partition walls. In the illustrative embodiment described above, the caisson land-based propulsion backfilling device significantly improves efficiency, doubling the efficiency of traditional methods. It reduces the need for ships and crawler cranes, avoids secondary handling, and saves on lifting and personnel costs. Simultaneously, it reduces equipment and personnel input, avoids risks such as falling rocks and personnel hooking, improves inherent safety, and allows for precise control of the backfilling height of each compartment, meeting design and specification requirements.

[0045] The following is in conjunction with the appendix Figures 1 to 3 The working process of one embodiment of the caisson land-based propulsion and backfilling device of this utility model will be described:

[0046] During installation, the bottom of the support leg 5 is placed at the top of the caisson 7 at a preset position, so that the working platform 1 formed by the first frame 11, the second frame 12 and the platform panel 13 are stacked in sequence is in a horizontal and stable state. The diagonal brace assembly 6 further strengthens the overall structure of the support leg 5 through the cross connection of the first diagonal brace 61 and the second diagonal brace 62.

[0047] During backfilling operations, transport vehicles can drive directly onto the work platform 1. The vehicle stop 2 forms a barrier along the perimeter of the platform to prevent vehicles from accidentally driving off the platform. The operator opens the feeding port 3 of the corresponding compartment 71 through the handle on the cover plate 4 (the other feeding ports 3 remain closed), and the transport vehicle unloads the stone directly into the target compartment 71 of the caisson 7 through the opened feeding port 3.

[0048] After completing the phased backfilling of one compartment 71, the operator closes the cover plate 4 and then opens the cover plate 4 of the next corresponding compartment 71 to unload the material. By opening and closing the cover plates 4 of different feeding ports 3 in sequence, uniform backfilling of each compartment 71 is achieved, and the height difference of the stone in each compartment 71 is effectively controlled.

[0049] During operation, the anti-slip texture on the cover plate 4 prevents operators from slipping during opening or closing, the platform panel 13 provides a flat working surface to ensure smooth vehicle operation, the anti-rust layer protects all components from corrosion, and the frame structure composed of double-beam I-beam main beams and I-beam secondary beams stably bears the overall load.

[0050] Through the above process, this device does not need to rely on large lifting equipment such as floating cranes for transfer. It can directly use the working platform 1 to enable transport vehicles to reach the work surface, reducing equipment investment and secondary handling. By orderly controlling the opening and closing of the feeding port 3, the backfilling status of the compartment 71 can be precisely controlled, reducing the risk of falling rocks and personnel safety, and ensuring that the operation meets the design and specification requirements.

[0051] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A caisson land-based propulsion and backfilling device, characterized in that, include The first frame is composed of several I-beam main beams arranged longitudinally at intervals and fixedly connected to each other. The second frame is composed of several I-beam secondary beams arranged laterally and fixedly connected to each other. The second frame is located on top of the first frame and fixedly connected to the first frame. A platform panel is laid on top of the second frame and fixedly connected to the second frame. The platform panel, the second frame and the first frame are fixedly connected in sequence to form a working platform for transport vehicles to operate. A vehicle stop is fixedly installed along the periphery of the working platform; The material feeding port is vertically opened through the platform panel, the second frame and the first frame, and the opening position of the material feeding port corresponds one-to-one with each compartment of the caisson. A cover plate is adapted to the feeding port, and one side of the cover plate is hinged to the platform panel near the edge of the feeding port to open or close the feeding port.

2. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, It also includes several support legs, each of which is located at the bottom of the working platform, the top of each of which is fixedly connected to the bottom of the first frame, and the bottom of each of which is supported on the top of the caisson.

3. The caisson land-based propulsion and backfilling device according to claim 2, characterized in that, A cross-arranged diagonal bracing assembly is provided between two adjacent support legs. The diagonal bracing assembly includes a first diagonal brace and a second diagonal brace. The two ends of the first diagonal brace are fixedly connected to the top of one support leg and the bottom of the other support leg, respectively. The two ends of the second diagonal brace are fixedly connected to the top of the other support leg and the bottom of one support leg, respectively.

4. The caisson land-based propulsion and backfilling device according to claim 2, characterized in that, The outer surfaces of the work platform, wheel stop, cover plate and support legs are all provided with an anti-rust layer, which includes an epoxy zinc-rich primer and a chlorinated rubber topcoat.

5. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, The vehicle stop includes several U-shaped steel pipes arranged at intervals along the periphery of the working platform. The lower ends of the two vertical sides of each U-shaped steel pipe are welded and fixed to the working platform so that the vehicle stop is higher than the surface of the working platform.

6. The caisson land-based propulsion and backfilling device according to claim 5, characterized in that, The U-shaped steel pipe fitting is made of ø457 steel pipe bent into shape.

7. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, The cover plate is made of steel plate, and the upper surface of the cover plate is provided with anti-slip texture.

8. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, The cover plate is provided with a handle, which is made of round steel and is welded to the cover plate.

9. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, The main beams of the first frame are made of double-span 45a I-beams.

10. The caisson land-based propulsion and backfilling device according to claim 1, characterized in that, The secondary beams of the second frame are made of 28a I-beams.

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