An on-water construction device for precast pile caps

Abstract

The utility model relates to a kind of water construction device of precast pile cap, belong to pipe pile cap construction technical field.The water construction device of precast pile cap includes pile cap, reinforcement cage and guardrail;Wherein, pile cap center is provided with the core hole of vertical through;The top of reinforcement cage is fixedly connected with the bottom of core hole, and reinforcement cage is used to insert into hollow pile body, to pour concrete into pile body by core hole;Guardrail is set around the top surface edge of pile cap;When construction, the top surface of pile cap is formed into the construction platform of pouring concrete, and guardrail is used for the safety protection of construction personnel.The water construction device of precast pile cap directly uses the top surface of pile cap as construction platform, eliminates the step of additional lifting construction platform in traditional method, avoids long time occupation of hoisting equipment, improves construction efficiency;Guardrail is set on the top surface of pile cap, can effectively prevent construction personnel from falling from the top surface of pile cap, especially suitable for water operation under wind wave environment, reduce security risk.

Description

Technical Field

[0001] This utility model belongs to the field of pile cap construction technology, specifically relating to a prefabricated pile cap underwater construction device. Background Technology

[0002] High-pile wharves are primarily suitable for soft soil foundations, such as in coastal areas, estuaries, and downstream regions where soft soil foundations are widely distributed. As an important type of wharf structure, high-pile wharves offer numerous advantages and have a wide range of applications. They mainly consist of a superstructure (pile abutment or pile cap), pile foundations, shoal connection structures, shoal locks, and wharf equipment. The superstructure forms the wharf deck and is integrated with the pile foundations, directly bearing the vertical and horizontal loads acting on the wharf deck and transferring them to the pile foundations. The pile foundations support the superstructure and transfer the loads from the superstructure and wharf deck to deeper layers of the foundation, while also contributing to the stabilization of the shoal slope.

[0003] In the prior art, a Chinese utility model patent provides a pipe pile structure that facilitates construction, including a pile cap body and a cylindrical pipe pile body. The pile cap body is a square structure made of precast concrete, and a T-shaped annular pre-reserved groove is provided at the center of the pile cap body. The annular pre-reserved groove and the internal channel of the pipe pile body are used for pouring concrete for core filling. Although this patent can improve construction efficiency by using precast pile caps, in actual construction, it is still necessary to use lifting equipment to lift the construction platform, and workers carry out concrete core filling and other construction work on the construction platform. There are significant safety hazards during the construction process, especially for construction on water, where prolonged occupation of lifting equipment will seriously affect construction efficiency and waste resources.

[0004] Therefore, how to provide a precast pile cap underwater construction device that does not require a long-term hoisting construction platform is a technical problem that urgently needs to be solved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a waterborne construction device for prefabricated pile caps. By directly using the top surface of the pile cap as a construction platform, it eliminates the need for additional lifting of the construction platform in traditional methods, avoids prolonged occupation of lifting equipment, and improves construction efficiency.

[0006] This utility model provides a precast pile cap underwater construction device, comprising:

[0007] The pile cap has a vertical through-hole in its center;

[0008] The top of the reinforcing cage is fixedly connected to the bottom of the core hole. The reinforcing cage is used to insert into the hollow pile body so that concrete can be poured into the pile body through the core hole.

[0009] The guardrail is installed around the top edge of the pile cap; during construction, the top surface of the pile cap forms a construction platform for pouring concrete, and the guardrail is used for the safety protection of construction personnel.

[0010] This technical solution uses the top surface of the pile cap directly as a construction platform, eliminating the need for additional lifting of the construction platform in traditional methods, avoiding prolonged occupation of lifting equipment, and improving construction efficiency. The installation of guardrails on the top surface of the pile cap can effectively prevent construction personnel from falling from the top surface of the pile cap, which is especially suitable for water operations in windy and wavey environments, reducing safety hazards.

[0011] In some embodiments, the pile cap is provided with a lifting ring at the top for lifting the pile cap; before construction, the pile cap is fixedly connected to the reinforcing cage, lifted by the lifting ring, and the reinforcing cage is inserted into the pile body, and the pile cap is placed on top of the pile body.

[0012] This technical solution uses lifting rings to facilitate the overall hoisting and accurate positioning of the pile cap and reinforcing cage to the top of the pile before construction.

[0013] In some embodiments, at least two lifting rings are provided, and the lifting rings are symmetrically distributed around the core hole.

[0014] This technical solution can ensure that the pile cap is subjected to balanced force during lifting, prevent tilting or displacement, and improve lifting stability.

[0015] In some embodiments, the guardrail includes uprights and handrails, with the uprights spaced apart along the top edge of the post cap, and the handrails horizontally positioned and fixedly connected to the top of each upright, forming a continuous enclosure structure.

[0016] This technical solution can provide all-round protection for construction workers, preventing them from falling from the top of the pile cap during operation.

[0017] In some embodiments, the pole is detachably connected to the top surface of the pile cap.

[0018] This technical solution is easy to transport and store, and can be flexibly installed or dismantled according to construction needs, adapting to different working conditions.

[0019] In some embodiments, the top surface of the handrail is provided with lifting lugs for raising the guardrail.

[0020] This technical solution, by setting up lifting lugs, facilitates the individual hoisting or overall transfer of the guardrail, avoiding manual handling and reducing labor intensity.

[0021] In some embodiments, at least two lugs are provided, and the lugs are symmetrically distributed around the center of the handrail.

[0022] This technical solution ensures that the guardrail is subjected to uniform force during hoisting, preventing deformation or tilting.

[0023] In some embodiments, the underwater construction device for precast pile caps also includes a ladder that extends from the shore to the top of the pile cap, forming a passageway for personnel.

[0024] This technical solution provides a safe and stable access route for construction workers by installing ladders.

[0025] In some embodiments, one end of the ladder is fixedly connected to the shore, and the other end is provided with a hook, through which the ladder is detachably connected to the guardrail.

[0026] This technical solution allows for flexible deployment according to the construction schedule, while reducing permanent modifications to the pile cap structure.

[0027] In some embodiments, the ladder surface is provided with anti-slip texture.

[0028] This technical solution enhances the surface friction of the ladder with anti-slip texture, preventing construction workers from slipping and falling in wet environments.

[0029] Based on the above solution, the precast pile cap construction device in this embodiment of the invention directly uses the top surface of the pile cap as a construction platform, eliminating the need for additional lifting of the construction platform in traditional methods, avoiding prolonged occupation of lifting equipment, and improving construction efficiency. The protective railing on the top surface of the pile cap effectively prevents construction personnel from falling, making it particularly suitable for water operations in windy and wavery environments, reducing safety hazards. The steel cage is fixedly connected to the core hole of the pile cap, achieving structural synergy between the precast pile cap and the cast-in-place concrete pile body, ensuring reliable load transfer, and simplifying the pouring process. In summary, the precast pile cap construction device in this embodiment achieves a balance between structural reliability and economy while addressing the low construction efficiency and significant safety hazards of existing technologies. Attached Figure Description

[0030] 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:

[0031] Figure 1 This is a three-dimensional drawing of the precast pile cap construction device for waterborne applications according to this utility model;

[0032] Figure 2 This is a side view of the precast pile cap construction device for waterborne applications according to this utility model;

[0033] Figure 3 This is a top view of the precast pile cap construction device of this utility model on water.

[0034] Figure 4This is a construction diagram of the precast pile cap underwater construction device of this utility model.

[0035] In the picture:

[0036] 1. Pile cap; 2. Reinforcing cage; 3. Pile body; 4. Guardrail;

[0037] 101. Core hole; 102. Lifting eyelet;

[0038] 401. Upright pole; 402. Handrail; 403. Lifting lug. Detailed Implementation

[0039] 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.

[0040] 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.

[0041] 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.

[0042] like Figures 1-4 As shown, in one embodiment of the precast pile cap construction device of this utility model, the precast pile cap construction device includes a pile cap 1, a reinforcing cage 2, and a guardrail 4; wherein, a vertically penetrating core hole 101 is provided at the center of the pile cap 1; as shown Figure 4As shown, the top of the reinforcing cage 2 is fixedly connected to the bottom of the core hole 101. The reinforcing cage 2 is used to insert into the hollow pile body 3 so that concrete can be poured into the pile body 3 through the core hole 101. The guardrail 4 is set around the top edge of the pile cap 1. During construction, the top surface of the pile cap 1 forms a construction platform for pouring concrete, and the guardrail 4 is used for the safety protection of construction personnel.

[0043] In the above illustrative embodiments, the precast pile cap construction device provided by this utility model directly uses the top surface of the pile cap 1 as a construction platform, eliminating the need for additional lifting of the construction platform in traditional methods, avoiding prolonged occupation of lifting equipment, and improving construction efficiency. The protective railing 4 installed on the top surface of the pile cap 1 effectively prevents construction personnel from falling from the top surface, making it particularly suitable for water operations in windy and wave conditions, reducing safety hazards. The reinforcing cage 2 is fixedly connected to the core hole 101 of the pile cap 1, achieving structural synergy between the precast pile cap 1 and the cast-in-place concrete pile body 3, ensuring reliable load transfer, and simplifying the pouring process. In summary, the precast pile cap construction device in this embodiment achieves a balance between structural reliability and economy while addressing the low construction efficiency and significant safety hazards of existing technologies.

[0044] In some embodiments, such as Figure 2 As shown, the pile cap 1 is equipped with a lifting ring 102 at its top, which is used to lift the pile cap 1. Before construction, the pile cap 1 is fixedly connected to the reinforcing cage 2, lifted by the lifting ring 102, and the reinforcing cage 2 is inserted into the pile body 3, with the pile cap 1 positioned on top of the pile body 3. By setting up the lifting ring 102, it is convenient to hoist the pile cap 1 and the reinforcing cage 2 as a whole and accurately position them on top of the pile body 3 before construction, simplifying the installation process and improving construction efficiency.

[0045] In some embodiments, at least two lifting rings 102 are provided, and the lifting rings 102 are symmetrically distributed around the core hole 101. As an illustrative embodiment, such as... Figure 3 As shown, the top surface of the square pile cap 1 is provided with four lifting rings 102. The lifting rings 102 are symmetrically arranged with the core hole 101 as the center to ensure that the pile cap 1 is subjected to balanced force during lifting, prevent tilting or displacement, improve the stability of lifting, ensure the alignment accuracy of the pile cap 1 and the pile body 3, and reduce adjustment time.

[0046] In some embodiments, such as Figure 1 As shown, the guardrail 4 includes uprights 401 and handrails 402. The uprights 401 are spaced apart along the top edge of the pile cap 1, and the handrails 402 are horizontally positioned and fixedly connected to the top of each upright 401, forming a continuous enclosure structure. The uprights 401 and handrails 402 form a continuous enclosure structure, providing all-round protection for construction personnel and preventing them from falling from the top surface of the pile cap 1 during operations. This is especially suitable for offshore wind and wave environments, significantly improving construction safety.

[0047] In some embodiments, the upright 401 is detachably connected to the top surface of the pile cap 1. This detachable connection facilitates transportation and storage, and allows for flexible installation or removal according to construction needs, adapting to different working conditions and improving the reusability of the device.

[0048] It should be noted that there are several ways to detachably connect the column to the top surface of the pile cap 1, including but not limited to the following three connection methods.

[0049] The first connection method: The bottom of the upright 401 is welded with a flange, and the top surface of the pile cap 1 is pre-embedded with a connecting steel plate with threaded holes. The upright and the top surface of the pile cap 1 are fixed by high-strength bolts passing through the flange and the connecting steel plate. This connection method provides anti-overturning moment through flange connection, which can adapt to the wind and wave load on water. The pre-embedded steel plate avoids damage to the structure of the pile cap 1 by drilling on site.

[0050] The second connection method: The top surface of the pile cap 1 is equipped with a base with positioning holes, and the lower end of the upright 401 is equipped with a plug sleeve. The side wall of the plug sleeve has a through hole. After being inserted into the base, it is horizontally locked by a quick-release pin. The quick-release pin is equipped with an anti-derailment chain. This connection method can achieve quick assembly and disassembly by a single person and is suitable for temporary construction scenarios. The anti-derailment chain can prevent the quick-release pin from being lost during water operations.

[0051] The third connection method: The top surface of the pile cap 1 is cast with an annular groove, and a rubber pad is embedded in the annular groove. The bottom of the upright 401 is equipped with an expansion locking head. By rotating the upright 401, the locking head and the groove form an interference fit. This connection method has no exposed fasteners, which can avoid corrosion of the device and improve the service life of the device. The rubber pad provides shock absorption and can adapt to the working conditions of water construction.

[0052] In some embodiments, such as Figure 2 As shown, the top surface of the handrail 402 is provided with lifting lugs 403 for lifting the guardrail 4. By setting the lifting lugs 403, it is convenient to lift the guardrail 4 individually or move it as a whole, avoid manual handling, reduce labor intensity, and is especially suitable for the dismantling and assembly of large guardrails 4.

[0053] In some embodiments, at least two lugs 403 are provided, and the lugs 403 are symmetrically distributed around the center of the handrail 402. As an illustrative embodiment, such as... Figure 3 As shown, the top surface of the handrail 402 is provided with four lifting lugs 403. The lifting lugs 403 are symmetrically distributed around the center of the handrail 402 to ensure that the guardrail 4 is subjected to uniform force during hoisting, prevent deformation or tilting, and ensure the safety and efficiency of hoisting.

[0054] In some embodiments, the underwater construction device for precast pile caps also includes a ladder (not shown in the figure), which is erected from the shore to the top surface of the pile cap 1 to form a passage for personnel. By setting up the ladder, a safe and stable access route is provided for construction personnel, avoiding reliance on ships or wading, reducing safety hazards, and improving the convenience of operation.

[0055] In some embodiments, one end of the ladder is fixedly connected to the bank, and the other end is equipped with a hook. The ladder is detachably connected to the guardrail 4 via the hook. The ladder can be quickly connected or disconnected from the guardrail 4 via the hook, which facilitates flexible deployment according to the construction progress, while reducing permanent modifications to the structure of the pile cap 1 and maintaining the integrity of the device.

[0056] In some embodiments, the ladder surface is provided with anti-slip textures. These textures enhance the surface friction of the ladder, preventing workers from slipping and falling in wet environments, and further ensuring safety during high-altitude and water-based operations.

[0057] Next, the method of using the precast pile cap construction device of this utility model on water will be briefly explained:

[0058] S1, complete the prefabrication of pile cap 1 and steel cage 2 at the prefabrication site, and install steel cage 2 at the bottom of core hole 101;

[0059] S2, using lifting equipment, the combination of pile cap 1 and steel cage 2 is hoisted to the construction site, and the steel cage 2 is inserted into the pile body 3;

[0060] S3, hoist the guardrail 4 to the top of the pile cap 1 and fix it in place;

[0061] S4, a ladder is erected from the shore to the top of pile cap 1. Workers can climb the ladder to reach the top of pile cap 1 and use the top of pile cap 1 as a construction platform.

[0062] S5, the workers poured concrete into the pile body 3 through the core hole 101 until it was level with the top surface of the pile cap 1.

[0063] Through the description of several embodiments of the precast pile cap water construction device of the present invention, it can be seen that the embodiments of the precast pile cap water construction device of the present invention have at least one or more of the following advantages.

[0064] 1. The precast pile cap water construction device provided by this utility model directly uses the top surface of the pile cap 1 as a construction platform, eliminating the need for additional lifting of the construction platform in the traditional method, avoiding long-term occupation of lifting equipment, and improving construction efficiency.

[0065] 2. The precast pile cap water construction device provided by this utility model has a protective railing 4 set on the top surface of the pile cap 1, which can effectively prevent construction personnel from falling from the top surface of the pile cap 1. It is especially suitable for water operations in windy and wave environments, reducing safety hazards.

[0066] 3. The precast pile cap construction device provided by this utility model has a steel cage 2 fixedly connected to the core hole 101 of the pile cap 1, realizing the structural coordination between the precast pile cap 1 and the cast-in-place concrete pile body 3, ensuring the reliability of load transfer, and simplifying the pouring process.

[0067] 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.

[0068] 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 precast pile cap underwater construction device, characterized in that, include: The pile cap has a vertical through-hole in its center; A reinforcing cage, the top of which is fixedly connected to the bottom of the core hole, is used to insert into the hollow pile body so that concrete can be poured into the pile body through the core hole; A protective railing is installed around the top edge of the pile cap; during construction, the top surface of the pile cap forms a construction platform for pouring concrete, and the protective railing is used for the safety protection of construction personnel.

2. The underwater construction device for precast pile caps according to claim 1, characterized in that, The pile cap is equipped with a lifting ring at the top, which is used to lift the pile cap. Before construction, the pile cap is fixedly connected to the reinforcing cage, lifted by the lifting ring, and the reinforcing cage is inserted into the pile body, and the pile cap is placed on top of the pile body.

3. The underwater construction device for precast pile caps according to claim 2, characterized in that, The lifting ring is provided in at least two parts, and the lifting rings are symmetrically distributed with the core hole as the center.

4. The underwater construction device for precast pile caps according to claim 1, characterized in that, The guardrail includes uprights and handrails. The uprights are spaced apart along the top edge of the pile cap, and the handrails are horizontally arranged and fixedly connected to the top of each upright, forming a continuous enclosure structure.

5. The underwater construction device for precast pile caps according to claim 4, characterized in that, The upright is detachably connected to the top surface of the pile cap.

6. The underwater construction device for precast pile caps according to claim 4 or 5, characterized in that, The top surface of the handrail is provided with lifting lugs for suspending the guardrail.

7. The underwater construction device for precast pile caps according to claim 6, characterized in that, The armrest has at least two lugs, which are symmetrically distributed around the center of the armrest.

8. The underwater construction device for precast pile caps according to claim 1, characterized in that, The underwater construction device for the precast pile cap also includes a ladder, which is erected from the shore to the top of the pile cap to form a passage for personnel.

9. The underwater construction device for precast pile caps according to claim 8, characterized in that, One end of the ladder is fixedly connected to the shore, and the other end is equipped with a hook. The ladder is detachably connected to the guardrail via the hook.

10. The underwater construction device for precast pile caps according to claim 8 or 9, characterized in that, The ladder surface is provided with anti-slip texture.

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