Quick pile splicing, positioning and guiding device for PHC tubular pile

Abstract

The utility model provides a positioning and guiding device for fast pile splicing of a PHC (prestressed high-strength concrete) pipe pile, which is integrally composed of an upper short cylinder and a lower cone which are coaxial, and the upper short cylinder can be assembled in a hole on one side of an upper PHC pipe pile for pile splicing in a threaded manner through an external thread on the outer peripheral wall of the upper short cylinder; the lower cone can be adaptively and completely embedded into a hole in one side, used for pile extension, of the lower PHC pipe pile; in the device, a first solid body is arranged in the range of the radius R by taking the central axis as the center, other parts are equally divided into six parts in the circumferential direction around the central axis except the first solid body, three parts are second solid bodies, the other three parts are hollow bodies, and the second solid bodies and the hollow bodies are distributed in a staggered mode; the device comprises an inner core and an outer shell, the inner core is made of polyethylene materials and filled in all solid bodies, and the outer shell is made of white steel sheets. According to the utility model, the technical obstacles that the pile splicing centering of the PHC pipe pile is difficult and the operation is complicated are overcome, the requirement on manpower is reduced, and the construction is simple, convenient and efficient.

Description

Technical Field

[0001] The utility model relates to a PHC pipe pile quick connection pile positioning guide device. Background Art

[0002] PHC pipe piles are mainly used for analysis pile foundations of various large-scale construction projects, such as high-rise buildings, large bridges, subway tunnels, water conservancy projects, etc. In areas with poor geological conditions, PHC pipe piles can also be used to reinforce the foundation and improve the bearing capacity and stability of the foundation.

[0003] When the engineering piles are connected, the upper and lower pile sections should be on the same axis, and the centering deviation should be less than 10mm; and in the process of lifting the pile into the pile cap by the pile driver hoisting mechanism, the prefabricated pile is first hoisted into the pile cap with a single cable buckle wire rope. At this time, the pile hammer and the pile cap are on the same axis, but there is an angle with the pile body; the pile section that has been driven and the pile section to be connected also have an angle in the vertical direction; the pile head end plate is made of iron, and the pile body will slip, increasing safety hazards and reducing the speed of pile connection. Therefore, it is difficult to ensure that the upper and lower pile sections are concentric with the pile cap and the pile hammer, and it is necessary to operate carefully and adjust repeatedly.

[0004] At present, all adjustments are done manually. When connecting piles, workers manually adjust the upper and lower pile sections to keep them straight, so that the center line deviation is no more than 2mm. After the upper pile section is aligned, 4-6 points are symmetrically spot welded to fix it, and then welding is carried out. This method is difficult to center, complicated to operate, requires fine operation, repeated adjustments, and has safety hazards. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a PHC pipe pile quick connection positioning and guiding device, which uses a simple structure to quickly and conveniently solve the technical obstacles of difficult centering of PHC pipe pile connections and complicated operations, reduce the requirements for labor, and make construction simple and efficient.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A PHC pipe pile quick connection positioning and guiding device, the structural features of which are:

[0008] The positioning and guiding device as a whole is composed of a coaxial upper short cylinder and a lower cone. The outer diameters of the upper short cylinder and the lower cone plane are set according to the inner diameter of the PHC pile. The outer peripheral wall of the upper short cylinder is provided with an external thread, and extends outward from one of the axial ends along the axial direction to form the lower cone. In the device, the first solid body is centered within the radius R with the central axis as the center. Except for the first solid body, the rest of the parts are equally divided into six parts around the central axis along the circumferential direction, of which three parts are second solid bodies, and the other three parts are hollow bodies, and the second solid bodies and the hollow bodies are staggered. The device includes an inner core and an outer shell. The inner core is made of polyethylene and is fully filled in each solid body. The outer shell is made of stainless steel sheet.

[0009] In the two sections of PHC pipe piles to be connected, the inner hole wall of the upper section of the PHC pipe pile for the pile connection side has an internal thread, which can be matched with the external thread of the upper short column through the internal thread, and the positioning guide device can be adaptively threadedly assembled in the hole of the upper section of the PHC pipe pile for the pile connection side through the upper short column, and the lower cone can be adaptively and completely embedded in the hole of the lower section of the PHC pipe pile for the pile connection side.

[0010] The structural features of the utility model also lie in:

[0011] The shell thickness is 0.1mm.

[0012] The upper short cylinder has a diameter of 580mm and a height of 100mm, the lower cone has a height of 500mm and a plane diameter of 580mm.

[0013] The radius R is 100 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are embodied in:

[0015] 1. The utility model can simplify the centering operation and reduce the difficulty of centering on the basis of effectively ensuring that the center line deviation of the upper and lower PHC pipe piles is within the design requirements, without excessively fine operations, and reduce the requirements for manual operation level, so that the pile connection construction is convenient and efficient, and the pile connection is realized quickly and accurately, and the welding operation is convenient, so that the upper and lower PHC pipe piles can be welded firmly and meet the acceptance quality requirements;

[0016] 2. The utility model has low cost, and the inner polyethylene and outer steel surrounding structure strengthens the stability of the mold. The structure is stable and not easy to deform. It is assembled with the upper PHC pipe pile through threads, which is not easy to be misplaced. When connecting the piles, the upper PHC pipe pile is suspended above the lower PHC pipe pile, which can avoid the installation being too high or too low to affect the construction operation. This construction method using overall installation has open space, convenient construction operation, and improved construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the upper short column;

[0019] Figure 3 It is a schematic diagram of an application example of the utility model.

[0020] In the figure, 1 is an upper short column; 2 is a lower cone; 3 is a first solid body; 4 is a second solid body; 5 is a hollow body; 6 is an upper section of a PHC pipe pile; and 7 is a lower section of a PHC pipe pile. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Please refer to Figures 1 to 3 The PHC pile quick connection positioning and guiding device of this embodiment has the following structural features:

[0023] The positioning and guiding device as a whole is composed of a coaxial upper short cylinder 1 and a lower cone 2. The outer diameters of the planes of the upper short cylinder 1 and the lower cone 2 are set corresponding to the inner diameter of the PHC pile. The outer peripheral wall of the upper short cylinder 1 is provided with an external thread, and extends outward from one of the axial ends along the axial direction to form the lower cone 2. In the device, the first solid body 3 is centered within the radius R around the central axis. Except for the first solid body 3, the rest of the parts are equally divided into six parts along the circumferential direction around the central axis, of which three parts are second solid bodies 4, and the other three parts are hollow bodies 5. The second solid bodies 4 and the hollow bodies 5 are staggered. The device includes an inner core and an outer shell. The inner core is made of polyethylene and is fully filled in each solid body. The outer shell is made of stainless steel sheet.

[0024] In the two sections of PHC pipe piles to be connected, the inner hole wall of the upper section PHC pipe pile 6 on the side for connecting the piles has an internal thread, which can be matched with the external thread of the upper short column 1 through the internal thread, and the positioning guide device can be adaptively threadedly assembled in the hole of the upper section PHC pipe pile 6 on the side for connecting the piles through the upper short column 1, and the lower cone 2 can be adaptively and completely embedded in the hole of the lower section PHC pipe pile 7 on the side for connecting the piles.

[0025] The structural features of the utility model also lie in:

[0026] The shell thickness is 0.1mm.

[0027] The upper short cylinder 1 has a diameter of 580 mm and a height of 100 mm, and the lower cone 2 has a height of 500 mm and a plane diameter of 580 mm.

[0028] The radius R is 100 mm.

[0029] The top of the device corresponds to the opening of each hollow body, and handles can be set on the side walls of each hollow body and solid body in the device, so that workers can install it quickly and easily during construction without other auxiliary tools.

[0030] The device is set to a structural form that combines hollow bodies with solid bodies, and its effects are: reducing the deadweight while ensuring the stability of its own structure, and also reducing the device cost; when sinking piles, the pipe piles are hollow, and soil will surge up as the piles are sunk. The design of the hollow body will not hinder the surge, thereby reducing friction, increasing the pile sinking construction rate, reducing the soil squeezing effect, and improving the pile sinking effect.

[0031] During construction:

[0032] When the pile head sinks to a height of 0.5-1m from the ground, start connecting the piles;

[0033] Before connecting the piles, use a wire brush to clean the dirt and rust on the two connecting piles to reveal the metallic luster;

[0034] Then, the upper section of the PHC pile 6 is hoisted, and a positioning guide device is installed. The worker screws the positioning guide device into the hoisted upper section of the PHC pile 6, and the pile driver slowly lowers the upper section of the PHC pile 6, and uses the positioning guide device to align the upper and lower sections of the PHC pile 7;

[0035] After that, spot weld 4-6 points evenly and symmetrically around the pile connection, and then formally weld;

[0036] After the weld has cooled naturally, you can continue to sink the piles. Use the piling equipment to drive the PHC piles into the ground and repeat the above steps until the driving depth of the PHC piles meets the set depth requirements.

[0037] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A PHC pile quick connection positioning and guiding device, characterized by: The positioning and guiding device as a whole is composed of a coaxial upper short cylinder and a lower cone. The outer diameters of the upper short cylinder and the lower cone plane are set according to the inner diameter of the PHC pile. The outer peripheral wall of the upper short cylinder is provided with an external thread, and extends outward from one of the axial ends along the axial direction to form the lower cone. In the device, the first solid body is centered within the radius R with the central axis as the center. Except for the first solid body, the rest of the parts are equally divided into six parts around the central axis along the circumferential direction, of which three parts are second solid bodies, and the other three parts are hollow bodies, and the second solid bodies and the hollow bodies are staggered. The device includes an inner core and an outer shell. The inner core is made of polyethylene and is fully filled in each solid body. The outer shell is made of stainless steel sheet. In the two sections of PHC pipe piles to be connected, the inner hole wall of the upper section of the PHC pipe pile for the pile connection side has an internal thread, which can be matched with the external thread of the upper short column through the internal thread, and the positioning guide device can be adaptively threadedly assembled in the hole of the upper section of the PHC pipe pile for the pile connection side through the upper short column, and the lower cone can be adaptively and completely embedded in the hole of the lower section of the PHC pipe pile for the pile connection side.

2. The PHC pile quick connection positioning and guiding device according to claim 1 is characterized by: The shell thickness is 0.1mm.

3. The PHC pile quick connection positioning and guiding device according to claim 1 or 2, characterized in that: The upper short cylinder has a diameter of 580mm and a height of 100mm, the lower cone has a height of 500mm and a plane diameter of 580mm.

4. The PHC pile quick connection positioning and guiding device according to claim 1 or 2, characterized in that: The radius R is 100 mm.

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