Square pile and tubular pile adapter

Abstract

The utility model relates to an adapter for square piles and tubular piles, which is mounted between an upper square pile and a lower tubular pile. A square pile end plate is arranged on the top surface of the square pile adapter, and the square pile end plate is fixedly connected with the bottom surface of the square pile; a tubular pile end plate is arranged on the bottom surface of the tubular pile adapter, and the tubular pile end plate is fixedly connected with the top surface of the tubular pile; an upper flange plate is fixedly arranged on the bottom face of the square pile conversion connector, a lower flange plate is fixedly arranged on the top face of the pipe pile conversion connector, and the square pile conversion connector is connected with the pipe pile conversion connector through a flange. Outer stiffening rib plates are arranged on the outer walls of the square pile adapter and the tubular pile adapter; inner stiffening rib plates are arranged on the inner walls of the square pile crossover coupling and the tubular pile crossover coupling; for a super-long pile with the length larger than 28 m, especially when the upper section pile type and the lower section pile type are inconsistent, the adapter can be perfectly connected, and continuity and stability of a pile body structure are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pile construction, in particular to a conversion joint of square pile and pipe pile. BACKGROUND

[0002] Traditional square piles mostly adopt square cross sections, and the right angles at the edges are prone to be damaged due to collision during transportation and stacking. In addition, traditional square piles mostly adopt welded joints. For deep and thick soft soil sites, the pile length often reaches 30-60 meters, and a single section of pile cannot meet the bearing capacity requirement. Generally, 1-3 joints need to be set. However, the joint is the weak link in terms of corrosion resistance. In engineering practice, joint failure often leads to disbonding. In order to solve the problems of pile body corrosion resistance, joint disconnection failure, and cost saving, it is necessary to develop corrosion-resistant composite precast piles and corrosion-resistant steel joints. SUMMARY

[0003] The utility model solves the technical problem in the prior art and provides a conversion joint of square pile and pipe pile, which is combined and has good corrosion resistance.

[0004] The utility model solves the technical problem by the following technical scheme. A conversion joint of square pile and pipe pile is installed between the upper and lower square piles and pipe piles, and comprises the following parts.

[0005] The square pile conversion joint is provided with a square pile end plate on the top surface, and the square pile end plate is fixedly connected with the bottom surface of the square pile.

[0006] The pipe pile conversion joint is provided with a pipe pile end plate on the bottom surface, and the pipe pile end plate is fixedly connected with the top surface of the pipe pile.

[0007] An upper flange plate is fixedly arranged on the bottom surface of the square pile conversion joint, and a lower flange plate is fixedly arranged on the top surface of the pipe pile conversion joint. The square pile conversion joint and the pipe pile conversion joint are connected through the flanges.

[0008] External stiffening rib plates are arranged on the outer walls of the square pile conversion joint and the pipe pile conversion joint. The external stiffening rib plates are composed of a plurality of external stiffening rib plates opposite to the centers of the square pile conversion joint and the pipe pile conversion joint.

[0009] Internal stiffening rib plates are arranged on the inner walls of the square pile conversion joint and the pipe pile conversion joint. The internal stiffening rib plates are composed of a plurality of internal stiffening rib plates vertically connected in horizontal and vertical directions.

[0010] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the conversion joint of the square pile and the pipe pile, the top and the bottom of the external stiffened rib plate on the outer wall of the square pile conversion joint are respectively close to the bottom edge of the square pile end plate and the top edge of the upper flange plate, the top and the bottom of the external stiffened rib plate on the outer wall of the pipe pile conversion joint are respectively close to the bottom edge of the lower flange plate and the top edge of the pipe pile end plate.

[0011] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the conversion joint of the square pile and the pipe pile, the square pile conversion joint and the pipe pile conversion joint are formed as hollow cylindrical structures.

[0012] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the conversion joint of the square pile and the pipe pile, the square pile end plate is formed as a square plate structure.

[0013] The technical problems to be solved by the utility model can also be implemented by the following technical scheme, the conversion joint of the square pile and the pipe pile, the pipe pile end plate is formed as a circular plate structure.

[0014] Compared with the prior art, the utility model has the beneficial technical effects that: for the super-long pile with the length exceeding 28 meters, especially when the upper and lower pile sections are inconsistent, the conversion joint can be perfectly connected, ensuring the continuity and stability of the pile structure, by installing the conversion joint at the key position below the underground water level fluctuation area and adopting the reinforced welding or insertion technology, the corrosion resistance and durability of the joint are effectively improved, providing a solid guarantee for the long-term use of the pile foundation, especially when being arranged below the minimum water level, through the fine welding process or insertion structure, not only the demand of the pile foundation bearing capacity is met, but also the durability of the pile body in the complex environment is ensured, greatly prolonging the service life of the pile foundation. ACCURACY OF DRAWINGS

[0015] Figure 1 It is the main view structural schematic drawing of the conversion joint of the square pile and the pipe pile when the side length of the square pile is equal to the diameter of the pipe pile;

[0016] Figure 2 It is the main view structural schematic drawing of the conversion joint of the square pile and the pipe pile when the side length of the square pile is greater than the diameter of the pipe pile;

[0017] Figure 3 It is the main view structural schematic drawing of the conversion joint of the square pile and the pipe pile when the side length of the square pile is less than the diameter of the pipe pile;

[0018] Figure 4 It is the plan view structural schematic drawing of the square pile conversion joint when the side length of the square pile is equal to the diameter of the pipe pile;

[0019] Figure 5The top view structural schematic diagram of the pipe pile conversion joint is shown when the side length of the square pile is equal to the diameter of the pipe pile.

[0020] Reference signs: 1, square pile; 2, pipe pile; 3, square pile conversion joint; 4, pipe pile conversion joint; 5, square pile end plate; 6, pipe pile end plate; 7, upper flange plate; 8, lower flange plate; 9, outer stiffening rib plate; 10, inner stiffening rib plate. DETAILED DESCRIPTION

[0021] The specific technical scheme of the utility model is further described below with reference to the drawings, so as to further understand the utility model by the person skilled in the art without constituting a limitation on its rights.

[0022] Embodiment 1, refer to Figures 1-5 A square pile and pipe pile conversion joint is installed between the upper and lower two square piles 1 and the pipe pile 2, which comprises a square pile conversion joint 3 and a pipe pile conversion joint 4.

[0023] The square pile conversion joint 3 is provided with a square pile end plate 5 on the top surface, and the square pile end plate 5 is fixedly connected with the bottom surface of the square pile 1, and the square pile end plate 5 is formed into a square plate structure; the pipe pile conversion joint 4 is provided with a pipe pile end plate 6 on the bottom surface, and the pipe pile end plate 6 is fixedly connected with the top surface of the pipe pile 2, and the pipe pile end plate 6 is formed into a circular plate structure; an upper flange plate 7 is fixedly arranged on the bottom surface of the square pile conversion joint 3, and a lower flange plate 8 is fixedly arranged on the top surface of the pipe pile conversion joint 4, and the square pile conversion joint 3 and the pipe pile conversion joint 4 are connected through the flanges.

[0024] In order to strengthen the structural stability between the square pile conversion joint 3 and the pipe pile conversion joint 4, outer stiffening rib plates 9 are arranged on the outer walls of the square pile conversion joint 3 and the pipe pile conversion joint 4, the outer stiffening rib plates 9 are composed of a plurality of outer stiffening rib plates 9 opposite to the center of the square pile conversion joint 3 and the pipe pile conversion joint 4, and the number of the outer stiffening rib plates 9 can be selected according to the use requirement.

[0025] Inner stiffening rib plates 10 are arranged on the inner walls of the square pile conversion joint 3 and the pipe pile conversion joint 4, and the inner stiffening rib plates 10 are composed of a plurality of inner stiffening rib plates 10 vertically connected; the top and bottom of the outer stiffening rib plates 9 on the outer wall of the square pile conversion joint 3 are respectively close to the bottom edge of the square pile end plate 5 and the top edge of the upper flange plate 7, and the number of the inner stiffening rib plates 10 can be selected according to the use requirement.

[0026] The top and bottom of the outer stiffening rib plates 9 on the outer wall of the pipe pile conversion joint 4 are respectively close to the bottom edge of the lower flange plate 8 and the top edge of the pipe pile end plate 6, and the square pile conversion joint 3 and the pipe pile conversion joint 4 are both formed into a hollow cylindrical structure.

[0027] After the conversion joint of square pile 1 and pipe pile 2 in Example 1 is adopted, for the super-long pile (especially the length exceeding 28 meters and the inconsistent upper and lower section pile type), the conversion joint can ensure the continuity and stability of the pile structure, is installed at the key position below the groundwater level fluctuation area, and adopts the reinforcing welding or insertion technology, effectively improves the corrosion resistance and durability of the joint, such design not only meets the demand of pile foundation bearing capacity, but also ensures the durability of the pile in complex environment, greatly prolongs the service life of the pile foundation, and provides solid guarantee for long-term use of the pile foundation.

Claims

1. A conversion joint for square piles and pipe piles, characterized by: It is installed between the upper and lower two square piles and pipe piles, which includes; The square pile conversion joint is provided with a square pile end plate on the top surface, and the square pile end plate is fixedly connected with the bottom surface of the square pile; The pipe pile conversion joint is provided with a pipe pile end plate on the bottom surface, and the pipe pile end plate is fixedly connected with the top surface of the pipe pile; An upper flange plate is fixedly arranged on the bottom surface of the square pile conversion joint, and a lower flange plate is fixedly arranged on the top surface of the pipe pile conversion joint, and the square pile conversion joint and the pipe pile conversion joint are connected through the flanges; The outer stiffening rib plates are arranged on the outer walls of the square pile conversion joint and the pipe pile conversion joint, and the outer stiffening rib plates are composed of a plurality of outer stiffening rib plates which are opposite to the centers of the square pile conversion joint and the pipe pile conversion joint; The inner stiffening rib plates are arranged on the inner walls of the square pile conversion joint and the pipe pile conversion joint, and the inner stiffening rib plates are composed of a plurality of inner stiffening rib plates which are vertically connected.

2. A conversion joint for square piles and pipe piles according to claim 1, characterized in that: The top and bottom of the outer stiffening rib plate on the outer wall of the square pile conversion joint are respectively close to the bottom edge of the square pile end plate and the top edge of the upper flange plate, and the top and bottom of the outer stiffening rib plate on the outer wall of the pipe pile conversion joint are respectively close to the bottom edge of the lower flange plate and the top edge of the pipe pile end plate.

3. The conversion joint of a square pile and a pipe pile according to claim 1, characterized in that: The square pile conversion joint and the pipe pile conversion joint are both formed as hollow cylindrical structures.

4. The conversion joint of square pile and pipe pile according to claim 1, characterized in that: The square pile end plate is formed as a square plate structure.

5. The conversion joint of square pile and pipe pile according to claim 1, characterized in that: The pipe pile end plate is formed as a circular plate structure.

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