Anti-drifting pipe pile
By setting up expansion plates and connecting rods on the pipe piles and expanding and grouting during the pile driving process, the problem of drift caused by insufficient friction in traditional pipe piles is solved, and the stability of pipe piles is improved and the safety of building is guaranteed.
Patent Information
- Application Number
- CN202323644017.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2033-12-29
AI Technical Summary
After the traditional pipe piles are driven into the ground, due to insufficient friction, they are prone to drifting, which affects the stability and safety of the building.
By setting up an expansion plate and a connecting rod on the pipe pile, the expansion plate is retracted and attached to the surface of the pile body during pile driving. After reaching the predetermined depth, the expansion plate expands laterally under the pulling of the connecting rod, extrudes the soil, and grouting through the grouting pipe to enhance the friction between the pile body and the soil.
It effectively reduces the drift of pipe piles, improves the stability of pipe piles, and reduces the safety hazards of buildings.
Smart Images
Figure CN222796377U_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of building foundations, in particular to an anti-drifting pipe pile. Background Art
[0002] Traditional pipe piles are widely used in building foundation projects. They are usually made of steel pipes, concrete or other materials. These pipe piles are driven into the ground to serve as the foundation support structure of the building. However, traditional pipe piles often have some technical problems after being driven into the ground.
[0003] First, when traditional pipe piles are driven into the ground, friction is their main supporting force. However, due to changes in soil properties, the influence of groundwater levels and other uncertain factors, friction is often not enough to ensure the stability of the pipe piles. This may cause the pipe piles to drift in the soil layer, thus affecting the stability and safety of the building.
[0004] Secondly, the interaction between traditional pipe piles and the surrounding soil after they are driven into the ground is a complex issue. Factors such as soil properties, particle size, and water content will affect the friction and cohesion between the pipe piles and the soil. Therefore, how to improve the friction and cohesion between the pipe piles and the surrounding soil and reduce the drift of the pipe piles is a problem that needs to be solved urgently.
[0005] In addition, after traditional pipe piles are driven into the ground, grouting operations are often required to strengthen their connection with the surrounding soil. However, traditional grouting operations often have some problems, such as uneven grouting and poor grout solidification. This not only affects the stability of the pipe piles, but may also lead to foundation quality problems for buildings. Utility Model Content
[0006] The utility model provides an anti-drift pipe pile, which is mainly composed of a pile body, a grouting pipe, a soil-breaking piece and a plurality of expansion units.
[0007] Specifically, the anti-drift pipe pile of the present invention is realized by the following technical scheme: during the piling process, the expansion plate is folded and attached to the surface of the pile body. When the pile body reaches a predetermined depth, the expansion plate is hammered, and the expansion plate is pulled horizontally by the connecting rod, so that the soft soil on the surrounding side is squeezed, and grouting is performed through the grouting pipe to enhance the friction between the pile body and the surrounding soil body, thereby reducing the drift of the pile body.
[0008] In one technical solution of the present invention, the pile body is a hollow structure that runs through longitudinally, and the earth-breaking piece is arranged at the bottom end of the pile body. A plurality of expansion units are evenly distributed around the pile body, and each expansion unit includes an expansion plate and two connecting rods. One end of the connecting rod is hinged to the pile body, and the other end is hinged to the expansion plate. The expansion plate is arranged longitudinally so that the expansion plate, the two connecting rods and the pile body form a parallel connecting rod mechanism; during the piling process, the expansion plate is folded and attached to the surface of the pile body. When the pile body reaches a predetermined depth, the expansion plate is hammered, and the expansion plate expands laterally under the traction of the connecting rod, so that the soft soil on the surrounding side is squeezed. Then grouting is carried out through the grouting pipe. After the cement slurry solidifies, the expansion space of the expansion plate is filled, which enhances the friction between the pile body and the surrounding soil and reduces the drift of the pile body.
[0009] In one technical solution of the present invention, the grouting pipe extends from the upper end of the pile body to the inside and penetrates the entire pile body. During the piling process, the grouting pipe can simultaneously perform grouting operations to timely fill the gap left by the expansion plate after expansion, further enhancing the friction between the pile body and the surrounding soil.
[0010] In one technical solution of the present invention, a guard plate extending to the surface of the pile body is provided at the lower end of the expansion plate of each expansion unit. The guard plate can protect the expansion plate and the connecting rod from external interference and damage, and can also improve the stability and durability of the entire pipe pile. Beneficial Effects
[0011] The anti-drift pipe pile of the present invention realizes stable fixation of the pile body during the piling process through a specific structural design, and after the pile body reaches a predetermined depth, grouting is performed around the pile body through a grouting pipe to enhance the friction between the pile body and the surrounding soil and reduce the drift of the pile body. The invention improves the stability of the pipe pile and reduces the safety hazards of the building. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic structural diagram of the anti-drift pipe pile of the present invention.
[0013] Figure 2 It is a schematic diagram of the use of the anti-drift pipe pile of the present invention.
[0014] Figure 3 2 is a distribution diagram of the diffusion unit of the embodiment.
[0015] Figure 4 It is a schematic diagram of the structure of the earth-breaking piece.
[0016] Figure 5 It is a schematic diagram of the state when the diffusion unit is hammered. DETAILED DESCRIPTION
[0017] The present invention is further described below with reference to the accompanying drawings and embodiments:
[0018] A drift-resistant pipe pile comprises a pile body 1, a grouting pipe 2, a breaking piece 3 and 8 expansion units 4. The pile body is a hollow structure that runs through longitudinally, and the breaking piece is arranged at the bottom end of the pile body. The 8 expansion units 4 are evenly distributed around the pile body, and each expansion unit comprises an expansion plate 41 and two connecting rods 42. One end of the connecting rod is hinged to the pile body, and the other end is hinged to the expansion plate. The expansion plate is arranged longitudinally so that the expansion plate, the two connecting rods and the pile body form a parallel connecting rod mechanism. The pile body is a hollow structure that runs through longitudinally, and the breaking piece 3 is arranged at the bottom end of the pile body. A cone of a grouting cavity is arranged in the middle of the breaking piece, and four triangles 31 are connected to its side walls. There is a grouting cavity connected to the grouting cavity in the triangle; the grouting pipe extends from the upper end of the pile body to the inside of the pile body. During the piling process, the expansion plate is retracted and attached to the surface of the pile body. When the pile body reaches a predetermined depth, as Figure 3 As shown, the expansion plate 41 is hit by the pad 6, and the expansion plate expands laterally under the pulling of the connecting rod, so that the soft soil on the surrounding side is squeezed. Then grouting is performed through the grouting pipe. After the cement slurry solidifies, the expansion space of the expansion plate is filled, which enhances the friction between the pile body and the surrounding soil body and reduces the drift of the pile body.
[0019] More specifically, a plurality of circular hoops 5 are fixed in the middle of the pile body, and the corresponding ends of the connecting rod are hinged to the hoops 5 so that one end of the connecting rod is hinged to the pile body.
[0020] Another anti-drift pile is similar to the above, but the lower end of the expansion plate of each expansion unit is provided with a guard plate 43 extending to the pile surface. The guard plate can protect the expansion plate and the connecting rod from external interference and damage, and can also improve the stability and durability of the entire pile.
[0021] The above is only one of the preferred embodiments of the present invention and does not limit the specific implementation of the present invention. For those skilled in the art, equivalent substitutions or modifications can be made according to the above description, and these substitutions and modifications should be included in the protection scope of the present invention.
Claims
1. An anti-drift pipe pile, characterized in that: It comprises a pile body, a grouting pipe, a breaking piece and a plurality of expansion units; the expansion unit comprises an expansion plate and two connecting rods, one end of the connecting rod is hinged to the pile body, and the other end is hinged to the expansion plate, the expansion plate is longitudinally arranged so that the expansion plate, the two connecting rods and the pile body form a parallel connecting rod mechanism; a plurality of expansion units are evenly distributed around the pile body; the pile body is a hollow structure which penetrates longitudinally, the breaking piece is arranged at the bottom end of the pile body, a cone of a grouting cavity is arranged in the middle of the breaking piece, a plurality of triangles are connected to its side wall, and a grouting cavity connected to the grouting cavity is arranged in the triangle; the grouting pipe extends from the upper end of the pile body to the inside of the pile body.
2. The anti-drift pipe pile according to claim 1, characterized in that: The lower end of the expansion plate is provided with a guard plate extending to the surface of the pile body.
3. The anti-drift pipe pile according to claim 1, characterized in that: A plurality of circular hoops are fixedly arranged in the middle of the pile body, and the corresponding ends of the connecting rod are hingedly connected to the hoops so that one end of the connecting rod is hingedly connected to the pile body.