Anti-floating pressure-bearing pile
By designing anti-buoyancy bearing piles for precast reinforced concrete components, the problem of easy corrosion of anti-buoyancy bearing piles in humid environments was solved, and the corrosion resistance and friction were improved, ensuring the anti-buoyancy performance and service life of prefabricated concrete water tanks.
Patent Information
- Application Number
- CN202520042235.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing anti-buoyancy bearing piles are prone to corrosion in humid environments, which leads to a decrease in friction, a short service life, and an inability to effectively resist the buoyancy of prefabricated concrete pools, affecting construction quality and safety.
The pile is constructed using precast reinforced concrete components. The pile body has a groove around its outer perimeter and a cone-shaped head at the lower end. Horizontal through holes and steel bar joints are also provided on the pile body to improve friction and ease of use, ensuring a firm connection with the water tank foundation.
It improves the corrosion resistance and friction of the anti-buoyancy bearing piles, extends their service life, ensures the anti-buoyancy effect and service life of the prefabricated concrete water tank, and has a simple structure that is easy to prefabricate.
Smart Images

Figure CN223867217U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete water tank technology, specifically to an anti-buoyancy bearing pile. Background Technology
[0002] A water tank is a water storage facility with seepage prevention capabilities. It can effectively alleviate water shortages and plays a significant role in urban flood control and drainage, thus its application is becoming increasingly widespread. Prefabricated concrete water tanks are one type of water tank. In recent years, with the integration of low-carbon and environmentally friendly construction concepts into the construction industry, prefabricated concrete water tanks have been widely used in fire protection, domestic water supply, and rainwater harvesting.
[0003] During the construction of prefabricated concrete water tanks, anti-buoyancy bearing piles are generally driven between the bottom slab of the water tank and the foundation. The friction between the anti-buoyancy bearing piles and the foundation, as well as the supporting force at the pile ends, balance the buoyancy of the groundwater on the water tank, thereby ensuring that the prefabricated concrete water tank will not float when the groundwater level is high.
[0004] However, most existing anti-buoyancy bearing piles used between the bottom slab of a water tank and the foundation are made of ordinary steel. Their structure generally includes a pile body with helical blades on its outer periphery. These anti-buoyancy bearing piles are prone to corrosion during use due to humid environments, especially the helical blades on their outer periphery, which easily corrode and detach. This significantly reduces the friction between the pile body and the foundation, severely diminishing the anti-buoyancy effect of the pile on the prefabricated concrete water tank. Furthermore, the service life of these anti-buoyancy bearing piles is significantly shorter than that of the prefabricated concrete water tank. Once the anti-buoyancy bearing pile is severely corroded, breaks, and detaches from the bottom slab of the water tank, the prefabricated concrete water tank will float. Therefore, this utility model proposes an anti-buoyancy bearing pile to solve the above-mentioned technical problems. Summary of the Invention
[0005] The purpose of this invention is to overcome the defects in the existing technology and provide an anti-buoyancy bearing pile, which is a precast reinforced concrete component. Compared with traditional anti-buoyancy bearing piles made of ordinary steel, it has better corrosion resistance. Furthermore, the groove on the outer periphery of the pile body significantly increases the friction between the pile body and the foundation soil of the water tank, thereby ensuring that the anti-buoyancy bearing pile pressed into the foundation soil has a long-lasting and good anti-buoyancy performance for the precast concrete water tank, achieving the effect that the anti-buoyancy performance of the anti-buoyancy bearing pile is the same as the lifespan of the precast concrete water tank. The lower end of the anti-buoyancy bearing pile is designed as a cone head, which helps to improve the convenience of pressing the pile body into the foundation soil. The overall structure design is simple, and it is highly feasible and practical to implement it in the factory prefabrication.
[0006] To achieve the above objectives, the technical solution of this utility model is to design an anti-buoyancy bearing pile, including a pile body, wherein the pile body is a precast reinforced concrete component, the lower end of the pile body is provided with a conical head, and the outer peripheral side of the pile body is provided with a groove.
[0007] This utility model discloses an anti-buoyancy bearing pile, which is a precast reinforced concrete component. Compared with traditional anti-buoyancy bearing piles made of ordinary steel, it has better corrosion resistance. Furthermore, the grooves on the outer periphery of the pile body significantly increase the friction between the pile body and the foundation soil of the water tank, thereby ensuring that the anti-buoyancy bearing pile, when pressed into the foundation soil, has a long-lasting and good anti-buoyancy performance for the precast concrete water tank, achieving the effect that the anti-buoyancy bearing pile has the same anti-buoyancy performance and lifespan as the precast concrete water tank. The lower end of the anti-buoyancy bearing pile is designed with a conical head, which helps to improve the ease of pressing the pile body into the foundation soil. The overall structural design is simple, and it is highly feasible and practical to implement it in the factory prefabrication.
[0008] A preferred technical solution is that the pile body is provided with a plurality of horizontal through holes spaced apart along its longitudinal length. By providing horizontal through holes on the pile body, on the one hand, it helps to reduce the overall weight of the anti-buoyancy bearing pile of this utility model, improve its ease of use, and save material resources; on the other hand, it helps to improve the interlocking force between the pile body and the foundation soil, thereby further improving the anti-buoyancy performance of the anti-buoyancy bearing pile of this utility model when it is pressed into the foundation soil.
[0009] A further preferred technical solution is that the upper end of the reinforcing steel bars pre-embedded inside the pile body extends out of the upper end face of the pile body to form several reinforcing steel bar joints. When this utility model of anti-buoyancy bearing pile is used, most of the lower end of the pile body is pressed into the soil of the water tank foundation, and the upper end of the pile body extends into the installation hole reserved in the precast water tank bottom slab or into the reinforcing steel cage of the cast-in-place water tank bottom slab. The reinforcing steel bar joints at the upper end of the pile body can be welded and fixed together with the truss bars reserved on the upper side of the precast water tank bottom slab or the reinforcing steel cage of the cast-in-place water tank bottom slab, and then concrete grout is poured to form the water tank bottom slab, ensuring the firmness of the connection between the upper end of the pile body and the water tank bottom slab.
[0010] A further preferred technical solution is that the upper end of the pile body has an upward-facing mounting groove, and the upper end of the pile body also has a second horizontal through hole penetrating the mounting groove. In use, the anti-buoyancy bearing pile of this invention is inserted and installed onto the mounting plate on the end of the pressing equipment through the mounting groove. A pin is inserted into the second horizontal through hole on the pile body and the corresponding mounting hole on the mounting plate, so that the anti-buoyancy bearing pile of this invention is fixed to the mounting plate on the end of the pressing equipment by the pin, ensuring convenient and efficient installation of the anti-buoyancy bearing pile on the end of the pressing equipment.
[0011] A further preferred technical solution involves the upper ends of the reinforcing bars pre-embedded inside the pile body extending out of the upper end face of the pile body to form several reinforcing bar joints. These reinforcing bar joints are distributed around the outer perimeter wall of the installation groove. Because the reinforcing bar joints are distributed around the outer perimeter wall of the installation groove, when the upper end of the pile body extends into the pre-reserved installation hole in the precast water tank bottom slab or into the reinforcing cage of the cast-in-place water tank bottom slab, the reinforcing bar joints evenly distributed on the upper end face of the pile body can be welded and fixed to the truss bars or reinforcing cage on the water tank bottom slab, further ensuring the strong connection between the pile body and the water tank bottom slab.
[0012] A further preferred technical solution is that the cross-section of the pile body is either circular or polygonal. The diverse cross-sectional shapes of the pile body ensure that the anti-buoyancy bearing pile of this invention can be designed into a shape that facilitates driving into the soil, thereby improving the smoothness of driving the pile body into the soil during use.
[0013] A further preferred technical solution is that the cross-section of the pile body is rectangular, and the grooves are provided along the longitudinal length direction on the four vertical outer surfaces of the pile body. The horizontal through hole is vertically opened on a group of vertical outer surfaces of the pile body with a larger transverse width.
[0014] The advantages and beneficial effects of this utility model are as follows:
[0015] 1. This utility model discloses an anti-buoyancy bearing pile, which is a precast reinforced concrete component. Compared with traditional anti-buoyancy bearing piles made of ordinary steel, it has better corrosion resistance. Furthermore, the groove on the outer periphery of the pile body significantly increases the friction between the pile body and the foundation soil of the water tank, thereby ensuring that the anti-buoyancy bearing pile pressed into the foundation soil has a long-lasting and good anti-buoyancy performance for the precast concrete water tank, achieving the effect that the anti-buoyancy performance of the anti-buoyancy bearing pile is the same as the lifespan of the precast concrete water tank. The lower end of the anti-buoyancy bearing pile is designed as a cone head, which helps to improve the convenience of pressing the pile body into the foundation soil. The overall structure design is simple, and it is highly feasible to implement in the factory prefabrication, making it highly practical.
[0016] 2. The pile body is provided with several horizontal through holes spaced apart along its longitudinal length. By providing horizontal through holes on the pile body, on the one hand, it helps to reduce the overall weight of the anti-buoyancy bearing pile of this utility model, improve its ease of use, and save material resources; on the other hand, it helps to improve the interlocking force between the pile body and the foundation soil, thereby further improving the anti-buoyancy performance of the anti-buoyancy bearing pile of this utility model when it is pressed into the foundation soil.
[0017] 3. The upper ends of the reinforcing bars pre-embedded inside the pile body extend out of the upper end face of the pile body to form several reinforcing bar joints. When this utility model of anti-buoyancy bearing pile is used, most of the lower end of the pile body is pressed into the soil of the water tank foundation, and the upper end of the pile body extends into the installation hole reserved in the precast water tank bottom slab or into the reinforcing cage of the cast-in-place water tank bottom slab. The reinforcing bar joints at the upper end of the pile body can be welded and fixed together with the truss bars reserved on the upper side of the precast water tank bottom slab or the reinforcing cage of the cast-in-place water tank bottom slab. Then, concrete grout is poured to form the water tank bottom slab, ensuring the firm connection between the upper end of the pile body and the water tank bottom slab.
[0018] 4. The upper ends of the reinforcing bars pre-embedded inside the pile body extend out of the upper end face of the pile body to form several reinforcing bar joints. These reinforcing bar joints are distributed around the outer peripheral sidewall of the installation groove. Because of this distribution, when the upper end of the pile body extends into the pre-reserved installation hole in the precast water tank bottom slab or into the reinforcing cage of the cast-in-place water tank bottom slab, the reinforcing bar joints evenly distributed on the upper end face of the pile body can be welded and fixed to the truss bars or reinforcing cage on the water tank bottom slab, further ensuring the strong connection between the pile body and the water tank bottom slab.
[0019] 5. The upper end of the pile body has an upward-facing mounting groove, and the upper end of the pile body also has a second horizontal through hole penetrating the mounting groove. In use, the anti-buoyancy bearing pile of this utility model is inserted and installed onto the mounting plate on the end of the pressing equipment through the mounting groove. A pin is inserted into the second horizontal through hole on the pile body and the corresponding mounting hole on the mounting plate, so that the anti-buoyancy bearing pile of this utility model is fixed to the mounting plate on the end of the pressing equipment by the pin, ensuring the convenient and efficient installation of the anti-buoyancy bearing pile on the end of the pressing equipment.
[0020] 6. The cross-section of the pile body is either circular or polygonal. The diverse cross-sectional shapes of the pile body ensure that the anti-buoyancy bearing pile of this invention can be designed into a shape that facilitates driving into the soil, thereby improving the smoothness of driving the pile body into the soil during use. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of an anti-buoyancy bearing pile from the right front view in Example 1;
[0022] Figure 2 This is a right view of an anti-buoyancy bearing pile in Example 1;
[0023] Figure 3 This is a longitudinal sectional view of an anti-buoyancy bearing pile in Example 1 along the front-back direction;
[0024] Figure 4 This is a partial cross-sectional view of the assembly relationship of an anti-buoyancy bearing pile at the end of the crimping equipment in Example 1;
[0025] Figure 5 This is a three-dimensional structural diagram of an anti-buoyancy bearing pile from the right front side in Example 2.
[0026] In the diagram: 1. Pile body; 2. End of crimping equipment; 3. Pin; 1-1. Conical head; 1-2. Groove; 1-3. Horizontal through hole one; 1-4. Mounting groove; 1-5. Horizontal through hole two; 1-6. Rebar joint; 2-1. Mounting plate. Detailed Implementation
[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.
[0028] Example 1
[0029] like Figures 1-3 As shown, an anti-buoyancy bearing pile includes a pile body 1, which is a precast reinforced concrete component. The lower end of the pile body 1 is provided with a cone head 1-1, and the outer peripheral side of the pile body 1 is provided with a groove 1-2.
[0030] Preferably, the pile body 1 is provided with a plurality of horizontal through holes 1-3 at intervals along the longitudinal length direction.
[0031] More preferably, the upper end of the pile body 1 has an upward-facing mounting groove 1-4, and the upper end of the pile body 1 is also provided with a horizontal through hole 1-5 penetrating the mounting groove 1-4.
[0032] More preferably, the pile body 1 has a rectangular cross-section, and the grooves 1-2 are provided along the longitudinal length direction on each of the four vertical outer surfaces of the pile body 1. The horizontal through holes 1-3 are vertically opened on a set of vertical outer surfaces of the pile body 1 with a larger transverse width. Specifically, the cross-section of the pile body 1 can also be a circle, a triangle, a trapezoid, or a polygon.
[0033] Example 2
[0034] like Figure 5 As shown, an anti-buoyancy bearing pile differs from the anti-buoyancy bearing pile in Embodiment 1 in that: the upper end of the steel bar pre-embedded inside the pile body 1 extends out of the upper end face of the pile body 1 to form several steel bar joints 1-6, and the several steel bar joints 1-6 are distributed around the outer peripheral sidewall of the installation groove 1-4.
[0035] The working principle of the anti-buoyancy bearing pile in Example 1 or 2:
[0036] Step 1: Insert the anti-buoyancy bearing pile of this utility model into the mounting plate 2-1 on the end 2 of the pressing equipment through the mounting groove 1-4. Insert the pin 3 through the horizontal through hole 1-5 on the pile body 1 and the corresponding mounting hole on the mounting plate 2-1, thus fixing the anti-buoyancy bearing pile of this utility model to the mounting plate 2-1 on the end 2 of the pressing equipment via the pin 3 (see attached). Figure 4 );
[0037] Step 2: Lift the anti-buoyancy bearing pile of this utility model through the end 2 of the pressing device and move it to the designated position of the foundation. Then, press most of the anti-buoyancy bearing pile of this utility model into the soil of the foundation through the end 2 of the pressing device. Remove the pin 3 and continue to press the anti-buoyancy bearing pile of this utility model into the soil of the foundation through the end 2 of the pressing device until the specified depth is reached. Repeat steps 1 and 2 until all the specified number of anti-buoyancy bearing piles are pressed into the designated position of the foundation, and then carry out the subsequent construction operation of the prefabricated concrete water tank.
[0038] This utility model discloses an anti-buoyancy bearing pile, which is a precast reinforced concrete component. Compared with traditional anti-buoyancy bearing piles made of ordinary steel, it has better corrosion resistance. Furthermore, the grooves on the outer periphery of the pile body significantly increase the friction between the pile body and the foundation soil of the water tank, thereby ensuring that the anti-buoyancy bearing pile, when pressed into the foundation soil, has a long-lasting and good anti-buoyancy performance for the precast concrete water tank, achieving the effect that the anti-buoyancy bearing pile has the same anti-buoyancy performance and lifespan as the precast concrete water tank. The lower end of the anti-buoyancy bearing pile is designed with a conical head, which helps to improve the ease of pressing the pile body into the foundation soil. The overall structural design is simple, and it is highly feasible and practical to implement it in the factory prefabrication.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An anti-buoyancy bearing pile, characterized in that, The pile body (1) is a precast reinforced concrete component. The lower end of the pile body (1) is provided with a cone head (1-1), and the outer peripheral side of the pile body (1) is provided with a groove (1-2). The cross-section of the pile body (1) is rectangular. The grooves (1-2) are provided along the longitudinal length direction on the four vertical outer surfaces of the pile body (1). The horizontal through hole (1-3) is vertically opened on a set of vertical outer surfaces of the pile body (1) with a larger transverse width.
2. The anti-buoyancy bearing pile as described in claim 1, characterized in that, The pile body (1) is provided with several horizontal through holes (1-3) spaced apart along the longitudinal length direction.
3. The anti-buoyancy bearing pile as described in claim 2, characterized in that, The upper ends of the steel bars pre-embedded inside the pile body (1) extend out of the upper end face of the pile body (1) to form several steel bar joints (1-6).
4. The anti-buoyancy bearing pile as described in any one of claims 1 to 3, characterized in that, The pile body (1) has an upward-facing mounting groove (1-4) at its upper end, and a horizontal through hole (1-5) penetrating the mounting groove (1-4) at its upper end.
5. The anti-buoyancy bearing pile as described in claim 4, characterized in that, The upper end of the steel bar pre-embedded inside the pile body (1) extends out of the upper end face of the pile body (1) to form a number of steel bar joints (1-6), and the number of steel bar joints (1-6) are distributed around the outer peripheral side wall of the installation groove (1-4).