A pile-soil reinforcement device

Abstract

The utility model provides a kind of pile soil reinforcement device, belong to pile foundation technical field, solve the problem that soft soil environment, pipe pile foundation bearing capacity is low, easily subjected to wind erosion and the cost required for reinforcement is high, need to be frequently checked maintenance.The pile soil reinforcement device, comprising: the prefabricated pile made by prestressed high-strength concrete structure;Windproof structure installed on the prefabricated pile;Fixed structure vertically connected at the bottom of the windproof structure;Wherein, the fixed structure is welded on the windproof structure.The technical scheme of the utility model can improve the pile foundation bearing capacity including horizontal bearing capacity, uplift bearing capacity, compressive bearing capacity, can protect the soil around the pile not being eroded by wind, also can reduce the consumables and cost required for reinforcing pipe pile, shorten construction period, facilitate later maintenance.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation technology, and in particular to a pile perimeter soil reinforcement device. Background Technology

[0002] In adverse geological conditions such as soft soil foundations, loose sand, or high groundwater levels, insufficient strength of the soil around piles can easily lead to a decrease in pile side friction, an increase in pile displacement, and even insufficient bearing capacity or differential settlement of the pile foundation. The windward side of the pipe pile can also easily form a flow acceleration zone, exacerbating soil erosion and forming scour pits. Traditional methods, such as increasing pile diameter, increasing pile length, or laying crushed stone, would increase costs and require more frequent maintenance. Therefore, there is an urgent need for a device that can effectively reinforce the soil around the pile to improve this situation, while also increasing the bearing capacity of individual piles and preventing wind erosion. Utility Model Content

[0003] This utility model provides a soil reinforcement device for piles, which solves the problems of low bearing capacity of pipe pile foundations, susceptibility to wind erosion, high cost of reinforcement, and the need for frequent inspection and maintenance in soft soil environments.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] This utility model provides a soil reinforcement device for pile perimeter, comprising:

[0006] Precast piles made of prestressed high-strength concrete structures;

[0007] A windproof structure installed on the precast piles;

[0008] A fixed structure vertically connected to the bottom of the windproof structure;

[0009] The fixing structure is welded to the windproof structure.

[0010] Optionally, the precast piles are circular pipe piles or square pipe piles.

[0011] Optionally, the windproof structure includes a windproof panel composed of multiple semi-circular plates spliced ​​together, and the joint gaps between the semi-circular plates are adjustable.

[0012] Optionally, the windbreak has a notch at its center, and the notch is circular or square in shape corresponding to the shape of the pipe pile, and the precast pile is placed at the notch in the center of the windbreak.

[0013] Optionally, the windproof plate is made of steel plate.

[0014] Optionally, the fixing structure includes:

[0015] A semi-circular vertical plate welded to the bottom edge of the notch in the windbreak panel;

[0016] The vertical welding plate is welded to the bottom edge of the semi-annular plate at the welding position.

[0017] A rectangular vertical plate welded to the middle position of the bottom of the semi-annular plate;

[0018] Bolts that securely connect the vertical plates on both sides and adjust the gap between the semi-circular plates.

[0019] Optionally, multiple circular holes are provided on both sides of the docking vertical plate, the diameter of which corresponds to the outer diameter of the bolt, and the bolt passes through the circular holes to fix the docking vertical plate.

[0020] Optionally, the semi-circular vertical plate, the docking vertical plate, and the rectangular vertical plate are all arranged perpendicularly to the windproof plate.

[0021] Optionally, the semi-circular vertical plate, the docking vertical plate, and the rectangular vertical plate are all made of steel plate.

[0022] Optionally, the semi-circular vertical plate, the mating vertical plate, and the rectangular vertical plate are integrally formed or connected by welding.

[0023] The above-described solution of this utility model has at least the following beneficial effects:

[0024] The pile perimeter soil reinforcement device of this utility model includes: a precast pile made of prestressed high-strength concrete; a windproof structure installed on the precast pile; and a fixing structure vertically connected to the bottom of the windproof structure; wherein the fixing structure is welded to the windproof structure. The technical solution of this utility model can improve the bearing capacity of pile foundations, including horizontal bearing capacity, tensile bearing capacity, and compressive bearing capacity; protect the soil around the pile from wind erosion; reduce the material consumption and cost required for reinforcing pipe piles; shorten the construction period; and facilitate subsequent maintenance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the pile perimeter soil reinforcement device according to an embodiment of this utility model;

[0026] Figure 2 This is a top view of the pile perimeter soil reinforcement device according to an embodiment of this utility model;

[0027] Figure 3 This is a bottom view of the pile perimeter soil reinforcement device according to an embodiment of this utility model;

[0028] Figure 4 This is a front view of the pile perimeter soil reinforcement device according to an embodiment of this utility model;

[0029] Figure 5 This is a schematic diagram of the fixing structure of the pile perimeter soil reinforcement device according to an embodiment of this utility model.

[0030] Among them, 1. precast piles; 2. windproof structure; 3. fixed structure; 4. windproof plate; 5. semi-circular vertical plate; 6. butt joint vertical plate; 7. semi-circular plate; 8. rectangular vertical plate; 9. bolts. Detailed Implementation

[0031] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0032] like Figure 1 As shown, an embodiment of this utility model provides a pile perimeter soil reinforcement device, comprising:

[0033] 1. Precast piles made of prestressed high-strength concrete structures;

[0034] Windproof structure 2 installed on the precast pile 1;

[0035] A fixed structure 3 vertically connected to the bottom of the windproof structure 2;

[0036] The fixing structure 3 is welded onto the windproof structure 2.

[0037] In this embodiment, the precast pile 1 is made of prestressed high-strength concrete, which ensures the excellent mechanical properties of the precast pile 1. The prestressing technology allows the concrete to be subjected to a certain pressure before bearing external loads, thereby improving its crack resistance and bearing capacity. The high-strength concrete further ensures the robustness and durability of the precast pile 1, enabling it to work stably in various complex soil environments and providing a solid support foundation for subsequent pile perimeter soil reinforcement.

[0038] The windproof structure 2 is installed on the precast pile 1, mainly to cope with lateral forces such as wind, and to prevent the pile from swaying or tilting under the influence of wind and other factors, thereby affecting the stability of the soil around the pile. The windproof structure 2 needs to be exposed to the ground surface environment to ensure that it can effectively play its windproof role and ensure the stability of the entire pile soil reinforcement device in complex environments.

[0039] The fixing structure 3 is vertically connected to the bottom of the windproof structure 2, mainly serving the functions of fixing and connecting. The design and installation method of the fixing structure 3 directly affects the degree of bonding between the entire pile perimeter soil reinforcement device and the surrounding soil. Therefore, it is chosen to fix it to the windproof structure 2 by welding. Welding has the advantages of high connection strength and good stability, which can ensure that a firm connection is formed between the fixing structure 3 and the windproof structure 2, thereby effectively fixing the entire reinforcement device in the pile perimeter soil and enhancing the overall stability and bearing capacity of the pile perimeter soil.

[0040] The reinforcement device is fixed to the precast pile 1 by bolts 9, and the reinforcement device and the precast pile 1 are driven into the soil together for easy construction; the horizontally arranged windproof structure 2 shares the vertical load and transfers it to the soil below, increasing the compressive bearing capacity of the pile foundation; the fixed structure 3 shares the lateral load and transfers the lateral load to the surrounding soil, increasing the horizontal bearing capacity of the pile foundation, so that the surface soil bears most of the horizontal load, and the surface soil achieves a better reinforcement effect; there is frictional resistance between the fixed structure 3 and the soil around the pile, and the frictional resistance increases the tensile bearing capacity of the pile foundation.

[0041] like Figure 1 and Figure 3 As shown, in an optional embodiment of the present invention, the windproof structure 2 includes: a windproof plate 4 composed of multiple semi-annular plates 7 spliced ​​together, and the joint gap of the semi-annular plates 7 is adjustable.

[0042] In this embodiment, multiple semi-annular plates 7 cooperate to construct a complete and effective windbreak structure 4. Since each semi-annular plate 7 can be produced separately, the complexity of mold manufacturing and production processes is reduced, facilitating production and offering greater flexibility in actual installation and maintenance. When a semi-annular plate 7 is damaged or needs replacement, it is not necessary to disassemble and replace the entire windbreak 4; only the corresponding semi-annular plate needs to be operated on, greatly improving maintenance efficiency and reducing maintenance costs. The joint gaps of the semi-annular plates 7 are adjustable, allowing the windbreak structure 2 to better adapt to different pipe pile conditions. This adjustability also facilitates handling subsequent installation errors, ensuring the installation quality and stability of the windbreak structure 2.

[0043] like Figure 2 and Figure 3 As shown, in an optional embodiment of the present invention, the fixing structure 3 includes:

[0044] A semi-circular vertical plate 5 welded to the bottom edge of the notch in the windbreak plate 4;

[0045] The vertical welding plate 6 is welded to the bottom edge of the semi-annular plate 7 at the welding position.

[0046] A rectangular vertical plate 8 is welded to the middle position of the bottom of the semi-annular plate 7;

[0047] Bolts 9 are used to fix the vertical plates 6 on both sides and adjust the gap of the semi-circular plate 7.

[0048] The docking vertical plate 6 has multiple round holes on both sides, the diameter of which corresponds to the outer diameter of the bolt 9. The bolt 9 passes through the round holes and is fixedly connected to the docking vertical plate 6.

[0049] In this embodiment, the semi-circular vertical plate 5 is welded to the bottom edge of the notch of the windbreak plate 4. Its semi-circular outline can closely fit the shape of the notch of the windbreak plate 4, which not only enhances the structural strength of the windbreak plate 4 at the notch, but also provides a stable support foundation for the entire fixed structure 3. When the device is subjected to external force, the semi-circular vertical plate 5 can effectively disperse and transfer stress, preventing the windbreak plate 4 from deforming or being damaged at the notch, thereby ensuring the stability of the entire windbreak structure 2 and the fixed structure 3.

[0050] The vertical docking plate 6 is welded to the bottom edge of the docking position of the semi-annular plate 7, providing a connection point for the bolt 9. Multiple round holes are opened on both sides of the vertical docking plate 6. The diameter of the round holes corresponds to the outer diameter of the bolt 9, ensuring that the bolt 9 can pass smoothly through the round holes and achieve a reliable connection between the vertical docking plates 6.

[0051] The rectangular vertical plate 8 is welded to the middle of the bottom of the semi-circular plate 7, which enhances the structural strength and stability of the bottom of the semi-circular plate 7, effectively increasing its bending and compressive strength. When the device is subjected to vertical loads or horizontal wind forces, the rectangular vertical plate 8 can distribute some of the stress, preventing the semi-circular plate 7 from bending or deforming at the bottom, thereby ensuring the firmness of the connection between the entire fixed structure 3 and the semi-circular plate 7, as well as the stability of the entire pile-perimeter soil reinforcement device in the soil.

[0052] The bolt 9 is a component in the fixing structure 3 that realizes the connection and adjustment functions. It passes through the round hole opened on the docking vertical plate 6 and fixes the docking vertical plates 6 on both sides together. By tightening or loosening the bolt 9, the docking gap of the semi-annular plate 7 can be adjusted, so that the fixing structure 3 can adapt to various complex installation environments, ensure the splicing accuracy and overall flatness of the windproof plate 4, and thus ensure the windproof effect and stability of the entire pile perimeter soil reinforcement device.

[0053] like Figure 3As shown, in an optional embodiment of the present invention, the precast pile 1 is a circular pipe pile or a square pipe pile, the windbreak plate 4 has a notch at the center and the shape of the notch is a circle or a square corresponding to the shape of the pipe pile, and the precast pile 1 is placed at the notch in the center of the windbreak plate 4.

[0054] In this embodiment, the precast pile 1 is designed as a circular or square pipe pile. Circular pipe piles have advantages such as simple manufacturing process and uniform stress distribution. When subjected to external loads, the circular cross-section can evenly distribute stress throughout the pile body, reducing stress concentration and thus improving the pile's bearing capacity and resistance to damage. Simultaneously, during pile driving, the frictional force between the circular pipe pile and the surrounding soil is more evenly distributed, facilitating the smooth sinking of the pile to the designed depth. Square pipe piles have a relatively large contact area with the soil on their four sides during pile driving, providing better lateral resistance and enhancing pile stability. Furthermore, square pipe piles are easier to accurately position and fix when installing and connecting other components. Depending on different engineering geological conditions, bearing requirements, and construction environment factors, either circular or square pipe piles can be selected to meet actual needs.

[0055] The windbreak plate 4 has a notch at its center, the shape of which corresponds to the shape of the precast pile 1. This corresponding notch ensures that the precast pile 1 is accurately placed at the notch in the center of the windbreak plate 4, thus achieving rapid and accurate initial positioning, greatly improving installation efficiency and reducing subsequent adjustments due to installation deviations. This corresponding notch also allows for a tight fit between the windbreak plate 4 and the precast pile 1. When the device is subjected to external forces such as wind, the close contact between the windbreak plate 4 and the precast pile 1 effectively transfers stress, preventing stress concentration or localized deformation caused by gaps between them.

[0056] The precast pile 1 is placed at the notch in the center of the windbreak plate 4, providing a stable installation platform for the windbreak plate 4. At the same time, the windbreak plate 4 also plays a certain role in protecting and assisting the precast pile 1, preventing the pile from shaking or tilting, thereby ensuring the stability of the entire pile-surround soil reinforcement device in complex environments.

[0057] like Figure 4 and Figure 5 As shown, in an optional embodiment of the present invention, the semi-circular vertical plate 5, the docking vertical plate 6, and the rectangular vertical plate 8 are integrally formed or connected by welding, and the semi-circular vertical plate 5, the docking vertical plate 6, and the rectangular vertical plate 8 are all arranged perpendicularly to the windproof plate 4.

[0058] In this embodiment, the semi-circular vertical plate 5, the mating vertical plate 6, and the rectangular vertical plate 8 are connected by integral molding or welding. Integral molding ensures that the connection strength between each component reaches the highest level, thereby greatly improving the reliability and stability of the entire fixed structure 3. At the same time, integral molding can also reduce manufacturing processes, improve production efficiency, and reduce production costs. Welding has the advantage of high flexibility, allowing for precise positioning and assembly of each component according to actual needs. Although welding connections may introduce some stress concentration, the impact of stress concentration can be effectively reduced through reasonable welding process design and post-weld treatment, ensuring the overall performance of the fixed structure 3.

[0059] The semi-circular vertical plate 5, the connecting vertical plate 6, and the rectangular vertical plate 8 are all perpendicular to the windbreak plate 4, which enables each vertical plate to better withstand loads from different directions. When the device is subjected to lateral forces such as wind, the vertically arranged vertical plates can effectively transfer the lateral stress generated by the wind to the windbreak plate 4, and then distribute it to the entire pile perimeter soil reinforcement device through the windbreak plate 4, thereby improving the wind resistance and stability of the entire device. At the same time, the vertical arrangement can also reduce the shear stress between the vertical plate and the windbreak plate 4, reducing the risk of damage at the connection between the vertical plate and the windbreak plate 4.

[0060] like Figure 4 and Figure 5 As shown, in an optional embodiment of this utility model, the windproof plate 4, the semi-circular vertical plate 5, the connecting vertical plate 6, and the rectangular vertical plate 8 are all made of steel plate.

[0061] In this embodiment, the windbreak plate 4, the semi-circular vertical plate 5, the connecting vertical plate 6, and the rectangular vertical plate 8 are all made of steel plate. Steel has high strength and rigidity, which allows the windbreak plate 4 to maintain its shape stability and not easily deform when facing winds of different directions and intensities. At the same time, steel plate also has good durability and can withstand long-term natural environmental erosion, reducing performance degradation and maintenance frequency caused by material aging and corrosion, thereby reducing usage costs and maintenance workload. Therefore, steel was selected as the raw material for the components after comprehensively considering the functional requirements, mechanical properties, processing performance, durability, and usage environment of each component, thereby improving the performance, stability, and service life of the entire device.

[0062] The above-described embodiments of this utility model are cost-effective and have a significant reinforcement effect. They can provide stronger pile foundation bearing capacity for pipe piles, thereby protecting the soil around the pile from wind erosion, preventing the foundation soil from gradually thinning and the pile perimeter constraint from weakening. The device consumes less material, is inexpensive, can shorten the processing period, and facilitates later maintenance. It is highly practical for reinforcing the soil around the pile and improving the bearing capacity of a single pile.

[0063] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A soil reinforcement device for pile perimeter, characterized in that, include: Precast piles made of prestressed high-strength concrete structure (1); Windproof structure (2) installed on the precast pile (1); A fixed structure (3) vertically connected to the bottom of the windproof structure (2); The fixing structure (3) is welded onto the windproof structure (2).

2. The pile perimeter soil reinforcement device according to claim 1, characterized in that, The precast pile (1) is a circular pipe pile or a square pipe pile.

3. The pile perimeter soil reinforcement device according to claim 1, characterized in that, The windproof structure (2) includes a windproof plate (4) composed of multiple semi-circular plates (7) spliced ​​together, and the joint gap of the semi-circular plates (7) is adjustable.

4. The pile perimeter soil reinforcement device according to claim 3, characterized in that, The windbreak plate (4) has a gap at its center, and the shape of the gap is a circle or a square corresponding to the shape of the pipe pile. The precast pile (1) is placed at the gap in the center of the windbreak plate (4).

5. The pile perimeter soil reinforcement device according to claim 3, characterized in that, The windproof plate (4) is made of steel plate.

6. The pile perimeter soil reinforcement device according to claim 3, characterized in that, The fixing structure (3) includes: A semi-circular vertical plate (5) welded to the bottom edge of the notch in the windproof plate (4); The vertical welding plate (6) is welded to the bottom edge of the joint position of the semi-annular plate (7); A rectangular vertical plate (8) is welded to the middle position of the bottom of the semi-annular plate (7); Bolts (9) are used to fix the vertical plates (6) on both sides and adjust the gap of the semi-circular plate (7).

7. The pile perimeter soil reinforcement device according to claim 6, characterized in that, Multiple round holes are opened on both sides of the docking vertical plate (6). The diameter of the round holes corresponds to the outer diameter of the bolt (9). The bolt (9) passes through the round holes and is fixedly connected to the docking vertical plate (6).

8. The pile perimeter soil reinforcement device according to claim 6, characterized in that, The semi-circular vertical plate (5), the docking vertical plate (6), and the rectangular vertical plate (8) are all set perpendicular to the windproof plate (4).

9. The pile perimeter soil reinforcement device according to claim 6, characterized in that, The semi-circular vertical plate (5), the docking vertical plate (6), and the rectangular vertical plate (8) are all made of steel plate.

10. The pile perimeter soil reinforcement device according to claim 6, characterized in that, The semi-circular vertical plate (5), the butt joint vertical plate (6), and the rectangular vertical plate (8) are integrally formed or connected by welding.

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