Low-vibration anti-settling micro pile group reinforcement device
By designing load-bearing and anti-settlement components, the problems of insufficient friction between piles and soil and soil settlement between piles in micro-pile group reinforcement devices are solved, achieving stable reinforcement under various foundation conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU WEIZHONG CONSTR ENG CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing micropile group reinforcement devices have poor bonding between the pile and the foundation soil interface, insufficient friction, difficulty in mobilizing the soil around the pile to participate in the stress, and lack of active reinforcement measures for the soil between the piles, resulting in serious settlement problems.
It employs load-bearing components and anti-settlement components. The load-bearing components increase friction by contacting the soil through the load-bearing cylinder, while the anti-settlement components prevent settlement by contacting the soil over a large area through the anti-settlement plate. Combined with the arc-shaped elastic plate and clamping plate, it provides stability.
It significantly improves the friction between the pile and the soil, prevents settlement, and enhances the stability of the pile. In particular, it effectively addresses the problem of high compressibility of the soil between piles in soft soil foundations, thus improving the reinforcement effect.
Smart Images
Figure CN224531635U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of micro-pile group reinforcement technology, specifically a low-vibration anti-settlement micro-pile group reinforcement device. Background Technology
[0002] Low-vibration anti-settlement micropile group reinforcement is a composite foundation reinforcement method that combines anti-settlement and micropile group technology. It is mainly used to solve the settlement problems of soft soil layers, uneven foundations or existing buildings. It consists of a pile group with multiple piles, and the pile length can be adjusted according to geological conditions. It generally penetrates into stable soil layers. By using the friction or end bearing force between the pile and the surrounding soil, the upper load is transferred to the deep stable soil layer, thereby improving the bearing capacity of the foundation. This combination of technologies can be used in foundation reinforcement projects with minimal environmental impact. Micropile group reinforcement devices have been widely used due to their convenient construction and minimal impact on the surrounding environment.
[0003] The micropile group reinforcement device still has significant shortcomings in its synergistic effect with the foundation soil, which restricts the further improvement of its reinforcement effect. In terms of the interface between the pile and the foundation soil, the existing devices generally have the problem of loose bonding. Insufficient grouting or a relatively smooth pile surface during the construction of micropile will result in a significant lack of friction between the pile and the surrounding soil, making it difficult to fully mobilize the surrounding soil to participate in the stress process. Since the bond between the pile and the sand is inherently weak, the upper load is mainly borne by the pile alone, which can easily lead to foundation settlement due to pile overload. Furthermore, micropile group reinforcement devices also have obvious defects in the reinforcement of the soil between piles. Most devices rely solely on the bearing capacity of the micropile itself to bear the upper load, lacking active reinforcement measures for the soil between piles. This leads to the soil between piles settling easily under special geological conditions such as soft soil foundations, due to its high compressibility. This causes the micropile body to sink along with it, seriously affecting the anti-settlement effect of the device and making it difficult to meet the reinforcement requirements under complex foundation conditions.
[0004] Therefore, there is an urgent need for a low-vibration anti-settlement micro-pile group reinforcement device to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a low-vibration anti-settlement micro-pile group reinforcement device to solve the problems mentioned in the background art, such as insufficient friction due to poor bonding between the pile body and the foundation soil, difficulty in mobilizing the soil around the pile to participate in the stress, and lack of active reinforcement measures for the soil between the piles, which easily leads to settlement.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-vibration anti-settlement micropile group reinforcement device, including a connecting frame, and further including: a force-bearing component, disposed on the connecting frame, for strengthening the friction between the micropile group and the surrounding soil; and an anti-settlement component, disposed on the connecting frame, for preventing settlement of the micropile group.
[0007] Preferably, the force-bearing component includes a fixing hole, which is formed on the connecting frame. A micropile is provided on the connecting frame. A fixing plate is threaded to the outer wall of the micropile. The fixing plate is above the connecting frame. The micropile passes through the fixing hole. A force-bearing cylinder is fixedly connected to the outer wall of the micropile. The force-bearing cylinder has multiple force-bearing grooves.
[0008] Preferably, a pressure plate is fixedly connected to the bottom surface of the force-bearing cylinder, and four slots are provided on the pressure plate. Arc-shaped spring plates are fixedly connected to the inner walls of the four slots, and multiple plates are fixedly connected to the outer walls of the four arc-shaped spring plates.
[0009] Preferably, the anti-sinking component includes a cylinder, which is fixedly connected to a connecting frame. The cylinder has four square slots, and the connecting frame has four sliding grooves. Sliding blocks are slidably connected to the four sliding grooves. Anti-sinking plates are fixedly connected to the top surfaces of the four sliding blocks. Adapter plates are fixedly connected to the top surfaces of the four anti-sinking plates. Round-headed plates are fixedly connected to one side of the four adapter plates. The four adapter plates pass through the square slots.
[0010] Preferably, a connecting plate is fixedly connected to the top surface of the cylinder, a bolt is threadedly connected to the connecting plate, a handle is fixedly connected to the top surface of the bolt, and a circular head is fixedly connected to the bottom surface of the bolt.
[0011] Preferably, the bottom surface of the micropile is fixedly connected to an inclined head, and the micropile is provided with a threaded groove.
[0012] Preferably, the connecting plate has threaded holes.
[0013] Compared with the prior art, the beneficial effects of this utility model are: Under the action of the load-bearing component and the anti-settlement component, this utility model increases the contact area between the pile and the soil significantly by having multiple load-bearing grooves in the load-bearing cylinder of the load-bearing component contact with the surrounding soil, thus significantly improving the friction between the two. It can fully mobilize the soil around the pile to participate in the load-bearing, changing the situation in the traditional device where the pile bears the load alone. Especially in sandy soil foundations, it effectively improves the problem of weak adhesion between the pile and the sandy soil and reduces the risk of settlement caused by pile overload. Multiple clamps on the arc-shaped elastic plate make close contact with the soil after the micropile stops moving, forming an effective anti-settlement barrier. The anti-settlement component increases the contact area with the soil by unfolding the anti-settlement plate, further preventing the micropile from sinking to the bottom. These two effects work together to significantly improve the anti-settlement effect of the device under various foundation conditions. In particular, in soft soil foundations, it can effectively deal with the problem of high compressibility of the soil between piles and reduce the situation where the settlement of the soil between piles causes the pile to sink. The cooperation between the fixing plate and the connecting frame plays a role in fixing the micropile, ensuring the stability of the pile body during the stress process. The arc-shaped spring plate enters the slot when it is squeezed and resets after stopping movement. This does not affect the implantation of the pile body, but also provides a stable fixing force in the later stage, preventing the pile body from loosening or being pulled out, thus enhancing the structural stability of the entire device. Attached Figure Description
[0014] Figure 1 This is a frontal perspective view of the present invention. Figure 2 This is a three-dimensional structural diagram of the back of the present invention; Figure 3 This is a schematic diagram of the exploded three-dimensional structure of this utility model; Figure 4 This is a schematic diagram of the fixing plate structure of this utility model; Figure 5 This is a schematic diagram of the force-bearing cylinder structure of this utility model; Figure 6 This is a schematic diagram of the anti-sinking plate structure of this utility model; Figure 7 This is a schematic diagram of the cylindrical structure of this utility model; Figure 8 This is a schematic diagram of the circular head structure of this utility model.
[0015] In the diagram: 1. Connecting frame; 2. Fixing hole; 3. Micropile; 4. Fixing plate; 5. Force-bearing cylinder; 6. Force-bearing groove; 7. Pressure boosting plate; 8. Slot; 9. Arc-shaped spring plate; 10. Clamping plate; 11. Slide groove; 12. Cylinder; 13. Square groove; 14. Sliding block; 15. Anti-sinking plate; 16. Adapter plate; 17. Round head plate; 18. Connecting plate; 19. Bolt; 20. Handle; 21. Round head. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Example 1: Please refer to Figures 1-8 The diagram shows a low-vibration anti-settlement micropile group reinforcement device, which includes a connecting frame 1 and further includes: a force-bearing component, which is disposed on the connecting frame 1 and is used to enhance the friction between the micropile group and the surrounding soil; and an anti-settlement component, which is disposed on the connecting frame 1 and is used to prevent the micropile group from settling. The load-bearing component includes a fixing hole 2, which is opened on the connecting frame 1. A micro pile 3 is provided on the connecting frame 1. A fixing plate 4 is threadedly connected to the outer wall of the micro pile 3. The fixing plate 4 is above the connecting frame 1. The micro pile 3 passes through the fixing hole 2. A load-bearing cylinder 5 is fixedly connected to the outer wall of the micro pile 3. Multiple load-bearing grooves 6 are opened on the load-bearing cylinder 5.
[0018] During the process of micropile 3 being implanted into the foundation, when the force-bearing cylinder 5 enters the soil along with the micropile 3, the multiple force-bearing grooves 6 opened on the force-bearing cylinder 5 come into full contact with the surrounding soil. These force-bearing grooves 6 increase the contact area between the force-bearing cylinder 5 and the soil, thereby generating a large number of force-bearing points, significantly strengthening the friction between the micropile 3 and the surrounding soil, improving the force-bearing effect of the entire device, and enabling the pile to more effectively mobilize the soil around the pile to participate in the force-bearing.
[0019] Please see Figure 5 The bottom surface of the force-bearing cylinder 5 in the figure is fixedly connected to a pressure plate 7. The pressure plate 7 has four slots 8. The inner walls of the four slots 8 are fixedly connected to arc-shaped spring plates 9. The outer walls of the four arc-shaped spring plates 9 are fixedly connected to multiple plates 10.
[0020] The pressure plate 7 on the bottom of the force-bearing cylinder 5 enters the soil along with the micropile 3. When the arc-shaped elastic plate 9 moves into the soil, it will be squeezed into the slot 8 by the soil. When the micropile 3 stops moving, the arc-shaped elastic plate 9 resets under its own elasticity. The multiple slot plates 10 fixedly connected to its outer wall are in close contact with the soil, which further increases the friction with the soil. This not only prevents settlement, but also strengthens the fixation when the micropile 3 may be pulled out, thus enhancing the stability of the pile.
[0021] Example 2: Please refer to 8. This embodiment further describes Example 1. The anti-sinking component in the figure includes a cylinder 12, which is fixedly connected to the connecting frame 1. The cylinder 12 has four square grooves 13. The connecting frame 1 has four sliding grooves 11. Sliding blocks 14 are slidably connected to the four sliding grooves 11. Anti-sinking plates 15 are fixedly connected to the top surface of the four sliding blocks 14. Adapter plates 16 are fixedly connected to the top surface of the four anti-sinking plates 15. Round head plates 17 are fixedly connected to one side of the four adapter plates 16. The four adapter plates 16 pass through the square grooves 13. A connecting plate 18 is fixedly connected to the top surface of the cylinder 12. A bolt 19 is threadedly connected to the connecting plate 18. A handle 20 is fixedly connected to the top surface of the bolt 19. A round head 21 is fixedly connected to the bottom surface of the bolt 19. A beveled head is fixedly connected to the bottom surface of the micro pile 3. A threaded groove is opened on the micro pile 3. A threaded hole is opened on the connecting plate 18.
[0022] By rotating the handle 20, the bolt 19 is rotated. Since the bolt 19 is threadedly connected to the connecting plate 18, the bolt 19 will move downward, which in turn will drive the circular head 21 to move downward. During the downward movement of the circular head 21, it will squeeze the circular head plate 17 on the four adapter plates 16, causing the adapter plates 16 to move outward along the square groove 13 on the cylinder 12. This will drive the anti-sinking plate 15 to slide on the sliding groove 11 of the connecting frame 1 through the slider 14, so that the four anti-sinking plates 15 unfold outward. After unfolding, the anti-sinking plate 15 will have a large contact area with the surrounding soil, increasing the stress area between the device and the foundation, effectively preventing the micropile 3 from sinking, and further improving the anti-settlement capability of the device.
[0023] Working principle: During the process of micropile 3 being implanted into the foundation, when the force-bearing cylinder 5 enters the soil along with the micropile 3, the multiple force-bearing grooves 6 opened on the force-bearing cylinder 5 come into full contact with the surrounding soil. These force-bearing grooves 6 increase the contact area between the force-bearing cylinder 5 and the soil, thereby generating a large number of force-bearing points, significantly strengthening the friction between the micropile 3 and the surrounding soil, improving the force-bearing effect of the entire device, and enabling the pile to more effectively mobilize the soil around the pile to participate in the force-bearing process. At the same time, the pressure plate 7 on the bottom of the force-bearing cylinder 5 enters the soil along with the micro pile 3. When the arc-shaped spring plate 9 moves into the soil, it will be squeezed by the soil and enter the slot 8. When the micro pile 3 stops moving, the arc-shaped spring plate 9 resets under its own elasticity. The multiple slot plates 10 fixedly connected to its outer wall are in close contact with the soil, which further increases the friction with the soil. This not only prevents settlement, but also strengthens the fixation when the micro pile 3 may be pulled out, thus enhancing the stability of the pile. By rotating the handle 20, the bolt 19 is rotated. Since the bolt 19 is threadedly connected to the connecting plate 18, the bolt 19 will move downward, which in turn will drive the circular head 21 to move downward. During the downward movement of the circular head 21, it will squeeze the circular head plate 17 on the four adapter plates 16, causing the adapter plates 16 to move outward along the square groove 13 on the cylinder 12. This will drive the anti-sinking plate 15 to slide on the sliding groove 11 of the connecting frame 1 through the slider 14, so that the four anti-sinking plates 15 unfold outward. After unfolding, the anti-sinking plate 15 will have a large contact area with the surrounding soil, increasing the stress area between the device and the foundation, effectively preventing the micropile 3 from sinking, and further improving the anti-settlement capability of the device.
[0024] By having multiple stress grooves 6 in the stress-bearing cylinder 5 of the stress-bearing component contact with the surrounding soil, the contact area between the pile and the soil is greatly increased, and the friction between the two is significantly improved. This allows the soil around the pile to be fully mobilized to participate in the stress, changing the situation where the pile bears the load alone in the traditional device. Especially in sandy soil foundations, it effectively improves the problem of weak adhesion between the pile and the sand, and reduces the risk of settlement caused by pile overload. After the micropile 3 stops moving, the multiple clamping plates 10 on the arc-shaped spring plate 9 come into close contact with the soil, forming an effective anti-settlement barrier. The anti-settlement component increases the contact area with the soil by unfolding the anti-settlement plate 15, further preventing the micropile 3 from sinking to the bottom. These two effects work together to significantly improve the anti-settlement effect of the device under various foundation conditions. In particular, in soft soil foundations, it can effectively deal with the problem of high compressibility of the soil between piles and reduce the situation where the pile body sinks due to the settlement of the soil between piles. The cooperation between the fixing plate 4 and the connecting frame 1 plays a role in fixing the micropile 3, ensuring the stability of the pile body during the stress process. When the arc-shaped spring plate 9 is squeezed, it enters the slot 8 and resets after stopping movement. This does not affect the implantation of the pile body, but can also provide a stable fixing force in the later stage to prevent the pile body from loosening or being pulled out, thus enhancing the structural stability of the entire device. The anti-sinking plate 15 can be unfolded and retracted by turning the handle 20. The operation is simple and convenient, allowing construction personnel to operate quickly on site. It can adapt to different construction environments and can play a good reinforcement role in narrow spaces or complex geological conditions, making it widely applicable.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A low-vibration anti-settlement micropile group reinforcement device, comprising: Connection frame (1); Its characteristic is that it further includes: The load-bearing component is set on the connecting frame (1) to enhance the friction between the micropile group and the surrounding soil; Anti-settlement components are installed on the connecting frame (1) to prevent settlement of the micropiles; The force-bearing component includes a fixing hole (2), which is opened on the connecting frame (1). A micro pile (3) is provided on the connecting frame (1). A fixing plate (4) is threadedly connected to the outer wall of the micro pile (3). The fixing plate (4) is above the connecting frame (1). The micro pile (3) passes through the fixing hole (2). A force-bearing cylinder (5) is fixedly connected to the outer wall of the micro pile (3). Multiple force-bearing grooves (6) are opened on the force-bearing cylinder (5).
2. The low-vibration anti-settlement micropile group reinforcement device according to claim 1, characterized in that: The bottom surface of the force-bearing cylinder (5) is fixedly connected to a pressure plate (7), and four slots (8) are provided on the pressure plate (7). The inner walls of the four slots (8) are fixedly connected to arc-shaped spring plates (9), and the outer walls of the four arc-shaped spring plates (9) are fixedly connected to multiple plates (10).
3. The low-vibration anti-settlement micro-pile group reinforcement device according to claim 1, characterized in that: The anti-sinking component includes a cylinder (12), which is fixedly connected to the connecting frame (1). The cylinder (12) has four square grooves (13) and the connecting frame (1) has four sliding grooves (11). Sliding blocks (14) are slidably connected to the four sliding grooves (11). Anti-sinking plates (15) are fixedly connected to the top surfaces of the four sliding blocks (14). Adapter plates (16) are fixedly connected to the top surfaces of the four anti-sinking plates (15). Round head plates (17) are fixedly connected to one side of the four adapter plates (16). The four adapter plates (16) penetrate the square grooves (13).
4. The low-vibration anti-settlement micropile group reinforcement device according to claim 3, characterized in that: A connecting plate (18) is fixedly connected to the top surface of the cylinder (12), and a bolt (19) is threaded onto the connecting plate (18). A handle (20) is fixedly connected to the top surface of the bolt (19), and a round head (21) is fixedly connected to the bottom surface of the bolt (19).
5. The low-vibration anti-settlement micropile group reinforcement device according to claim 1, characterized in that: The bottom surface of the micropile (3) is fixedly connected with a beveled head, and the micropile (3) is provided with a threaded groove.
6. The low-vibration anti-settlement micropile group reinforcement device according to claim 4, characterized in that: The connecting plate (18) has a threaded hole.