Differential settlement adjusting device for rigid pile composite foundation

Abstract

The utility model relates to a rigid pile composite foundation differential settlement adjusting device, which belongs to the technical field of rigid piles and comprises a rigid pile body, a pile top is arranged on the upper side of the rigid pile body, and a fixing box is fixed on the upper surface of the rigid pile body. An adjusting mechanism used for adjusting the rigidity of the rigid pile body is arranged at the bottom between the opposite sides of the left side wall and the right side wall of an inner cavity of the fixing box, and a limiting mechanism used for limiting is arranged at the bottom of the right side of the fixing box. According to the differential settlement adjusting device for the rigid pile composite foundation, a plurality of settlement monitoring points are arranged on the surface of the foundation and can be used for monitoring the settlement condition of the foundation in real time, workers can conveniently check the settlement condition in real time, and the settlement monitoring points are matched with all structures of the adjusting mechanism, so that the height of the pile top can be changed, and the stress condition of the rigid pile body is changed; the rigidity of the rigid pile body can be adjusted, and accurate monitoring and flexible adjustment of differential settlement of the rigid pile composite foundation are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rigid piles, in particular to a differential settlement adjusting device for a rigid pile composite foundation. Background Technique

[0002] The rigid pile composite foundation is a type of foundation between pile foundations and natural foundations. It has the characteristics of strong ability to bear uneven loads, small differential settlement, fast construction speed, and good economic benefits. This foundation treatment technology forms an artificial foundation composed of a matrix (natural foundation soil or improved natural foundation soil) and a reinforcement by setting reinforcement materials or reinforcement bodies in the natural foundation.

[0003] The rigid pile composite foundation is widely used in engineering. However, due to factors such as geological conditions and uneven load distribution, differential settlement of the foundation often occurs. Existing foundation treatment methods have limitations in solving the problem of differential settlement and cannot meet the requirements of foundation stability under complex geological conditions and variable loads. Therefore, a device capable of effectively adjusting the differential settlement of the rigid pile composite foundation is proposed to solve the above problems. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a differential settlement adjusting device for a rigid pile composite foundation, which has the advantages of accurate monitoring and flexible adjustment of the differential settlement of the rigid pile composite foundation, and solves the problems that due to factors such as geological conditions and uneven load distribution, differential settlement of the foundation often occurs, and existing foundation treatment methods have limitations in solving the problem of differential settlement and cannot meet the requirements of foundation stability under complex geological conditions and variable loads.

[0005] To achieve the above object, the utility model provides the following technical solution: A differential settlement adjusting device for a rigid pile composite foundation, including a rigid pile body, a pile top is arranged on the upper side of the rigid pile body, a fixed box is fixed on the upper surface of the rigid pile body, an adjusting mechanism for adjusting the stiffness of the rigid pile body is arranged at the bottom between the opposite sides of the left and right inner side walls of the fixed box cavity, and a limiting mechanism for limiting is arranged at the bottom on the right side of the fixed box;

[0006] The adjusting mechanism includes a shaft rod, two driving bevel gears, two driven bevel gears, two driving rods, two rotating rods, two moving rods and two limiting rings. The shaft rod is rotatably connected between the opposite sides of the left and right inner side walls of the fixed box cavity through a bearing. The driving bevel gear is fixed on the outer surface of the shaft rod. The rotating rod is rotatably connected to the inner top wall of the fixed box through a bearing. The driving rod is fixed at the center of the lower surface of the rotating rod. The driven bevel gear is fixed at the bottom of the driving rod. The driving bevel gear is meshed with the driven bevel gear. The moving rod is threadedly connected to the inner cavity of the rotating rod. The limiting ring is fixed on the outer surface of the moving rod.

[0007] By adopting this technical solution, through the mutual cooperation among the various structures of the adjusting mechanism, the height of the pile top can be changed, the stress condition of the rigid pile body can be altered, and the stiffness of the rigid pile body can be adjusted.

[0008] Furthermore, the fixed box is in the shape of a cylinder with a hollow interior and a partially missing upper surface, and reinforcing ribs are fixed at the corners of the fixed box.

[0009] By adopting this technical solution, the provided reinforcing ribs can be used to enhance the strength of the fixed box.

[0010] Furthermore, the right side of the shaft rod penetrates through the right side wall of the inner cavity of the fixed box and extends to the right side of the fixed box and is fixed with a handle, and the two driving bevel gears are symmetrically distributed on the left and right sides of the vertical central axis of the shaft rod.

[0011] By adopting this technical solution, the provided handle can facilitate the staff to drive the shaft rod to rotate.

[0012] Furthermore, the two rotating rods are symmetrically distributed on the left and right sides of the vertical central axis of the fixed box, the upper surface of the moving rod penetrates through the rotating rod and extends to the upper side of the fixed box and is fixed to the lower surface of the pile top.

[0013] By adopting this technical solution, the height of the pile top can be adjusted by adjusting the height of the moving rod, so that the stress condition of the rigid pile body is changed, and the stiffness of the rigid pile body can be adjusted.

[0014] Furthermore, through holes are formed at both the left and right ends of the upper surface of the fixed box, and the inner diameter of the through holes is adapted to the outer diameter of the moving rod.

[0015] By adopting this technical solution, the provided through holes can facilitate the movement of the moving rod, thereby facilitating the adjustment of the height of the pile top.

[0016] Furthermore, telescopic rods are fixed at both the left and right ends between the limiting ring and the opposite side of the fixed box, and the telescopic rods are composed of a mounting rod and an inner rod that are nested with each other.

[0017] By adopting this technical solution, the provided telescopic rods and the limiting ring can limit the movement of the moving rod, enabling it to only perform linear motion, thereby enabling the pile top to rise stably.

[0018] Furthermore, the limiting mechanism includes a limiting frame and a limiting screw rod. The limiting frame is fixed at the bottom on the right side of the fixed box, the limiting screw rod is in threaded connection with the limiting frame, and a plurality of screw holes are formed on the outer surface of the shaft rod.

[0019] Furthermore, the cross-sectional shape of the limiting frame is an inverted U shape, and the limiting screw rod is threadedly connected to the screw hole.

[0020] By adopting this technical solution, the adjusted shaft rod can be limited to prevent it from being rotated by mistake.

[0021] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0022] 1. For this differential settlement adjustment device of rigid pile composite foundation, multiple settlement monitoring points are arranged on the foundation surface, which can be used to monitor the settlement of the foundation in real time, facilitating the staff to view in real time. And through the mutual cooperation among the various structures of the adjustment mechanism, the height of the pile top can be changed, so that the stress condition of the rigid pile body is changed, and the stiffness of the rigid pile body can be adjusted, realizing the precise monitoring and flexible adjustment of the differential settlement of the rigid pile composite foundation.

[0023] 2. For this differential settlement adjustment device of rigid pile composite foundation, the arranged limiting mechanism enables the lower end of the limiting screw rod to move closer to the shaft rod, and then the limiting screw rod enters the screw hole on the outer surface of the corresponding shaft rod, so as to limit the position of the shaft rod and prevent it from being rotated by mistake, improving the stability after adjusting the shaft rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the adjustment mechanism of the present utility model;

[0026] Figure 3 is a schematic external structural diagram of the fixed box of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the limiting mechanism of the present utility model.

[0028] In the figure: 1, rigid pile body; 2, pile top; 3, fixed box; 4, adjustment mechanism; 41, shaft rod; 42, driving bevel gear; 43, driven bevel gear; 44, driving rod; 45, rotating rod; 46, moving rod; 47, limiting ring; 5, limiting mechanism; 51, limiting frame; 52, limiting screw rod; 53, screw hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figure 1 Figure 1

[0031] In this embodiment, the fixing box 3 is in the shape of a cylinder with a hollow interior and a partially missing upper surface, and reinforcing ribs are fixed at the corners of the fixing box 3.

[0032] It should be noted that the utility model is equipped with a settlement monitoring system. The settlement monitoring system includes a plurality of settlement monitoring points. By setting a plurality of settlement monitoring points on the foundation surface, it can be used to monitor the settlement of the foundation in real time, which is convenient for the staff to view in real time, and in mutual cooperation with each structure of the adjusting mechanism 4, it realizes the precise monitoring and flexible adjustment of the differential settlement of the rigid pile composite foundation.

[0033] Please refer to Figures 2 to 3 Figures 2 to 3

[0034] In this embodiment, the right side of the shaft rod 41 penetrates through the right side wall of the inner cavity of the fixed box 3 and extends to the right side of the fixed box 3, and a handle is fixed thereon. The set handle can facilitate the staff to drive the shaft rod 41 to rotate. The two driving bevel gears 42 are symmetrically distributed on the left and right sides of the vertical central axis of the shaft rod 41. The two rotating rods 45 are symmetrically distributed on the left and right sides of the vertical central axis of the fixed box 3. The upper surface of the moving rod 46 penetrates through the rotating rod 45 and extends to the upper side of the fixed box 3 and is fixed to the lower surface of the pile top 2.

[0035] Wherein, through holes are formed at both the left and right ends of the upper surface of the fixed box 3. The inner diameter of the through hole is adapted to the outer diameter of the moving rod 46. Telescopic rods are fixed at both the left and right ends between the limiting ring 47 and the opposite side of the fixed box 3. The telescopic rods are an installation rod and an inner rod connected in a nested manner. The set telescopic rods and the limiting ring 47 can limit the movement of the moving rod 46, enabling it to only perform linear motion. When the limiting ring 47 moves, it is limited by the two telescopic rods, so that the moving rod 46 can only perform linear motion.

[0036] It should be noted that the movement of the moving rod 46 drives the pile top 2 to move, so that the height of the pile top 2 can be adjusted. Further, the stiffness of the rigid pile body 1 can change accordingly, the stress condition of the rigid pile body 1 is changed, the stiffness of the rigid pile body 1 can be adjusted, the precise monitoring and flexible adjustment of the differential settlement of the rigid pile composite foundation are realized, the pile-soil interaction can be achieved, the differential settlement can be reduced, the internal force of the bearing platform can be reduced, the resource consumption can be saved, and the engineering economic benefit can be improved.

[0037] Please refer to Figure 4 , in order to limit the shaft rod 41, the limiting mechanism 5 in this embodiment includes a limiting frame 51 and a limiting screw 52. The limiting frame 51 is fixed at the bottom on the right side of the fixed box 3. The limiting screw 52 is threadedly connected with the limiting frame 51. The limiting screw 52 can be rotated to make the lower end of the limiting screw 52 move closer to the shaft rod 41. A plurality of screw holes 53 are formed on the outer surface of the shaft rod 41.

[0038] In this embodiment, the cross-sectional shape of the limiting frame 51 is an inverted U shape, and the limiting screw 52 is threadedly connected with the screw hole 53.

[0039] It should be noted that the limiting screw 52 is made to enter the screw hole 53 on the outer surface of the corresponding shaft rod 41, so that the position of the shaft rod 41 can be limited and its rotation can be avoided. The bottom of the limiting screw 52 extends out from the lower end of the limiting frame 51, and the shaft rod 41 can be stably limited.

[0040] The working principle of the above embodiment is:

[0041] (1)A plurality of settlement monitoring points are arranged on the foundation surface, which can be used to monitor the settlement of the foundation in real time. To adjust the stiffness of the rigid pile body 1, the rigid pile body 1 can be buried in the ground. Then, the rotation of the shaft rod 41 can be driven. The rotation of the shaft rod 41 causes the two driving bevel gears 42 fixed on its surface to rotate. The rotation of the two driving bevel gears 42 causes the two driven bevel gears 43 meshed with them to rotate. The rotation of the driven bevel gears 43 causes the driving rod 44 to rotate. The rotation of the driving rod 44 causes the rotating rod 45 fixed to it to rotate. The rotation of the rotating rod 45 can make the moving rod 46 threaded to it move upward. The movement of the moving rod 46 causes the limit ring 47 to move. The limit ring 47 is limited by two telescopic rods during movement, so that the moving rod 46 can only move linearly. The movement of the moving rod 46 drives the pile top 2 to move, so that the height of the pile top 2 can be adjusted, and further the stiffness of the rigid pile body 1 can change accordingly, enabling the adjustment of the stiffness of the rigid pile body 1, achieving precise monitoring and flexible adjustment of the differential settlement of the rigid pile composite foundation.

[0042] (2)To prevent the rotation of the shaft rod 41 after adjustment, the limit screw 52 can be rotated so that the lower end of the limit screw 52 moves closer to the shaft rod 41, and then the limit screw 52 enters the screw hole 53 on the outer surface of the corresponding shaft rod 41, thereby limiting the position of the shaft rod 41 and preventing its rotation. The bottom of the limit screw 52 can extend from the lower end of the limit frame 51 to stably limit the shaft rod 41.

Claims

1. A device for adjusting differential settlement of a rigid pile composite foundation, comprising a rigid pile body (1), characterized in that: The upper side of the rigid pile body (1) is provided with a pile top (2), a fixing box (3) is fixed on the upper surface of the rigid pile body (1), an adjusting mechanism (4) for adjusting the rigidity of the rigid pile body (1) is provided at the bottom between the opposite sides of the left and right side walls of the inner cavity of the fixing box (3), and a limiting mechanism (5) for limiting is provided at the bottom of the right side of the fixing box (3); The adjustment mechanism (4) comprises a shaft (41), two active bevel gears (42), two driven bevel gears (43), two driving rods (44), two rotating rods (45), two moving rods (46) and two limiting rings (47); the shaft (41) is rotatably connected to the bottom between the left and right side walls of the inner cavity of the fixed box (3) via a bearing; the active bevel gear (42) is fixed to the outer surface of the shaft (41); the rotating rod (45) is rotatably connected to the inner top wall of the fixed box (3) via a bearing; the driving rod (44) is fixed to the center of the lower surface of the rotating rod (45); the driven bevel gear (43) is fixed to the bottom of the driving rod (44); the active bevel gear (42) is meshedly connected to the driven bevel gear (43); the moving rod (46) is threadedly connected to the inner cavity of the rotating rod (45); and the limiting ring (47) is fixed to the outer surface of the moving rod (46).

2. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: The fixing box (3) is in the shape of a cylinder with a hollow interior and a partially missing upper surface, and reinforcing ribs are fixed at the corners of the fixing box (3).

3. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: The right side of the shaft rod (41) passes through the right side wall of the inner cavity of the fixed box (3) and extends to the right side of the fixed box (3) and is fixed with a handle. The two active bevel gears (42) are symmetrically distributed on the left and right sides of the vertical center axis of the shaft rod (41).

4. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: The two rotating rods (45) are symmetrically distributed on the left and right sides of the vertical center axis of the fixed box (3), and the upper surface of the movable rod (46) passes through the rotating rod (45) and extends to the upper side of the fixed box (3) and is fixed to the lower surface of the pile top (2).

5. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: Through holes are provided at both left and right ends of the upper surface of the fixed box (3), and the inner diameter of the through hole matches the outer diameter of the moving rod (46).

6. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: Telescopic rods are fixed to both left and right ends between the limiting ring (47) and the opposite side of the fixing box (3), and the telescopic rods are installation rods and inner rods that are nested and connected to each other.

7. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 1, characterized in that: The limiting mechanism (5) comprises a limiting frame (51) and a limiting screw (52); the limiting frame (51) is fixed to the bottom of the right side of the fixed box (3); the limiting screw (52) is threadedly connected to the limiting frame (51); and a plurality of screw holes (53) are formed on the outer surface of the shaft (41).

8. The device for adjusting differential settlement of a rigid pile composite foundation according to claim 7, characterized in that: The cross-sectional shape of the limiting frame (51) is an inverted U-shape, and the limiting screw rod (52) is threadedly connected to the screw hole (53).

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