Grouting spiral composite pile

Abstract

The utility model discloses a grouting spiral composite pile, relates to the technical field of grouting piles, and aims to solve the technical problem that the follow-up grouting quality is affected due to the fact that an outer hole position of a current grouting pile is easy to block in the ground breaking process, the grouting spiral composite pile comprises a composite pile cylinder, a pile head is arranged at the bottom of the composite pile cylinder, and a base plate is fixed at the bottom end in the composite pile cylinder. Cushion blocks are distributed on the outer side of the upper end face of the base plate in an annular array mode, a top plate is arranged at the top end of the interior of the composite pile barrel, grouting openings are formed in the outer side of the top plate in an annular array mode, a butt joint block is rotationally installed at the upper end of the top plate, side holes are formed in the outer side of the composite pile barrel in an annular array mode, and spiral blades are distributed on the outer side of the composite pile barrel at equal intervals. The grouting device has the advantages that the grouting hole position shielding mechanism is arranged, the hole position is prevented from being blocked by soil in the soil breaking process, and the subsequent grouting quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting piles, and more specifically to a grouting spiral composite pile. Background Art

[0002] Grouting piles are a type of reinforcement method that involves injecting cement paste or other grouting materials into the pile hole during driving to form the pile body. They primarily consist of the pile body, plugs, grouting pipes, rebar, and cement. The location, number, and diameter of the grouting pipes and grouting holes require specific design to ensure the desired properties and effectiveness of the grouting pile.

[0003] The spiral blades on the outside of the grouting pile effectively enhance penetration and compact the soil around the pile hole, increasing the lateral friction of the soil around the pile. They possess strong bearing capacity, pullout resistance, and lateral resistance, while exhibiting minimal deformation and excellent stability. Existing grouting holes can easily allow soil to enter the pile during the groundbreaking process. If the soil is too compact, this can easily block the slurry flow path within the pile, affecting grouting quality. In light of this, we propose a grouting spiral composite pile. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a grouting spiral composite pile to solve the technical problem that the outer hole of the current grouting pile is easily blocked during the groundbreaking process, affecting the subsequent grouting quality.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a grouting spiral composite pile, comprising a composite pile barrel, a pile head is provided at the bottom of the composite pile barrel, a chassis is fixed at the inner bottom end of the composite pile barrel, and pads are distributed in a circular array on the outer side of the upper end surface of the chassis, a top plate is provided at the inner top end of the composite pile barrel, and a grouting port is provided in a circular array on the outer side of the top plate, a docking block is rotatably installed on the upper end of the top plate, side holes are provided in a circular array on the outer side of the composite pile barrel, and spiral blades are distributed equidistantly on the outer side of the composite pile barrel.

[0006] When the utility model is used, the pile driving device of the device is connected to the docking block at the upper end of the composite pile barrel, and then the driving shaft is connected to the driving port, the driving shaft is started to drive the docking block to rotate, and the docking block drives the internal inner rotator to rotate, and the cross surface of the inner rotator squeezes the side pressure surface corresponding to the pad block, and the inner rotator squeezes the pad block to drive the composite pile barrel to rotate, and then cooperates with the downward pressure of the pile driving device to make the composite pile barrel cooperate with the pile head to break the soil into the soil, and at the same time, the spiral blade spirally enters the soil to compact the soil. During the ground-breaking process of this device, the grouting port is blocked by the outer side of the cross structure of the inner rotator, so as to prevent soil from entering the grouting port and the composite pile barrel when breaking the soil. Inside, the grouting passage is blocked to ensure the quality of subsequent grouting. When the groundbreaking is completed, the docking block is rotated in the opposite direction. At this time, the side groove of the docking block is docked with the grouting port of the top plate, and the top passage is opened. At the same time, the docking block drives the inner rotating body to rotate through the rotating shaft. The pressing surface of the inner rotating body turns from the side pressure surface of the pad to fit the other side of the pad. At this time, the side is separated from the side hole. At this time, the side passage is opened, and the grouting passage is fully opened. Grouting is carried out on the inside of the composite pile barrel through the grouting port, and the slurry is dispersed outward into the soil through the side holes. After solidification, the connection between the composite pile barrel of this device and the underground soil is realized, and the connection is strengthened and stable.

[0007] Preferably, the spiral blades and the side holes are staggered and distributed, and a soil collecting opening is provided in an annular array on the outer side of the pile head.

[0008] Preferably, an inner rotating body is rotatably mounted inside the composite pile barrel via a rotating shaft, and the lower end of the rotating shaft is rotatably connected to the pile head.

[0009] Preferably, the cross section of the inner rotating body is cross-shaped, and the cross-shaped side edges of the inner rotating body fit the inner end openings of the side holes.

[0010] Preferably, the side of the cushion block is provided with a side pressure surface, and the cross side surface of the inner rotating body is in contact with the side pressure surface.

[0011] Preferably, the side gap of the docking block is adapted to the grouting port, the upper end of the rotating shaft is connected to the docking block, and a driving port is provided in the middle of the upper end surface of the docking block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model designs an inner rotator. The piling device of the device is connected to the docking block at the upper end of the composite pile barrel, and then the driving shaft is connected to the driving port. The driving shaft is started to drive the docking block to rotate, and the docking block drives the internal inner rotator to rotate. The cross surface of the inner rotator squeezes the side pressure surface corresponding to the pad block. The inner rotator squeezes the pad block to drive the composite pile barrel to rotate, and then cooperates with the downward pressure of the piling device to make the composite pile barrel cooperate with the pile head to break the ground into the soil. At the same time, the spiral blade spirally enters the soil to compact the soil. During the ground-breaking process of this device, the grouting port is blocked by the outer side of the cross structure of the inner rotator to prevent soil from entering the grouting port and the interior of the composite pile barrel when breaking the ground, blocking the grouting passage, and ensuring the quality of subsequent grouting.

[0014] 2. The utility model also designs a pad. When the ground is broken, the docking block is rotated in the opposite direction. At this time, the side notch of the docking block docks with the grouting port of the top plate, and the top passage is opened. At the same time, the docking block drives the inner rotating body to rotate through the rotating shaft. The pressing surface of the inner rotating body turns from the side pressure surface of the pad to fit the other side of the pad. At this time, the side is separated from the side hole. At this time, the side passage is opened, the grouting passage is fully opened, and the inside of the composite pile barrel is grouting through the grouting port. The slurry is dispersed outward into the soil through the side hole. After solidification, the connection between the composite pile barrel of this device and the underground soil is realized, and the connection is strengthened and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a composite pile barrel of the present utility model;

[0017] Figure 3 This is a schematic diagram of a composite pile barrel of the present utility model;

[0018] Figure 4 This is a schematic diagram of the inner rotating structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the connection structure of the present utility model.

[0020] Explanation of the numbers in the figure: 1. Spiral blade; 2. Composite pile tube; 201. Side hole; 202. Chassis; 203. Pad; 204. Top plate; 205. Grouting port; 206. Side pressure surface; 3. Pile head; 301. Soil collection port; 4. Docking block; 401. Adjustment port; 402. Drive port; 5. Inner swivel; 501. Rotation axis. DETAILED DESCRIPTION

[0021] like Figures 1 to 4As shown, the utility model relates to a grouting spiral composite pile, comprising a composite pile tube 2, a pile head 3 is provided at the bottom of the composite pile tube 2, a chassis 202 is fixed to the bottom end of the composite pile tube 2, and pads 203 are distributed in an annular array on the outer side of the upper end surface of the chassis 202, a top plate 204 is provided at the top end of the composite pile tube 2, and a grouting port 205 is opened in an annular array on the outer side of the top plate 204, a docking block 4 is rotatably installed on the upper end of the top plate 204, an inner rotating body 5 is rotatably installed inside the composite pile tube 2 through a rotating shaft 501, and the rotating shaft 5 The lower end of 01 is rotatably connected to the pile head 3, and the cross section of the inner rotating body 5 is cross-shaped, and the cross side of the inner rotating body 5 fits the inner end opening of the side hole 201, and the side of the pad 203 is provided with a side pressure surface 206. The cross side surface of the inner rotating body 5 fits the side pressure surface 206. When the inner rotating body 5 rotates normally, the inner rotating body 5 squeezes the pad 203 and synchronously drives the composite pile barrel 2 to rotate to realize the ground breaking operation. However, when the inner rotating body 5 rotates in the opposite direction, the inner rotating body 5 and the side hole 201 and the grouting port 205 are staggered, and the grouting passage is opened.

[0022] like Figures 2 to 5 As shown, the utility model relates to a grouting spiral composite pile, comprising a composite pile tube 2, an outer annular array of the composite pile tube 2 is provided with side holes 201, spiral leaves 1 are equidistantly distributed on the outer side of the composite pile tube 2, the spiral leaves 1 and the side holes 201 are staggered, and a soil receiving port 301 is provided on the outer annular array of the pile head 3 to prevent the spiral leaves 1 from affecting the grouting circulation of the side holes 201, the side gap of the docking block 4 is adapted to the grouting port 205, the upper end of the rotating shaft 501 is connected to the docking block 4, and a driving port 402 is provided in the middle of the upper end surface of the docking block 4, and the driving shaft of the external piling device is connected to the driving port 402 to complete the adaptation of the driving mechanism.

[0023] Working principle: This embodiment provides a grouting spiral composite pile. When in use, the piling device of this device is connected to the docking block 4 at the upper end of the composite pile barrel 2, and then the driving shaft is connected to the driving port 402. The driving shaft is started to drive the docking block 4 to rotate, and the docking block 4 drives the internal inner rotating body 5 to rotate. The cross surface of the inner rotating body 5 squeezes the side pressure surface 206 corresponding to the pad 203. The inner rotating body 5 squeezes the pad 203 to drive the composite pile barrel 2 to rotate, and then cooperates with the downward pressure of the piling device to make the composite pile barrel 2 cooperate with the pile head 3 to break the soil into the soil. At the same time, the spiral blade 1 spirally enters the soil to compact the soil. During the ground-breaking process of this device, the grouting port 205 is blocked by the outer side of the cross structure of the inner rotating body 5 to avoid soil damage during ground-breaking. The soil enters the grouting port 205 and the interior of the composite pile tube 2. When the soil is broken, the docking block 4 is rotated in the opposite direction. At this time, the side notch of the docking block 4 docks with the grouting port 205 of the top plate 204, and the top passage is opened. At the same time, the docking block 4 drives the inner rotating body 5 to rotate through the rotating shaft 501. The pressing surface of the inner rotating body 5 turns from the side pressure surface 206 of the cushion block 203 to fit the other side of the cushion block 203. At this time, the side is separated from the side hole 201. At this time, the side passage is opened, and the grouting passage is completely opened. Grouting is carried out on the inside of the composite pile tube 2 through the grouting port 205, and the slurry is dispersed outward into the soil through the side hole 201. After solidification, the connection between the composite pile tube 2 of this device and the underground soil is realized, and the connection is strengthened and stable.

[0024] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A grouting spiral composite pile, comprising a composite pile barrel (2), characterized in that: The bottom of the composite pile tube (2) is provided with a pile head (3), the bottom end of the interior of the composite pile tube (2) is fixed with a chassis (202), and pads (203) are distributed in an annular array on the outer side of the upper end surface of the chassis (202), the top end of the interior of the composite pile tube (2) is provided with a top plate (204), and a grouting port (205) is provided in an annular array on the outer side of the top plate (204), a docking block (4) is rotatably mounted on the upper end of the top plate (204), a side hole (201) is provided in an annular array on the outer side of the composite pile tube (2), and spiral leaves (1) are distributed equidistantly on the outer side of the composite pile tube (2).

2. The grouting spiral composite pile according to claim 1, characterized in that: The spiral blades (1) and the side holes (201) are staggered and distributed, and a soil receiving opening (301) is provided in an annular array on the outer side of the pile head (3).

3. The grouting spiral composite pile according to claim 2, characterized in that: An inner rotating body (5) is rotatably mounted inside the composite pile tube (2) via a rotating shaft (501), and the lower end of the rotating shaft (501) is rotatably connected to the pile head (3).

4. The grouting spiral composite pile according to claim 3, characterized in that: The cross section of the inner rotating body (5) is designed to be cross-shaped, and the cross-shaped side edges of the inner rotating body (5) fit the inner end opening of the side hole (201).

5. The grouting spiral composite pile according to claim 4, characterized in that: The side edge of the cushion block (203) is provided with a side pressure surface (206), and the cross side surface of the inner rotating body (5) is in contact with the side pressure surface (206).

6. The grouting spiral composite pile according to claim 5, characterized in that: The side gap of the docking block (4) is adapted to the grouting port (205), the upper end of the rotating shaft (501) is connected to the docking block (4), and a driving port (402) is provided in the middle of the upper end surface of the docking block (4).

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