Square pile splicing auxiliary tool and pile splicing method

Abstract

The invention relates to a square pile splicing auxiliary tool. The square pile splicing auxiliary tool structurally comprises four corner plates vertically arranged at the four corners, a lower batten, an upper batten, a fine adjustment mechanism and a fixing mechanism, wherein the lower batten and the upper batten are arranged between every two adjacent corner plates, the fine adjustment mechanism is arranged on the upper batten, and the fixing mechanism is arranged on the lower batten. The fixing mechanism is used for being fixed to a pile head of a lower pile, and the fine adjustment mechanism is used for adjusting the position of the lower end of the upper pile and fixing the upper pile and the lower pile after the upper pile and the lower pile are aligned. The perpendicularity of the upper pile and the lower pile can be accurately adjusted, and the problems that in a traditional method, manual adjustment wastes time and labor, and precision is not high are solved. The fine adjustment mechanism enables the adjustment process to be more visual and easy to operate, and therefore the precision and efficiency of pile splicing are remarkably improved. The upper pile and the lower pile can be firmly fixed, and displacement or inclination in the pile splicing process is prevented. The stable fixing mode is beneficial for ensuring the accuracy and safety of pile splicing, and the quality problem caused by unstable pile splicing is reduced.

Description

Technical Field

[0001] The invention relates to a pile connection tool, in particular to a square pile connection auxiliary tool and a pile connection method. Background Art

[0002] In the construction process of pile foundation in building projects, prestressed prefabricated square piles are widely used due to their good bearing capacity and convenient construction. Such square piles are usually driven into the ground by a pile driver to form a stable pile foundation. In the construction process of pile foundation, it is often necessary to connect the piles, that is, connect multiple square piles in sequence to achieve the required pile length and bearing capacity.

[0003] The traditional method of connecting square piles mainly relies on manual operation. Specifically, the construction workers will use a pile driver to lift the square piles to be connected, and then place their connecting faces on the connecting faces of the square piles that have been driven into the ground. In order to ensure that the two square piles can be tightly connected, the construction workers usually need to use tools such as crowbars and ropes to adjust the connecting size.

[0004] Manually adjusting the docking dimensions is not only time-consuming and laborious, but also difficult to ensure accuracy. Since the docking surfaces of square piles need to be aligned very precisely to ensure the stability and bearing capacity of the pile foundation, even a slight deviation in the docking dimensions may lead to quality problems for the entire pile foundation. Traditional docking methods lack effective fixing devices and are prone to displacement or tilting during the docking process. This not only increases the difficulty and risk of construction, but may also have an adverse effect on the safety and stability of the pile foundation. Summary of the invention

[0005] The purpose of the present invention is to provide a square pile connection auxiliary tool and a pile connection method to solve the problems of time-consuming and labor-intensive adjustment of the verticality of upper and lower piles and lack of fixation when the existing pile connection tools are used for pile connection.

[0006] The present invention is implemented as follows: a square pile connection auxiliary tool, whose structure includes four corner plates vertically arranged at the four corners, a lower strip plate and an upper strip plate each arranged between two adjacent corner plates, a fine-adjustment mechanism arranged on the upper strip plate, and a fixing mechanism arranged on the lower strip plate; the fixing mechanism is used to be fixed on the pile head of the lower pile, and the fine-adjustment mechanism is used to adjust the position of the lower end of the upper pile, and the upper pile is aligned with the lower pile and then fixed.

[0007] Furthermore, the fixing mechanism includes a fixing nut fixedly arranged on the outer side of the lower strip, a fixing bolt passed through the fixing nut and the lower strip, a fixed U-shaped plate passed through the fixing bolt, a fixed limit block fixedly connected to the inner end of the fixing bolt, and a fixed vertical plate connected to the fixed U-shaped plate.

[0008] Furthermore, the fixed U-shaped plate is located on the fixing bolt section on the inner side of the lower strip.

[0009] Furthermore, a through hole for the fixing bolt to pass through is opened at the bottom of the fixing U-shaped plate, and the open end of the fixing U-shaped plate is fixedly connected to the fixing vertical plate.

[0010] Furthermore, the size of the fixed limiting block is larger than the size of the through hole of the fixed U-shaped plate.

[0011] Furthermore, the fine-tuning mechanism includes a fine-tuning nut fixedly arranged on the outer side of the upper strip, a fine-tuning bolt passed through the fine-tuning nut and the upper strip, a fine-tuning U-shaped plate passed through the fine-tuning bolt, a fine-tuning limit block fixedly connected to the inner end of the fine-tuning bolt, and a fine-tuning vertical plate connected to the fine-tuning U-shaped plate.

[0012] Furthermore, the lower strip and the upper strip are connected to the angle plate by bolts.

[0013] Furthermore, there are two lower strips disposed between two adjacent angle panels.

[0014] A method for connecting piles using the square pile connecting auxiliary tool as claimed in any one of claims 1 to 8, comprising the following steps: S1. Fixing the lower part of the square pile connection auxiliary tool to the upper end of the lower pile, specifically, sleeve the lower part of the square pile connection auxiliary tool on the upper end of the lower pile whose lower part has been driven into the ground, and rotate the fixing bolts of the lower part of the square pile connection auxiliary tool so that the four fixing vertical plates of the lower part are all pressed against the four sides of the lower pile; S2, hoisting the lower end of the upper pile into the upper part of the square pile connection auxiliary tool, specifically using a pile driver to hoist the upper pile, and vertically inserting the lower end of the upper pile into the square pile connection auxiliary tool from above until the lower end surface of the upper pile is close to the upper end surface of the lower pile; S3, fine-tuning the upper pile through the fine-tuning mechanism on the upper part of the square pile connection auxiliary tool, specifically adjusting the fine-tuning bolt on the upper part, pushing the upper pile through the corresponding fine-tuning vertical plate, so that the verticality of the upper pile and the lower pile are aligned; after the verticality of the upper pile and the lower pile are aligned, tighten all the fine-tuning bolts of the upper fine-tuning mechanism to fix the upper pile and the lower pile; S4, welding the lower end of the upper pile and the fitting part of the lower pile, and after welding, loosen all the fixing bolts and fine-tuning bolts of the fixing mechanism and the fine-tuning mechanism; S5, using a pile driver to drive most of the upper pile into the ground, leaving a pile head for connecting the piles, at which point the upper pile becomes a new lower pile; S6. Repeat steps S1 to S5 until the pile reaches the designed elevation, and then remove the square pile connection auxiliary tool.

[0015] The present invention can accurately adjust the verticality of the upper pile and the lower pile, solving the problem of time-consuming and labor-intensive manual adjustment and low precision in the traditional method. The fine-tuning mechanism makes the adjustment process more intuitive and easy to operate, thereby significantly improving the precision and efficiency of pile connection.

[0016] The present invention can firmly fix the upper pile and the lower pile to prevent displacement or tilting during the pile connection process. This stable fixing method helps to ensure the accuracy and safety of the pile connection and reduce quality problems caused by unstable pile connection.

[0017] The invention has reasonable design, compact structure and is easy to install and disassemble, so that workers can quickly master the use method and improve work efficiency.

[0018] The present invention is applicable to the connection of square piles of different specifications and sizes, and only the relevant parameters of the fixing mechanism and the fine-tuning mechanism need to be adjusted according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 yes Figure 1 Bottom view of .

[0021] Figure 3 yes Figure 1 Top view of the .

[0022] Figure 4 It is a schematic diagram of the structure of fixing the present invention on a lower pile.

[0023] Figure 5 It is a structural schematic diagram of placing the lower end of the upper pile into the upper part of the invention.

[0024] Figure 6 It is a schematic diagram of the structure of aligning the upper pile with the lower pile by using the present invention.

[0025] In the figure: 1, lower pile, 2, upper pile, 3, angle plate, 4, lower strip plate, 5, upper strip plate, 6, fixing mechanism, 7, fine-tuning mechanism, 61, fixing nut, 62, fixing bolt, 63, fixing U-shaped plate, 64, fixing limit block, 65, fixing vertical plate, 71, fine-tuning nut, 72, fine-tuning bolt, 73, fine-tuning U-shaped plate, 74, fine-tuning limit block, 75, fine-tuning vertical plate. DETAILED DESCRIPTION

[0026] like Figure 1As shown, the present invention as a whole is a square frame which is longer and wider than a square pile, and includes four corner plates 3 arranged at four corners, an upper strip plate 5 and a lower strip plate 4 are arranged between two adjacent corner plates 3, a fine adjustment mechanism 7 arranged on the upper strip plate 5, and a fixing mechanism 6 arranged on the lower strip plate 4. The fixing mechanism 6 is used to fix the square pile connection tool on the pile head of the lower pile 1, and the fine adjustment mechanism 7 is used to adjust the position of the lower end of the upper pile 2, and the upper pile 2 is aligned with the lower pile 1 and then fixed.

[0027] The four angle plates 3 are all arranged vertically, and the inner corners of the angle plates 3 face the outer corners of the square piles. The upper strips 5 and the lower strips 4 are arranged horizontally on the four sides of the present invention, front, back, left, and right. No strips are arranged on the upper and lower sides to facilitate the passage of the square piles. The upper strips 5 and the lower strips 4 on each side are arranged at intervals, and the intervals are convenient for observing whether the upper pile 2 is aligned with the lower pile 1, and for welding the butt surfaces of the upper pile 2 and the lower pile 1 through the gap.

[0028] The inner side of the upper strip 5 and the inner side of the lower strip 4 at the upper end of each side are connected to one outer side of the two angle plates 3. The upper strips 5 and the lower strips 4 on the four sides have the same height to more evenly bear the forces in all directions, thereby avoiding stress concentration and deformation problems caused by height differences.

[0029] The connection between the lower strip 4 and the upper strip 5 and the angle plate 3 can be welded or detachably connected, or at least one side is detachably connected, such as bolted (not shown). When welded, the square pile connection auxiliary tool is not removed after the pile connection is completed, and the upper end of the upper pile 2 is removed after the pile connection is completed. When the connection is detachably connected, the lower strip 4 and the upper strip 5 on one side can be removed after the pile connection is completed, and then the square pile connection auxiliary tool can be removed. In this embodiment, the lower strip 4 and the upper strip 5 are both angle plates, and the lower strip 4 and the upper strip 5 can also be square tubes, etc.

[0030] like Figure 2As shown, the fixing mechanism 6 has the same structure as the fine-tuning mechanism 7, and the fixing mechanism 6 includes a fixing nut 61 fixedly arranged on the outer side of the lower strip 4, a fixing bolt 62 penetrating the fixing nut 61 and the lower strip 4, a fixing U-shaped plate 63 penetrating the fixing bolt 62, a fixing stopper 64 fixedly connected to the inner end of the fixing bolt 62, and a fixing vertical plate 65 connected to the fixing U-shaped plate 63. The fixing U-shaped plate 63 is located on the fixing bolt 62 section on the inner side of the lower strip 4, a hole for the fixing bolt 62 to pass through is opened at the bottom of the fixing U-shaped plate 63, the fixing bolt 62 passes through the bottom of the fixing U-shaped plate 63, the open end of the fixing U-shaped plate 63 is fixedly connected to one side of the fixing vertical plate 65, the size of the fixing stopper 64 is larger than the size of the through hole of the fixing U-shaped plate 63, so as to prevent the fixing stopper 64 from falling off from the fixing U-shaped plate, and the bottom of the fixing U-shaped plate 63 and the fixing vertical plate 65 restrict the fixing stopper 64 in the fixing U-shaped plate 63. The fixing vertical plate 65 is arranged vertically and parallel to one side of the square pile. The bolt head of the fixing bolt 62 is on the outside of the lower strip 4 so that the position of the fixing vertical plate 65 can be adjusted by the bolt head. The fixing nut 61 is arranged in the middle of the lower strip 4.

[0031] like Figure 3 As shown, the fine-tuning mechanism 7 includes a fine-tuning nut 71 fixedly arranged on the outer side of the upper strip 5, a fine-tuning bolt 72 passing through the fine-tuning nut 71 and the upper strip 5, a fine-tuning U-shaped plate 73 passing through the fine-tuning bolt 72, a fine-tuning stopper 74 fixedly connected to the inner end of the fine-tuning bolt 72, and a fine-tuning vertical plate 75 connected to the fine-tuning U-shaped plate 73. In this embodiment, the fixed stopper 64 and the fine-tuning stopper 74 are nuts welded to the inner ends of the corresponding bolts.

[0032] There are two lower strips 4 and two fixing mechanisms 6 on each side of the square pile connection auxiliary tool, so as to better fix the square pile connection auxiliary tool on the lower pile 1.

[0033] The method for connecting piles using the square pile connecting auxiliary tool includes the following steps: S1, fix the lower part of the square pile connection auxiliary tool to the upper end of the lower pile 1, such as Figure 4 As shown, the lower part of the square pile connection auxiliary tool is put on the upper end of the lower pile 1 whose lower part has been driven into the ground, and then the fixing bolt 62 of the lower part of the square pile connection auxiliary tool is rotated by using the tool so that the four fixing vertical plates 65 of the lower part are all pressed against the four sides of the lower pile 1; S2, hoist the lower end of the upper pile 2 into the upper part of the square pile connection auxiliary tool, such as Figure 5 As shown, the upper pile 2 is hoisted by a pile driver, and the lower end of the upper pile 2 is vertically inserted into the square pile connection auxiliary tool from above until the lower end surface of the upper pile 2 is in close contact with the upper end surface of the lower pile 1; at this time, the upper pile 2 is not aligned with the lower pile 1 in terms of verticality; S3, fine-tune the upper pile 2 through the fine-tune mechanism 7 on the upper part of the square pile connection auxiliary tool, such as Figure 6 As shown, adjust the upper fine-tuning bolt 72, and push the upper pile 2 through the corresponding fine-tuning vertical plate 72 to align the upper pile 2 with the lower pile 1 in verticality; after the upper pile 2 is aligned with the lower pile 1 in verticality, tighten all the fine-tuning bolts 72 of the upper fine-tuning mechanism 7 to fix the upper pile 2 and the lower pile 1; S4, weld the lower end of the upper pile 2 to the fitting part of the lower pile 2, and after welding, loosen all the fine-adjusting bolts 62 and fine-adjusting bolts 72 of the fixing mechanism 6 and the fine-adjusting mechanism 7; place a baffle on the ground near the lower pile to prevent the square pile connection auxiliary tool from being driven into the ground during piling, or when the lower strip 4 and the upper strip 5 are detachably connected to the angle plate 3, remove the lower strip 4 and the upper strip 5 on one side to remove the square pile connection tool from the upper pile 2; S5, using a pile driver to drive most of the upper pile 2 into the ground, leaving a pile head for connecting the piles, at this time, the upper pile 2 becomes the lower pile 1; S6, repeat steps S1-S5 until the pile is driven to the designed elevation, and remove the square pile connection auxiliary tool. If the lower strip 4 and the upper strip 5 are welded to the upper end of the angle plate 3, remove them from the upper end of the square pile; if the lower strip 4 and the upper strip 5 are connected by bolts, remove them after removing one side of the lower strip 4 and the upper strip 5.

Claims

1. A square pile connection auxiliary tool, characterized in that: It includes four corner plates vertically arranged at the four corners, a lower strip plate and an upper strip plate arranged between two adjacent corner plates, a fine-adjustment mechanism arranged on the upper strip plate, and a fixing mechanism arranged on the lower strip plate; the fixing mechanism is used to be fixed on the pile head of the lower pile, and the fine-adjustment mechanism is used to adjust the position of the lower end of the upper pile, and the upper pile is aligned with the lower pile and then fixed.

2. The square pile connection auxiliary tool according to claim 1, characterized in that: The fixing mechanism includes a fixing nut fixedly arranged on the outer side of the lower strip, a fixing bolt passing through the fixing nut and the lower strip, a fixing U-shaped plate passing through the fixing bolt, a fixing limit block fixedly connected to the inner end of the fixing bolt, and a fixing vertical plate connected to the fixing U-shaped plate.

3. The square pile connection auxiliary tool according to claim 2, characterized in that: The fixed U-shaped plate is located on the fixing bolt section on the inner side of the lower strip.

4. The square pile connection auxiliary tool according to claim 3, characterized in that: A through hole for the fixing bolt to pass through is provided at the bottom of the fixing U-shaped plate, and an open end of the fixing U-shaped plate is fixedly connected to the fixing vertical plate.

5. The square pile connection auxiliary tool according to claim 4, characterized in that: The size of the fixed limiting block is larger than the size of the through hole of the fixed U-shaped plate.

6. The square pile connection auxiliary tool according to claim 1, characterized in that: The fine-tuning mechanism includes a fine-tuning nut fixedly arranged on the outer side of the upper strip, a fine-tuning bolt passing through the fine-tuning nut and the upper strip, a fine-tuning U-shaped plate passing through the fine-tuning bolt, a fine-tuning limit block fixedly connected to the inner end of the fine-tuning bolt, and a fine-tuning vertical plate connected to the fine-tuning U-shaped plate.

7. The square pile connection auxiliary tool according to claim 1, characterized in that: The lower strip plate and the upper strip plate are connected to the angle plate by bolts.

8. The square pile connection auxiliary tool according to claim 1, characterized in that: There are two lower strips disposed between two adjacent angle plates.

9. A method for connecting piles using the square pile connecting auxiliary tool as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Fixing the lower part of the square pile connection auxiliary tool to the upper end of the lower pile, specifically, sleeve the lower part of the square pile connection auxiliary tool on the upper end of the lower pile whose lower part has been driven into the ground, and rotate the fixing bolts of the lower part of the square pile connection auxiliary tool so that the four fixing vertical plates of the lower part are all pressed against the four sides of the lower pile; S2, hoisting the lower end of the upper pile into the upper part of the square pile connection auxiliary tool, specifically using a pile driver to hoist the upper pile, and vertically inserting the lower end of the upper pile into the square pile connection auxiliary tool from above until the lower end surface of the upper pile is close to the upper end surface of the lower pile; S3, fine-tuning the upper pile through the fine-tuning mechanism on the upper part of the square pile connection auxiliary tool, specifically adjusting the fine-tuning bolt on the upper part, pushing the upper pile through the corresponding fine-tuning vertical plate, so that the verticality of the upper pile and the lower pile are aligned; after the verticality of the upper pile and the lower pile are aligned, tighten all the fine-tuning bolts of the upper fine-tuning mechanism to fix the upper pile and the lower pile; S4, welding the lower end of the upper pile and the fitting part of the lower pile, and after welding, loosen all the fixing bolts and fine-tuning bolts of the fixing mechanism and the fine-tuning mechanism; S5, using a pile driver to drive most of the upper pile into the ground, leaving a pile head for connecting the piles, at which point the upper pile becomes a new lower pile; S6. Repeat steps S1 to S5 until the pile reaches the designed elevation, and then remove the square pile connection auxiliary tool.

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