Multifunctional pile driver and method for driving row of inclined piles

Abstract

The application discloses a multifunctional pile machine and a piling construction method for row inclined piles, relates to the technical field of pile foundation construction, and comprises two parallel and spaced fixed rails, a center base is arranged between the two fixed rails, and the center base is connected with the two fixed rails respectively; the fixed rail comprises a plurality of rotatable mounting units, a plurality of hydraulic units are arranged on the center base, and the plurality of mounting units and the plurality of hydraulic units are arranged in one-to-one correspondence; a linkage assembly for driving the hydraulic unit and the mounting unit to synchronously rotate is further arranged between each hydraulic unit and the mounting unit matched with the hydraulic unit. The application has the effect of improving the construction efficiency of inclined piles.

Description

Technical Field

[0001] This application relates to the technical field of pile foundation construction, and in particular to a multi-functional pile driver and a method for driving inclined piles in rows. Background Technology

[0002] Piling machines include two types: those that use impact force to drive piles into the ground and those that use augers to drill pile holes and then drive the piles into the foundation. Piling machines are usually composed of a pile hammer, a pile frame, and auxiliary equipment.

[0003] Inclined piles are piles that are driven into the ground at an angle to the vertical. With the rise of spatial structures, their roofs are mostly arched, such as airport waiting halls, train station buildings, stadiums, and other buildings. Irregular roofs can generate horizontal thrust on the supports. In addition, when subjected to wind loads, the supports will generate uplift forces. Vertical piles alone cannot directly offset large horizontal and uplift loads, while inclined piles can withstand greater axial forces than vertical piles under the same load.

[0004] Currently, most pile drivers on the market can only drive one pile at a time. For projects with many piles around the foundation pit, the construction efficiency is low. In addition, the driving angle of the inclined pile can be easily changed during the movement and angle adjustment of the pile driver, resulting in poor construction effect of the inclined pile. Summary of the Invention

[0005] To improve the problem of low construction efficiency of inclined piles, this application provides a multi-functional pile driver and a method for driving inclined piles in rows.

[0006] Firstly, this application provides a multi-functional pile driver, which adopts the following technical solution:

[0007] A multi-functional pile driver includes two parallel and spaced fixed rails, with a central base between the two fixed rails, and the central base is connected to the two fixed rails respectively.

[0008] The fixed track includes multiple rotatable mounting units, and multiple hydraulic units are provided on the central base. The multiple mounting units and the multiple hydraulic units are arranged in a one-to-one correspondence.

[0009] Each hydraulic unit is also equipped with a linkage component between itself and its matching mounting unit for driving the hydraulic unit and the mounting unit to rotate synchronously.

[0010] By adopting the above technical solution, a central base is set and fixed tracks are set on both sides of the central base, so that the pile driver itself can maintain balance and stability during the pile driving process using the pile driver of this application.

[0011] Setting up multiple installation units and multiple hydraulic units on a fixed track enables the simultaneous construction of multiple pile foundations using the piling machine of this application, thereby improving construction efficiency;

[0012] Both the installation unit and the hydraulic unit can rotate, and the two can rotate synchronously through the linkage component, thereby enabling the pile driver of this application to have the function of inclined pile construction, and the pile driver of this application can ensure that the inclination angle of three adjacent inclined piles is the same.

[0013] Optionally, the hydraulic unit includes a unit base rotatably connected to the central base, a lifting slide rail is vertically fixed on the unit base, and a hydraulic component is slidably disposed on the lifting slide rail, the hydraulic component being able to slide along the lifting slide rail.

[0014] By adopting the above technical solution, the angle of the entire hydraulic unit can be adjusted by setting the unit base to meet the requirements of driving inclined piles, so that the movement axis of the hydraulic unit can be kept in the same straight line as the axis of the pile foundation; the hydraulic component is slidably set on the lifting slide rail, and after the pile foundation is installed to the installation unit, the hydraulic component can slide to the top of the pile foundation and drive the pile foundation into the stratum by pressing down the top of the pile foundation.

[0015] Optionally, the installation unit includes a main body, with both ends of the main body rotatably connected to a fixed track, and a limiting hole for placing the pile foundation is provided through the middle of the main body.

[0016] By adopting the above technical solution, the pile foundation is placed in the limiting hole before pile driving. The main body can limit the pile foundation, so that the pile foundation can maintain a vertical state during the pile driving process and is not easy to collapse.

[0017] Optionally, a receiving groove is provided on the opposite side wall of the limiting hole, and a clamping block for clamping the pile foundation is slidably arranged in the receiving groove, and a driving component for driving the clamping block to move towards or away from each other.

[0018] By adopting the above technical solution, when adjusting the angle of the installation unit, the pile foundation can rotate together with the main body, so that the tilt angle of the pile foundation is the same as the tilt angle of the installation unit. This makes it easier to accurately control the tilt of the inclined pile to meet the design requirements. After the pile foundation angle is adjusted, the clamping action of the clamping block on the pile foundation is released, and the pile foundation can be driven into the ground using the hydraulic unit.

[0019] Optionally, a rotating rod for driving the main body to rotate is provided in the fixed track. The rotating rod is arranged along the length direction of the fixed track. The linkage component is connected to the rotating rod, and the linkage component can drive the rotating rod to rotate forward or backward.

[0020] By adopting the above technical solution, the rotation of the rotating rod can drive all the installation units on the fixed track to rotate synchronously, and the rotation of the installation unit is kept consistent with the rotation of multiple hydraulic units through the linkage component, so as to finally realize the adjustment of the inclined pile penetration angle.

[0021] Optionally, the hydraulic assembly includes a base and a hydraulic device, the base including two parallel and spaced mounting plates, and the hydraulic device being detachably mounted on the mounting plates.

[0022] By adopting the above technical solution, the hydraulic equipment can be installed more stably on the lifting slide rail, and the hydraulic equipment can be disassembled, which facilitates the maintenance and replacement of the hydraulic equipment.

[0023] Optionally, the two mounting plates are coaxially provided with gear-shaped mounting holes, and the hydraulic device is provided with a connecting hole that has the same shape as the mounting holes. A locking member is inserted between the connecting hole and the mounting hole, and the cross-section of the locking member has the same shape as the mounting hole.

[0024] By adopting the above technical solution, the locking component can be inserted into both the mounting hole and the connection hole to achieve a fixed connection between the hydraulic equipment and the mounting plate. The hydraulic equipment can be disassembled by pulling the locking component out of the mounting hole and the connection hole, which is convenient and quick to use.

[0025] Optionally, the linkage component includes a drive source for driving the unit base to rotate, and an external gear disk is fixed to one end of the unit base;

[0026] A driven gear disk is fixed to one end of the rotating rod that extends out of the fixed track, and a transmission gear disk meshes between the driven gear disk and the external gear disk.

[0027] By adopting the above technical solution, the base of the drive unit rotates, thereby driving the external gear disk to rotate synchronously. The external gear disk, the transmission gear disk, and the driven gear disk mesh in sequence, so that the rotation of the external gear disk can drive the driven gear disk to rotate synchronously, thereby realizing the synchronous rotation of the installation unit and the hydraulic unit.

[0028] Optionally, the hydraulic unit further includes a mounting base detachably mounted on the end of the hydraulic equipment; the multi-functional piling machine also includes an auger drill, one end of which can be detachably connected to the end of the mounting base away from the hydraulic equipment.

[0029] By adopting the above technical solution, for geological environments where hydraulic units are not suitable for pile driving construction, the hydraulic units can be disassembled and replaced with auger drills, and drilling can be carried out by auger drills to achieve pile foundation construction.

[0030] Secondly, this application provides a method for driving inclined piles in rows, using the multi-functional pile driver described above, and employing the following technical solution:

[0031] A method for driving inclined piles in a row includes the following steps:

[0032] S1. Determine the construction boundary of the pile foundation based on the boundary of the foundation pit;

[0033] S2. Install the multi-functional pile driver of this application around the perimeter of the pile foundation construction boundary;

[0034] S3. Select either a spiral drill or hydraulic equipment based on the soil conditions;

[0035] S4. Use a crane to lift the pile foundation into the limiting hole;

[0036] S5. Adjust the angle of the installation unit and the unit base according to the design drawings;

[0037] S6. Multiple hydraulic units are used to simultaneously construct multiple pile foundations.

[0038] By adopting the above technical solutions, multiple pile foundations can be constructed simultaneously during the construction of parallel inclined piles, thereby improving construction efficiency; the inclination angles of the multiple pile foundations constructed simultaneously are consistent, thus improving construction accuracy; and by using a multi-functional pile driver and the above construction scheme, the pile forming method can be adjusted according to geological conditions, thereby adapting to pile foundation construction under different working conditions.

[0039] In summary, this application includes at least one of the following beneficial effects:

[0040] 1. The multi-functional pile driver of this application facilitates the adjustment of the pile driving inclination, making the pile angle positioning more accurate and better meeting design requirements;

[0041] 2. The multi-functional pile driver of this application can realize the simultaneous construction of multiple pile foundations, and when multiple pile foundations are constructed simultaneously, the inclination angle of the multiple pile foundations is consistent, which can improve the construction efficiency when driving a row of inclined piles into the stratum.

[0042] 3. The multi-functional pile driver of this application can change the pile driving method, selecting hydraulic pile foundation to be driven into the stratum, or using a spiral drill to drive the pile foundation into the stratum, so as to meet the pile foundation construction needs under different geological conditions. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the multi-functional pile driver according to an embodiment of this application;

[0044] Figure 2 This is a partial cross-sectional schematic diagram of the fixed track according to an embodiment of this application;

[0045] Figure 3 This is a schematic diagram of the layout structure of the hydraulic unit in an embodiment of this application;

[0046] Figure 4 This is an exploded structural diagram of the hydraulic equipment in an embodiment of this application.

[0047] Explanation of reference numerals in the attached drawings: 1. Central base; 11. Control room; 12. Crane; 13. Track; 2. Fixed rail; 21. Installation unit; 211. Main body; 2111. Limiting hole; 2112. Receiving groove; 212. Clamping block; 213. Driving component; 22. Rotating rod; 3. Hydraulic unit; 31. Unit base; 32. Lifting slide rail; 33. Hydraulic component; 331. Base; 332. Hydraulic equipment; 3321. Connecting hole; 333. Mounting plate; 3331. Mounting hole; 34. Locking component; 35. Mounting seat; 4. Linkage component; 41. External gear disk; 42. Driven gear disk; 43. Transmission gear disk; 5. Auger. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0049] This application discloses a multi-functional pile driver, referring to... Figure 1 A multi-functional pile driver includes two rows of parallel fixed tracks 2, with a central base 1 positioned between the two rows of tracks 2. The central base 1 is fixedly connected to both rows of tracks 2, and a track 13 is installed below the central base 1, enabling the multi-functional pile driver to move. An operator's control room 11 and a crane 12 are located above the central base 1. The crane 12 on the central base 1 increases the self-weight of the multi-functional pile driver, thus ensuring its stability during pile driving. It also enables the multi-functional pile driver to perform pile foundation hoisting, reducing the number of machines required to enter the construction site during pile foundation construction.

[0050] Reference Figure 1 and Figure 2 Each row of fixed rails 2 includes multiple rotatable mounting units 21, which are spaced apart, preferably three mounting units 21. A rotating rod 22 is provided along the length of the fixed rail 2, and the rotating rod 22 is fixedly connected to the multiple mounting units 21. Each mounting unit 21 includes a main body 211, with opposite side walls rotatably connected to the fixed rail 2. A limiting hole 2111 is formed through the main body 211 from top to bottom. The rotating rod 22 is fixedly connected to the main body 211 but disconnected within it. A receiving groove 2112 is also provided on the opposite side wall of the limiting hole 2111. A clamping block 212 is slidably disposed within the receiving groove 2112, and a driving component 213 for driving the clamping block 212 to move towards or away from each other is provided. The driving component 213 can specifically be a hydraulic push rod. The limiting hole 2111 is provided for inserting the pile foundation, and the clamping block 212 is provided for clamping and fixing the pile foundation.

[0051] Reference Figure 1 and Figure 3 Multiple hydraulic units 3 are mounted on the central base 1, each corresponding to one above the mounting unit 21. Each hydraulic unit 3 includes a unit base 31 rotatably connected to the central base 1. A lifting slide rail 32 is vertically fixed to the unit base 31. The structure of the lifting slide rail 32 is common in commercially available pile drivers, and its structure will not be discussed in detail here. A hydraulic component 33 is mounted on the lifting slide rail 32. The hydraulic component 33 is used to press the pile foundation into the ground while simultaneously sliding along the lifting slide rail 32.

[0052] Reference Figure 3 and Figure 4 The hydraulic assembly 33 includes a base 331 and a hydraulic device 332. The hydraulic device 332 is a relatively mature product on the market and will not be described in detail here. The base 331 includes two parallel and spaced mounting plates 333. The part of the hydraulic device 332 used for fixed connection with the mounting plates 333 is installed between the two mounting plates 333. The two mounting plates 333 have coaxial mounting holes 3331, and the hydraulic device 332 has a through hole 3321. When the hydraulic device 332 is installed between the two mounting plates 333, the through hole 3321 is coaxial with the mounting hole 3331. The mounting hole 3331 and the through hole 3321 have the same shape and are both gear-shaped. Locking elements 34 are inserted into both the mounting hole 3331 and the through hole 3321 to achieve a detachable connection between the hydraulic device 332 and the base 331.

[0053] Reference Figure 4 The locking member 34 is a rod-shaped structure, with an enlarged head fixed at one end and a threaded section at the other end. The cross-section of the portion of the locking member 34 that inserts into the mounting plate 333 and the hydraulic device 332 has the same shape as the mounting hole 3331. The locking member 34 enables a detachable connection between the hydraulic device 332 and the base 331. Multiple locking members 34 can be provided to enhance the installation stability between the hydraulic device 332 and the base 331. The accompanying drawings of this application only show the case of providing one locking member 34.

[0054] Reference Figure 1 and Figure 3Each set of hydraulic units 3 and mounting units 21 is equipped with a linkage assembly 4. The linkage assembly 4 includes a drive source for rotating the unit base 31. The operator can control the start and stop of the drive source in the control room 11, and control the angle and direction of rotation of the unit base 31 driven by the drive source. The linkage assembly 4 also includes an external gear disk 41 fixed to one end of the unit base 31, and a driven gear disk 42 fixed to one end of the rotating rod 22 extending from the fixed track 2. The plane of the external gear disk 41 is parallel to the plane of the driven gear disk 42, and a transmission gear disk 43 is provided between the external gear disk 41 and the driven gear disk 42. The transmission gear disk 43 meshes with both the external gear disk 41 and the driven gear disk 42, and the transmission gear disk 43 is fixed on the central base 1. The linkage assembly 4 is equipped with a housing to reduce the damage of the linkage assembly 4 to environmental factors. The housing is not shown in the figure.

[0055] Reference Figure 4 Since the geological conditions of different engineering projects vary, for geological environments where hydraulic pile driving is not applicable, the hydraulic equipment 332 of the multi-functional pile driver of this application is detachably equipped with a self-rotating mounting base 35 on the end face of the pile foundation end, and the mounting base 35 can be equipped with a spiral drill 5 for pile foundation drilling.

[0056] The implementation principle of a multi-functional pile driver in this application embodiment is as follows: When using the multi-functional pile driver of this application for pile foundation construction, firstly, the crane 12 is used to hoist multiple pile foundations one by one into multiple limiting holes 2111 of the fixed rail 2 on one side, and the driving component 213 drives the clamping block 212 to clamp and fix the pile foundation to achieve temporary fixation of the pile foundation. At this time, the hydraulic device 332 slides along the lifting slide rail 32 to the top of the pile foundation and abuts against the top of the pile foundation.

[0057] After multiple piles are hoisted into place, if the piles are driven vertically into the ground, the operator can release the clamping block 212 from the piles and operate the hydraulic equipment 332 to press the piles downwards into the ground. If the piles are inclined piles, the drive source is controlled to drive multiple unit bases 31 to rotate synchronously. When the unit bases 31 rotate, they drive the lifting slide rail 32 and the hydraulic equipment 332 to rotate. At the same time, the installation unit 21 rotates synchronously with the hydraulic unit 3 under the drive of the linkage component 4. After the hydraulic unit 3 rotates to the designed inclination angle of the inclined pile, the clamping block 212 is released from the piles, and the multiple hydraulic equipment 332 is driven to press the piles down, thereby driving the piles into the ground.

[0058] For geological environments unsuitable for driving pile foundations into the soil, the mounting base 35 can be installed on the hydraulic equipment 332, and the auger drill 5 can be installed on the mounting base 35. The hydraulic equipment 332 drives the auger drill 5 to drill into the soil. The rotation of the mounting base 35 drives the auger drill 5 to rotate, thus achieving the drilling of the pile foundation and enabling pile foundation construction.

[0059] This multi-functional pile driver can construct both vertical and inclined piles; it can also construct multiple piles simultaneously, improving construction efficiency; it can be used for both spiral and hydraulic pile forming, meeting the pile forming requirements of different geological conditions and has a wide range of applications.

[0060] This application also discloses a method for driving inclined piles in a row using the above-described device, the method comprising the following steps:

[0061] S1. Determine the construction boundary of the pile foundation based on the boundary of the foundation pit;

[0062] S2. Install the multi-functional pile driver of this application around the perimeter of the pile foundation construction boundary;

[0063] S3. Choose whether to install an auger based on soil conditions;

[0064] S4. Use crane 12 to hoist the pile foundation into the limiting hole 2111;

[0065] S5. Adjust the angles of the installation unit 21 and the unit base 31 according to the design drawings;

[0066] S6. Multiple hydraulic units 3 are used to carry out pile construction of multiple pile foundations simultaneously.

[0067] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-functional pile driver, characterized in that: It includes two parallel and spaced fixed tracks (2), and a central base (1) is provided between the two fixed tracks (2). The central base (1) is connected to the two fixed tracks (2) respectively. The fixed track (2) includes multiple rotatable mounting units (21), and multiple hydraulic units (3) are provided on the central base (1). The multiple mounting units (21) and the multiple hydraulic units (3) are arranged in a one-to-one correspondence. The installation unit (21) includes a main body (211), the two ends of which are rotatably connected to the fixed track (2), and a limiting hole (2111) for placing the pile foundation is provided through the middle of the main body (211). Each hydraulic unit (3) is also provided with a linkage component (4) between its matching mounting unit (21) and a linkage component (4) for driving the hydraulic unit (3) and the mounting unit (21) to rotate synchronously. The hydraulic unit (3) includes a unit base (31) rotatably connected to the central base (1), a lifting slide rail (32) is vertically fixed on the unit base (31), and a hydraulic component (33) is slidably arranged on the lifting slide rail (32). The hydraulic component (33) can slide along the lifting slide rail (32). The fixed track (2) is provided with a rotating rod (22) for driving the main body (211) to rotate. The rotating rod (22) is arranged along the length direction of the fixed track (2). The linkage component (4) is connected to the rotating rod (22), and the linkage component (4) can drive the rotating rod (22) to rotate forward or backward. The linkage component (4) includes a drive source for driving the unit base (31) to rotate, and an external gear disk (41) is fixed at one end of the unit base (31). The end of the rotating rod (22) extending out of the fixed track (2) is fixed with a passive gear disk (42), and a transmission gear disk (43) meshes between the passive gear disk (42) and the external gear disk (41).

2. The multi-functional pile driver according to claim 1, characterized in that: The limiting hole (2111) has a receiving groove (2112) on the opposite side wall. A clamping block (212) for clamping the pile foundation is slidably arranged in the receiving groove (2112), and a driving member (213) for driving the clamping block (212) to move towards or away from each other.

3. The multi-functional pile driver according to claim 1, characterized in that: The hydraulic assembly (33) includes a base (331) and a hydraulic device (332). The base (331) includes two parallel and spaced mounting plates (333). The hydraulic device (332) is detachably mounted on the mounting plates (333).

4. A multi-functional pile driver according to claim 3, characterized in that: The two mounting plates (333) are coaxially provided with gear-shaped mounting holes (3331). The hydraulic device (332) is provided with a connecting hole (3321) that is the same shape as the mounting hole (3331). A locking member (34) is inserted between the connecting hole (3321) and the mounting hole (3331). The cross-section of the locking member (34) is the same shape as the mounting hole (3331).

5. A multi-functional pile driver according to claim 3, characterized in that: The hydraulic unit (3) also includes a mounting base (35) that can be detachably installed at the end of the hydraulic equipment (332); the multi-functional pile driver also includes a spiral drill (5), one end of which can be detachably connected to the end of the mounting base (35) away from the hydraulic equipment (332).

6. A method for driving inclined piles in rows, utilizing the multi-functional pile driver as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Determine the construction boundary of the pile foundation based on the boundary of the foundation pit; S2. Install multi-functional pile drivers around the perimeter of the pile foundation construction boundary; S3. Choose whether to install a spiral drill based on the soil conditions (5); S4. Use a crane (12) to hoist the pile foundation into the limiting hole (2111); S5. Adjust the angles of the installation unit (21) and the unit base (31) according to the design drawings; S6. Multiple hydraulic units (3) are used to carry out pile construction of multiple pile foundations simultaneously.

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