Combined pile driving technology of steel pipe pile and steel sheet pile and combined pile driving device

Abstract

The present invention relates to a combined pile driving process of steel pipe piles and steel sheet piles and a combined pile driving device thereof, and belongs to the technical field of pile foundation construction. The combined pile driving process of steel pipe piles and steel sheet piles comprises the following steps: S1, assembling steel pipe piles and steel sheet piles to form a combination of steel pipe piles and steel sheet piles; S2, setting the sizes of the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp according to the size of the combination, and respectively installing the three hydraulic clamps on the slide rails of the vibrating hammer; S3, respectively clamping the first hydraulic clamp and the second hydraulic clamp on both sides of the top of the steel pipe pile, and clamping the third hydraulic clamp on the top of the steel sheet pile, so that the center of gravity of the vibrating hammer and the center of gravity of the combination are located on the same vertical line; S4, performing combined pile driving. The combined pile driving process can use the resistance of the steel sheet pile to prevent the steel pipe pile from rotating in the soil, thereby ensuring that the lock buckle of the steel sheet pile and the steel pipe pile are overlapped according to the designed position, avoiding deviation in the actual construction position.

Description

Technical Field

[0001] The invention belongs to the technical field of pile foundation construction, and specifically relates to a combined pile driving process of steel pipe piles and steel sheet piles and a combined pile driving device. Background Art

[0002] PC method piles are usually composed of Larsen steel sheet piles and steel pipes to form composite piles of various cross-sections, which are suitable for the support structure of foundation pit support projects. The water-stop locks of the steel pipe piles and Larsen steel sheet piles of the PC method piles need to overlap and bite each other. There are two types of pile sinking processes: static pressure and hammering. Both use vertical force to insert the steel pipe piles into the soil. During construction, the bite quality and straightness of the steel pipe piles and Larsen steel sheet piles are important control indicators. Poor control of any aspect will directly affect the closing of the PC method pile retaining structure. However, during pile sinking construction, sometimes the soil is dense and pile sinking is difficult, which can easily cause the steel pipe piles and steel sheet piles to tilt, affecting the straightness of the wall formed by the composite piles, or causing the steel pipe piles to rotate and affect the bite quality of the pile body; if forced construction is carried out, the lock at the bite of the pile body will be damaged.

[0003] In the prior art, Chinese invention patent CN113944152B provides a combined pile construction method of steel pipe piles and steel sheet piles, which can form mud liquid into soil through high-pressure water jets, reduce the difficulty of pile sinking, and control the straightness of subsequent steel sheet piles and steel pipe piles based on the constructed steel pipe piles through positioning sleeves. The positioning sleeves are provided with inner tooth rollers for vertically guiding steel sheet piles and tooth double rollers for vertically guiding steel pipe piles; during construction, the steel pipe piles are first constructed to a predetermined height, and after the positioning sleeves are installed, the steel sheet piles are constructed. This patent can solve the problem of inclination of steel pipe piles and steel sheet piles through its technical solution, but when the steel pipe piles are constructed first, affected by the soil, the steel pipe piles may not only tilt in the vertical direction, but also rotate in the horizontal direction. The rotation in the horizontal direction will cause the lock of the steel sheet pile to be unable to overlap with the steel pipe pile according to the designed position, thereby affecting the subsequent construction position of the steel sheet piles. This patent and the prior art do not solve this problem.

[0004] Therefore, how to avoid the rotation of steel pipe piles during the construction of steel pipe piles and steel sheet piles is a technical problem that urgently needs to be solved. Summary of the invention

[0005] In view of the shortcomings existing in the prior art, the present invention provides a combined pile driving process of steel pipe piles and steel sheet piles and a combined pile driving device thereof, wherein the tops of the steel pipe piles and the steel sheet piles are fixed by a first hydraulic clamp, a second hydraulic clamp, and a third hydraulic clamp, so that the positions of the steel pipe piles and the steel sheet piles remain stable during the pile driving process, and during the downward pressure pile driving process, the resistance of the steel sheet piles can be used to prevent the steel pipe piles from rotating in the soil, thereby ensuring that the lock of the steel sheet pile is overlapped with the steel pipe pile according to the designed position.

[0006] The present invention provides a combined steel pipe pile and steel sheet pile sinking process, comprising the following steps:

[0007] S1, assembling the steel pipe piles and the steel sheet piles to form a combination of the steel pipe piles and the steel sheet piles;

[0008] S2, setting the sizes of the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp according to the size of the assembly, and installing the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp on the slide rail of the vibrating hammer respectively;

[0009] S3, clamping the first hydraulic clamp and the second hydraulic clamp on both sides of the top of the steel pipe pile respectively, clamping the third hydraulic clamp on the top of the steel sheet pile, sliding the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp along the slide rail so that the center of gravity of the vibrating hammer and the center of gravity of the assembly are located on the same vertical line;

[0010] S4, use a vibrating hammer to vertically press down the assembly to carry out combined pile sinking.

[0011] The technical solution fixes the tops of the steel pipe piles and steel sheet piles by means of the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp, so that the positions of the steel pipe piles and the steel sheet piles remain stable during the pile sinking process. During the downward pressure pile sinking process, the resistance of the steel sheet piles can be used to prevent the steel pipe piles from rotating in the soil, thereby ensuring that the lock of the steel sheet pile is overlapped with the steel pipe pile according to the designed position.

[0012] In some of the embodiments, in step S1, when assembling the steel pipe pile and the steel sheet pile, the first locking buckle of the steel pipe pile and the second locking buckle of the steel sheet pile are engaged with each other.

[0013] In some of the embodiments, in step S2, the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp are all provided with a bidirectional hydraulic cylinder; when the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp are slid along the slide rail and the center of gravity of the vibratory hammer and the center of gravity of the combination cannot be located on the same vertical line, the bidirectional hydraulic cylinder of the first hydraulic clamp, the second hydraulic clamp, or the third hydraulic clamp is adjusted so that the center of gravity of the vibratory hammer and the center of gravity of the combination are located on the same vertical line.

[0014] In this embodiment of the technical solution, with the help of the adjustment of the bidirectional hydraulic cylinder, the position of the assembly can be accurately adjusted to ensure that the center of gravity of the vibrating hammer is aligned with the center of gravity of the assembly, thereby further improving the accuracy of the combined pile driving.

[0015] In some embodiments, step S2 also includes installing a first locator at the bottom of the vibratory hammer, the first locator is used to locate the vertical line of the center of gravity of the vibratory hammer; installing a second locator at the top of the assembly, the second locator is used to locate the vertical line of the center of gravity of the assembly; step S3 also includes making the first locator and the second locator on the same vertical line.

[0016] This technical solution uses the first positioner and the second positioner to assist in determining the vertical line where the center of gravity of the vibrating hammer and the assembly is located, which enables workers to make a quick judgment, thereby improving the centering efficiency.

[0017] In some embodiments, the first locator emits a laser beam that is collinear with a vertical line where the center of gravity of the vibrating hammer is located. When the second locator receives the laser beam, it can be determined that the first locator and the second locator are located on the same vertical line.

[0018] This technical solution uses the first locator to emit a laser beam that is collinear with the perpendicular line of the center of gravity of the vibratory hammer. When the second locator receives the laser beam, it can determine whether the two are on the same vertical line, thereby achieving precise alignment, reducing the difficulty of centering, and improving the centering accuracy and stability during construction.

[0019] Based on the above-mentioned steel pipe pile and steel sheet pile combined pile driving process, the present invention also provides a steel pipe pile and steel sheet pile combined pile driving device, which is applied to the above-mentioned steel pipe pile and steel sheet pile combined pile driving process, including a vibrating hammer for pile driving the combination, the vibrating hammer is provided with a slide rail, and the slide rail is slidably connected to the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp respectively; wherein the first hydraulic clamp and the second hydraulic clamp are used for clamping the steel pipe piles, and the third hydraulic clamp is used for clamping the steel sheet piles.

[0020] The technical solution uses the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp connected by the slide rail to firmly fix the steel pipe piles and the steel sheet piles to prevent the combination from tilting during the pile sinking process; at the same time, the resistance of the steel sheet piles is used to prevent the steel pipe piles from rotating during the pile sinking process; and the position of the clamp can be flexibly adjusted through the slide rail to ensure the precise alignment of the steel pipe piles and the steel sheet piles during pile sinking, thereby improving construction accuracy.

[0021] In some of the embodiments, the combined steel pipe pile and steel sheet pile pile driving device further includes a first lock buckle and a second lock buckle, wherein the first lock buckle is arranged on both sides of the steel pipe pile, and the second lock buckle is arranged on both sides of the steel sheet pile.

[0022] This technical solution can ensure that the steel pipe pile and the steel sheet pile are firmly engaged during the pile sinking process by arranging the first lock buckle on both sides of the steel pipe pile and the second lock buckle on both sides of the steel sheet pile.

[0023] In some of the embodiments, the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp are all provided with bidirectional hydraulic cylinders, so that the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp can be adjusted perpendicular to the sliding direction of the slide rail.

[0024] This technical solution can improve the adjustment flexibility and accuracy of the clamp through the configuration of a bidirectional hydraulic cylinder, and further ensure that the center of gravity of the vibrating hammer and the assembly is aligned.

[0025] In some of the embodiments, the steel pipe pile and steel sheet pile combination pile driving device also includes a first locator and a second locator, wherein the first locator is installed at the bottom of the vibratory hammer to locate the vertical line of the center of gravity of the vibratory hammer; the second locator is installed at the top of the combination to locate the vertical line of the center of gravity of the combination.

[0026] This technical solution facilitates the staff to judge whether the vibration hammer and the assembly are aligned by setting the first positioner and the second positioner, so as to make timely adjustments.

[0027] In some of these embodiments, the first locator is a laser transmitter and the second locator is a laser receiver.

[0028] This technical solution uses laser positioning to intuitively determine the deviation between the vibrating hammer and the assembly, making it easier for workers to make adjustments.

[0029] Based on the above scheme, the combined pile driving process of steel pipe piles and steel sheet piles and the combined pile driving device thereof in the embodiment of the present invention fix the tops of the steel pipe piles and steel sheet piles by means of the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp, so that the positions of the steel pipe piles and the steel sheet piles remain stable during the pile driving process, and during the downward pressure pile driving process, the resistance of the steel sheet piles can be used to prevent the steel pipe piles from rotating in the soil, thereby ensuring that the lock of the steel sheet piles and the steel pipe piles are overlapped according to the designed position, thereby ensuring the overall straightness and bite quality of the combination, and avoiding deviations in the actual construction position; at the same time, the positions of the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp can be adjusted by means of the slide rail, so that the center of gravity of the vibrating hammer and the center of gravity of the combination are located on the same vertical line, further improving the construction accuracy during the pile driving process and avoiding deviation; and, the steel sheet piles and steel pipe piles are pressed downward to drive the piles at the same time, which can improve the construction efficiency. In summary, the combined steel pipe pile and steel sheet pile driving process in this embodiment can effectively deal with the situation of dense soil and difficult pile driving encountered during construction, avoid rotation of steel pipe piles during construction, and improve the accuracy of combined steel pipe pile and steel sheet pile driving construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0031] Figure 1 Schematic diagram of the structure of a steel pipe pile and steel sheet pile combined pile driving device in an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a steel pipe pile and steel sheet pile assembly in an embodiment of the present invention.

[0033] In the figure:

[0034] 1. Steel pipe piles; 2. Steel sheet piles; 3. Vibratory hammer; 4. Slide rails;

[0035] 101, first hydraulic clamp; 102, second hydraulic clamp; 103, first lock;

[0036] 201. The third hydraulic clamp; 202. The second locking buckle. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figure 1 As shown, in one embodiment of the steel pipe pile and steel sheet pile combined pile driving process and combined pile driving device of the present invention, the steel pipe pile and steel sheet pile combined pile driving process comprises the following steps:

[0042] S1, assembling the steel pipe pile 1 and the steel sheet pile 2 to form a combination of the steel pipe pile 1 and the steel sheet pile 2;

[0043] S2, according to the size of the assembly, set the size of the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201, and install the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 on the slide rail 4 of the vibration hammer 3 respectively;

[0044] S3, clamp the first hydraulic clamp 101 and the second hydraulic clamp 102 on both sides of the top of the steel pipe pile 1, clamp the third hydraulic clamp 201 on the top of the steel sheet pile 2, slide the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 along the slide rail 4, so that the center of gravity of the vibrating hammer 3 and the center of gravity of the assembly are located on the same vertical line;

[0045] S4, using the vibrating hammer 3 to vertically press down the assembly to perform combined pile sinking.

[0046] In the above-mentioned schematic embodiment, the tops of the steel pipe pile 1 and the steel sheet pile 2 are fixed by the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201, so that the positions of the steel pipe pile 1 and the steel sheet pile 2 remain stable during the pile sinking process. During the pile sinking process, the resistance of the steel sheet pile 2 can be used to prevent the steel pipe pile 1 from rotating in the soil, thereby ensuring that the lock of the steel sheet pile 2 and the steel pipe pile 1 are overlapped according to the designed position, thereby ensuring the overall straightness and bite quality of the assembly and avoiding deviations in the actual construction position; at the same time, the positions of the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 can be adjusted by the slide rail 4, so that the center of gravity of the vibrating hammer 3 and the center of gravity of the assembly are located on the same vertical line, further improving the construction accuracy during the pile sinking process and avoiding deflection; and, the steel sheet pile 2 and the steel pipe pile 1 are pressed down to sink the piles at the same time, which can improve the construction efficiency. In summary, the combined steel pipe pile and steel sheet pile driving process in this embodiment can effectively deal with the situation of dense soil and difficult pile driving encountered during construction, avoid rotation of the steel pipe pile 1 during construction, and improve the accuracy of the combined pile driving construction of the steel pipe pile 1 and steel sheet pile 2.

[0047] In some embodiments, Figure 2 As shown, in step S1, when the steel pipe pile 1 and the steel sheet pile 2 are assembled, the first lock buckle 103 of the steel pipe pile 1 and the second lock buckle 202 of the steel sheet pile 2 are engaged with each other.

[0048] In some embodiments, in step S2, the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 are all provided with a bidirectional hydraulic oil cylinder; when the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 are slid along the slide rail 4, and the center of gravity of the vibrating hammer 3 and the center of gravity of the assembly cannot be located on the same vertical line, the bidirectional hydraulic oil cylinder of the first hydraulic clamp 101, the second hydraulic clamp 102, or the third hydraulic clamp 201 is adjusted so that the center of gravity of the vibrating hammer 3 and the center of gravity of the assembly are located on the same vertical line. In this embodiment, with the help of the adjustment of the bidirectional hydraulic oil cylinder, the position of the assembly can be accurately adjusted to ensure that the center of gravity of the vibrating hammer 3 is aligned with the center of gravity of the assembly, further improving the precision of the combined pile driving.

[0049] In some embodiments, step S2 further includes: installing a first locator at the bottom of the vibrating hammer 3, the first locator is used to locate the vertical line where the center of gravity of the vibrating hammer 3 is located; installing a second locator at the top of the assembly, the second locator is used to locate the vertical line where the center of gravity of the assembly is located; step S3 also includes: making the first locator and the second locator be located on the same vertical line. The first locator and the second locator assist in determining the vertical line where the center of gravity of the vibrating hammer 3 and the assembly are located, so that the staff can make a quick judgment, thereby improving the centering efficiency.

[0050] In some embodiments, the first locator emits a laser beam that is collinear with the vertical line where the center of gravity of the vibrating hammer 3 is located. When the second locator receives the laser beam, it can be determined that the first locator and the second locator are located on the same vertical line. By emitting a laser beam that is collinear with the vertical line where the center of gravity of the vibrating hammer 3 is located, when the second locator receives the laser beam, it can be determined whether the two are located on the same vertical line, thereby achieving precise alignment, reducing the difficulty of centering, and improving the centering accuracy and stability during construction.

[0051] Based on the above-mentioned steel pipe pile and steel sheet pile combined pile sinking process, Figure 1 As shown, the present invention also provides a steel pipe pile and steel sheet pile combined pile driving device, which is applied to the above-mentioned steel pipe pile and steel sheet pile combined pile driving process, including a vibrating hammer 3 for driving the combination, and a slide rail 4 is provided on the vibrating hammer 3, and the slide rail 4 is slidably connected with the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 respectively; wherein the first hydraulic clamp 101 and the second hydraulic clamp 102 are used to clamp the steel pipe pile 1, and the third hydraulic clamp 201 is used to clamp the steel sheet pile 2.

[0052] In the above-mentioned schematic embodiment, the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 connected by the slide rail 4 can firmly fix the steel pipe pile 1 and the steel sheet pile 2 to prevent the combination from tilting during the pile sinking process; at the same time, the resistance of the steel sheet pile 2 is utilized to prevent the steel pipe pile 1 from rotating during the pile sinking process; and the position of the clamp can be flexibly adjusted through the slide rail 4 to ensure the precise alignment of the steel pipe pile 1 and the steel sheet pile 2 during pile sinking, thereby improving the construction accuracy.

[0053] In some embodiments, Figure 2 As shown, the steel pipe pile and steel sheet pile combined pile driving device further includes a first lock buckle 103 and a second lock buckle 202, wherein the first lock buckle 103 is arranged on both sides of the steel pipe pile 1, and the second lock buckle 202 is arranged on both sides of the steel sheet pile 2. By arranging the first lock buckle 103 on both sides of the steel pipe pile 1 and the second lock buckle 202 on both sides of the steel sheet pile 2, it can be ensured that the steel pipe pile 1 and the steel sheet pile 2 are firmly engaged during the pile driving process, thereby enhancing the overall stability and structural strength of the combined pile and improving the construction quality.

[0054] In some embodiments, the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 are all provided with bidirectional hydraulic cylinders, so that the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201 can be adjusted perpendicular to the sliding direction of the slide rail 4. Through the configuration of the bidirectional hydraulic cylinder, the adjustment flexibility and accuracy of the clamp can be improved, and the center of gravity of the vibrating hammer 3 and the assembly can be further ensured to be aligned, thereby improving the construction accuracy.

[0055] In some embodiments, the steel pipe pile and steel sheet pile combined pile driving device further includes a first locator and a second locator, wherein the first locator is installed at the bottom of the vibrating hammer 3 and is used to locate the vertical line where the center of gravity of the vibrating hammer 3 is located; the second locator is installed at the top of the combination and is used to locate the vertical line where the center of gravity of the combination is located. The setting of the first locator and the second locator facilitates the staff to judge whether the vibrating hammer 3 and the combination are aligned, so as to make timely adjustments, which can effectively improve the efficiency of the combined pile driving operation.

[0056] It should be noted that after the vibration hammer 3 and the assembly are aligned, the first positioner and the second positioner can be dismantled for recycling, thereby saving construction costs.

[0057] In some embodiments, the first locator is a laser transmitter, and the second locator is a laser receiver. Through laser positioning, the deviation between the vibrating hammer 3 and the assembly can be intuitively determined, which is convenient for the staff to make adjustments.

[0058] Through the description of multiple embodiments of the combined pile driving process of steel pipe piles and steel sheet piles and the combined pile driving device of the present invention, it can be seen that the combined pile driving process of steel pipe piles and steel sheet piles and the combined pile driving device of the present invention have at least one or more of the following advantages:

[0059] 1. The combined steel pipe pile and steel sheet pile driving process provided by the present invention fixes the tops of the steel pipe pile 1 and the steel sheet pile 2 by means of the first hydraulic clamp 101, the second hydraulic clamp 102, and the third hydraulic clamp 201, so that the positions of the steel pipe pile 1 and the steel sheet pile 2 remain stable during the pile driving process. During the downward pressure pile driving process, the resistance of the steel sheet pile 2 can be used to prevent the steel pipe pile 1 from rotating in the soil, thereby ensuring that the lock of the steel sheet pile 2 overlaps the steel pipe pile 1 according to the designed position, thereby ensuring the overall straightness and bite quality of the assembly, and avoiding deviations in the actual construction position;

[0060] 2. The combined steel pipe pile and steel sheet pile sinking process provided by the present invention can improve the construction efficiency by simultaneously sinking the steel sheet pile 2 and the steel pipe pile 1;

[0061] 3. The combined steel pipe pile and steel sheet pile pile driving device provided by the present invention comprises a first hydraulic clamp 101, a second hydraulic clamp 102 and a third hydraulic clamp 201 connected by a slide rail 4, which can firmly fix the steel pipe pile 1 and the steel sheet pile 2 to prevent the combination from tilting during the pile driving process.

[0062] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0063] The above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A combined steel pipe pile and steel sheet pile sinking process, characterized in that: The following steps are involved: S1, assembling the steel pipe pile and the steel sheet pile to form a combination of the steel pipe pile and the steel sheet pile; when assembling the steel pipe pile and the steel sheet pile, the first locking buckle of the steel pipe pile and the second locking buckle of the steel sheet pile are engaged; S2, according to the size of the assembly, set the size of the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp, and respectively install the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp on the slide rail of the vibrating hammer; install a first positioner at the bottom of the vibrating hammer, the first positioner is used to locate the vertical line where the center of gravity of the vibrating hammer is located; install a second positioner at the top of the assembly, the second positioner is used to locate the vertical line where the center of gravity of the assembly is located; S3, clamping the first hydraulic clamp and the second hydraulic clamp on both sides of the top of the steel pipe pile respectively, clamping the third hydraulic clamp on the top of the steel sheet pile, sliding the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp along the slide rail so that the first locator and the second locator are located on the same vertical line, so that the center of gravity of the vibrating hammer and the center of gravity of the assembly are located on the same vertical line; S4, use a vibrating hammer to vertically press down the assembly to carry out combined pile sinking.

2. The combined steel pipe pile and steel sheet pile sinking process according to claim 1 is characterized in that: In step S2, the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp are all provided with a bidirectional hydraulic cylinder; when the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp are slid along the slide rail and the center of gravity of the vibratory hammer and the center of gravity of the combination cannot be located on the same vertical line, adjust the bidirectional hydraulic cylinder of the first hydraulic clamp, the second hydraulic clamp, or the third hydraulic clamp so that the center of gravity of the vibratory hammer and the center of gravity of the combination are located on the same vertical line.

3. The combined steel pipe pile and steel sheet pile sinking process according to claim 1 is characterized in that: The first locator emits a laser beam that is collinear with a vertical line where the center of gravity of the vibrating hammer is located. When the second locator receives the laser beam, it can be determined that the first locator and the second locator are located on the same vertical line.

4. A combined steel pipe pile and steel sheet pile sinking device, characterized in that: The steel pipe pile and steel sheet pile combined pile driving process applied to any one of claims 1 to 3, the steel pipe pile and steel sheet pile combined pile driving device comprises a vibrating hammer for driving the combined body, the vibrating hammer is provided with a slide rail, and the slide rail is slidably connected to the first hydraulic clamp, the second hydraulic clamp, and the third hydraulic clamp respectively; wherein the first hydraulic clamp and the second hydraulic clamp are used to clamp the steel pipe pile, and the third hydraulic clamp is used to clamp the steel sheet pile; It also includes a first lock buckle and a second lock buckle, wherein the first lock buckle is arranged on both sides of the steel pipe pile, and the second lock buckle is arranged on both sides of the steel sheet pile; It also includes a first locator and a second locator, wherein the first locator is installed at the bottom of the vibration hammer to locate the vertical line of the center of gravity of the vibration hammer; the second locator is installed at the top of the assembly to locate the vertical line of the center of gravity of the assembly.

5. The combined steel pipe pile and steel sheet pile sinking device according to claim 4, characterized in that: The first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp are all provided with bidirectional hydraulic cylinders, so that the first hydraulic clamp, the second hydraulic clamp and the third hydraulic clamp can be adjusted perpendicular to the sliding direction of the slide rail.

6. The combined steel pipe pile and steel sheet pile sinking device according to claim 4, characterized in that: The first locator is a laser transmitter and the second locator is a laser receiver.

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