A pile structure positioning device with a local resonance unit and a forming construction method

Abstract

The present invention provides a pile structure positioning device with a local resonance unit and a forming construction method, wherein the pile structure positioning device is arranged at the notch of the excavated groove, and the pile structure positioning device includes a fixing ring, a connecting plate, an adjusting cylinder, a force plate and a positioning ring; a steel cage is arranged in the excavated groove, and the fixing ring is centrally arranged at the top of the steel cage; the positioning ring is arranged inside the fixing ring and its outer diameter is smaller than the inner diameter of the fixing ring; a plurality of connecting plates extending vertically into the deep of the excavated groove are fixedly connected around the bottom side of the positioning ring, and the outer wall of each connecting plate is provided with an adjusting cylinder, and the telescopic end of the adjusting cylinder is fixedly provided with a force plate and abuts against the inner wall of the steel cage. Compared with the prior art, the pile structure positioning device designed by the method of the present invention can ensure the placement accuracy of the local resonance unit and avoid the influence of position deviation on the vibration reduction effect.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering piles, and in particular relates to a pile structure positioning device with a local resonance unit and a forming construction method. Background Art

[0002] As part of the building structure, engineering piles are formed by steel cages and concrete pouring. Generally, they can be regarded as the foundation of the building structure. In the pile foundation, engineering piles bear most of the loads transmitted by the superstructure. When ground vibration occurs, the vibration transmitted upward from the piles will affect the safety and comfort of the building. Therefore, it is necessary to set up vibration isolation and vibration reduction structures, but the existing technology has the following problems:

[0003] 1. In order to isolate and reduce vibration, existing technologies often use vibration isolation bearings to position engineering piles. This method is not applicable when the upper load is too large, such as in high-rise buildings. In addition, the construction of the supporting vibration isolation bearings is relatively difficult.

[0004] 2. The supporting positioning device of the engineering pile in the prior art has structural defects, which will cause position deviation during the construction of the engineering pile and affect the vibration isolation effect.

[0005] 3. In the prior art, vibration isolation trenches or vibration isolation barriers are generally used as vibration isolation measures for building foundations. Affected by the structure of the engineering piles themselves, the vibration isolation effects of these measures are difficult to achieve low-frequency vibration isolation. Summary of the invention

[0006] The invention provides a pile structure positioning device with a local resonance unit and a forming construction method, which are used to solve the problems existing in the prior art.

[0007] In the first aspect, the present invention provides a pile structure positioning device with a local resonance unit, which is arranged at the slot of an excavated groove, and the pile structure positioning device includes a fixing ring, a positioning ring, a connecting plate, an adjusting cylinder and a force-bearing plate; a steel cage is arranged in the excavated groove, and the fixing ring is centrally arranged on the top of the steel cage; the positioning ring is arranged inside the fixing ring, and the outer diameter of the positioning ring is smaller than the inner diameter of the fixing ring; a plurality of connecting plates extend vertically into the depth of the excavated groove and are fixedly connected to the four sides of the bottom side of the positioning ring, and the adjusting cylinder is arranged on the outer side wall of the connecting plate; the force-bearing plate is arranged at the telescopic end of the adjusting cylinder, and the force-bearing plate abuts against the inner wall of the steel cage.

[0008] Through the above technical solution, the positioning ring is used to position the local resonance unit. Since the inner diameter of the fixed ring is larger than the outer diameter of the positioning ring, the fixed ring will not interfere with the radial movement of the positioning ring within a certain range, and the position of the positioning ring relative to the center of the excavated groove or the steel cage can be adjusted and corrected by adjusting the cylinder. Therefore, the pile structure positioning device designed by the method of the present invention can ensure the placement accuracy of the local resonance unit and avoid the influence of position deviation on the vibration reduction effect.

[0009] Preferably, it also includes a placing piece, a connecting plate, a spring and a guide rod; a plurality of placing pieces are evenly arranged around the positioning ring, the first end of the placing piece is fixedly connected to the fixing ring, the bottom surface of the second end of the placing piece abuts against the top of the positioning ring and faces the center of the positioning ring; two vertical plates spaced apart from each other are arranged on the top side of the second end of the placing piece, the connecting plate is rotatably connected between the two vertical plates, and the middle part of the guide rod is fixedly connected to the connecting plate; one end of the spring is fixedly connected to one end of the guide rod close to the inner wall of the positioning ring, and the other end is fixedly connected to the inner wall of the positioning ring.

[0010] Through the above technical solution, in order to realize the rapid positioning of the local resonance unit when it is lowered, in the present invention, a guide rod is rotatably arranged on the placement member, and a spring is arranged at the lower end of the guide rod, so that the guide rod is tilted upward, thereby increasing the receiving range. At the same time, after the local resonance unit passes through the guide rod, since the guide rod is rotatably connected to the placement member, the guide rod will be reset.

[0011] Preferably, both ends of the guide rod are rotatably connected to guide wheels.

[0012] According to the technical solution, by arranging the guide wheel on the guide rod, during the lowering process of the local resonance unit, the mutual friction and wear between the components can be avoided through the rotation of the guide wheel.

[0013] Preferably, two fixed cylinders are fixedly provided on the bottom side of the fixed ring, the telescopic ends of the two fixed cylinders are away from each other along the same inner ring diameter of the fixed ring, and the telescopic ends of the fixed cylinders are fixedly connected with abutment plates for abutting the wall of the excavated groove.

[0014] Through the above technical solution, in order to prevent the fixing ring from making relative movement when the adjusting cylinder adjusts the position of the positioning ring, in the present invention, the fixing cylinder is extended so that the two abutment plates abut against the groove wall of the excavated groove at the same time, thereby fixing the fixing ring.

[0015] Preferably, a suspension device is provided on the outer peripheral wall of the fixing ring.

[0016] The above technical solution is conducive to the rapid assembly and disassembly of the pile structure positioning device of the present invention.

[0017] Preferably, the suspension device includes a plurality of sets of lifting rings, a sliding groove provided on the outer peripheral wall of the fixing ring and a plurality of connecting blocks, the connecting blocks are slidably connected to the sliding grooves, and the ends of the lifting rings are rotatably connected to the connecting blocks.

[0018] Through the above technical solution, in order to facilitate suspension, the lifting ring is fixedly connected to the fixing ring through the connecting block, and the lifting ring can be suspended at any angle.

[0019] Preferably, a positioning column is fixedly provided at one end of the lifting ring close to the fixing ring, a positioning hole is opened on the outer peripheral wall of the fixing ring, the positioning hole is located at the top side of the sliding groove, and the positioning column is selectively inserted into the positioning hole.

[0020] Through the above technical solution, since the connecting block is slidably connected to the fixing ring, in order to prevent slipping during the suspension process, the positioning column is inserted into the positioning hole during suspension, thereby avoiding sliding of the connecting block.

[0021] In a second aspect, the present invention further provides a method for forming a pile structure with a local resonance unit, using the above-mentioned pile structure positioning device with a local resonance unit, the method comprising: S10: using a drilling machine to excavate a weak soil layer to form an excavation groove;

[0022] S20: first lower the sleeve toward the notch of the excavated groove, and then lower the steel cage;

[0023] S30: After the pile structure positioning device is arranged toward the notch of the excavated groove, the matching multiple groups of local resonance units are positioned to the inner center of the steel cage by the pile structure positioning device with the local resonance unit;

[0024] S40: pouring concrete towards the steel cage, and after the pouring is completed, removing the sleeve and the pile structure positioning device with the local resonance unit;

[0025] S50: After the concrete solidifies, the construction is completed.

[0026] Through the above technical scheme, the weak soil layer is excavated and the steel cage is set and concrete is poured, which significantly enhances the bearing capacity and stability of the foundation. The local resonance unit is precisely placed inside the steel cage, and there is a concrete scatterer inside the local resonance unit. The high density and large mass of the concrete structure can enable the structure to absorb and disperse vibration energy, thereby reducing the natural frequency of the structure, increasing the difference between the free vibration frequency of the structure and the external excitation frequency, thereby reducing the resonance phenomenon of the structure. It effectively blocks the transmission of low-frequency vibration waves and greatly improves the vibration reduction effect and living comfort of the building. The construction process of the method of the present invention is reasonably designed, with the sleeve first, the steel cage, and then the concrete is poured and the sleeve is removed, which improves the construction efficiency. In addition, the overall structural stability and durability are enhanced, and it can resist external loads and deformation. In addition, the method of the present invention is widely applicable to different geological conditions, has strong adaptability and flexibility, and at the same time, it also has long-term vibration reduction effect and environmental protection and energy-saving benefits.

[0027] Preferably, the local resonance unit includes a cylindrical sleeve and a plurality of vertically connected vibration-damping strips; each vibration-damping strip includes a cylindrical steel shell, a concrete scatterer and a sealing gasket, the concrete scatterer is arranged inside the cylindrical steel shell, and the sealing gasket is arranged at both end openings of the cylindrical steel shell; the cylindrical sleeve wraps at least one group of vibration-damping strips.

[0028] Through the above technical solution, a local resonance unit is set inside the engineering pile to block low-frequency noise. When external vibration is transmitted to the engineering pile, such as low-frequency resonance from the subway, the concrete scatterer inside the local resonance unit can effectively block the transmission of vibration waves in the low-frequency band, thereby improving the safety and comfort of the building.

[0029] Preferably, both ends of the cylindrical steel shell are inclined surfaces, and the bottom end inclined surface of the cylindrical steel shell is spliced ​​to the top end inclined surface of the adjacent cylindrical steel shell.

[0030] Through the above technical solution, since the local resonance unit is composed of multiple groups of vibration-damping strips, the vibration-damping effect at the connection position is relatively low. In the present invention, the concrete scatterer inside the vibration-damping strip can improve the vibration-damping effect at the connection point of each vibration-damping strip by means of mutually inclined surfaces.

[0031] In summary, the present invention includes at least one of the following beneficial technical effects:

[0032] 1. Compared with the prior art, the present invention can accurately place the local resonance unit in the middle of the steel cage by designing a special pile structure positioning device, thereby improving the construction accuracy and ensuring that the local resonance unit can play its best vibration reduction role. A fixed cylinder is arranged on the bottom side of the fixed ring and contacts with the groove wall through the abutment plate, which effectively prevents the pile structure positioning device from moving during the adjustment process, thereby enhancing the stability of the entire construction structure.

[0033] 2. Compared with the prior art, the placement member of the pile structure positioning device of the present invention is provided with a guide rod and a guide wheel, so that the local resonance unit can be quickly positioned and the friction is reduced during the lowering process, thereby protecting the local resonance unit and the guide rod and improving the construction efficiency.

[0034] 3. Compared with the existing technology, the method of the present invention can be widely applied to different geological conditions, has strong adaptability and flexibility, and at the same time, has long-term vibration reduction effect and environmental protection and energy-saving benefits.

[0035] 4. Compared with the prior art, the present invention also designs a unique pile structure. On the basis of the original steel cage + concrete pile structure, multiple groups of local resonance units are added to the inside of the steel cage. Each group of local resonance units is composed of multiple vibration-damping strips. Each vibration-damping strip contains a concrete scatterer, which can effectively block the transmission of vibration waves in the low-frequency band, significantly improve the vibration-damping effect of the engineering piles, thereby improving the safety and comfort of the building. By designing the upper and lower ends of the cylindrical steel shell to be inclined to each other and spliced ​​with each other, the vibration-damping effect of the connection of the vibration-damping strips is enhanced, making the vibration-damping performance of the entire local resonance unit more uniform and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 It is a structural schematic diagram of the pile structure positioning device in the first embodiment of the present invention.

[0038] Figure 2 yes Figure 1 Schematic diagram of the structure from another perspective.

[0039] Figure 3 yes Figure 1 Enlarged view of part A.

[0040] Figure 4 It is a schematic diagram of the structure of the local resonance unit in the second embodiment of the present invention.

[0041] Figure 5 It is a schematic diagram of the structure of the vibration damping strip in the second embodiment of the present invention.

[0042] Figure 6 yes Figure 5 Section view along AA.

[0043] Figure numerals: 1. fixing ring; 11. placing piece; 12. vertical plate; 13. guide wheel; 14. connecting plate; 15. spring; 16. guide rod; 17. connecting plate; 18. adjusting cylinder; 19. force plate; 2. positioning ring; 21. fixing cylinder; 22. abutment plate; 3. lifting ring; 31. positioning column; 32. positioning hole; 33. sliding groove; 34. connecting block; 4. cylindrical sleeve; 41. cylindrical steel shell; 42. sealing gasket; 43. concrete scatterer. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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 creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0046] This embodiment discloses a pile structure positioning device with a local resonance unit and a forming construction method, which are used to solve the problem that low-frequency structural vibration cannot be easily blocked in the prior art.

[0047] Embodiment 1

[0048] like Figure 1 and Figure 2 As shown, this embodiment discloses a pile structure positioning device with a local resonance unit, which is arranged at the notch of the excavated groove. The pile structure positioning device includes a fixing ring 1, a positioning ring 2, a connecting plate 17, an adjusting cylinder 18, and a force-bearing plate 19.

[0049] A steel cage is arranged in the excavated groove, and a fixing ring 1 is centrally arranged on the top of the steel cage.

[0050] The positioning ring 2 is arranged inside the fixing ring 1, and the outer diameter of the positioning ring 2 is smaller than the inner diameter of the fixing ring 1. A plurality of connecting plates 17 vertically extend into the depth of the excavated groove and are fixedly connected to the four sides of the bottom side of the positioning ring 2, and the adjusting cylinder 18 is arranged on the outer side wall of the connecting plate 17. The force plate 19 is arranged at the telescopic end of the adjusting cylinder 18, and the force plate 19 abuts against the inner wall of the steel cage.

[0051] Through the above technical solution, the positioning ring 2 is used to position the local resonance unit to be put into use. The local resonance unit is a long tube with sound insulation and vibration reduction. Compared with the prior art, the inner diameter of the fixing ring 1 in the pile structure positioning device of the present invention is larger than the outer diameter of the positioning ring 2, so within a certain range, the fixing ring 1 will not interfere with the radial movement of the positioning ring 2, and the position of the positioning ring 2 relative to the center of the excavated groove or the steel cage can be adjusted and corrected by adjusting the cylinder 18. Therefore, the pile structure positioning device designed by the method of the present invention can ensure the placement accuracy of the local resonance unit and avoid the influence of position deviation on the vibration reduction effect.

[0052] It should be additionally explained that the four regulating cylinders 18 can adjust the extension length of the telescopic ends thereof by adjusting the amount of gas pumped in.

[0053] Preferably, the side wall of the horizontal portion of the placement piece 11 may be provided with scale markings.

[0054] Preferably, the abutting plate 22 is made of flexible rubber.

[0055] Furthermore, in order to improve the integrity of the positioning ring 2 and the fixing ring 1, the receiving range of the positioning ring 2 is expanded, and the function of relative radial movement between the positioning ring 2 and the fixing ring 1 is not destroyed. Figure 1 As shown, the pile structure positioning device of the present invention further includes a placement piece 11, a connecting plate 14, a spring 15 and a guide rod 16. In this embodiment, the placement piece 11 is "L"-shaped, and there are a total of four placement pieces 11 evenly arranged around the outer peripheral wall of the positioning ring 2. One end of the placement piece 11 is fixedly connected to the fixing ring 1, and the bottom surface of the other end abuts against the top of the positioning ring 2 and faces the center of the positioning ring 2. Two mutually spaced vertical plates 12 are arranged on the top side of the end of the placement piece 11 abutting against the positioning ring 2. The connecting plate 14 is located between the two vertical plates 12 and is rotatably connected to the two vertical plates 12. The middle part of the guide rod 16 is rotatably connected to the connecting plate 14. One end of the spring 15 is fixedly connected to one end of the guide rod 16 close to the inner wall of the positioning ring 2, and the other end is fixedly connected to the inner wall of the positioning ring 2.

[0056] It should be noted that the positioning ring 2 and the fixing ring 1 are both provided with a hoisting hole (not shown in the figure) and a spring connection hole. When put into the construction site, the positioning ring 2 can be hoisted first, and after the four cylinders of the positioning ring 2 are opened and pre-fixed, the fixing ring 1 can be hoisted, and then the fixing ring 1 and the positioning ring 2 are connected by four springs 15. On the contrary, when disassembling, the opposite operation to the above construction scheme is adopted.

[0057] Compared with the prior art, the pile structure positioning device of the present invention is provided with a guide rod 16 rotatably disposed on the placement member 11, and a spring 15 is disposed at the lower end of the guide rod 16 to connect with the inner wall of the positioning ring 2, so that the guide rod 16 is tilted upward, thereby increasing the receiving range of the positioning ring 2. After the guide rod 16 receives the local resonance unit, when the local resonance unit slides down under the guidance of the guide rod 16 and is placed inside the steel cage, due to the gravity of the local resonance unit itself during the sliding process, the guide rod 16 will change from an inclined state to a vertical state, at which time the local resonance unit is placed inside the steel cage in a vertical state, and when the local resonance unit completely separates from the local resonance unit and enters the steel cage, since the guide rod 16 is rotatably connected to the placement member 11, the guide rod 16 is automatically reset under the action of the spring 15, so as to facilitate the continuous reception of the local resonance unit.

[0058] Furthermore, two ends of the guide rod 16 are rotatably connected to a plurality of guide wheels 13 .

[0059] Through the above technical solution, in order to reduce the friction on the guide rod 16, a guide wheel 13 is provided on the guide rod 16, so that during the lowering process of the local resonance unit, the sliding friction is changed to rolling friction, thereby avoiding relative friction or direct contact between the guide rod 16 and the outer side of the local resonance unit.

[0060] Furthermore, two fixed cylinders 21 are fixedly provided on the bottom side of the fixed ring 1 , and the telescopic ends of the two fixed cylinders 21 are away from each other along the same inner ring diameter of the fixed ring 1 , and the telescopic ends of the fixed cylinders 21 are fixedly connected with abutment plates 22 .

[0061] It should be explained that, in order to prevent the fixing ring 1 from moving when the adjusting cylinder 18 adjusts the positioning ring 2, in the present invention, after the fixing ring 1 is placed on the steel cage, the fixing cylinder 21 is adjusted to fix both ends of the fixing ring 1. At the same time, in order to increase the friction force and protect the fixing cylinder 21, an abutment plate 22 is fixedly provided on the output end of the fixing cylinder 21. In this embodiment, the abutment plate 22 is made of flexible rubber.

[0062] Furthermore, if Figure 1 and Figure 3 As shown, the outer wall of the fixing ring 1 is provided with a suspension device, which includes multiple sets of lifting rings 3, sliding grooves 33 opened on the outer wall of the fixing ring 1 and multiple connecting blocks 34, the connecting blocks 34 are slidably connected to the sliding grooves 33, and the ends of the lifting rings 3 are rotatably connected to the connecting blocks 34.

[0063] Through the above technical solution, in order to facilitate suspension, the lifting ring 3 is fixedly connected to the fixing ring 1 through the connecting block 34, and the lifting ring 3 can be suspended at any angle.

[0064] Furthermore, a positioning column 31 is fixedly provided at one end of the lifting ring 3 close to the fixing ring 1 , and a positioning hole 32 is opened on the outer peripheral wall of the fixing ring 1 . The positioning hole 32 is located at the top side of the sliding groove 33 , and the positioning column 31 is selectively inserted into the positioning hole 32 .

[0065] Through the above technical solution, since the connecting block 34 is slidably connected to the fixing ring 1, in order to prevent slipping during the suspension process, the positioning column 31 is inserted into the positioning hole 32 during suspension, thereby avoiding sliding of the connecting block 34.

[0066] The working principle of the pile structure positioning device of the present invention is:

[0067] After the fixing ring 1 is placed on the top of the steel cage by the suspension device, the middle position of the top view cross section of the steel cage is manually determined (using a measuring instrument, ruler, etc.), and then the positioning ring 2 is accurately adjusted by adjusting the cylinder 18 to determine that the positioning ring 2 is in the middle position of the top view cross section of the steel cage, and the local resonance unit is started to be lowered. After the local resonance unit is slowly lowered into the steel cage, concrete is poured from the side of the excavated groove. When the bottom is filled with concrete, the cylinders are called back and the pile structure positioning device is separated from the steel cage by the suspension device.

[0068] Embodiment 2

[0069] This embodiment discloses a method for forming a pile structure with a local resonance unit, using the pile structure positioning device with a local resonance unit in the first embodiment, and the method includes:

[0070] S10: Use a drilling machine to dig the weak soil layer to form an excavation groove;

[0071] S20: first lower the sleeve toward the notch of the excavated groove, and then lower the steel cage;

[0072] S30: After the pile structure positioning device is arranged toward the notch of the excavated groove, the matching multiple groups of local resonance units are positioned to the inner center of the steel cage by the pile structure positioning device with the local resonance unit;

[0073] S40: pouring concrete towards the steel cage, and after the pouring is completed, removing the sleeve and the pile structure positioning device with the local resonance unit;

[0074] S50: After the concrete solidifies, the construction is completed.

[0075] Compared with the existing technology, the method of the present invention can be widely applied to different geological conditions, has strong adaptability and flexibility, and at the same time, has long-term vibration reduction effect and environmental protection and energy-saving benefits.

[0076] Embodiment 3

[0077] like Figure 4 As shown, this embodiment discloses a pile structure with a local resonance unit, which is applied to the forming construction method of the pile structure with a local resonance unit in the second embodiment. The pile structure includes a steel cage and a concrete structure that is solidified after pouring.

[0078] like Figure 5-Figure 6 As shown, the pile structure with local resonance units also includes multiple groups of local resonance units arranged inside the steel cage, each group of local resonance units includes a cylindrical sleeve 4 and multiple vertically connected vibration damping strips. Each vibration damping strip includes a cylindrical steel shell 41, a concrete scatterer 43 and a sealing pad 42, the concrete scatterer 43 is arranged inside the cylindrical steel shell 41, and the sealing pad 42 is arranged at both ends of the cylindrical steel shell 41. The cylindrical sleeve 4 wraps at least one group of vibration damping strips.

[0079] Compared with the prior art, the present invention blocks low-frequency noise by setting a local resonance unit inside the engineering pile. Specifically, when external vibration is transmitted to the engineering pile, such as low-frequency resonance from the subway, the concrete scatterer 43 inside the local resonance unit can effectively block the transmission of vibration waves in the low frequency band, thereby overcoming the problems of the prior art and improving the safety and comfort of buildings around the subway.

[0080] Preferably, both ends of the cylindrical steel shell 41 are inclined surfaces, and the bottom end inclined surface of the cylindrical steel shell 41 is spliced ​​to the top end inclined surface of the adjacent cylindrical steel shell 41 .

[0081] It should be explained that since the local resonance unit is composed of multiple groups of vibration-damping strips, the vibration-damping effect at the connection position is relatively low. In the present invention, the concrete scatterer 43 inside the vibration-damping strip can improve the vibration-damping effect at the connection point of each vibration-damping strip by means of mutually inclined surfaces.

[0082] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A pile structure positioning device with a local resonance unit, characterized in that: The pile structure positioning device is arranged at the notch of the excavated groove, and comprises a fixing ring (1), a positioning ring (2), a connecting plate (17), an adjusting cylinder (18) and a force-bearing plate (19); a steel cage is arranged in the excavated groove, and the fixing ring (1) is centrally arranged at the top of the steel cage; the positioning ring (2) is arranged inside the fixing ring (1), and the outer diameter of the positioning ring (2) is smaller than the inner diameter of the fixing ring (1); a plurality of connecting plates (17) are fixedly connected to the four sides of the bottom side of the positioning ring (2) and vertically extend into the depth of the excavated groove, and the adjusting cylinder (18) is arranged on the outer side wall of the connecting plate (17); the force-bearing plate (19) is arranged at the telescopic end of the adjusting cylinder (18), and the force-bearing plate (19) abuts against the inner wall of the steel cage; It also includes a placement piece (11), a connecting plate (14), a spring (15) and a guide rod (16); a plurality of placement pieces (11) are evenly arranged around the positioning ring (2); a first end of the placement piece (11) is fixedly connected to the fixing ring (1); a bottom surface of a second end of the placement piece (11) abuts against the top of the positioning ring (2) and faces the center of the positioning ring (2); two mutually spaced vertical plates (12) are arranged on the top side of the second end of the placement piece (11); the connecting plate (14) is rotatably connected between the two vertical plates (12); a middle portion of the guide rod (16) is fixedly connected to the connecting plate (14); one end of the spring (15) is fixedly connected to one end of the guide rod (16) close to the inner wall of the positioning ring (2), and the other end is fixedly connected to the inner wall of the positioning ring (2); The outer wall of the fixing ring (1) is provided with a suspension device; the suspension device comprises a plurality of suspension rings (3), a sliding groove (33) provided on the outer wall of the fixing ring (1) and a plurality of connecting blocks (34); the connecting blocks (34) are slidably connected to the sliding grooves (33); and the ends of the suspension rings (3) are rotatably connected to the connecting blocks (34).

2. The pile structure positioning device with a local resonance unit according to claim 1, characterized in that: Both ends of the guide rod (16) are rotatably connected to guide wheels (13).

3. The pile structure positioning device with a local resonance unit according to claim 1, characterized in that: Two fixed cylinders (21) are fixedly arranged on the bottom side of the fixed ring (1), the telescopic ends of the two fixed cylinders (21) are separated from each other along the same inner ring diameter of the fixed ring (1), and the telescopic ends of the fixed cylinders (21) are fixedly connected with abutment plates (22) for abutting against the wall of the excavated groove.

4. The pile structure positioning device with a local resonance unit according to claim 1, characterized in that: A positioning column (31) is fixedly provided at one end of the hanging ring (3) close to the fixing ring (1); a positioning hole (32) is opened on the outer peripheral wall of the fixing ring (1); the positioning hole (32) is located at the top side of the sliding groove (33); and the positioning column (31) is selectively inserted into the positioning hole (32).

5. A method for forming a pile structure with a local resonance unit, characterized in that: Using the pile structure positioning device with a local resonance unit according to any one of claims 1 to 4, the method comprises: S10: Use a drilling machine to dig the weak soil layer to form an excavation groove; S20: first lower the sleeve toward the notch of the excavated groove, and then lower the steel cage; S30: After the pile structure positioning device is arranged toward the notch of the excavated groove, the matching multiple groups of local resonance units are positioned at the inner center of the steel cage by the pile structure positioning device with local resonance units; S40: pouring concrete towards the steel cage, and after the pouring is completed, removing the sleeve and the pile structure positioning device with the local resonance unit; S50: After the concrete solidifies, the construction is completed.

6. The method for forming a pile structure with a local resonance unit according to claim 5, characterized in that: Each group of the local resonance units comprises a cylindrical sleeve (4) and a plurality of vertically connected vibration-damping strips; each of the vibration-damping strips comprises a cylindrical steel shell (41), a sealing gasket (42) and a concrete scatterer (43); the concrete scatterer (43) is arranged inside the cylindrical steel shell (41), and the sealing gasket (42) is arranged at two end openings of the cylindrical steel shell (41); the cylindrical sleeve (4) wraps at least one group of the vibration-damping strips.

7. The method for forming a pile structure with a local resonance unit according to claim 6, characterized in that: Both ends of the cylindrical steel shell (41) are inclined surfaces, and the bottom end inclined surface of the cylindrical steel shell (41) is spliced ​​to the top end inclined surface of the adjacent cylindrical steel shell (41).

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