Device and method for adjusting pile position coordinates

Abstract

The invention discloses a device and method for adjusting pile position coordinates. The device comprises an outer frame which is a floatable or liftable steel structure frame and is used for providing a preliminary positioning and working platform; the inner formwork is arranged in the outer frame and used for bearing a plurality of positioning piles; the transverse adjusting mechanism is arranged between the outer frame and the inner formwork and used for driving the inner formwork and the positioning piles on the inner formwork to move in the transverse direction. The longitudinal adjusting mechanism is mounted between the transverse adjusting mechanism and the inner mold frame and used for driving the inner mold frame and the positioning piles on the inner mold frame to move in the longitudinal direction; and through cooperative action of the transverse adjusting mechanism and the longitudinal adjusting mechanism, accurate adjustment of the overall position of the multiple positioning piles is achieved. Through the cooperative working mechanism of coarse positioning of the outer frame and fine adjustment of the inner formwork, synchronous or sequential accurate positioning of the multiple pile bodies is achieved, the pile group construction efficiency is greatly improved, and the construction cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering construction technology, specifically to a device and its construction method for adjusting the coordinates of pile positions in the construction of large bridge pile foundations. Background Technology

[0002] Pile foundations are the core of a bridge's substructure, suitable for deep water, soft soil foundations, and high loads (such as long-span cable-stayed bridges and suspension bridges). Through the coordinated force distribution of multiple piles, the weight of the superstructure is dispersed to deeper, stable soil / rock layers. The core advantages of pile foundations are their strong resistance to overturning and settlement, making them widely used in cross-sea bridges, cross-river bridges, and bridge projects in complex geological conditions.

[0003] The construction of bridge pile groups is a core process in bridge foundation engineering. The driving techniques for different pile types (driven piles, bored piles, and pipe piles, etc.) vary significantly. Driven piles (precast concrete piles and sheet piles) are mostly used for cross-river / coastal bridges with uniform soil layers, while bored piles are suitable for complex geological conditions (soft soil, rock strata). Improving the efficiency of bridge pile group construction while ensuring construction accuracy, bridge foundation quality, safety, and long-term service performance is a problem that those skilled in the art are dedicated to solving, aiming to reduce bridge construction costs and improve project efficiency.

[0004] Modern large bridge pile groups typically consist of at least four individual piles. Current technology involves locating and driving each pile individually. First, the pile position is confirmed using GNSS positioning, then a vibratory hammer is used to drive the pile to the specified depth. One pile is completed before moving on to the next. The specific process of the existing GNSS positioning method using pile driving vessels is as follows: Equipment configuration: A piling vessel equipped with a Leica GNSS system was selected, a base station was set up on the shore, and three GNSS receivers were arranged on the deck of the vessel to acquire the three-dimensional coordinates of the vessel in real time. Dynamic calibration: The receiver transmits coordinate data to the piling vessel control system, calculates the deviation between the actual position of the pile and the design position, displays it in real time on the screen, and the driver adjusts the hull by manipulating it. The positioning accuracy is ±10cm. Improved accuracy: With the aid of steel sleeve for positioning, a steel sleeve with a diameter of 5.5m is first installed at the pile position. Four guide limit devices are installed at the top of the sleeve. By adjusting the limit distance, the plane deviation is controlled within ±3cm.

[0005] The process of determining the location must ensure the relative positions of the piles, as well as the overall deviation between the pile group and the main line of the bridge.

[0006] While the above method can guarantee the accuracy of a single pile, it has the following significant drawbacks: 1. Each pile needs to be independently positioned and adjusted, resulting in low construction efficiency and a long construction period; 2. Controlling the overall position of the pile group relative to the main line of the bridge is difficult; 3. Significantly affected by environmental factors such as wind, waves, and water currents, the positioning process requires repeated adjustments; 4. High construction costs, especially poor economic benefits in large-scale pile group projects.

[0007] Therefore, there is an urgent need for a construction device and method that can achieve rapid overall positioning of pile groups, adapt to the construction environment on water, and ensure accuracy. Summary of the Invention

[0008] This application provides a device and method for adjusting pile position coordinates, which solves the technical problem in the prior art that each pile needs to be independently positioned and adjusted, resulting in low construction efficiency and high cost.

[0009] To address the aforementioned technical problems, this application provides a device for adjusting pile position coordinates, comprising: The outer frame is a floating or hoistable steel structure frame used to provide initial positioning and a working platform; An inner formwork frame, located inside the outer frame, is used to support multiple positioning piles; A lateral adjustment mechanism is provided between the outer frame and the inner mold frame, for driving the inner mold frame and its positioning piles to move laterally; A longitudinal adjustment mechanism is installed between the transverse adjustment mechanism and the inner mold frame, and is used to drive the inner mold frame and its positioning piles to move longitudinally. The coordinated action of the lateral adjustment mechanism and the longitudinal adjustment mechanism enables precise adjustment of the overall position of multiple positioning piles.

[0010] Preferably, the lateral adjustment mechanism includes: A transverse track is fixed to the outer frame; The traverse trolley is supported on the traverse track by a first traveling mechanism; The longitudinal adjustment mechanism includes: A longitudinal guide is provided on the transverse trolley; The second traveling mechanism is mounted on the inner mold frame and cooperates with the longitudinal guide.

[0011] Preferably, the first traveling mechanism is a lateral wheel, the longitudinal guide is a longitudinal track fixed on the lateral trolley, and the second traveling mechanism is a longitudinal wheel that cooperates with the longitudinal track.

[0012] Preferably, the first traveling mechanism is a mold frame slider, and the outer frame is provided with a transverse sliding surface that slides with the mold frame slider; The longitudinal guide is a longitudinal sliding surface disposed on the transverse trolley, and the second traveling mechanism is a longitudinal sliding block that slides in cooperation with the longitudinal sliding surface.

[0013] Preferably, the mold frame slider and / or the longitudinal slider are made of polytetrafluoroethylene material.

[0014] Preferably, the mold frame slider is connected to the transverse trolley via a slider support, and the slider support is provided with an elongated hole extending along the sliding direction, which is connected to the transverse trolley via bolts.

[0015] Preferably, the slider support is provided with an anti-jamming release hole.

[0016] Preferably, the mold frame slider and / or the longitudinal slider are provided with traction lugs for connecting the traction device.

[0017] Preferably, the device further includes a traction power system, which is one or more of a hand chain hoist, hydraulic cylinder, electric winch or linear motor, with its two ends respectively connected between the driving component and the driven component.

[0018] The present invention also provides a method for adjusting pile position coordinates, using the above-mentioned device for adjusting pile position coordinates, the method comprising the following steps: S1. Preliminary positioning: The outer frame, which is assembled with the inner formwork and multiple positioning piles, is transported as a whole to the area above the designed pile group in the construction water area and temporarily fixed. S2. Lateral fine adjustment: Operate the lateral adjustment mechanism to drive the inner mold frame and all positioning piles to move laterally until its overall lateral position reaches the design position. S3. Longitudinal fine adjustment: Operate the longitudinal adjustment mechanism to drive the inner mold frame and all positioning piles to move longitudinally until its overall longitudinal position reaches the design position. S4. Position verification: Measure the coordinates of the key positioning stakes, repeat steps S2 and S3 for fine-tuning, until the planar position accuracy of all positioning stakes meets the design requirements. S5. Installation: Drive each of the aforementioned positioning piles to the design elevation in sequence or simultaneously; S6. Relocation Construction: Release the temporary fixation of the outer frame and move it as a whole to the next set of pile positions, repeating steps S1 to S5.

[0019] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. This invention transforms the traditional repetitive positioning mode of each pile into a two-level collaborative positioning scheme of "coarse positioning of the outer frame + fine adjustment of the inner formwork frame". This avoids the tedious process of operating the ship separately for each pile and repeatedly using the GNSS system for positioning, thus improving the efficiency of pile driving operations by 4-5 times. At the same time, the rigid structure of the inner formwork frame ensures the inherent accuracy of the relative positions between all piles, and the overall adjustment eliminates the accumulation of single pile errors.

[0020] 2. In this invention, the lateral and longitudinal movement mechanisms are separated and integrated into the inner and outer frames. The purely mechanical structure of the lateral trolley and longitudinal track / slider replaces the complex electro-hydraulic control method that relies entirely on the dynamic positioning system of the piling vessel for dynamic adjustment. This solution is less affected by hydrological conditions such as wind, waves, and currents, resulting in a more stable positioning process. Furthermore, operators can control the system using a hand-operated hoist or a simple hydraulic device, lowering the technical threshold and reducing equipment dependence. It is simple to operate and has strong resistance to environmental interference.

[0021] 3. The present invention adopts a "slider sliding" moving mechanism, which uses a polytetrafluoroethylene slider and a steel rail to form a sliding pair. It has low friction, smooth movement, and high positioning accuracy. Moreover, the structure has no rotating parts, so there is almost no problem of wheel corrosion, seizing or bearing damage. It is particularly suitable for seawater and silt environments, achieving low maintenance or even no maintenance, and significantly reducing maintenance costs and time throughout the entire life cycle.

[0022] 4. An anti-jamming release hole is innovatively introduced into the slider support design. As a preset flexible deformation zone, it can absorb stress through local elastic deformation when the slider encounters abnormal resistance, allowing the slider assembly to make slight self-adjustment of its attitude. This avoids serious failures such as bolt shearing, slider breakage or track damage caused by a surge in traction force, and ensures the robustness of the system under non-ideal working conditions.

[0023] 5. The entire device can be hoisted and moved as a modular platform, thus offering macro-level benefits such as flexible construction organization, rapid site relocation, and suitability for large-scale assembly line operations. It is particularly suitable for multi-pile driving construction scenarios on water or at sea, enabling rapid and precise positioning of multiple piles. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0025] Figure 1 This is a basic schematic diagram of the device for adjusting pile position coordinates provided in Embodiment 1 of this application; Figure 2 This is a schematic diagram of the overall structure of the device for adjusting the coordinates of the pile position (using a wheel-rail type moving mechanism) provided in Embodiment 1 of this application; Figure 3for Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the overall structure of the device for adjusting pile position coordinates (using a slider sliding mechanism) provided in Embodiment 2 of this application; Figure 5 for Figure 4 A magnified view of a portion of the image; Figure 6 A schematic diagram showing the mold frame slider located at the bottom of the inner mold frame; Figure 7 This is a detailed structural diagram of the mold base slider; In the diagram: 1-Outer frame, 2-Inner mold frame, 3-Positioning pile, 4-Transverse trolley, 5-Transverse track, 6-Longitudinal track, 7-Transverse wheel, 8-Longitudinal wheel, 9-Mold frame slider, 10-Longitudinal slider, 11-Slider support, 12-Slider, 13-Anti-jamming release hole, 14-Pull ear plate.

[0026] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0027] To better understand the above technical solutions, exemplary embodiments will be described in detail below, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0028] Example 1

[0029] Figure 1 and Figure 2 This is a schematic diagram of the structure of the device for adjusting pile position coordinates provided in Embodiment 1 of this application. The device for adjusting pile position coordinates includes an outer frame 1, an inner formwork 2, a positioning pile 3, a lateral adjustment mechanism, a longitudinal adjustment mechanism, and a traction power system.

[0030] The outer frame 1 is a three-dimensional truss structure welded from steel profiles, with an overall rectangular shape or customized according to the pile group layout. Its bottom is equipped with a pontoon or can be hoisted by a floating crane for initial positioning and floating in the construction area. The outer frame 1 is equipped with a lateral guide to guide the lateral movement of the inner formwork 2.

[0031] The inner formwork 2 is located inside the outer frame and is a planar or three-dimensional frame made of steel beams. It has multiple pile holes or clamps for installing positioning piles 3. The inner formwork 2 is used to support all the positioning piles 3 to be driven and to adjust their positions as a whole.

[0032] Positioning piles 3 are precast piles or steel casings, which are fixed to the inner formwork 2 by clamps or pile holes. Their number and arrangement are consistent with the design pile group.

[0033] Combination Figure 3 and Figure 4 The lateral adjustment mechanism includes a lateral track 5 and a lateral trolley 4. The lateral track 5 is fixedly installed on both sides or the top of the outer frame 1, extending laterally as a lateral guide. The lateral trolley 4 is supported on the lateral track 5 by a first traveling mechanism and can move laterally along the lateral track 5. The first traveling mechanism is a lateral wheel 7. The lateral trolley 4 is provided with a longitudinal guide for guiding the longitudinal movement of the inner mold frame 2.

[0034] The longitudinal adjustment mechanism is used to drive the inner mold frame 2 to move longitudinally. The longitudinal adjustment mechanism includes a longitudinal track 6 fixed on the transverse trolley 4, and a second traveling mechanism installed at the bottom of the inner mold frame 2 and cooperating with the longitudinal track 6. The second traveling mechanism is a longitudinal wheel 8.

[0035] The traction power system provides power for lateral and longitudinal movement and can be a hand-operated hoist, hydraulic cylinder, electric winch, or linear drive unit. The traction system is connected to the lateral trolley 4 and the inner mold frame 2 via wire ropes, chains, or push rods.

[0036] In a preferred embodiment, the outer frame 1 is welded from large H-beams, providing sufficient buoyancy. I-beams are welded to both sides of the top of the outer frame 1 to serve as transverse tracks 5. Two transverse trolleys 4 are supported on the transverse tracks 5 by transverse wheels 7 at their bottom. Two lightweight steel rails are laid on the top surface of each transverse trolley 4 to serve as longitudinal tracks 6. The inner mold frame 2 is a grid-shaped planar steel frame with four longitudinal wheels 8 installed at its bottom, supported on the longitudinal tracks 6. The inner mold frame 2 has four pile holes located at its four corners for installing positioning piles 3. Lateral movement is achieved using two hand-operated hoists, one end of which is fixed to the end of the outer frame 1, and the other end connected to the transverse trolleys 4. Longitudinal movement is achieved using two other hand-operated hoists, one end of which is fixed to the transverse trolleys 4, and the other end connected to the inner mold frame 2.

[0037] The overall working process of the device for adjusting pile position coordinates is divided into three stages: (1) Preliminary positioning stage: S1. Preliminary positioning: The assembled outer frame 1 (with the inner formwork 2 and positioning piles 3 already installed inside) is hoisted to the approximate location of the designed pile group area using a floating crane, and temporary anchoring is carried out.

[0038] (2) Precision adjustment stage: S2. Lateral fine adjustment: First, operate the lateral traction mechanism to drive the lateral trolley 4 to move laterally along the lateral track 5, thereby adjusting the entire inner mold frame 2 and positioning pile 3 laterally to the design position.

[0039] S3. Longitudinal fine adjustment: Then operate the longitudinal traction mechanism to drive the inner mold frame 2 to move longitudinally along the longitudinal track 6 on the transverse trolley 4 to achieve longitudinal position fine adjustment.

[0040] S4. Position Verification: Monitor the coordinates of key pile positions in real time using measuring instruments (such as total station or GNSS), and repeatedly fine-tune the horizontal and vertical positions until the center coordinates of all positioning piles 3 meet the design accuracy requirements (usually the plane deviation ≤ ±3cm).

[0041] (3) Construction phase: S5. Piling Construction: After all positioning piles 3 are accurately in place, each positioning pile 3 is driven to the design elevation sequentially or simultaneously using piling equipment such as vibratory hammers and hydraulic hammers. During the driving process, the inner formwork 2 plays a guiding and stabilizing role.

[0042] S6. Relocation Construction: After completing the driving of a set of piles, release the temporary fixation of the outer frame 2, move the entire device to the next set of piles, and repeat the above process.

[0043] Example 2

[0044] The device for adjusting the pile position coordinates provided in this embodiment is largely the same as that in the previous embodiment, except for the traveling mechanism. The traveling mechanism in the first embodiment was a wheel-rail type. In this embodiment, the traveling mechanism is a slider-sliding type.

[0045] like Figures 4-6 As shown, the first traveling mechanism is a mold frame slider 9, and the outer frame 1 is provided with a transverse sliding surface that slides with the mold frame slider 9 as a transverse guide. The longitudinal guide is a longitudinal sliding surface provided on the transverse trolley 4, and the second traveling mechanism is a longitudinal sliding slider 10 that slides with the longitudinal sliding surface. The longitudinal sliding slider 10 is installed at the bottom of the inner mold frame 2.

[0046] The bottom of the transverse trolley 4 is equipped with a mold frame slider 9, which forms a sliding pair with the steel guide rail on the outer frame 1 or directly with the main steel pipe of the outer frame 1. The bottom of the inner mold frame 2 is equipped with a longitudinal slider 10, which forms a sliding pair with the longitudinal sliding surface (such as the upper surface of the steel beam) on the transverse trolley 4.

[0047] The formwork slider 9 and the longitudinal slider 10 are preferably made of polytetrafluoroethylene (PTFE). The coefficient of friction between PTFE and a clean steel surface can be as low as 0.04-0.1, which means that the required traction force (the pulling force of a hand-operated hoist) is greatly reduced when driving the inner formwork and the pile group weighing hundreds of tons for fine-tuning in the horizontal and longitudinal directions. This not only makes manual operation possible (greatly simplifying the power system and reducing costs and failure rates), but also makes the movement process smoother and more controllable, avoiding "jumping" or "jamming" caused by excessive starting torque, and facilitating millimeter-level fine position adjustments.

[0048] Meanwhile, polytetrafluoroethylene (PTFE) is an excellent solid lubricant. Its molecular structure determines that it can transfer to the grinding surface (steel track) to form an extremely thin lubricating film during sliding. In seawater and silty environments, traditional lubricating oil will quickly run off, become contaminated, or fail. PTFE sliders achieve completely dry, oil-free lubrication. This brings two major benefits: (1) Adaptability to harsh environments: It is not afraid of water erosion or silt contamination, making it very suitable for construction conditions such as at sea and in rivers. (2) Near maintenance-free: It does not require frequent refueling and maintenance during construction, reducing maintenance workload and downtime, and ensuring the continuity and efficiency of construction.

[0049] Furthermore, polytetrafluoroethylene (PTFE) is virtually unaffected by any chemical solvents and exhibits extremely high stability against acid, alkali, and salt solutions, especially being completely resistant to seawater corrosion. The salt spray environment of offshore construction is highly corrosive to metal components. Using PTFE as the sliding surface ensures that it itself will not rust, nor will corrosion products increase friction or cause jamming, guaranteeing the long-term stability of the slider's performance throughout the entire construction cycle. Simultaneously, it will not corrode the mating steel rails.

[0050] Furthermore, PTFE maintains excellent mechanical properties within a temperature range of -200°C to +250°C, and its relatively soft texture allows for moderate elastic deformation. It is suitable for all-weather construction; the slider's performance remains largely unchanged regardless of summer sun exposure or winter low temperatures. Its softness allows for slight deformation to compensate for minor unevenness or foreign objects (such as tiny weld slag or sand particles) on the track surface, preventing damage to the track or slider itself caused by hard impacts. This, together with the "anti-jamming release hole," constitutes a dual anti-jamming protection mechanism (material compliance + structural flexibility). Compared to hard metal contact, the soft contact of PTFE effectively reduces surface wear on expensive large steel tracks, protecting the main structure.

[0051] Combination Figure 7 The main body of the mold base slider 9 and the longitudinal slider 10 is semi-circular or planar. Combined with... Figure 7The slider body 12 of the longitudinal slider 10 is connected to the moving part (such as the transverse trolley 4) through the slider support 11. The slider support 11 is provided with elongated bolts to accommodate installation errors and prevent jamming. The mold frame slider 9 and / or the longitudinal slider 10 are provided with traction lugs 14 for connecting traction rigging.

[0052] Specifically, the elongated hole allows the slider support 11 to be finely adjusted within a certain range when it is bolted to the transverse trolley 4, ensuring good contact between the slider body 12 and the track (outer frame main steel pipe) and avoiding the "pre-clamping" state caused by misalignment.

[0053] The anti-jamming release hole 14 is designed to solve unforeseen jamming during dynamic sliding. The anti-jamming release hole 14 is located in the critical force-bearing area of ​​the slider support 11 (usually near the bolt holes or on the main force transmission path). Its working principle is to intentionally weaken the local rigidity at that point, forming a controllable flexible hinge or elastic deformation zone.

[0054] When the slider encounters a local obstacle during sliding, causing a sudden increase in resistance, a huge traction force is transmitted to the slider support 11 through the pull ear plate 14. If the slider support is completely rigid, this force will act directly and entirely on the connecting bolts and the slider body, which can easily lead to bolt shearing or thread damage, slider crushing or plastic deformation, and the entire system completely jamming, requiring external force to forcibly break it off. The existence of the anti-jamming release hole 13 allows the support plate to undergo slight, elastic bending or torsional deformation starting from this hole when overloaded. This deformation acts like a "buffer," absorbing impact energy and preventing stress peaks from acting directly on the bolts and slider. At the same time, it allows the slider to undergo slight self-adjustment of its posture, enabling it to "adapt" to the unevenness of the track and squeeze through or around the obstacle point. Once it slides past the obstacle point and the resistance returns to normal, the elasticity of the plate may allow it to partially return to its original shape, or at least remain in a working state without causing permanent structural damage.

[0055] In a preferred embodiment, the two main steel pipes of the outer frame 1 also serve as transverse slide rails. A PTFE (polytetrafluoroethylene) mold frame slider 9, which is semi-circular and conforms to the outer surface of the main steel pipes, is mounted on the bottom of the transverse trolley 4 via two slider supports 11. The top steel plate of the transverse trolley 4 serves as the longitudinal sliding surface. A planar longitudinal sliding slider 10 is mounted on the bottom of the inner mold frame 2 via similar supports. The traction method is the same as in Embodiment 1.

[0056] The device for adjusting pile position coordinates provided in this embodiment has low friction, moves smoothly, and has a simpler structure, requiring no additional track laying and making maintenance more convenient. It is particularly suitable for seawater environments and has good corrosion resistance.

[0057] It should be understood that although quantifiers such as "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are used merely to distinguish one unit from another. For example, without departing from the scope of the exemplary embodiments, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit.

[0058] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0061] The above description is merely a preferred embodiment of this application and does not constitute any limitation on this application in any form or substance. It should be noted that those skilled in the art can make several improvements and additions without departing from the method of this application, and these improvements and additions should also be considered within the scope of protection of this application. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of this application are equivalent embodiments of this application; furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this application still fall within the scope of the technical solution of this application.

Claims

1. A device for adjusting pile position coordinates, characterized in that, include: The outer frame (1) is a floating or hoistable steel structure frame used to provide initial positioning and working platform; The inner formwork frame (2) is located inside the outer frame (1) and is used to support multiple positioning piles (3). A lateral adjustment mechanism is provided between the outer frame (1) and the inner mold frame (2) for driving the inner mold frame (2) and its positioning piles (3) to move laterally; A longitudinal adjustment mechanism is installed between the transverse adjustment mechanism and the inner mold frame (2) to drive the inner mold frame (2) and its positioning piles (3) to move longitudinally; The overall position of multiple positioning piles (3) is precisely adjusted through the coordinated action of the lateral adjustment mechanism and the longitudinal adjustment mechanism.

2. The device for adjusting pile position coordinates as described in claim 1, characterized in that, The lateral adjustment mechanism includes: The transverse track (5) is fixed to the outer frame (1); The traverse trolley (4) is supported on the traverse track (5) by the first traveling mechanism; The longitudinal adjustment mechanism includes: A longitudinal guide is provided on the transverse trolley (4); The second traveling mechanism is mounted on the inner mold frame (2) and cooperates with the longitudinal guide.

3. The device for adjusting pile position coordinates as described in claim 2, characterized in that, The first traveling mechanism is a transverse wheel (7), the longitudinal guide is a longitudinal track (6) fixed on the transverse trolley (4), and the second traveling mechanism is a longitudinal wheel (8) that cooperates with the longitudinal track (6).

4. The device for adjusting pile position coordinates as described in claim 2, characterized in that, The first walking mechanism is a mold frame slider (9), and the outer frame (1) is provided with a transverse sliding surface that slides with the mold frame slider (9); The longitudinal guide is a longitudinal sliding surface provided on the transverse trolley (4), and the second traveling mechanism is a longitudinal sliding block (10) that slides in cooperation with the longitudinal sliding surface.

5. The device for adjusting pile position coordinates as described in claim 4, characterized in that, The mold frame slider (9) and / or the longitudinal slider (10) are made of polytetrafluoroethylene material.

6. The device for adjusting pile position coordinates as described in claim 4, characterized in that, The mold frame slider (9) is connected to the transverse trolley (4) through a slider support (11). The slider support (11) has an elongated hole extending along the sliding direction and is connected to the transverse trolley (4) by bolts.

7. The device for adjusting pile position coordinates as described in claim 6, characterized in that, The slider support (11) is provided with an anti-jamming release hole (13).

8. The device for adjusting pile position coordinates as described in claim 4, characterized in that, The mold frame slider (9) and / or the longitudinal slider (10) are provided with traction lugs (14) for connecting the traction device.

9. The device for adjusting pile position coordinates as described in any one of claims 1 to 8, characterized in that, It also includes a traction power system, which is one or more of a hand chain hoist, hydraulic cylinder, electric winch or linear motor, with its two ends connected between the driving component and the driven component, respectively.

10. A method for adjusting pile position coordinates, characterized in that, Using the device for adjusting pile position coordinates as described in any one of claims 1 to 9, the method includes the following steps: S1. Preliminary positioning: The outer frame (1), which is assembled with the inner formwork (2) and multiple positioning piles (3), is transported as a whole to the area above the designed pile group in the construction water area and temporarily fixed. S2, Lateral fine adjustment: Operate the lateral adjustment mechanism to drive the inner mold frame (2) and all positioning piles (3) to move laterally until its overall lateral position reaches the design position; S3, Longitudinal fine adjustment: Operate the longitudinal adjustment mechanism to drive the inner mold frame (2) and all positioning piles (3) to move longitudinally until its overall longitudinal position reaches the design position; S4. Position verification: Measure the coordinates of the key positioning stakes (3), repeat steps S2 and S3 for fine-tuning, until the planar position accuracy of all positioning stakes (3) meets the design requirements; S5. Installation: Drive each of the aforementioned positioning piles (3) to the design elevation in sequence or simultaneously; S6. Relocation construction: Release the temporary fixation of the outer frame (1), move it as a whole to the next set of pile positions, and repeat steps S1 to S5.

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