An adjustable pile foundation steel pipe pile sinking guide device

Abstract

This utility model discloses an adjustable pile foundation steel pipe pile driving guide device, installed on a construction platform at the driving borehole of the steel pipe pile. The guide device includes a fixed frame and several guide boxes. The single-layer rigid fixed frame is set on the construction platform and has no translational freedom at least in the horizontal plane. At least three guide boxes are circumferentially spaced on the fixed frame and face the geometric center of the fixed frame. Each guide box includes a shell, a guide tongue, and a transmission assembly. The shell is set on the fixed frame and has no translational freedom at least in the horizontal plane. The guide tongue is slidably disposed at one end of the shell near the geometric center of the fixed frame to move in a direction closer to or away from the steel pipe pile. At least one set of guide wheels is provided at the end of the guide tongue near the steel pipe pile. The transmission assembly passes through the shell and converts its own rotation into axial movement along the sliding direction of the guide tongue. The end of the transmission assembly near the geometric center of the fixed frame is connected to the guide tongue.

Description

Technical Field

[0001] This utility model relates to the field of pile foundation engineering construction technology, and in particular to an adjustable pile foundation steel pipe pile sinking guide device. Background Technology

[0002] The verticality and positioning deviation of pile foundations directly affect the stability of the superstructure, and are particularly critical in earthquake zones or areas with high wind pressure. Currently, the increasing number of large-scale projects such as cross-sea bridges, super high-rise buildings, offshore wind power, and deep-water ports places higher demands on the construction precision of pile foundations. Furthermore, pile foundation projects often face complex construction environments such as soft soil foundations, karst landforms, underwater operations, or densely populated urban areas, posing even greater challenges to the guiding operations of pile driving.

[0003] Traditional pipe pile guiding devices have obvious limitations: (1) They use fixed orifice limits and cannot be freely adjusted, so they are easily affected by geological conditions or operational errors, resulting in the pile position deviating from the design coordinates and insufficient positioning accuracy. (2) If the pile body tilts or the position deviates during construction, the guide frame needs to be repeatedly disassembled and re-fixed, which is difficult to control and time-consuming and labor-intensive. (3) They usually adopt a double-layer structure, which is large in volume and has many components. Because they cannot be adapted to different pile diameters, they cannot be reused. Moreover, their complex structure is difficult to adapt to complex construction conditions such as underwater construction and narrow spaces. These defects make traditional guiding devices unable to meet the above-mentioned engineering construction needs.

[0004] Therefore, there is an urgent need to develop a steel pipe pile sinking guidance scheme with higher adaptability and precise control capabilities to effectively cope with the challenges of complex construction environments and meet the ever-increasing requirements for construction accuracy and efficiency. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide an adjustable pile foundation steel pipe pile sinking guide device with higher construction accuracy and engineering adaptability, so as to help improve the overall efficiency of pile foundation construction.

[0006] To address the aforementioned technical problems, this utility model provides an adjustable pile foundation steel pipe pile driving guide device, which is installed on a construction platform at the driving borehole of the steel pipe pile. The guide device includes a fixed frame and several guide boxes;

[0007] The fixed frame is a single-layer rigid structure; the fixed frame is set on the construction platform and has no translational freedom at least in the horizontal plane; at least three guide boxes are arranged circumferentially on the fixed frame; the guide boxes face the geometric center of the fixed frame;

[0008] The guide box includes a housing, a guide tongue, and a transmission assembly; the housing is disposed on the fixed frame and has no translational freedom at least in the horizontal plane; the guide tongue is slidably disposed at one end of the housing near the geometric center of the fixed frame and is configured to move toward or away from the steel pipe pile; the guide tongue is provided with at least one set of guide wheels at one end near the geometric center of the fixed frame.

[0009] The transmission assembly is installed inside the housing and is configured to convert its own rotation into axial movement along the sliding direction of the guide tongue; the end of the transmission assembly near the geometric center of the fixed frame is connected to the guide tongue.

[0010] In a preferred embodiment, the transmission assembly includes a screw, a threaded support, and a bearing; the threaded support is disposed inside the housing along the sliding direction of the guide tongue; the screw passes through the threaded support and is threadedly engaged with the threaded support; one end of the screw near the geometric center of the fixed frame is connected to the guide tongue through the bearing.

[0011] In a preferred embodiment, the fixing frame is constructed as a square.

[0012] In a preferred embodiment, the fixing frame is provided with oblique ribs at each of the four corners; at least four of the guide boxes are mounted on the ribs.

[0013] In a preferred embodiment, the threaded support includes two nuts; the two nuts are fixed at intervals along the length of the housing to define the extension direction of the screw.

[0014] In a preferred embodiment, the end of the screw away from the guide tongue is provided with a radial clearance through hole for the operating rod to pass through.

[0015] In a preferred embodiment, the system further includes a plurality of first limiting members; the plurality of first limiting members are welded at intervals to the construction platform of the steel structure along the outer periphery of the fixed frame to restrict the movement of the fixed frame in the horizontal plane.

[0016] In a preferred embodiment, a plurality of second limiting members are further included; the plurality of second limiting members are welded at intervals to the fixed frame along the outer periphery of the housing to restrict the movement of the housing in the horizontal plane.

[0017] In a preferred embodiment, a locking element is provided between the guide tongue and the housing; when the guide tongue and the housing are in a first relative position, the locking element performs a limiting engagement along the direction of separation movement.

[0018] In a preferred embodiment, the fixed frame is constructed by splicing together several steel components.

[0019] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0020] The guiding device provided by this utility model uses a telescopic and adjustable guide box to adjust the planar positioning and verticality of the steel pipe pile in real time. This not only provides precise guidance but also allows for flexible handling of unexpected situations during construction. Furthermore, the adjustability of the guide box makes the guiding device suitable for steel pipe pile construction with different diameters, thus possessing wide engineering applicability. The guide box and the fixed frame adopt a modular design, allowing for free configuration of the number and installation position of the guide boxes according to specific needs, further improving practicality and reducing configuration costs. In addition, the guiding device can be installed on the construction platform through circumferential limiting, thus allowing for overall hoisting before and after operation without repeated disassembly and assembly. This convenient feature significantly shortens the construction cycle. The guiding device adopts a simple single-layer structure, with reliable connections and easy operation and control, possessing high practical application value. Attached Figure Description

[0021] Figure 1 This is a top view schematic diagram of the guiding device (including steel pipe piles) described in the embodiments of this utility model;

[0022] Figure 2 This is a simplified schematic diagram of the internal structure of the guide box described in this embodiment of the present invention.

[0023] The markings in the diagram are as follows: 1-fixed frame, 11-rib plate, 2-guide box, 21-shell, 22-guide tongue, 221-guide wheel, 231-screw, 2311-clearance hole, 232-threaded support, 233-bearing, 24-clamp, 3-first limiting component, 4-second limiting component, 5-steel pipe pile. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] like Figures 1-2 As shown, this utility model embodiment provides an adjustable pile foundation steel pipe pile driving guide device, which is installed on the construction platform at the driving hole of the steel pipe pile, including a fixed frame 1 and several guide boxes 2.

[0028] The fixed frame 1 is a single-layer rigid structure composed of several steel components welded or bolted together. Several guide boxes 2 are spaced apart circumferentially on the fixed frame 1. The fixed frame 1 is configured as an equilateral triangle or a square. Correspondingly, when the fixed frame 1 is configured as an equilateral triangle, at least three guide boxes 2 are evenly distributed at the three vertices and / or the midpoints of the three sides of the fixed frame 1. It is easy to see that there can also be six guide boxes 2 in this case. When the fixed frame 1 is configured as a square, at least four guide boxes 2 are evenly distributed at the four vertices and / or the midpoints of the four sides of the fixed frame 1. Similarly, there can be eight guide boxes 2 in this case.

[0029] Since an orthogonal coordinate system is more conducive to construction positioning and on-site communication, in this embodiment, the fixed frame 1 is square. Preferably, in addition to the outer square frame, the fixed frame 1 also includes ribs 11 diagonally arranged at the four corners. Four guide boxes 2 are respectively installed on the four ribs 11 and face the geometric center of the fixed frame 1. It should be understood that the four guide boxes 2 can also be set at the midpoints of the four sides of the fixed frame 1, or extended inwards from the four vertices. In this embodiment, the fixed frame 1 is welded or bolted together from HN400 steel.

[0030] The fixed frame 1 is restricted at least in the horizontal plane, meaning it lacks translational freedom. Besides traditional fixing methods such as direct welding and embedding, this embodiment provides a more flexible fixing scheme. When the lower construction platform is a steel structure panel, the fixed frame 1 is installed on the construction platform using circumferential limiting. Specifically, after the guide device determines the installation position, several first limiting members 3 are welded at intervals along the outer periphery of the fixed frame 1 to the construction platform to restrict the movement of the fixed frame 1 in the horizontal plane. In this embodiment, the first limiting member 3 is specifically a steel plate.

[0031] The guide box 2 includes a housing 21, a guide tongue 22, and a transmission assembly. The housing 21 is mounted on the fixed frame 1 and has no translational freedom, at least in the horizontal plane. In this embodiment, to improve the turnability and replaceability of the guide box 2, the housing 21 may also use a second limiting member 4, which is mounted on the fixed frame 1 by the aforementioned circumferential limiting method; this will not be elaborated further. In addition, in some embodiments, the housing 21 is fixed to the fixed frame by spot welding; in other embodiments, the bottom of the housing 21 is welded with several horizontal ear plates, which are perforated and detachably connected to the fixed frame 1 by bolt fasteners.

[0032] The guide tongue 22 is slidably connected to one end of the housing 21 near the geometric center of the fixed frame 1. The guide tongue 22 partially extends within the housing 21 and slides towards or away from the steel pipe pile 5 under the guidance of the housing 21. Additionally, a locking member 24 is provided between the guide tongue 22 and the housing 21. When the guide tongue 22 and the housing 21 are in a first relative position, the locking member 24 provides a limiting engagement along the direction of distancing movement to prevent the guide tongue 22 from overextending and detaching from the housing 21.

[0033] like Figure 2As shown, the transmission assembly passes through the housing 21 and is configured to convert its own rotation into axial movement along the length of the housing 21, i.e., the sliding direction of the guide tongue 22. Specifically, the transmission assembly includes a screw 231, a threaded support 232, and a bearing 233. In this embodiment, the screw 231 is a mechanical screw with a diameter of 36mm. The threaded support 232 is disposed inside the housing 21 along the length of the housing 21, i.e., the sliding direction of the guide tongue 22. The screw 231 passes through the threaded support 232 and, through threaded engagement with the threaded support 232, converts its helical motion into axial movement along the length of the housing 21. The end of the screw 231 near the geometric center of the fixed frame 1 is connected to the guide tongue 22 through the bearing 233. In this way, when the screw 231 rotates under the action of external force, it drives the guide tongue 22 to axially extend and retract, causing the guide tongue 22 to abut against, push against, or retract from the outer wall of the steel pipe pile 5. The guide tongue 22 is provided with at least one set of guide wheels 221 at its end along the width direction to relieve the friction between the surface of the steel pipe pile 5 and the guide tongue 22 during the sinking process.

[0034] In this embodiment, the threaded support 232 includes two nuts. The two nuts are fixed at intervals along the length of the housing 21 to define the extension direction of the screw 231. In other embodiments, the threaded support 232 may also be a section of tubular material with internal threads. In this embodiment, the adjusting end of the screw 231, i.e., the end furthest from the guide tongue 22, has a radially provided clearance through hole 2311, allowing a worker to rotate the screw 231 by passing an operating rod through it.

[0035] The following is a brief description of the usage of the device. Based on the design drawings of the guiding device, the guiding device is fabricated as a whole in the back-end area, assembled, and then transported to the construction site for hoisting and installation. Before the steel pipe pile 5 is driven, the guiding device is hoisted to the driving hole of the steel pipe pile according to the drawings, and the installation position is finely adjusted. Then, several of the aforementioned limiting steel plates are welded to the construction platform along the outer perimeter of the fixed frame 1 to provide horizontal limiting for the guiding device. The guiding box 2 can be installed as a whole with the fixed frame 1 in the back-end area, or it can be temporarily assembled on-site. At this point, the installation of the guiding device is complete. Subsequently, a truck crane or crawler crane is used to hoist the steel pipe pile 5 to be driven into the guiding device. Surveyors set up monitoring points for the steel pipe pile 5 above the guiding device, and use measuring instruments to monitor the planar positioning and verticality of the steel pipe pile 5 in real time. If the attitude parameters of the steel pipe pile 5 do not meet the requirements, the operator will control the guide wheel 221 to interfere with and adjust the steel pipe pile 5 from the side by rotating the screw 231 until the requirements are met. Then, the four sets of guide boxes 2 will jointly push against the steel pipe pile 5 to lock its attitude. It should be understood that this process is completed synchronously by multiple sets of guide boxes 2. By using the above method to adjust the planar positioning and verticality of the steel pipe pile 5 in real time, the steel pipe pile 5 will be gradually driven until it reaches the design elevation.

[0036] In summary, the guiding device provided in this embodiment uses a telescopically adjustable guide box to adjust the planar positioning and verticality of the steel pipe pile in real time. This not only provides precise guidance but also allows for flexible handling of unexpected situations during construction. Furthermore, the adjustability of the guide box makes the guiding device suitable for steel pipe pile construction with different diameters, thus possessing wide engineering applicability. The guide box and the fixed frame adopt a modular design, allowing for free configuration of the number and installation position of the guide boxes according to specific needs, further improving practicality and reducing configuration costs. In addition, the guiding device can be installed on the construction platform through circumferential limiting, allowing for overall hoisting before and after operation without repeated disassembly and reassembly. This convenient feature significantly shortens the construction cycle. The guiding device adopts a simple single-layer structure, with reliable connections and easy operation and control, possessing high practical application value.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Any technically equivalent modifications made based on the content of this specification shall fall within the protection scope of the present invention.

Claims

1. An adjustable pile foundation steel pipe pile sinking guide device, which is installed on a construction platform of a steel pipe pile sinking opening, characterized in that: Includes a fixed frame and several guide boxes; The fixed frame is a single-layer rigid structure; the fixed frame is set on the construction platform and has no translational freedom at least in the horizontal plane; at least three guide boxes are arranged circumferentially on the fixed frame; the guide boxes face the geometric center of the fixed frame; The guide box includes a housing, a guide tongue, and a transmission assembly; the housing is disposed on the fixed frame and has no translational freedom at least in the horizontal plane; the guide tongue is slidably disposed at one end of the housing near the geometric center of the fixed frame and is configured to move toward or away from the steel pipe pile; the guide tongue is provided with at least one set of guide wheels at one end near the geometric center of the fixed frame. The transmission assembly is installed inside the housing and is configured to convert its own rotation into axial movement along the sliding direction of the guide tongue; the end of the transmission assembly near the geometric center of the fixed frame is connected to the guide tongue.

2. The adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: The transmission assembly includes a screw, a threaded support, and a bearing; The threaded support is disposed inside the housing along the sliding direction of the guide tongue; the screw passes through the threaded support and is threadedly engaged with the threaded support; the end of the screw near the geometric center of the fixed frame is connected to the guide tongue through the bearing.

3. The adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: The fixed frame is constructed as a square.

4. The adjustable pile foundation steel pipe pile driving guide device according to claim 3, characterized in that: The fixed frame is provided with oblique ribs at each of the four corners; at least four of the guide boxes are mounted on the ribs.

5. The adjustable pile foundation steel pipe pile driving guide device according to claim 2, characterized in that: The threaded support includes two nuts; the two nuts are fixed at intervals along the length of the housing to define the extension direction of the screw.

6. The adjustable pile foundation steel pipe pile driving guide device according to claim 2, characterized in that: The end of the screw away from the guide tongue has a radial clearance through hole for the operating rod to pass through.

7. The adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: It also includes a plurality of first limiting members; the plurality of first limiting members are welded at intervals to the construction platform of the steel structure along the outer periphery of the fixed frame to restrict the movement of the fixed frame in the horizontal plane.

8. The adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: It also includes a number of second limiting members; the number of second limiting members are welded at intervals to the fixed frame along the outer periphery of the housing to restrict the movement of the housing in the horizontal plane.

9. The adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: A locking element is provided between the guide tongue and the housing; when the guide tongue and the housing are in a first relative position, the locking element limits their movement along the direction of separation.

10. An adjustable pile foundation steel pipe pile driving guide device according to claim 1, characterized in that: The fixed frame is constructed by splicing together several steel components.

Images