Pile head device of vibration gravel pile machine suitable for surface hard shell soil
By designing a pile head device for vibrating stone gravel pile machine suitable for soil of surface hard shell, the combined structure of the wing plate and the introduction part is used to solve the problems of high construction difficulty and low efficiency, and the effect of improving pile formation capacity and construction efficiency is achieved.
Patent Information
- Application Number
- CN202421270516.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-05
AI Technical Summary
When constructing gravel piles on site with hard surface soil on local strata, it is difficult to drill the pile machine. The initial pile head has a large contact area with the soil layer, which is not easy to break through the hard soil layer, and the pile formation capacity is poor and the construction efficiency is low.
A pile head device for vibrating stone gravel pile machine suitable for soil in surface hard shell layer is designed, including pile pipes, wing plates evenly arranged on the outer periphery of pile pipes and introduction parts. The introduction part consists of a fixed plate, a rotating shaft and a movable plate. The movable plate is driven in a closed or open state through the rotating shaft, which enhances the impact capability of the pile head.
By expanding the contact area of the pile head, the contact resistance between the pile head and the soil layer is reduced, the pile forming capacity and construction efficiency are improved, the impact capacity of the pile machine on the hard soil layer is enhanced, and the construction cost and difficulty are reduced.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gravel piles in civil engineering, in particular to a pile head device of a vibrating gravel pile machine suitable for surface hard crust soil. Background Art
[0002] Gravel piles are composite foundation reinforcement piles made of gravel (pebbles) as the main material. Gravel piles and sand piles are collectively referred to as loose piles or coarse granular soil piles abroad. The so-called loose piles refer to piles without bonding strength. The composite foundation composed of loose piles such as gravel columns or sand piles and soil between piles can also be called loose pile composite foundation. The composite foundations such as gravel piles, sand piles, and slag piles that are widely used at home and abroad are all loose pile composite foundations.
[0003] Vibrated gravel piles are composite foundations that do not have a significant drainage, consolidation, or densification effect on the soil between the piles. Instead, the gravel piles replace the original foundation soil, allowing the gravel body to play a reinforcing role in the original foundation soil. The pile body is stiffer than the surrounding soil, so that the foundation stress is concentrated on the gravel piles, thereby reducing the additional stress on the soil around the piles, improving the bearing capacity of the entire composite foundation, and reducing compressibility.
[0004] However, in the process of constructing gravel piles in sites with hard surface soil in local strata, it is difficult to drill and construct gravel piles using a pile driver. The initial contact area between the pile head and the soil layer is large, making it difficult to break through the hard soil layer. The pile-forming ability is poor, and the construction efficiency is greatly reduced. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a pile head device of a vibrating stone pile machine suitable for surface hard crust soil, which improves the pile forming ability and construction efficiency.
[0006] The utility model provides a pile head device of a vibrating stone crushing pile machine suitable for surface hard crust soil, comprising:
[0007] Pile pipe;
[0008] Wing plates, the wing plates are evenly arranged on the outer circumference of the pile pipe;
[0009] The introduction part includes two fixed plates, a rotating shaft and two movable plates. The two fixed plates are relatively arranged on the outer wall of the pile pipe, and one end extends out of the bottom of the pile pipe. The two ends of the rotating shaft respectively penetrate the two fixed plates. The two movable plates are symmetrically arranged and hinged with the rotating shaft to cover the bottom pipe opening of the pile pipe. When drilling, the two movable plates are driven by the rotating shaft to be in a closed state. When lifting the pile pipe, the two movable plates are in an open state due to the pressure provided by the gravel inside the pile pipe.
[0010] Optionally, the bottom of the pile pipe is cut at 45° with the rotating shaft as the center to form an opening that can be covered by the movable plate.
[0011] Optionally, the ends of the two movable plates are each provided with a connecting pipe, and the connecting pipe is hinged to the rotating shaft;
[0012] The connecting pipe is a hollow steel pipe with an inner diameter of 40 mm and a length of 96 mm.
[0013] Optionally, sixteen wing panels are provided, the material of the wing panels is Q355 steel plate, the thickness is 20 mm, the cross-section of the wing panels is an isosceles trapezoid, the upper base length of the wing panels is 150 mm, the lower base length is 350 mm, and the height is 80 mm.
[0014] Optionally, the fixing plate is made of Q355 steel plate with a thickness of 20 mm, a length of 400 mm and a width of 100 mm.
[0015] Optionally, the two fixing plates are symmetrically provided with openings, and both ends of the rotating shaft pass through the two openings respectively. The two openings are both arranged at a position 100 mm upward from the bottom of the fixing plate, and have a diameter of 38 mm.
[0016] Optionally, the diameter of the rotating shaft is 36 mm and the length is 520 mm.
[0017] Optionally, the upper edges of the two movable plates are straight lines, the left and right edges are arranged in parallel and are both straight line segments, and the lower edges are arc segments;
[0018] The movable plate is made of Q355 steel plate with a thickness of 20 mm and a length of 340 mm. The straight section is 170 mm long and the arc section is 170 mm long.
[0019] Compared with the prior art, the technical solution provided by the embodiment of the utility model has the following beneficial effects:
[0020] The pile head device of the vibrating stone crushing pile driver suitable for the surface hard crust soil provided by the embodiment of the utility model realizes the effect of expanding the pile head by evenly arranging wing plates on the outer periphery of the pile pipe, reduces the contact area between the pile head after expansion and the soil layer, thereby reduces the resistance of the pile head during the pile forming process, improves the pile forming capacity, and improves the ability of the pile head to impact the hard soil layer. Under the condition of using the same stone crushing pile driver, the applicability of the pile driver is further improved; by hingedly connecting the two movable plates with the rotating shaft, when the introduction part needs to penetrate the soil layer to drill a hole, the two movable plates are always in a closed state, and the two movable plates can completely cover the pipe opening at the bottom of the pile pipe. When the pile pipe needs to be lifted, gravel is added into the pile pipe at this time, and the gravel applies pressure to the two movable plates, so that the two movable plates are in an open state, and the gravel falls from the pile pipe into the stratum. When the two movable plates are no longer under pressure, the two movable plates return to the closed state to form a tip, and the pile pipe is inserted into the deep soil layer again, so that the tip formed by the two movable plates compacts the gravel. The pile head device has a simple structure, improves construction efficiency, and reduces construction cost and difficulty. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0023] Figure 1 It is a structural schematic diagram of a pile head device of a vibrating stone pile machine suitable for surface hard crust soil according to an embodiment of the utility model;
[0024] Figure 2 It is a side view of the pile head device of the vibrating stone pile machine suitable for surface hard crust soil according to the embodiment of the utility model;
[0025] Figure 3 It is a top view of the pile head device of the vibrating stone crushing pile machine suitable for surface hard crust soil according to an embodiment of the utility model.
[0026] Among them, 1. pile pipe; 2. wing plate; 3. fixed plate; 4. rotating shaft; 5. movable plate. DETAILED DESCRIPTION
[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.
[0029] Reference Figures 1 to 3 As shown, this embodiment provides a pile head device of a vibrating stone crushing pile driver suitable for surface hard crust soil, comprising a pile pipe 1, a wing plate 2 and an introduction part.
[0030] Among them, the wing plates 2 are evenly arranged on the outer periphery of the pile pipe 1, and the introduction part includes two fixed plates 3, a rotating shaft 4 and two movable plates 5. The two fixed plates 3 are relatively arranged on the outer wall of the pile pipe 1, and one end extends out of the bottom of the pile pipe 1. The two ends of the rotating shaft 4 respectively penetrate the two fixed plates 3. The two movable plates 5 are symmetrically arranged and hinged with the rotating shaft 4 to cover the bottom pipe opening of the pile pipe 1. When drilling, the two movable plates 5 are driven by the rotating shaft 4 to be in a closed state. When lifting the pile pipe 1, the two movable plates 5 are in an open state due to the pressure provided by the gravel inside the pile pipe 1. Specifically, the pile pipe 1 is the frame of the whole device, and the wing plates 2 are arranged in a circular array and are welded to the outer periphery of the pile pipe 1 at equal intervals, thereby achieving the effect of expanding the pile head and reducing the contact area between the pile head and the soil layer after the expansion, thereby reducing the resistance of the pile head during the pile forming process, improving the pile forming capacity, and improving the ability of the pile head to impact the hard soil layer. Under the condition of using the same stone crushing pile driver, the applicability of the pile driver is further improved. The introduction part is used to penetrate the soil layer, and the two movable plates 5 are hinged to the rotating shaft 4. When the introduction part needs to penetrate the soil layer to drill a hole, the two movable plates 5 are always in the original In the initial state, that is, in the closed state, the two movable plates 5 can completely cover the pipe opening at the bottom of the pile pipe 1. When the pile pipe 1 needs to be lifted, gravel is added into the pile pipe 1, and the gravel applies pressure to the two movable plates 5, so that the two movable plates 5 are in the open state, and the gravel falls from the pile pipe 1 into the stratum. When the two movable plates 5 are no longer under pressure, the two movable plates 5 return to the initial state to form a pointed end, and the pile pipe 1 is inserted into the deep soil layer again, so that the pointed end formed by the two movable plates 5 compacts the gravel. This pile head device has a simple structure, improves construction efficiency, and reduces construction cost and difficulty.
[0031] Further, see Figure 2As shown, the bottom of the pile pipe 1 is cut at 45° with the rotating shaft 4 as the center to form an opening that can be covered by the movable plate 5. Specifically, the bottom of the pile pipe 1 is cut at 45° with the rotating shaft 4 as the center, so that the two movable plates 5 form a tip after being connected to the rotating shaft 4, which not only facilitates the pile head device to penetrate the hard soil layer, but also can realize the compaction of the gravel entering the stratum, thereby improving the pile forming ability and work efficiency.
[0032] In order to realize the connection between the movable plate 5 and the rotating shaft 4, the ends of the two movable plates 5 are provided with connecting pipes, which are hinged to the rotating shaft 4. The connecting pipe is a hollow steel pipe with an inner diameter of 40 mm and a length of 96 mm. Specifically, the connecting pipe is hinged to the rotating shaft 4 to ensure that the two movable plates 5 are always in a closed state in a natural state, so as to prevent soil from entering the pile pipe 1, so that the two movable plates 5 are unfolded to increase the contact area with the soil layer, thereby increasing the resistance of drilling.
[0033] Reference Figure 3 As shown, there are sixteen wing plates 2, the material of the wing plates 2 is Q355 steel plate, the thickness is 20mm, the cross section of the wing plates 2 is an isosceles trapezoid, the upper bottom length of the wing plates 2 is 150mm, the lower bottom length is 350mm, and the height is 80mm. Specifically, the diameter of the pile pipe 1 is 480mm, and the sixteen wing plates 2 are arranged in a circular array and welded to the outer periphery of the pile pipe 1 at equal intervals, so that the pile diameter is expanded to 560mm, achieving the effect of the enlarged pile head, reducing the contact area between the pile head after the expansion and the soil layer, thereby reducing the resistance of the pile head during the pile forming process, improving the pile forming capacity, and improving the ability of the pile head to impact the hard soil layer. Under the condition of using the same stone crushing pile driver, the applicability of the pile driver is further improved. The wing plates 2 are designed to be an isosceles trapezoid, which is convenient for reducing the friction between the pile head device and the soil when the pile head device moves up and down.
[0034] The material of the fixing plate 3 is Q355 steel plate, with a thickness of 20 mm, a length of 400 mm and a width of 100 mm.
[0035] Reference Figure 2 and Figure 3 As shown, the two fixing plates 3 are symmetrically provided with openings, and both ends of the rotating shaft 4 pass through the two openings respectively. The two openings are both arranged at a position 100 mm upward from the bottom of the fixing plate 3, and the diameter thereof is 38 mm.
[0036] The diameter of the rotating shaft 4 is 36 mm and the length is 520 mm.
[0037] To ensure that the two movable plates 5 can completely cover the pipe opening at the bottom of the pile pipe 1, the upper edges of the two movable plates 5 are straight lines, the left and right edges are parallel and are both straight line segments, and the lower edges are arc segments; the movable plates 5 are made of Q355 steel plates with a thickness of 20 mm and a length of 340 mm. The straight line segment is 170 mm long and the arc segment is 170 mm long.
[0038] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0039] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the utility model described herein.
Claims
1. A pile head device for a vibrating stone pile driver suitable for surface hard crust soil, characterized in that: include: Pile pipe (1); Wing plates (2), the wing plates (2) being evenly arranged on the outer circumference of the pile pipe (1); The introduction part comprises two fixed plates (3), a rotating shaft (4) and two movable plates (5). The two fixed plates (3) are arranged on the outer wall of the pile pipe (1) opposite to each other, and one end of the fixed plates extends out of the bottom of the pile pipe (1). The two ends of the rotating shaft (4) respectively penetrate the two fixed plates (3). The two movable plates (5) are symmetrically arranged and hinged with the rotating shaft (4) to cover the bottom pipe opening of the pile pipe (1). When drilling, the two movable plates (5) are driven by the rotating shaft (4) to be in a closed state. When lifting the pile pipe (1), the two movable plates (5) are in an open state due to the pressure provided by the gravel inside the pile pipe (1).
2. The pile head device of the vibrating stone crushing pile machine suitable for surface hard crust soil according to claim 1 is characterized in that: The bottom of the pile pipe (1) is cut at 45 degrees with the rotating shaft (4) as the center to form an opening that can be covered by the movable plate (5).
3. The pile head device of the vibrating stone pile driver suitable for surface hard crust soil according to claim 1 is characterized in that: The ends of the two movable plates (5) are each provided with a connecting pipe, and the connecting pipe is hingedly connected to the rotating shaft (4); The connecting pipe is a hollow steel pipe with an inner diameter of 40 mm and a length of 96 mm.
4. The pile head device of the vibrating stone crushing pile machine suitable for surface hard crust soil according to claim 1, characterized in that: Sixteen wing plates (2) are provided. The material of the wing plates (2) is Q355 steel plate with a thickness of 20 mm. The cross section of the wing plates (2) is an isosceles trapezoid. The upper base length of the wing plates (2) is 150 mm, the lower base length is 350 mm, and the height is 80 mm.
5. The pile head device of the vibrating stone crushing pile machine suitable for surface hard crust soil according to claim 1, characterized in that: The fixing plate (3) is made of Q355 steel plate with a thickness of 20 mm, a length of 400 mm and a width of 100 mm.
6. The pile head device of the vibrating stone crushing pile machine suitable for surface hard crust soil according to claim 1, characterized in that: The two fixing plates (3) are symmetrically provided with openings, and the two ends of the rotating shaft (4) respectively pass through the two openings. The two openings are both arranged at a position 100 mm upward from the bottom of the fixing plate (3) and have a diameter of 38 mm.
7. The pile head device of the vibrating stone pile driver suitable for surface hard crust soil according to claim 1, characterized in that: The diameter of the rotating shaft (4) is 36 mm and the length is 520 mm.
8. The pile head device of the vibrating stone pile driver suitable for surface hard crust soil according to claim 1, characterized in that: The upper edges of the two movable plates (5) are straight lines, the left and right edges are arranged in parallel and are both straight line segments, and the lower edges are arc segments; The movable plate (5) is made of Q355 steel plate with a thickness of 20 mm, a length of the upper edge of 340 mm, a length of the straight section of 170 mm, and a length of the arc section of 170 mm.