A pressure grouting pile with vibration and noise reduction function
Patent Information
- Application Number
- CN202521750920.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-08-18
AI Technical Summary
[0003]为克服相关技术中存在的问题，本申请提供一种具有振捣降噪功能的压浆桩，通过集成振动机构与降噪机构，在消除桩底沉渣、提升混凝土密实度的同时，还可以降低施工噪声，解决振捣设备固定与噪声控制的协同难题
[0019]本实用新型所提供的压浆桩，包括桩体、浆液输送管、振动机构及降噪机构，其中桩体与浆液输送管集成为一体，在施工过程中同步进行注浆和振捣，起到缩短单桩施工时间的目的。振动机构的振动件沿桩体轴向嵌合，在限位结构的辅助下进行侧壁固定，将振动源的振动能力直接传递至桩体，起到消除混凝土内部气泡机沉渣的作用。降噪机构的声波反射面及吸声材料层能够对振动源的高频噪声进行双重抑制，降低现场的施工噪声。
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Figure CN224902165U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of grouting pile technology, and in particular to a grouting pile with vibration noise reduction function. Background Technology
[0002] In modern construction engineering, pile foundations are widely used as an important supporting structure for buildings, with cast-in-place piles being the mainstream choice due to their convenient construction and high bearing capacity. To enhance the bearing performance of pile foundations, grouting technology is commonly adopted, injecting concrete grout into the pile hole and surrounding soil layers. However, traditional grouting piles have significant functional defects: their structural design only meets the basic function of grout delivery, lacking an active control mechanism for concrete density. During construction, due to limitations in grout fluidity or improper operation, air bubbles and voids easily form inside the concrete, significantly reducing the overall strength and durability of the pile. To solve this problem, construction workers have to use additional vibratory equipment for secondary compaction, which not only increases construction procedures and labor costs but also causes serious environmental interference due to the high-frequency noise of the vibratory equipment. Especially in densely built-up urban areas, this noise pollution often exceeds environmental standards, leading to time constraints and even complaints. Furthermore, existing vibratory equipment has poor compatibility with the pile body, low vibration energy transfer efficiency, and a lack of effective noise suppression measures, making it difficult to achieve the dual goals of efficient vibration and environmentally friendly construction. Utility Model Content
[0003] To overcome the problems existing in related technologies, this application provides a grouting pile with vibration and noise reduction function. By integrating the vibration mechanism and the noise reduction mechanism, it can eliminate the sediment at the bottom of the pile and improve the density of concrete, while also reducing construction noise and solving the problem of coordinating the fixing of vibration equipment and noise control.
[0004] This application provides a grouting pile with vibration noise reduction function, including:
[0005] The pile body and the grout delivery pipe that penetrates the pile body, wherein the pile body has a cavity that communicates with the grout delivery pipe;
[0006] A vibration mechanism includes a vibration source, a vibrating element, and a limiting structure. The vibration source is located on the outer side of the top of the pile body, and its output end is connected to the vibrating element. The vibrating element extends along the axial direction of the pile body and is attached to the side wall of the pile body through the limiting structure.
[0007] The noise reduction mechanism includes a housing and a sound-absorbing material layer disposed on the inner wall of the housing. The housing is fitted onto the top outer side of the pile and covers the vibration source. The inner wall of the housing facing the vibration source is provided with a sound wave reflecting surface.
[0008] In some embodiments, the pile body has a first grout hole on its outer periphery and a second grout hole at its bottom;
[0009] The outer periphery of the slurry delivery pipe is provided with a grouting hole coaxial with the first slurry hole, and the end of the slurry delivery pipe extends to the second slurry hole.
[0010] In some embodiments, the bottom of the pile has a tapered structure.
[0011] In some embodiments, the vibration direction of the vibrating element is perpendicular to the axis of the pile.
[0012] In some embodiments, the vibration source includes a fixed disk, a support plate, and a vibration motor symmetrically arranged on the outside of the pile body. The fixed disk is coaxial with the pile body and the slurry delivery pipe passes through the fixed disk. The support plate is connected to the fixed disk and the limiting structure respectively, and the vibration motor is arranged on the fixed disk.
[0013] In some embodiments, the outer periphery of the pile body is recessed inward to form a semi-circular groove, the semi-circular groove extending along the axial direction of the pile body, and the vibrating element is a rod adapted to the semi-circular groove.
[0014] In some embodiments, the limiting structure includes a limiting block, which is arc-shaped and has both ends located on the outer periphery of the pile body. The limiting block and the semi-circular groove surround each other to form a receiving hole, through which the vibrating element passes.
[0015] In some embodiments, the housing includes a sleeve and an alloy annular plate disposed inside the sleeve. The inner circumference of the alloy annular plate is provided with a plurality of noise-reducing grooves spaced apart, and the sound-absorbing material layer is disposed in the noise-reducing grooves.
[0016] In some embodiments, the surface of the alloy annular plate is provided with a fluorocarbon paint layer.
[0017] In some embodiments, the sound-absorbing material layer is natural latex.
[0018] The technical solution provided in this application may include the following beneficial effects:
[0019] The grouting pile provided by this utility model includes a pile body, a grout delivery pipe, a vibration mechanism, and a noise reduction mechanism. The pile body and grout delivery pipe are integrated into one unit, allowing for simultaneous grouting and vibration during construction, thus shortening the construction time for a single pile. The vibrating element of the vibration mechanism is embedded along the pile body's axial direction and fixed to the sidewalls with the assistance of a limiting structure, directly transmitting the vibration energy of the vibration source to the pile body, thereby eliminating air bubbles and sediment within the concrete. The sound wave reflecting surface and sound-absorbing material layer of the noise reduction mechanism provide dual suppression of high-frequency noise from the vibration source, reducing on-site construction noise. Attached Figure Description
[0020] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.
[0021] Figure 1 This is a schematic diagram of a grouting pile with vibration noise reduction function shown in the embodiments of this application;
[0022] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 This is another structural schematic diagram of a grouting pile with vibration noise reduction function shown in the embodiments of this application;
[0024] Figure 4 yes Figure 3 A magnified view of a portion of the image;
[0025] Figure 5 yes Figure 1 A sectional view;
[0026] Figure 6 yes Figure 1 Top view.
[0027] Figure label:
[0028] 1. Pile body; 11. First grout hole; 12. Second grout hole; 13. Semi-circular groove;
[0029] 2. Slurry delivery pipe;
[0030] 3. Vibration mechanism; 31. Vibration source; 311. Fixed plate; 312. Support plate; 313. Vibration motor; 32. Vibrating component; 33. Limiting structure;
[0031] 4. Noise reduction mechanism; 41. Housing; 411. Sleeve; 412. Alloy ring plate; 42. Sound-absorbing material layer. Detailed Implementation
[0032] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.
[0033] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0034] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0035] In the field of building pile foundation construction, grouting pile technology improves the density and bearing capacity of the pile body by pressurizing grout or concrete. However, the inventors found in quality inspection that mud-walled bored piles are prone to forming sediment at the pile bottom and mud cake on the pile side, resulting in a 20% to 40% reduction in bearing capacity. Although post-grouting technology can improve this problem by solidifying the soil through secondary grouting, it still cannot eliminate internal voids caused by insufficient vibration. In addition, conventional vibrators need to be inserted into the concrete for operation, while the vibrating motor exposed at the pile top generates high-frequency noise, which disturbs residents and violates environmental regulations, especially in urban construction.
[0036] To simultaneously address the issues of sediment, insufficient compaction, and noise pollution, this invention provides a grouting pile with integrated vibration and noise reduction functions. This solution, through the coordinated design of the vibration mechanism and the noise reduction mechanism, effectively reduces construction noise while eliminating sediment at the pile bottom and improving concrete compaction, thus overcoming the challenge of coordinating vibration equipment fixation with noise control.
[0037] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0038] like Figures 1-6 As shown, this utility model provides a grouting pile with vibration noise reduction function, including a pile body 1 and a grout delivery pipe 2 penetrating the pile body 1, wherein the pile body 1 is provided with a cavity communicating with the grout delivery pipe 2.
[0039] The vibration mechanism 3 includes a vibration source 31, a vibrating element 32 and a limiting structure 33. The vibration source 31 is located on the outer side of the top of the pile body 1, and its output end is connected to the vibrating element 32. The vibrating element 32 extends along the axial direction of the pile body 1 and is attached to the side wall of the pile body 1 through the limiting structure 33.
[0040] The noise reduction mechanism 4 includes a housing 41 and a sound-absorbing material layer 42 disposed on the inner wall of the housing 41. The housing 41 is fitted on the top outer side of the pile body 1 and covers the vibration source 31. The inner wall of the housing 41 facing the vibration source 31 is provided with a sound wave reflecting surface.
[0041] Specifically, pile body 1 is the grouting pile body, which can be made of concrete or steel. Its internal cavity is used to contain concrete grout, which is transported through grout delivery pipe 2. Grout delivery pipe 2 is a metal pipe or a high-strength plastic pipe, and its diameter can be adjusted according to actual construction needs. Vibration mechanism 3 is used to vibrate the concrete grout. The vibration source 31 can be a vibration motor 313 or a vibrator. Vibrating element 32 is used to transmit the vibration energy of vibration source 31 to pile body 1. Its material can be a metal rod or a composite material rod, and its length can be customized according to the height of pile body 1. Limiting structure 33 is used to limit the radial position of the metal rod on pile body 1 to ensure that vibrating element 32 is tightly attached to the outer periphery of pile body 1. Specifically, it can be installed and fixed to the outer periphery of pile body 1 by means of clips, bolts, and welding. Its number can be adjusted according to the height of pile body 1, and there is no single limitation here. The shell 41 is fastened to the top of the pile 1. The sound-absorbing material layer 42 on the inner wall of the shell 41 can be made of porous sound-absorbing material or fiber sound-absorbing material. The sound wave reflecting surface can be designed in an arc or slope to optimize the sound wave reflection path.
[0042] After installing the vibration and noise reduction mechanism 4, the operator inserts the pile using an external pile driving device. When the concrete grout is poured through the grout delivery pipe 2, the vibration mechanism 3 works synchronously, directly vibrating the pile body 1, ensuring the grout is fully compacted during the pouring process and eliminating voids and air bubbles. The noise reduction mechanism 4 significantly reduces the high-frequency noise from the vibration source 31.
[0043] Compared with existing technologies, this utility model integrates vibration and noise reduction functions, simplifies the construction process, eliminates the need for separate vibration in the later stage, improves work efficiency, and alleviates the problem of construction noise pollution.
[0044] To improve the grouting speed of the concrete grout, based on the above specific embodiment, a first grout hole 11 is provided on the outer periphery of the pile body 1, and a second grout hole 12 is provided at its bottom; a grout delivery pipe 2 is provided on the outer periphery of the grout delivery pipe 2, and the end of the grout delivery pipe 2 extends to the second grout hole 12. The first grout hole 11 is located on the outer periphery of the pile body 1 to allow the grout to flow out laterally from the pile body 1 during the grouting process, thereby improving the grouting speed of the concrete grout around the pile. The second grout hole 12 is located at the bottom of the pile body 1 to ensure that most of the concrete grout can flow out from the end of the pile body 1. As a preferred embodiment, the first grout holes 11 can be evenly distributed along the axial and circumferential directions of the pile body 1, with a number of 4 to 8 and a diameter of 10 to 40 mm. A conical diffuser head can be provided at the end of the grout delivery pipe 2 to promote the uniform distribution of grout at the pile end.
[0045] Furthermore, the bottom of pile body 1 has a tapered structure, which refers to a conical or truncated conical structure formed by the gradual reduction of the outer diameter of the bottom of pile body 1 along the axial direction. When pile body 1 is a steel pipe, a conical funnel can be welded to the end of the hollow cavity of pile body 1. With this configuration, the tapered structure at the end of pile body 1 can disperse the resistance to grout flow, avoid the generation of eddies at the pile tip, and thus reduce air bubble entrainment.
[0046] Furthermore, the vibration direction of the aforementioned vibrating element 32 is perpendicular to the axis of the pile body 1. The vibrating element 32 can be a metal rod or alloy rod structure, and its cross-sectional shape includes, but is not limited to, a circle, a rectangle, or a polygon. The vibrating element 32 maintains stable contact with the side wall of the pile body 1 through a limiting structure 33, which can be an arc-shaped clamping block or an elastic buckle. As a preferred embodiment, a shock-absorbing pad layer can also be provided between the vibrating element 32 and the pile body 1 to reduce wear on the contact surface. The vibration frequency range of the vibrating element 32 is preferably 50~200Hz, and the amplitude is controlled within the range of 2-5mm. The limiting structure 33 can prevent the vibrating element 32 from deflecting or displacing during operation, thereby ensuring the effective transmission of vibration energy.
[0047] Furthermore, the aforementioned vibration source 31 includes a fixed disk 311, a support plate 312, and a vibration motor 313 symmetrically arranged on the outside of the pile body 1. The fixed disk 311 is coaxial with the pile body 1 and the slurry delivery pipe 2 passes through the fixed disk 311. The support plate 312 is connected to the fixed disk 311 and the limiting structure 33 respectively. The vibration motor 313 is arranged on the fixed disk 311.
[0048] Specifically, the fixed plate 311 is made of annular steel plate, the inner diameter of which matches the outer diameter of the pile body 1. It is fixed to the end face of the pile body 1 by a bracket. The support plate 312 is an arc-shaped steel plate, and the number can be two or four. The support plates 312 are evenly distributed around the circumference of the fixed plate 311 and are welded to the outer circumference or lower surface of the fixed plate 311. The other end extends to the limiting structure 33 and is connected by bolts. There are two vibratory motors 313, which are symmetrically arranged at 180° on the upper surface of the fixed plate 311 and rigidly connected to the fixed plate 311 by a flange. As an alternative, the fixed plate 311 can adopt a split structure, which is composed of two semi-circular steel rings spliced together by high-strength bolts. In addition, the vibratory motor 313 can also be an eccentric block vibrator, whose excitation force can be steplessly adjusted by adjusting the included angle of the eccentric blocks.
[0049] Furthermore, the outer periphery of the aforementioned pile body 1 is recessed inward to form a semi-circular groove 13, the semi-circular groove 13 extends along the axial direction of the pile body 1, and the vibrating element 32 is a rod adapted to the semi-circular groove 13.
[0050] Furthermore, the aforementioned limiting structure 33 includes a limiting block, which is arc-shaped and has both ends located on the outer periphery of the pile body 1. The limiting block and the semi-circular groove 13 enclose each other to form a receiving hole, through which the vibrating element 32 passes.
[0051] Furthermore, the aforementioned housing 41 includes a sleeve 411 and an alloy annular plate 412 disposed inside the sleeve 411. The inner circumference of the alloy annular plate 412 is provided with a plurality of noise-reducing grooves distributed at intervals, and the sound-absorbing material layer 42 is disposed in the noise-reducing grooves.
[0052] Specifically, the sleeve 411 can be made of stainless steel or engineering plastic, with its inner diameter slightly larger than the outer diameter of the top of the pile 1 to facilitate sleeve installation. The alloy annular plate 412 is preferably made of aluminum alloy and is fixed to the inside of the sleeve 411 by bolts or welding. The cross-sectional shape of the noise-reducing groove can be U-shaped, V-shaped, or trapezoidal, evenly distributed along the circumference of the annular plate, with a groove depth of 5~15mm and a spacing between adjacent grooves of 1.5~2 times the groove width. The sound-absorbing material layer 42 can be made of natural latex, polyurethane foam, or mineral wool and is filled into the groove by adhesive bonding or hot pressing. As a preferred embodiment, a fluorocarbon paint layer can be added to the surface of the alloy annular plate 412 to improve corrosion resistance.
[0053] Natural latex contains a large number of interconnected microporous structures. When sound waves enter, the sound energy is converted into heat energy within the micropores through air friction and viscous resistance. As a preferred embodiment, the thickness of the natural latex layer can be controlled within the range of 5-30 mm, and the porosity is maintained between 70% and 85%. The natural latex can be bolted to the inner wall of the shell 41. In practice, by optimizing the thickness and porosity parameters of the latex layer, a noise reduction effect of approximately 15 dB can be achieved without increasing the structural weight of the shell 41. This material selection satisfies both the noise reduction requirements of the project and the requirements of green construction.
[0054] In this embodiment, a multi-layer composite noise reduction structure is constructed using sound-absorbing material 42 and an alloy annular plate 41, achieving effective sound energy dissipation. When the sound waves generated by the vibration source 31 are transmitted to the shell 41, the alloy annular plate 412 first reflects the high-frequency sound waves. The unreflected sound waves enter the noise reduction groove and undergo multiple reflections and interferences through the geometry of the groove. Simultaneously, the sound-absorbing material layer 42 converts the sound energy into heat energy. Compared with existing technologies, the multi-layer composite noise reduction structure has higher noise reduction efficiency in the same volume, and its modular design facilitates maintenance and replacement of the sound-absorbing material layer 42, solving the problems of poor vibration and noise control and difficult maintenance of traditional grouting piles.
[0055] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A grouting pile with vibration noise reduction function, characterized in that, include: The pile body (1) and the grout delivery pipe (2) penetrating the pile body (1) are provided with a cavity inside the pile body (1) that communicates with the grout delivery pipe (2); The vibration mechanism (3) includes a vibration source (31), a vibrating element (32) and a limiting structure (33). The vibration source (31) is located on the outer side of the top of the pile body (1), and its output end is connected to the vibrating element (32). The vibrating element (32) extends along the axial direction of the pile body (1) and is attached to the side wall of the pile body (1) through the limiting structure (33). The noise reduction mechanism (4) includes a housing (41) and a sound-absorbing material layer (42) disposed on the inner wall of the housing (41). The housing (41) is fitted on the top outer side of the pile (1) and covers the vibration source (31). The inner wall of the housing (41) facing the vibration source (31) is provided with a sound wave reflecting surface.
2. The grouting pile with vibration noise reduction function according to claim 1, characterized in that, The pile body (1) has a first grout hole (11) on its outer periphery and a second grout hole (12) at its bottom; The slurry delivery pipe (2) has grouting holes on its outer periphery, and the end of the slurry delivery pipe (2) extends to the second slurry hole (12).
3. The grouting pile with vibration noise reduction function according to claim 2, characterized in that, The bottom of the pile (1) has a tapered structure.
4. The grouting pile with vibration noise reduction function according to claim 1, characterized in that, The vibration direction of the vibrating element (32) is perpendicular to the axis of the pile body (1).
5. The grouting pile with vibration noise reduction function according to claim 1, characterized in that, The vibration source (31) includes a fixed plate (311), a support plate (312), and a vibration motor (313) symmetrically arranged on the outside of the pile body (1). The fixed plate (311) is coaxial with the pile body (1), and the slurry delivery pipe (2) passes through the fixed plate (311). The support plate (312) is connected to the fixed plate (311) and the limiting structure (33) respectively. The vibration motor (313) is arranged on the fixed plate (311).
6. The grouting pile with vibration noise reduction function according to claim 1, characterized in that, The outer periphery of the pile body (1) is recessed inward to form a semi-circular groove (13), the semi-circular groove (13) extends along the axial direction of the pile body (1), and the vibrating element (32) is a rod body adapted to the semi-circular groove (13).
7. The grouting pile with vibration noise reduction function according to claim 6, characterized in that, The limiting structure (33) includes a limiting block, which is arc-shaped and has both ends located on the outer periphery of the pile body (1). The limiting block and the semi-circular groove (13) surround each other to form a receiving hole, and the vibrating element (32) passes through the receiving hole.
8. The grouting pile with vibration noise reduction function according to claim 1, characterized in that, The housing (41) includes a sleeve (411) and an alloy annular plate (412) disposed inside the sleeve (411). The inner circumference of the alloy annular plate (412) is provided with a plurality of noise-reducing grooves distributed at intervals, and the sound-absorbing material layer (42) is disposed in the noise-reducing grooves.
9. The grouting pile with vibration noise reduction function according to claim 8, characterized in that, The surface of the alloy ring plate (412) is provided with a fluorocarbon paint layer.
10. The grouting pile with vibration noise reduction function according to claim 8, characterized in that, The sound-absorbing material layer (42) is natural latex.