A scaled high-frequency vibration loading test device simulating pile driving

Abstract

The application discloses a kind of scale high-frequency vibration loading test devices of simulating pile driving, it is related to simulating pile driving device technical field.The application includes foundation, and experimental tank is opened in foundation surface;First installation hole is opened in both sides of foundation, and installation plate is movably connected on the upper surface of foundation, and second installation hole is opened in installation plate surface;Slide groove is fixed on the upper surface of installation plate, and support frame is slidably connected in slide groove interior;Crossbeam is fixed in the top of support frame, and fixed frame is fixed in the top of crossbeam, and through-hole is opened in crossbeam surface;Hydraulic cylinder is fixed in the bottom of fixed frame, and hydraulic cylinder penetrates through-hole.This application is through the effect of crossbeam, and provides strong support for subsequent engineering design and optimization by repeated experiment, and the device can simulate a variety of rolling scenes by combining different motion parameters and the size of applied load, and these scenes not only include different tire types and road conditions, but also consider the influence of soil type, humidity, temperature and other factors on rolling effect.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of simulation piling devices, in particular to a scale high-frequency vibration loading test device for simulating piling. BACKGROUND

[0002] The scale high-frequency vibration loading test device for simulating piling is an experimental equipment for simulating the high-frequency vibration pile sinking process, which can simulate the high-frequency vibration pile sinking of the model pile under laboratory conditions to study the bearing characteristics of the pile foundation in actual engineering and the soil response in the pile sinking process. The design and application of the device can be adjusted based on different research purposes, such as studying the influence of different soil, different pile type, and different vibration parameters on the pile sinking effect. Through the simulation of the high-frequency vibration pile sinking process, researchers can better understand the application effect of the high-frequency vibration pile driving technology in actual engineering, optimize the pile driving process, and improve the bearing capacity and construction efficiency of the pile foundation.

[0003] The existing experimental device can only collect data on different soil, different pile type, and other basic parameters, has a small application range, and cannot accurately simulate the mechanical behavior of the real soil layer due to the possible differences between the simulation material of the soil and the physical characteristics of the actual soil layer, and it is difficult to improve the proportioning and preparation process of the soil simulation material. SUMMARY

[0004] The purpose of the present application is to provide a scale high-frequency vibration loading test device for simulating piling, which can obtain a large amount of data on the reaction and performance of soil under different rolling conditions through repeated experiments by the action of the cross beam, and provide strong support for subsequent engineering design and optimization. The device can simulate a variety of rolling scenes by combining different motion parameters and the size of the applied load, which not only includes different tire types and road conditions, but also considers the influence of soil type, humidity, temperature, and other factors on the rolling effect. Through simulation experiments, researchers can fully understand the rolling effect of different types of vehicles on the soil under different road conditions, provide scientific basis for engineering design and optimization, and solve the problem that the existing experimental device can only collect data on different soil, different pile type, and other basic parameters, has a small application range, and cannot accurately simulate the mechanical behavior of the real soil layer due to the possible differences between the simulation material of the soil and the physical characteristics of the actual soil layer, and it is difficult to improve the proportioning and preparation process of the soil simulation material.

[0005] To achieve the above purpose, the present application provides the following technical scheme:

[0006] A scale high-frequency vibration loading test device for simulating piling, comprising a foundation, wherein the surface of the foundation is provided with an experimental groove;

[0007] The foundation has first mounting holes on both sides, and a mounting plate is movably connected to the upper surface of the foundation. The mounting plate has second mounting holes on its surface.

[0008] A sliding groove is fixed on the upper surface of the mounting plate, and a support frame is slidably connected inside the sliding groove;

[0009] A crossbeam is fixed to the top of the support frame, a fixing frame is fixed to the top of the crossbeam, and a through hole is opened on the surface of the crossbeam;

[0010] A hydraulic cylinder is fixed to the bottom of the fixing frame, and the hydraulic cylinder passes through a through hole;

[0011] The hydraulic cylinder output shaft is fixed with a connecting frame, and several limiting frames are fixed on both sides of the crossbeam;

[0012] A first motor is fixed to one side of the connecting frame, and a first bearing is fixed to both sides of the connecting frame;

[0013] The first motor output shaft is fixedly connected to one inner ring of the first bearing, and another inner ring of the first bearing is fixed with a telescopic rod.

[0014] The first motor output shaft and one end of the telescopic rod are both fixed with a fixing plate, and the surface of the fixing plate is provided with positioning holes.

[0015] A tire is bolted between the two fixing plates.

[0016] The present invention is further configured such that: a limiting groove is opened on both sides of the sliding groove, and the two limiting grooves are in the shape of an "I".

[0017] The present invention is further configured such that: a positioning plate is fixed at the bottom of the support frame, and a roller is rotatably connected inside the positioning plate;

[0018] The roller is in rolling connection with the inside of the groove.

[0019] The present invention is further configured such that: a connecting rod is fixed to one side of the positioning plate, and a limit block is fixed to the bottom of the connecting rod;

[0020] The limiting block is slidably connected to the limiting groove.

[0021] The present invention is further configured such that: a connecting plate is fixed on the upper surface of the foundation, and a second motor is fixed on one side of the connecting plate;

[0022] A support plate is fixed to the upper surface of the foundation, and a second bearing is fixed to one side of the support plate.

[0023] The present invention is further configured such that: a transmission rod is fixed to the inner ring of the second bearing, and a threaded rod is fixed to one end of the transmission rod;

[0024] The threaded rod is fixedly connected with the output shaft of the second motor at the other end.

[0025] The threaded rod is fixedly connected with the output shaft of the second motor at the other end.

[0026] The third bearing is fixedly connected with the fixed rod at the outer ring.

[0027] The third bearing is fixedly connected with the fixed rod at the outer ring.

[0028] The application has the following beneficial effects:

[0029] 1、The device can simulate a variety of rolling scenes by combining different motion parameters and the size of the applied load, which not only includes different tire types and road conditions, but also considers the influence of soil type, humidity, temperature and other factors on the rolling effect, so that researchers can fully understand the rolling effect of different types of vehicles on different road conditions, and provide a scientific basis for engineering design and optimization.

[0030] 2、The device can simulate a variety of rolling scenes by combining different motion parameters and the size of the applied load, which not only includes different tire types and road conditions, but also considers the influence of soil type, humidity, temperature and other factors on the rolling effect, so that researchers can fully understand the rolling effect of different types of vehicles on different road conditions, and provide a scientific basis for engineering design and optimization.

[0031] Of course, implementing any product of the present application does not necessarily require all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Figure 1 The structure diagram of the simulation piling scale high-frequency vibration loading test device of the present application.

[0034] Figure 2The side view angle structure schematic diagram of the present application.

[0035] Figure 3 The foundation structure schematic diagram of the present application.

[0036] Figure 4 The mounting plate structure schematic diagram of the present application.

[0037] Figure 5 The support frame structure schematic diagram of the present application.

[0038] Figure 6 The fixing frame structure schematic diagram of the present application.

[0039] In the drawings, the components represented by each reference numeral are listed as follows:

[0040] 1 - foundation, 2 - experimental tank, 3 - first mounting hole, 4 - mounting plate, 5 - second mounting hole, 6 - sliding groove, 7 - support frame, 8 - crossbeam, 9 - fixing frame, 10 - through hole, 11 - hydraulic cylinder, 12 - connecting frame, 13 - limiting frame, 14 - first motor, 15 - first bearing, 16 - telescopic rod, 17 - fixed plate, 18 - positioning hole, 19 - tire, 20 - limiting groove, 21 - positioning plate, 22 - roller, 23 - connecting rod, 24 - limiting block, 25 - connecting plate, 26 - second motor, 27 - support plate, 28 - second bearing, 29 - transmission rod, 30 - threaded rod, 31 - threaded tube, 32 - third bearing, 33 - fixed rod, 34 - movable plate, 35 - adjusting plate, 36 - threaded hole. DETAILED DESCRIPTION

[0041] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0043] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0044] Specific embodiment one, please refer to Figures 1-6This invention relates to a scaled-down high-frequency vibration loading test device for simulating pile driving, comprising a foundation 1, with an experimental groove 2 on the surface of the foundation 1; first mounting holes 3 on both sides of the foundation 1; a mounting plate 4 movably connected to the upper surface of the foundation 1, with second mounting holes 5 on the surface of the mounting plate 4; a sliding groove 6 fixed to the upper surface of the mounting plate 4, with a support frame 7 slidably connected inside the sliding groove 6; a crossbeam 8 fixed to the top of the support frame 7, with a fixing frame 9 fixed to the top of the crossbeam 8, and a through hole 10 on the surface of the crossbeam 8; and a hydraulic cylinder 11 fixed to the bottom of the fixing frame 9, the hydraulic cylinder 11 penetrating through... Through hole 10; the output shaft of hydraulic cylinder 11 is fixed with connecting frame 12, and several limiting frames 13 are fixed on both sides of crossbeam 8; a first motor 14 is fixed on one side of connecting frame 12, and a first bearing 15 is fixed on both sides of connecting frame 12; the output shaft of the first motor 14 is fixedly connected to the inner ring of one first bearing 15, and a telescopic rod 16 is fixed to the inner ring of another first bearing 15; a fixing plate 17 is fixed to one end of the output shaft of the first motor 14 and the telescopic rod 16, and a positioning hole 18 is opened on the surface of the fixing plate 17; a tire 19 is connected between the two fixing plates 17 by bolts.

[0045] The operation process of this embodiment is as follows: When the device is in use, the support frame 7 slides on the slide groove 6, and the crossbeam 8 in the center of the support frame 7 moves accordingly. When the crossbeam 8 moves on the experimental tank 2, the hydraulic cylinder 11 is opened, and the output shaft of the hydraulic cylinder 11 drives the connecting frame 12 at one end to move downward. When the connecting frame 12 moves downward, the tire 19 at its bottom contacts the soil in the experimental tank 2. At this time, the first motor 14 is opened, and the output shaft of the first motor 14 drives the tire 19 at one end to rotate. At the same time, the crossbeam 8 slides from one end of the experimental tank 2 to the other end. After combination, the movement of the tire on the soil can be simulated, and the elongation value of the output shaft of the hydraulic cylinder 11 and the rotation frequency of the output shaft of the first motor 14 are recorded. Data such as the depth of the tracks left by tires 19 on the soil in the experimental trough 2 can be obtained through repeated experiments. Researchers can acquire a large amount of data on the response and performance of soil under different compaction conditions, providing strong support for subsequent engineering design and optimization. By combining different motion parameters and the magnitude of applied loads, the device can simulate a wide variety of compaction scenarios. These scenarios not only include different tire types 19 and road conditions, but also take into account the influence of soil type, humidity, temperature and other factors on the compaction effect. Through simulation experiments, researchers can fully understand the compaction effect of different types of vehicles on soil under different road conditions, providing a scientific basis for engineering design and optimization.

[0046] For a specific embodiment two, please refer to Figures 4-5 Based on the first specific embodiment, the sliding groove 6 has limit grooves 20 on both sides, and the two limit grooves 20 have an "I" shaped structure.

[0047] Specifically, the support frame 7 is fixed with a positioning plate 21 at the bottom, and the positioning plate 21 is rotatably connected with a roller 22 inside.

[0048] Further, the positioning plate 21 is fixed with a connecting rod 23 at one side, and the connecting rod 23 is fixed with a limiting block 24 at the bottom; the limiting block 24 is slidably connected with the limiting groove 20.

[0049] The operation process of the embodiment is as follows: when the support frame 7 moves inside the sliding groove 6, the roller 22 at the bottom rolls inside the sliding groove 6; in order to avoid the support frame 7 from shaking when rolling, the connecting rod 23 and the limiting block 24 are arranged at one end of the positioning plate 21; when the roller 22 rolls inside the sliding groove 6, the limiting block 24 also slides inside the limiting groove 20; the limiting block 24 stabilizes and supports the two sides of the roller 22, so as to avoid the roller 22 from deviating inside the sliding groove 6, thereby ensuring the stability of the beam 8 when moving.

[0050] Specific embodiment three, please refer to Figures 1-3 On the basis of the specific embodiment one and the specific embodiment two, the foundation 1 is fixed with a connecting plate 25 at the upper surface, and the connecting plate 25 is fixed with a second motor 26 at one side; the foundation 1 is fixed with a support plate 27 at the upper surface, and the support plate 27 is fixed with a second bearing 28 at one side; the inner ring of the second bearing 28 is fixed with a transmission rod 29, and the transmission rod 29 is fixed with a threaded rod 30 at one end; the other end of the threaded rod 30 is fixedly connected with the output shaft of the second motor 26.

[0051] Specifically, the threaded rod 30 is threadedly connected with a threaded tube 31 at the outer ring, and the threaded tube 31 is fixed with a third bearing 32 at the outer ring; the third bearing 32 is fixed with a fixed rod 33 at the outer ring, and the fixed rod 33 is fixed with a movable plate 34 at one end.

[0052] Further, the positioning plate 21 is fixed with an adjusting plate 35 at one side, and the adjusting plate 35 and the movable plate 34 are both provided with threaded holes 36 on the surfaces.

[0053] The operation process of the embodiment is as follows: when the cross beam 8 needs to move, the movable plate 34 can be coincided with the adjusting plate 35 on one side of the positioning plate 21, and the movable plate 34 and the adjusting plate 35 are fixed by screwing into the threaded hole 36 by using a tool such as a bolt, then the second motor 26 is turned on, the output shaft of the second motor 26 drives the threaded rod 30 at one end to rotate, when the threaded rod 30 rotates, the threaded tube 31 outside the threaded rod 30 rotates, when the threaded tube 31 rotates, the threaded tube 31 outside the threaded tube 31 rotates, when the threaded tube 31 moves to one end of the threaded rod 30, the inner ring of the third bearing 32 outside the threaded tube 31 rotates with the threaded tube 31, the outer ring of the third bearing 32 remains stable and does not rotate, and drives the fixed rod 33 to move forward, thereby driving the support frame 7 to move to one end of the sliding groove 6. The device can adjust the moving speed of the cross beam 8 by adjusting the rotating speed of the second motor 26, so as to more comprehensively simulate the form speed of the tire 19.

[0054] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of the present specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A scaled high-frequency vibration loading test device simulating pile driving, comprising a foundation (1), characterized in that: The foundation (1) has an experimental trench (2) on its surface; The foundation (1) has first mounting holes (3) on both sides, and a mounting plate (4) is movably connected to the upper surface of the foundation (1). The mounting plate (4) has second mounting holes (5) on its surface. The upper surface of the mounting plate (4) is fixed with a sliding groove (6), and a support frame (7) is slidably connected inside the sliding groove (6). The support frame (7) has a crossbeam (8) fixed to its top, and a fixing frame (9) is fixed to the top of the crossbeam (8). The surface of the crossbeam (8) has a through hole (10). A hydraulic cylinder (11) is fixed at the bottom of the fixing frame (9), and the hydraulic cylinder (11) passes through the through hole (10). The output shaft of the hydraulic cylinder (11) is fixed with a connecting frame (12), and several limiting frames (13) are fixed on both sides of the crossbeam (8). A first motor (14) is fixed on one side of the connecting frame (12), and a first bearing (15) is fixed on both sides of the connecting frame (12). The output shaft of the first motor (14) is fixedly connected to the inner ring of one of the first bearings (15), and a telescopic rod (16) is fixed to the inner ring of the other first bearing (15). The output shaft of the first motor (14) and one end of the telescopic rod (16) are both fixed with a fixing plate (17), and the surface of the fixing plate (17) has a positioning hole (18). A tire (19) is bolted between the two fixing plates (17).

2. The reduced scale high frequency vibration loading test apparatus for simulating pile driving according to claim 1, wherein The slide (6) has limit grooves (20) on both sides, and the two limit grooves (20) are in the shape of an "I".

3. The scale model high frequency vibration loading test device for simulating pile driving according to claim 2, wherein The support frame (7) has a positioning plate (21) fixed at the bottom, and a roller (22) is rotatably connected inside the positioning plate (21). The roller (22) is in a rolling connection with the inside of the groove (6).

4. The scale model high frequency vibration loading test device for simulating pile driving according to claim 3, wherein A connecting rod (23) is fixed on one side of the positioning plate (21), and a limit block (24) is fixed at the bottom of the connecting rod (23). The limiting block (24) is slidably connected to the limiting groove (20).

5. The scale model high frequency vibration loading test device for simulating pile driving according to claim 4, wherein A connecting plate (25) is fixed on the upper surface of the foundation (1), and a second motor (26) is fixed on one side of the connecting plate (25). A support plate (27) is fixed on the upper surface of the foundation (1), and a second bearing (28) is fixed on one side of the support plate (27).

6. The scale model high frequency vibration loading test device for simulating pile driving according to claim 5, wherein The inner ring of the second bearing (28) is fixed with a transmission rod (29), and one end of the transmission rod (29) is fixed with a threaded rod (30). The other end of the threaded rod (30) is fixedly connected to the output shaft of the second motor (26).

7. The scale model high frequency vibration loading test device for simulating pile driving according to claim 6, wherein The threaded rod (30) is threadedly connected to a threaded tube (31) on its outer ring, and a third bearing (32) is fixed to the outer ring of the threaded tube (31). The outer ring of the third bearing (32) is fixed with a fixing rod (33), and a movable plate (34) is fixed at one end of the fixing rod (33).

8. The scale model high frequency vibration loading test device for simulating pile driving according to claim 7, wherein An adjusting plate (35) is fixed on one side of the positioning plate (21), and threaded holes (36) are opened on the surfaces of the adjusting plate (35) and the movable plate (34).

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