A universal platform for measuring pile self-displacement with high strain

Abstract

The invention relates to a universal platform for self-displacement of high-strain pile measurement, comprising a base for connecting to the lower end of a guide frame for testing the vertical bearing capacity of a high-strain detection single pile, lifting support arms for adjusting the height of the base are respectively connected to both sides of the base, the base comprises an X-axis movable frame and a Y-axis movable frame, the X-axis movable frame and the Y-axis movable frame are slidably connected, and during self-displacement, the lifting displacement and horizontal displacement of the base are alternately performed. The universal platform for self-displacement of high-strain pile measurement of the invention has a simple structure, is easy to use and has a low preparation cost, can be combined with guide frames for testing the vertical bearing capacity of a high-strain detection single pile of different specifications, can drive the guide frame for testing the vertical bearing capacity of a high-strain detection single pile to be transferred to the next transfer point by controlling the automatic displacement of the universal platform, and no longer needs to rely on the transfer of an oversized automobile crane, and compared with the prior art, has stronger adaptability to the site and can reduce the transfer cost.

Description

Technical Field

[0001] The invention relates to the field of building strain testing equipment, and in particular to a universal platform for high-strain pile self-displacement testing. Background Art

[0002] At present, the vertical bearing capacity test of a single pile with high strain detection mainly uses a super-large truck crane to lift the weight and guide frame to the detection point, lift the weight to the required height through the super-large truck crane, and release it through the self-release clamp to achieve free fall of the hammer to impact the pile to be tested; after completing one detection point, continue to use the super-large truck crane to move the large equipment to the second detection point and repeat the above work process. The problems and shortcomings of the existing technology are: First, the site must be able to meet the walking, positioning and lifting requirements of the super-large truck crane; third, for complex sites, such as pile foundation engineering bearing capacity testing in deep foundation pits or large excavation sites, it is necessary to greatly increase the tonnage model of the truck crane to meet the test requirements, which greatly increases the cost of high strain testing. A large number of projects cannot perform vertical bearing capacity testing of single piles because they cannot meet the lifting requirements.

[0003] In order to solve the above problems, the present invention designs a universal platform for self-displacement of high-strain pile testing. The universal platform is combined with a high-strain detection single pile vertical bearing capacity test guide frame, which can drive the guide frame to move. After the guide frame is in place, the heavy hammer can be lifted by the hydraulic system, and the free-falling hammer impacts the tested pile to complete the on-site high-strain detection work, which greatly improves the site adaptability of on-site detection, thereby solving the problem of engineering pile bearing capacity detection after foundation pit excavation. Summary of the invention

[0004] To solve the above problems, the present invention provides a universal platform for high-strain pile self-displacement measurement. The universal platform has a simple structure and low manufacturing cost, and can greatly improve the site adaptability of on-site detection, thereby solving the problem of engineering pile bearing capacity detection after foundation pit excavation.

[0005] The technical solution adopted by the present invention is: a universal platform for self-displacement of high-strain pile measurement, including a base connected to the lower end of a high-strain detection single pile vertical bearing capacity test guide frame, both sides of the base are respectively connected with lifting support arms for adjusting the height of the base, the base includes an X-axis moving frame and a Y-axis moving frame, the X-axis moving frame and the Y-axis moving frame are slidably connected, and during self-displacement, the lifting displacement and horizontal displacement of the base are alternately performed.

[0006] Preferably, the X-axis moving frame comprises a first base frame, and the front and rear ends of the first base frame are connected to ground pad beams, and the ground pad beams are slidably connected to the bottom of the first base frame through an X-axis sliding mechanism.

[0007] Preferably, the X-axis sliding mechanism includes an X-axis automatic push rod that drives the ground pad beam and the first base frame to slide relative to each other, and the ground pad beam and the inner side and / or outer side of the first base frame are matched with a first limiting guide block.

[0008] Preferably, the Y-axis movable frame includes a second base frame, the second base frame is slidably matched with the X-axis movable frame through a second limiting guide block, and a Y-axis automatic push rod is installed on the second base frame for driving the X-axis movable frame and the Y-axis movable frame to slide relative to each other.

[0009] Preferably, the lifting support arm comprises a telescopic arm, a distal end of the telescopic arm is connected to a lifting arm, and a telescopic direction of the telescopic arm is parallel to a moving direction of the X-axis moving frame.

[0010] Preferably, sleeve beams are provided at both the front and rear ends of the Y-axis moving frame, and the telescopic arms are respectively provided at both ends of the sleeve beam. The telescopic arms include a telescopic push rod fixedly installed in the sleeve beam and a telescopic beam slidably arranged in the sleeve beam, and the driving end of the telescopic push rod is connected to the telescopic beam.

[0011] Preferably, the inner cavity of the cross beam or longitudinal beam of the X-axis moving frame and the Y-axis moving frame is equipped with an inner beam support seat, and the inner beam support seat includes a pulley seat and a support frame body connected to the pulley seat, and the pulley seat extends from the bottom hole groove of the cross beam or longitudinal beam of the X-axis moving frame and the Y-axis moving frame.

[0012] Preferably, the edges of the connection between the first base frame and the ground pad beam are provided with convex strips, and the first limiting guide block is cooperatively arranged on the convex strips at the connection between the first base frame and the ground pad beam.

[0013] Preferably, the interior of the cross beam and longitudinal beam of the X-axis moving frame and the Y-axis moving frame is hollow and provided with X support plates, dividing the interior of the cross beam and longitudinal beam of the X-axis moving frame and the Y-axis moving frame into no less than 3 inner cavities.

[0014] Preferably, the support frame body includes a base plate connected to the pulley seat, the base plate is connected to a vertical plate, and both sides of the vertical plate are respectively connected to a plurality of supporting vertical plates, and the support frame body is clamped in the inner cavity of the crossbeam or longitudinal beam of the X-axis movable frame and the Y-axis movable frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention discloses a universal platform for self-displacing high-strain pile measurement, which has the advantages of simple structure, convenient use and low preparation cost. The universal platform can be combined with a guide frame for testing the vertical bearing capacity of a high-strain single pile. The universal platform can be controlled to automatically displace to drive the guide frame for testing the vertical bearing capacity of a high-strain single pile to be transferred to the next transfer point without relying on an oversized automobile crane for transfer. Compared with the prior art, the universal platform has stronger adaptability to the site and can reduce the transfer cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the universal platform for high-strain pile self-displacement measurement of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The structure of the universal platform for high-strain pile self-displacement measurement of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 1 is a structural diagram of a longitudinal beam of an X-axis moving frame used for a high-strain pile measurement self-shifting universal platform in this embodiment;

[0020] Figure 4 This is a structural diagram of the inner beam support seat of the high-strain pile self-shifting universal platform in this embodiment;

[0021] Figure 5 Schematic diagram of the connection between the beam support seat and the crossbeam of the X-axis moving frame of the universal platform for high-strain pile self-displacement in this embodiment;

[0022] Figure 6 This is a structural perspective view of a universal platform for high-strain pile self-displacement in this embodiment;

[0023] Figure 7 Schematic diagram of the connection between the lifting support arm and the sleeve beam of the universal platform for high-strain pile self-displacement in this embodiment. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-Figure 6 The present invention provides a universal platform for self-displacement of high-strain pile measurement, including a base connected to the lower end of a guide frame for testing the vertical bearing capacity of a high-strain single pile, and lifting support arms 3 for adjusting the height of the base are respectively connected to both sides of the base. The base includes an X-axis moving frame 1 and a Y-axis moving frame 2, and the X-axis moving frame 1 and the Y-axis moving frame 2 are slidably connected. During self-displacement, the lifting displacement and horizontal displacement of the base are alternately performed.

[0028] The X-axis movable frame 1 includes a first base frame 11, and the first base frame 11 is an internally hollow frame structure. The front and rear ends of the first base frame 11 are connected with ground pads 12, and the ground pads 12 are slidably connected to the bottom of the first base frame 11 through an X-axis sliding mechanism. In detail, in this embodiment, the first base frame 11 includes two cross beams and two longitudinal beams, and the two cross beams and the two longitudinal beams are connected to form four frames, and the two ground pads 12 are respectively connected to the lower ends of the cross beams at the front and rear ends of the first base frame 11. The X-axis sliding mechanism includes an X-axis automatic push rod 13 that drives the ground pad 12 to slide relative to the first base frame 11, and the inner and outer sides of the ground pad 12 and the first base frame 11 are matched with first limiting guide blocks 14.

[0029] In this embodiment, three first limit guide blocks 14 are respectively provided on the inner and outer sides of the connection between the ground pad beam 12 and the first base frame 11, and convex strips are provided on the edges of the connection between the first base frame 11 and the ground pad beam 12. The first limit guide blocks 14 are matched with the convex strips at the connection between the first base frame 11 and the ground pad beam 12. More specifically, a guide groove is provided on the first limit guide block 14, and the convex strip cooperates with the guide groove. The first limit guide block 14 can be an "L"-shaped plate structure, a "["-shaped plate structure or an "E"-shaped plate structure. One end of the first limit guide block 14 is fixedly connected to the first base frame 11 by bolts, and the other end contacts the side surface of the ground pad beam 12. Under the thrust of the X-axis automatic push rod 13, the ground pad beam 12 and the first base frame 11 can slide relatively.

[0030] The Y-axis moving frame 2 includes a second base frame 21, and the second base frame 21 is slidably matched with the X-axis moving frame 1 through a second limiting guide block 22. A Y-axis automatic push rod 23 is installed on the second base frame 21 for driving the X-axis moving frame 1 and the Y-axis moving frame 2 to slide relative to each other. In more detail, the inner and outer edges of the connection between the second base frame 21 and the first base frame 11 are provided with convex strips, and the second limiting guide block 22 is provided with a guide groove, and the convex strip cooperates with the guide groove. The first limiting guide block 14 can be an "L"-shaped plate structure, a "["-shaped plate structure or an "E"-shaped plate structure. In this embodiment, one end of the second limiting guide block 22 is fixedly connected to the second base frame 21 by bolts, and the other end is in contact with the side surface of the first base frame 11. Under the thrust or pull of the Y-axis automatic push rod 23, the first base frame 11 and the second base frame 21 can slide relative to each other.

[0031] In detail, the second base frame 21 is an internal hollow frame structure, and the second base frame 21 includes two horizontal beams and two longitudinal beams, and the horizontal beams and the longitudinal beams are connected to form four frames, and the second limiting guide block 22 is arranged on the convex strips on the inner and outer sides of the longitudinal beams of the first base frame 11 and the second base frame 21.

[0032] refer to Figure 7The lifting support arm 3 includes a telescopic arm 31, the end of which is connected to a lifting arm 32, and the telescopic direction of the telescopic arm 31 is parallel to the moving direction of the X-axis moving frame 1. The front and rear ends of the Y-axis moving frame 2 are provided with a sleeve beam 24, and the two ends of the sleeve beam 24 are respectively provided with the telescopic arm 31, the telescopic arm 31 includes a telescopic push rod 311 fixedly installed in the sleeve beam 24 and a telescopic beam 312 slidably arranged in the sleeve beam 24, and the driving end of the telescopic push rod 311 is connected to the telescopic beam 312. In this embodiment, the lifting arm 32 is connected to the end of the telescopic beam 312, the telescopic arm 31 is perpendicular to the lifting arm 32, and the bottom of the lifting arm 32 is connected to a pad 33. The distance between the lifting arm 32 and the base can be adjusted by the telescopic arm 31, so that the universal platform can meet the requirements of engineering pile bearing capacity detection of foundation pits of different sizes.

[0033] In more detail, the X-axis automatic push rod 13, the Y-axis automatic push rod 23, the telescopic push rod 311 and the lifting arm 32 can be selected from air cylinders, electric push rods or oil cylinders.

[0034] In addition, in order to improve the carrying capacity and mobility of the universal platform, a beam support seat 4 is installed in the cross beam of the X-axis moving frame 1 and the longitudinal beam of the Y-axis moving frame 2. The beam support seat 4 includes a pulley seat 41 and a support frame body 42 connected to the pulley seat 41. The pulley seat 41 extends from the bottom hole groove of the cross beam of the X-axis moving frame 1 and the longitudinal beam of the Y-axis moving frame 2. The pulley at the bottom of the pulley seat 41 is in slidable contact with the upper end surface of the ground pad beam 12 and the upper end surface of the longitudinal beam of the first base frame 11. The support frame body 42 can enhance the strength of the cross beam of the X-axis moving frame 1 and the longitudinal beam of the Y-axis moving frame 2, and the pulley seat 41 can reduce the friction between the first base frame 11 and the ground pad beam 12, and between the second base frame 21 and the first base frame 11.

[0035] In more detail, the support frame body 42 includes a bottom plate 421 connected to the pulley seat 41, and a vertical plate 422 is connected to the bottom plate 421. No less than three supporting vertical plates 423 are respectively connected to the two sides of the vertical plate 422. The support frame body 42 is adapted to the inner cavity of the cross beam of the X-axis movable frame 1 and the inner cavity of the longitudinal beam of the Y-axis movable frame 2, and is clamped in the inner cavity of the X-axis movable frame 1 and the Y-axis movable frame 2. The bottom of the inner cavity of the support seat 4 in the beam is provided with a hole groove matching the pulley seat 41, and the pulley of the pulley seat 41 extends from the hole groove.

[0036] In addition, the interior of the cross beam and longitudinal beam of the X-axis mobile frame 1 and the Y-axis mobile frame 2 is hollow and is provided with X support plates 10, dividing the interior of the cross beam and longitudinal beam of the X-axis mobile frame 1 and the Y-axis mobile frame 2 into no less than three inner cavities, and the inner support seat 4 of the beam is arranged in one or more of the inner cavities of the cross beam or the longitudinal beam. In this embodiment, X is not less than 3, and the larger the X value is, the more support plates 10 are arranged in the cross beam and the longitudinal beam, and the higher the strength of the cross beam and the longitudinal beam is. The support plates 10 are used to enhance the strength of the cross beam and the longitudinal beam, and multiple support plates 10 can be arranged inside the cross beam and the longitudinal beam at equal or unequal intervals.

[0037] Working principle: When the self-shifting universal platform for high-strain pile measurement moves to the right, the lifting arm 32 contracts upward to make the ground pad beam 12 contact the ground, the base is pressed on the ground, and the X-axis automatic push rod 13 extends to push the first base frame 11 and the second base frame 21 to move to the right synchronously along the X-axis direction. After the first base frame 11 stops moving, the lifting arm 32 extends downward to lift the base. At this time, the ground pad beam 12 is off the ground, and the X-axis automatic push rod 13 contracts and pulls the ground pad beam 12 to move in the displacement direction of the first base frame 11. Repeating this action can automatically shift the universal platform to the right;

[0038] When the self-shifting universal platform for high-strain pile measurement moves to the left, the lifting arm 32 extends downward to lift the base. At this time, the ground mat beam 12 is off the ground, and the X-axis automatic push rod 13 extends to push the ground mat beam 12 to move to the left along the X-axis direction. After the ground mat beam 12 stops moving, the lifting arm 32 contracts upward to make the ground mat beam 12 contact the ground, and the base is pressed on the ground. The X-axis automatic push rod 13 contracts and pulls the first base frame 11 and the second base frame 21 to move to the left synchronously along the X-axis direction. Repeating this action can automatically shift the universal platform to the left.

[0039] When the universal platform for high-strain pile self-displacement moves forward, the lifting arm 32 contracts upward to make the ground cushion beam 12 contact the ground, the base is pressed on the ground, the Y-axis automatic push rod 23 extends, and pushes the second base frame 21 to move forward along the Y-axis direction. After the second base frame 21 stops moving, the lifting arm 32 extends downward to make the ground cushion beam 12 leave the ground, the Y-axis automatic push rod 23 contracts, and pulls the first base frame 11 to move in the displacement direction of the second base frame 21. Repeating this action can automatically shift the universal platform forward.

[0040] When the universal platform for high-strain pile self-displacement moves backward, the lifting arm 32 extends downward to lift the ground beam 12 off the ground, and the Y-axis automatic push rod 23 extends to push the first base frame 11 to move backward along the Y-axis direction. After the first base frame 11 stops moving, the lifting arm 32 retracts upward to make the ground beam 12 contact the ground, and the base is pressed on the ground. The Y-axis automatic push rod 23 retracts to pull the second base frame 21 to move in the displacement direction of the first base frame 11. Repeating this action can automatically shift the universal platform backward.

[0041] When the self-shifting universal platform for high-strain pile measurement changes direction, the ground pad beam 12 contacts the ground, and the base is pressed on the ground. The X-axis automatic push rod 13 arranged on the front side of the first base frame 11 pushes the first base frame 11 and the second base frame 21 to move synchronously to the left along the X-axis direction, and then the X-axis automatic push rod 13 arranged on the rear side of the first base frame 11 drives the first base frame 11 and the second base frame 21 to move synchronously to the right along the X-axis direction. Conversely, the X-axis automatic push rod 13 arranged on the front side of the first base frame 11 pushes the first base frame 11 and the second base frame 21 to move synchronously to the right along the X-axis direction, and then the X-axis automatic push rod 13 arranged on the rear side of the first base frame 11 drives the first base frame 11 and the second base frame 21 to move synchronously to the left along the X-axis direction. Similarly, by repeating this action, the universal platform can complete a 360-degree turn or change direction.

[0042] The invention discloses a universal platform for self-displacing high-strain pile measurement, which has the advantages of simple structure, convenient use and low preparation cost. The universal platform can be combined with a guide frame for testing the vertical bearing capacity of a high-strain single pile. The universal platform can be controlled to automatically displace to drive the guide frame for testing the vertical bearing capacity of a high-strain single pile to be transferred to the next transfer point without relying on an oversized automobile crane for transfer. Compared with the prior art, the universal platform has stronger adaptability to the site and can reduce the transfer cost.

[0043] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A universal platform for high-strain pile self-displacement measurement, characterized in that: The invention comprises a base, wherein both sides of the base are respectively connected with lifting support arms (3) for adjusting the height of the base, the base comprises an X-axis movable frame (1) and a Y-axis movable frame (2), the X-axis movable frame (1) and the Y-axis movable frame (2) are slidably connected, and during self-displacement, the lifting displacement and horizontal displacement of the base are performed alternately, the Y-axis movable frame (2) comprises a second base frame (21), the second base frame (21) is slidably matched with the X-axis movable frame (1) through a second limiting guide block (22), and a Y-axis automatic push rod (23) for driving the X-axis movable frame (1) and the Y-axis movable frame (2) to slide relative to each other is installed on the second base frame (21), the X-axis movable frame (1) comprises a first base frame (11), the first base The front and rear ends of the frame (11) are connected to a ground pad beam (12), and the ground pad beam (12) is slidably connected to the bottom of the first base frame (11) through an X-axis sliding mechanism. The X-axis sliding mechanism includes an X-axis automatic push rod (13) for driving the ground pad beam (12) and the first base frame (11) to slide relative to each other. The ground pad beam (12) and the inner side and / or outer side of the first base frame (11) are matched with a first limiting guide block (14). One end of the first limiting guide block (14) is fixedly connected to the first base frame (11), and the other end is in contact with the side surface of the ground pad beam (12). Under the thrust of the X-axis automatic push rod (13), the ground pad beam (12) and the first base frame (11) can slide relative to each other.

2. A universal platform for high-strain pile self-displacement measurement according to claim 1, characterized in that: The lifting support arm (3) comprises a telescopic arm (31), the end of the telescopic arm (31) is connected to a lifting arm (32), and the telescopic direction of the telescopic arm (31) is parallel to the moving direction of the X-axis moving frame (1).

3. A universal platform for high-strain pile self-displacement measurement according to claim 2, characterized in that: The front and rear ends of the Y-axis moving frame (2) are both provided with sleeve beams (24), and the two ends of the sleeve beam (24) are respectively provided with the telescopic arms (31), and the telescopic arms (31) include a telescopic push rod (311) fixedly mounted in the sleeve beam (24) and a telescopic beam (312) slidably arranged in the sleeve beam (24), and the driving end of the telescopic push rod (311) is connected to the telescopic beam (312).

4. The universal platform for high-strain pile self-displacement measurement according to claim 1, characterized in that: The inner cavities of the cross beams or longitudinal beams of the X-axis moving frame (1) and the Y-axis moving frame (2) are both equipped with inner beam support seats (4), the inner beam support seats (4) comprising a pulley seat (41) and a support frame body (42) connected to the pulley seat (41), the pulley seat (41) extending from the bottom hole groove of the cross beams or longitudinal beams of the X-axis moving frame (1) and the Y-axis moving frame (2).

5. The universal platform for high-strain pile self-displacement measurement according to claim 1, characterized in that: The edges of the connection between the first base frame (11) and the ground cushion beam (12) are provided with convex strips, and the first limiting guide block (14) is arranged on the convex strips at the connection between the first base frame (11) and the ground cushion beam (12).

6. The universal platform for high-strain pile self-displacement measurement according to claim 4, characterized in that: The interior of the cross beam and the longitudinal beam of the X-axis moving frame (1) and the Y-axis moving frame (2) is hollow and is provided with X supporting plates (10), so that the interior of the cross beam and the longitudinal beam of the X-axis moving frame (1) and the Y-axis moving frame (2) is divided into no less than three inner cavities.

7. The universal platform for high-strain pile self-displacement measurement according to claim 4, characterized in that: The support frame body (42) comprises a bottom plate (421) connected to the pulley seat (41), the bottom plate (421) is connected to a vertical plate (422), and both sides of the vertical plate (422) are respectively connected to a plurality of supporting vertical plates (423), and the support frame body (42) is clamped in the inner cavity of the crossbeam or longitudinal beam of the X-axis moving frame (1) and the Y-axis moving frame (2).

Images