Single-pile horizontal static load test device

Abstract

The invention relates to a single pile horizontal static load test device, and relates to the field of static load test technology, the single pile horizontal static load test device comprises a support plate fixed on the ground, the support plate is provided with a locking mechanism used for locking a jack, the locking mechanism comprises two support rods connected to the support plate, and the two support rods are connected to the support plate. The upper end of each supporting rod is detachably connected with a locking piece, each locking piece comprises two clamping rings which clamp the jack mutually, and the two clamping rings are connected in a fastening mode through a fastening piece. The jack supporting and locking device has the effect that jacks of different models can be conveniently supported and locked.

Description

Technical Field

[0001] This application relates to the field of static load test technology, and particularly to a single-pile horizontal static load test device. Background Art

[0002] The pile foundation is one of the most common foundation forms in engineering construction. According to relevant national standards and industry specifications, when calculating the horizontal bearing capacity of a single pile and the proportional coefficient of the horizontal resistance coefficient of the foundation soil, a single-pile horizontal static load test must be carried out. Usually, a horizontal static load test device is used to conduct the static load test on a single pile.

[0003] The horizontal static load test device in the related art includes a jack, a reaction pile, and a test pile, and also includes a support base for supporting and locking the jack. One end of the jack is fixedly connected with a first arc-shaped plate, and the other end is fixedly connected with a second arc-shaped plate. The jack is arranged horizontally, and the first arc-shaped plate abuts against the side surface of the reaction pile, and the second arc-shaped plate abuts against the side surface of the test pile. During the test, the jack is started so that the second arc-shaped plate gradually applies a thrust to the test pile, thereby conducting the test.

[0004] However, when the horizontal load required for the test exceeds the maximum rated load of the current jack, or in the case of special test requirements, such as when a special type of jack needs to be replaced for ultra-high-precision loading control, etc., different specifications of jacks need to be replaced on the support base. However, the support base usually can only support and lock one type of jack. Summary of the Invention

[0005] In order to facilitate the support and locking of jacks of different models, this application provides a single-pile horizontal static load test device.

[0006] The single-pile horizontal static load test device provided by this application adopts the following technical solutions: A single-pile horizontal static load test device includes a support plate fixed on the ground. A locking mechanism for locking a jack is installed on the support plate. The locking mechanism includes two support rods connected to the support plate. The upper end of each support rod is detachably connected with a locking member. The locking member includes two clamp rings that clamp the jack together, and the two clamp rings are tightly connected through a fastener.

[0007] By adopting the above technical solution, the jack is locked by two clamp rings in each locking member, so that the cooperation between the support plate and the locking mechanism can realize the stable locking of the jack, ensure the stability of the position of the jack during the test, reduce the occurrence of jack displacement due to external vibration or force, and thus improve the accuracy and reliability of the test data. At the same time, the design of the detachable locking member facilitates the rapid installation and removal of the locking member, so that clamp rings of different sizes can be replaced to adapt to jacks of different specifications, which is convenient for supporting and locking jacks of different models.

[0008] Preferably, a groove is formed on the upper surface of each support rod, a protrusion is fixedly connected to one of the clamp rings in the locking member, the protrusion is plugged into the corresponding groove, and the support rod and the groove are also fastened together by fasteners.

[0009] By adopting the above technical solution, the clamp ring in the locking piece is inserted into the groove on the support rod through the protrusion, and the fastening connection is achieved through the fastener. This design can enhance the connection stability between the locking piece and the support rod, reduce the occurrence of loosening or displacement of the locking piece due to external force during the horizontal static load test, and thus improve the overall reliability of the test device. At the same time, the matching structure of the groove and the protrusion helps to quickly locate and install the locking piece, simplify the operation process, and improve work efficiency.

[0010] Preferably, the lower end of each of the support rods is slidably connected to the support plate, and a control mechanism for locking the support rods and the support plate is connected to the support plate.

[0011] By adopting the above technical solution, the sliding connection between the support rod and the support plate and the locking of the support rod position by the control mechanism are realized. This solution enables the support rod to be adjusted according to actual needs, so as to adapt to jacks of different sizes or test environments, and improves the flexibility and applicability of the device. At the same time, the setting of the control mechanism ensures that the support rod can be firmly locked after being adjusted to the appropriate position, ensuring stability and safety during the test.

[0012] Preferably, two slide grooves are provided on the upper surface of the support plate, and the bottom end of each support rod is slidably connected to a corresponding slide groove. The control mechanism includes a lead screw rotatably connected in each slide groove, and each lead screw is threadedly connected to the corresponding support rod. The ends of the two lead screws facing away from each other pass through the support plate and are connected to a handwheel.

[0013] By adopting the above technical solution, the bottom end of the support rod is slidably connected to the chute on the support plate, which can flexibly adjust the position of the support rod to adapt to jacks of different sizes, improving the applicability of the device. The lead screw in the control mechanism is threadedly connected to the support rod. By rotating the lead screw, the position of the support rod can be precisely adjusted and locked. The operation is simple, stable and reliable. The setting of the handwheel facilitates the application of force and improves the convenience of the adjustment process.

[0014] Preferably, a dovetail block is fixedly connected to the bottom end of each support rod, and each dovetail block is slidably connected to the corresponding chute, and the chute is a dovetail groove.

[0015] By adopting the above technical solution, the cooperation between the dovetail block and the dovetail groove makes the support rod more stable during the sliding process, effectively reducing the situation that the support rod deviates or disengages from the chute during sliding, and improving the overall reliability of the device.

[0016] Preferably, a fixed rod is fixedly connected to one side surface of each handwheel, and the fixed rods are hinged to the corresponding lead screws. A storage groove for storing the handwheel and the fixed rod is formed on one side surface of the support plate close to each handwheel.

[0017] By adopting the above technical solution, when not in use, the handwheel can be flipped through the hinge structure between the fixed rod and the lead screw and stored in the storage groove on the side surface of the support plate. This design effectively reduces the overall volume of the device, improves the portability, and at the same time reduces the situation that the handwheel may be damaged due to its exposure.

[0018] Preferably, a plugging member is installed on each side surface of the support plate where the storage groove is formed. The plugging member includes a plugging plate slidably connected to the corresponding side surface of the support plate. One end of the plugging plate is fixedly connected to a first magnet block, and a second magnet block is fixedly connected to the side surface of the support plate where the storage groove is formed. When the first magnet block and the second magnet block adsorb each other, the plugging plate plugs the storage groove.

[0019] By adopting the above technical solution, the plugging plate is slidably connected to the support plate and the storage groove is plugged by the mutual adsorption of the first magnet block and the second magnet block, which can effectively reduce the situation that external sundries enter the storage groove and damage the handwheel and the fixed rod or affect their normal use. At the same time, the adsorption effect between the first magnet block and the second magnet block makes the plugging operation simple and convenient, without the need for an additional locking device, improving the usability of the device.

[0020] Preferably, a guiding groove is formed on one side surface of the support plate where the storage groove is formed. A guiding block is fixedly connected to one side surface of the plugging plate, and the guiding block is slidably connected to the guiding groove. A spring is arranged in the guiding groove. One end of the spring is fixedly connected to the guiding block, and the other end is fixedly connected to one side wall of the guiding groove. The storage groove is located between the guiding groove and the second magnet block.

[0021] By adopting the above technical solution, the plugging plate can slide smoothly under the cooperation of the guiding block and the guiding groove, ensuring that the plugging plate accurately plugs the receiving groove. When the first magnet block and the second magnet block adsorb each other, the spring is in a stressed state; when the first magnet block and the plugging plate are moved away from the second magnet block, the spring gradually returns to its normal state, ensuring that when the receiving groove is opened, the plugging plate can be relatively stably placed on the side of the receiving groove away from the second magnet block.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. It is convenient to replace the clamping rings of different sizes to adapt to different specifications of jacks, facilitating the support and locking of different models of jacks; 2. The support rod can be adjusted in position according to actual needs, thereby adapting to jacks of different sizes or test environments, improving the flexibility and applicability of the device; 3. It can effectively reduce the situation that external sundries enter the receiving groove and damage the handwheel and the fixing rod or affect their normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic diagram showing the overall structure of the test device in an embodiment of the present application.

[0024] Figure 2 FIG. is a schematic diagram showing the structure of the locking member in an embodiment of the present application.

[0025] Figure 3 FIG. is a schematic diagram showing the structure of the plugging member in an embodiment of the present application.

[0026] DESCRIPTION OF REFERENCE NUMERALS: 1, jack; 11, first arc-shaped plate; 12, second arc-shaped plate; 2, support plate; 21, chute; 22, receiving groove; 23, guiding groove; 3, locking mechanism; 31, support rod; 311, groove; 312, dovetail block; 32, locking member; 321, clamping ring; 33, convex block; 4, reaction pile; 5, test pile; 6, mounting bracket; 61, displacement sensor; 7, control mechanism; 71, lead screw; 72, handwheel; 73, fixing rod; 8, plugging member; 81, plugging plate; 82, guiding block; 83, spring; 84, first magnet block; 85, second magnet block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will further describe the present application in detail Figures 1 - 3 with reference to the accompanying drawings.

[0028] An embodiment of the present application discloses a single-pile horizontal static load test device. Refer to Figure 1 and Figure 2, The test device includes a jack 1 and a support plate 2 fixed to the ground by expansion bolts or anchor bolts. A locking mechanism 3 for locking the jack 1 is installed on the support plate 2. On one side of the jack 1, there is a reaction pile 4, and on the other side, there is a test pile 5. One end of the jack 1 is fixedly connected to a first arc plate 11, and the other end is fixedly connected to a second arc plate 12. The first arc plate 11 abuts against the arc side surface of the reaction pile 4, and the second arc plate 12 abuts against the arc side surface of the test pile 5.

[0029] On the side of the test pile 5 away from the jack 1, there is an installation frame 6. A displacement sensor 61 is fixedly connected to the installation frame 6. One end of the displacement sensor 61 abuts against the test pile 5 and is used to detect the displacement of the test pile 5. A pressure gauge capable of displaying the pressure applied by the jack 1 is provided on the jack 1.

[0030] The locking mechanism 3 includes two support rods 31 connected to the support plate 2. A locking member 32 is detachably connected to the upper end of each support rod 31. The locking member 32 includes two clamp rings 321 that clamp the jack 1 together. The two clamp rings 321 are arranged one above the other, and the jack 1 is located between the two clamp rings 321. Each end of the two clamp rings 321 is tightly connected by bolts and nuts.

[0031] When the jack 1 is placed between the support rods 31, the two clamp rings 321 are respectively sleeved on the jack 1 from both sides and tightly connected by bolts. At this time, the rubber cushion layer is in full contact with the surface of the jack 1, forming a stable clamping force to ensure that the jack 1 will not displace during the test. This design not only improves the positioning accuracy but also greatly simplifies the installation process and improves the work efficiency.

[0032] When it is necessary to replace the jack 1 with different specifications, the locking member 32 is disassembled and separated from the corresponding support rod 31, and then the locking member 32 adapted to the size of the jack 1 is replaced on the support frame.

[0033] A rubber cushion layer is provided on the inner side of each clamp ring 321 to protect the surface of the jack 1 and increase the friction force.

[0034] Refer to Figure 2 and Figure 3 , A groove 311 is provided on the upper surface of each support rod 31. A convex block 33 is fixedly connected to one of the clamp rings 321 in the locking member 32. The convex block 33 is tightly inserted into the corresponding groove 311, and the support rod 31 and the convex block 33 are also tightly connected by bolts and nuts. That is, the bolt passes through the support rod 31 and the convex block 33 and is tightened with a nut.

[0035] During installation, after inserting the bump 33 into the groove 311, bolts are passed through the support rod 31 and the bump 33 and locked with nuts, thereby firmly fixing the clamp ring 321 on the support rod 31. This design further improves the stability of the locking mechanism 3 and reduces the occurrence of loosening of the clamp ring 321 due to vibration or other external factors.

[0036] The lower end of each support rod 31 is slidably connected to the support plate 2, and a control mechanism 7 for locking between the support rod 31 and the support plate 2 is connected to the support plate 2.

[0037] A dovetail block 312 is fixedly connected to the bottom end of each support rod 31, and two sliding grooves 21 are formed on the upper surface of the support plate 2. The two sliding grooves 21 are located on the same straight line and are parallel to each other. Each sliding groove 21 is a dovetail groove, one dovetail block 312 corresponds to one sliding groove 21, and the dovetail block 312 is slidably connected to the sliding groove 21.

[0038] The control mechanism 7 includes a lead screw 71 rotatably connected in each sliding groove 21. Each lead screw 71 is threadedly connected to the corresponding support rod 31. One end of the two lead screws 71 facing away from each other penetrates through the support plate 2 and is connected to a handwheel 72. By rotating the handwheel 72, the lead screw 71 can drive the support rod 31 to move along the dovetail groove, thereby adjusting the position of each support rod 31 and the distance between the two support rods 31 to adapt to jacks 1 of different sizes.

[0039] A fixing rod 73 is fixedly connected to one side surface of each handwheel 72. The fixing rod 73 is hinged to the end of the lead screw 71 extending out of the sliding groove 21. A receiving groove 22 for receiving the handwheel 72 and the fixing rod 73 is formed on one side surface of the support plate 2 close to each handwheel 72.

[0040] When the position of the support rod 31 does not need to be adjusted, rotate each handwheel 72 to make the handwheel 72 and the fixing rod 73 rotate and be received into the receiving groove 22. By adding a receiving function, the problem that the handwheel 72 occupies space in the non-use state is solved, and at the same time, the overall aesthetics and portability of the device are improved.

[0041] A blocking member 8 is installed on each side surface of the support plate 2 provided with the receiving groove 22. The blocking member 8 is used to block or open the receiving groove 22.

[0042] The blocking member 8 includes a blocking plate 81 slidably connected to the corresponding side surface of the support plate 2. Each side surface of the support plate 2 provided with the receiving groove 22 is provided with a guiding groove 23. A guiding block 82 is fixedly connected to one side surface of the blocking plate 81. The guiding groove 23 is slidably connected to the guiding block 82. A spring 83 is arranged in the guiding groove 23. One end of the spring 83 is fixedly connected to the side wall of the guiding groove 23 close to the receiving groove 22, and the other end is fixedly connected to the guiding block 82.

[0043] One end of the plugging plate 81 is fixedly connected with a first magnet block 84, and a second magnet block 85 is fixedly connected to one side surface of the support plate 2 where the storage groove 22 is provided. The storage groove 22 is located between the second magnet block 85 and the guiding groove 23. Push the first magnet block 84 in the direction close to the second magnet block 85 until the first magnet block 84 and the second magnet block 85 are adsorbed to each other. At this time, the plugging plate 81 plugs the storage groove 22, and at this time the spring 83 is in a compressed state.

[0044] When it is necessary to open the storage groove 22, move the plugging plate 81 in the direction away from the second magnet block until the spring 83 is in a normal state. At this time, it is difficult for the first magnet block 84 and the second magnet block 85 to be adsorbed to each other due to the distance. At this time, the storage groove 22 is opened, which is convenient for the hand wheel 72 to rotate out of the storage groove 22.

[0045] The implementation principle of the single-pile horizontal static load test device in the embodiment of the present application is as follows: A jack 1 on the support plate 2 fixed to the ground applies a horizontal force to the test pile 5. One side of the jack 1 abuts against the reaction pile 4, and the other side abuts against the test pile 5 through the second arc-shaped plate 12, and the reaction pile 4 is used to provide the reaction force. At the same time, a displacement sensor 61 on the mounting frame 6 on the side of the test pile 5 away from the jack 1 detects the displacement of the test pile 5, and the pressure gauge on the jack 1 displays the applied pressure, so as to conduct a single-pile horizontal static load test. When it is necessary to replace the jack 1 with different specifications, disassemble and separate the locking member 32 from the support rod 31, and replace the locking member 32 adapted to the size of the jack 1 on the support frame.

[0046] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A single pile horizontal static load test device, characterized in that: The invention comprises a support plate (2) fixed on the ground, a locking mechanism (3) for locking a jack (1) being mounted on the support plate (2), the locking mechanism (3) comprising two support rods (31) connected to the support plate (2), a locking member (32) being detachably connected to the upper end of each support rod (31), the locking member (32) comprising two clamp rings (321) for clamping the jack (1) to each other, the two clamp rings (321) being fastened to each other by a fastener.

2. A single pile horizontal static load test device according to claim 1, characterized in that: A groove (311) is formed on the upper surface of each support rod (31), a protrusion (33) is fixedly connected to one of the clamp rings (321) in the locking member (32), the protrusion (33) is plugged into the corresponding groove (311), and the support rod (31) and the groove (311) are also fastened together by a fastener.

3. A single pile horizontal static load test device according to claim 1, characterized in that: The lower end of each support rod (31) is slidably connected to the support plate (2), and the support plate (2) is connected to a control mechanism (7) for locking the support rod (31) and the support plate (2).

4. A single pile horizontal static load test device according to claim 3, characterized in that: The upper surface of the support plate (2) is provided with two slide grooves (21), the bottom end of each support rod (31) is slidably connected to a corresponding slide groove (21), the control mechanism (7) comprises a lead screw (71) rotatably connected in each slide groove (21), each lead screw (71) is threadedly connected to the corresponding support rod (31), and the ends of the two lead screws (71) that are away from each other penetrate the support plate (2) and are connected to a hand wheel (72).

5. A single pile horizontal static load test device according to claim 4, characterized in that: The bottom end of each support rod (31) is fixedly connected to a dovetail block (312), and each dovetail block (312) is slidably connected to a corresponding slide groove (21), and the slide groove (21) is a dovetail groove.

6. A single pile horizontal static load test device according to claim 4, characterized in that: A fixing rod (73) is fixedly connected to one side of each hand wheel (72), and each fixing rod (73) is hinged to a corresponding lead screw (71). A receiving groove (22) for receiving the hand wheel (72) and the fixing rod (73) is provided on one side of the support plate (2) close to each hand wheel (72).

7. A single pile horizontal static load test device according to claim 6, characterized in that: Each side surface of the support plate (2) having the receiving groove (22) is provided with a blocking member (8), the blocking member (8) comprising a blocking plate (81) slidably connected to a corresponding side surface of the support plate (2), one end of the blocking plate (81) being fixedly connected to a first magnet block (84), and a side surface of the support plate (2) having the receiving groove (22) being fixedly connected to a second magnet block (85), and when the first magnet block (84) and the second magnet block (85) are attracted to each other, the blocking plate (81) blocks the receiving groove (22).

8. A single pile horizontal static load test device according to claim 7, characterized in that: The side surface of the support plate (2) on which the receiving groove (22) is provided is provided with a guide groove (23); a guide block (82) is fixedly connected to one side surface of the blocking plate (81); the guide block (82) is slidably connected to the guide groove (23); a spring (83) is provided in the guide groove (23); one end of the spring (83) is fixedly connected to the guide block (82); and the other end is fixedly connected to a side wall of the guide groove (23); the receiving groove (22) is located between the guide groove (23) and the second magnet block (85).

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