A flat plate loading test device

Abstract

The utility model relates to the technical field of flat plate load test, concretely to a flat plate load test device, including support plate, the top of support plate is provided with the article plate, the top of article plate is provided with baffle no.

Description

Technical Field

[0001] This application relates to the field of plate load testing, specifically a plate load testing device. Background Technology

[0002] The plate load test is a widely used in-situ testing method suitable for shallow foundations. This test usually involves applying a load to a rigid bearing plate of a certain size and observing the in-situ behavior of natural foundation soil under load with pressure and deformation. It can be used to determine the bearing capacity of the foundation; design the deformation modulus of the soil; estimate the undrained shear strength of the soil and the ultimate fill height.

[0003] Currently, when conducting plate load tests, the main method is to use hoisting equipment to stack concrete counterweights in layers on top of the bearing plate. However, multiple concrete blocks are prone to cumulative displacement during the stacking process, which can lead to load eccentricity and require subsequent position adjustments, thus affecting test efficiency. Utility Model Content

[0004] To address the problem of load eccentricity in existing technologies, this invention provides a plate load testing device.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows: This utility model provides a plate load testing device, characterized in that it includes: The support plate consists of two sets of support plates arranged at intervals. A shelf is provided on the top of the support plate. A partition 1 is fixedly provided in the middle of the shelf. A set of partitions 2 is provided on each side of partition 1. Multiple sets of partitions 3 are provided between partitions 1 and 2 at intervals. A sliding groove is provided through the shelf along its length. A slider is fixedly provided at the bottom of partitions 1, 2 and 3. The slider is slidably provided in the sliding groove. A rotating shaft is fixedly provided at one end of the slider at the bottom of the shelf. Two sets of connecting rods are rotatably provided on the rotating shaft. The connecting rods on adjacent sets of sliders are rotatably connected. A steel beam is provided on the bottom surface of the middle of the shelf. It also includes a drive mechanism, which is disposed on the shelf; It also includes a measuring mechanism, and the driving mechanism is located below the shelf.

[0006] Preferably, the driving mechanism includes an adjusting rod located in a groove and rotatably connected to the shelf. The adjusting rod has threaded sections on both sides of one section within the groove, each with a slider threaded onto one end of the adjusting rod. The sliders at the bottom of the first and third partitions have through holes aligned with the adjusting rod. When adjusting the distance between the two sets of second partitions, the operator rotates the adjusting rod. The opposing threaded sections on the adjusting rod cause the sliders at the bottom of the two sets of second partitions to move synchronously closer or further apart, thereby adjusting the distance between the two sets of second partitions. When the second partition moves, the bottom slider and connecting rod drive the third partition to move synchronously. After the distance adjustment is complete, the threaded sections axially limit the second partition, preventing slippage when the second and third partitions are subjected to horizontal compression.

[0007] Preferably, the measuring mechanism includes a load plate, a jack, and a pressure plate. The load plate is positioned below the steel beam, and the jack is positioned on the load plate. The output shaft of the jack is equipped with a pressure plate, which has a limiting groove for fitting the steel beam. The operator places the load plate on a leveled surface, then places the jack on the load plate. The jack is then activated, causing its output end to lift the pressure plate until the limiting groove on the pressure plate is embedded in the bottom of the steel beam. The output end of the jack extends, causing the pressure plate to apply a thrust to the steel beam. By gradually increasing the thrust and observing the settlement distance of the load plate under each thrust level, the load test is completed. The steel beam at the bottom of the load plate is an I-beam, located in the middle of the load plate, ensuring that the force point is located in the middle of the load plate when the jack applies a thrust to the steel beam.

[0008] Preferably, laser sensors are installed at the bottom of both sides of the pressure plate, and pressure sensors are installed in the limiting groove. When the output end of the jack drives the pressure plate to apply a thrust to the steel beam, the pressure sensors in the limiting groove detect and transmit the magnitude of the thrust. The laser sensors at the bottom of both sides of the pressure plate are aligned with the load plate at the bottom, which can detect and transmit the distance between the two sides of the pressure plate and the load plate, thereby knowing the settlement distance of the load plate. Furthermore, the measurement by the two sets of laser sensors can be used to judge the uneven settlement of the load plate, ensuring the accuracy of the test.

[0009] Preferably, a fixing block is fixedly provided at the bottom of the shelf, and the fixing block is provided with a T-shaped groove for fitting the steel beam. When installing the steel beam, the worker inserts the steel beam into the bottom of the shelf along the T-shaped groove on the fixing block, ensuring effective positioning of the steel beam and improving the efficiency of disassembly and assembly of the steel beam.

[0010] Preferably, the shelf has mounting grooves on both sides along its length, and a fixing rod is fixedly installed in the mounting groove. Limiting blocks are fixedly installed at the bottom of partition 1, partition 2 and partition 3. The limiting blocks are located in the mounting groove and are slidably sleeved on the fixing rod. When partition 2 and partition 3 slide along the sliding groove, the limiting blocks at the bottom slide along the mounting groove. The limiting of the limiting blocks by the fixing rod further ensures the stability of the sliding of partition 2 and partition 3.

[0011] Preferably, the two sides of the placement board are fixedly provided with locking strips, and the support board is provided with locking grooves that match the locking strips. When the placement board is placed on top of the two sets of support boards, the locking strips at the bottom of the placement board are embedded in the locking grooves at the top of the support board, thereby limiting the placement of the placement board, ensuring the accuracy of the placement of the placement board, and ensuring the accuracy of the test results.

[0012] Preferably, each of the partitions 1, 2, and 3 is provided with a baffle at its top, and a rod is fixedly provided at the bottom of the baffle. Each of the partitions 1, 2, 3, and the top of the baffle is provided with a countersunk hole that matches the rod. The rod can be inserted into the countersunk hole, and then the partitions 1, 2, and 3 can be stacked on top of each other. The overall height of the baffles can be adjusted according to the stacking height of the concrete counterweights to ensure effective limiting of the concrete counterweights during stacking.

[0013] The advantages of adopting the above technical solution are: This utility model includes partition 1, partition 2, partition 3, and sliders. During the sliding of the two sets of partition 2, the rotating shaft on the bottom slider drives the two sets of connecting rods on the rotating shaft to rotate. Through the rotation connection of the connecting rods on the adjacent sets of rotating shafts, the sliding of partition 2 drives the sliders at the bottom of multiple sets of partition 3 to move synchronously along the slide groove, thereby adjusting the distance between the adjacent sets of sliders and ensuring that the distance between partition 1, partition 2, and partition 3 is the same. This limits the placement of the concrete counterweight, ensures the uniformity of the concrete counterweight stacking, and avoids load eccentricity after stacking. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 A partial cross-sectional view of the present invention is shown; Figure 3A partial cross-sectional view of the present invention is shown; Figure 4 A partial structural schematic diagram of this utility model is shown; Figure 5 A partial structural schematic diagram of the present invention is shown.

[0016] The components are as follows: 1. Support plate; 101. Slot; 2. Storage plate; 201. Slide groove; 202. Mounting groove; 203. Locking strip; 204. Fixing block; 3. Partition 1; 4. Partition 2; 401. Locking block; 5. Partition 3; 501. Sliding block; 5011. Rotating shaft; 5012. Connecting rod; 502. Limiting block; 503. Fixing rod; 504. Baffle; 505. Countersunk hole; 6. Steel beam; 7. Load plate; 8. Jack; 801. Pressure plate; 9. Adjusting rod. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] like Figure 1-5 As shown in the figure, this utility model discloses a plate load testing device, including a support plate 1, a driving mechanism, and a measuring mechanism. The support plates 1 are arranged in two sets at intervals. A placement plate 2 is provided on the top of the support plate 1. A partition 3 is fixedly provided in the middle of the placement plate 2. A set of partitions 4 is provided on each side of the partition 3. Multiple sets of partitions 5 are spaced apart between the partitions 3 and 4. The placement plate 2 has a sliding groove 201 extending through it along its length. 3. Slider 501 is fixedly installed at the bottom of partition 2 4 and partition 3 5. Slider 501 is slidably installed in slide groove 201. A rotating shaft 5011 is fixedly installed at one end of slider 501 at the bottom of the shelf 2. Two sets of connecting rods 5012 are rotatably installed on the rotating shaft 5011. The connecting rods 5012 on adjacent sets of slider 501 are rotatably connected. A steel beam 6 is installed on the bottom surface of the middle part of shelf 2. The driving mechanism is installed on shelf 2 and below shelf 2.

[0019] In at least one embodiment, the driving mechanism includes an adjusting rod 9, which is located in the slide groove 201 and rotatably connected to the shelf 2. The adjusting rod 9 has threaded sections with opposite directions on both sides of a section in the slide groove 201. The sliders 501 on the two sets of partitions 2 4 are each threaded onto one end of the adjusting rod 9. The sliders 501 at the bottom of partitions 1 3 and 3 5 have through holes aligned with the adjusting rod 9. When adjusting the distance between the two sets of partitions 2 4, the operator rotates the adjusting rod 9. The opposite threaded sections on the adjusting rod 9 drive the sliders 501 at the bottom of the two sets of partitions 2 4 to move closer or further away synchronously, thereby adjusting the distance between the two sets of partitions 2 4. When partitions 2 4 move, they drive partitions 3 5 to move synchronously through the sliders 501 at the bottom and the connecting rod 5012. After the distance is adjusted, the threaded sections provide axial limiting for partitions 2 4, preventing partitions 2 4 and 3 5 from slipping when subjected to horizontal compression.

[0020] In at least one embodiment, the measuring mechanism includes a load plate 7, a jack 8, and a pressure plate 801. The load plate 7 is positioned below the steel beam 6, and the jack 8 is positioned on the load plate 7. The output shaft of the jack 8 is fitted with the pressure plate 801, which has a limiting groove for fitting with the steel beam 6. The operator places the load plate 7 on a leveled surface, then places the jack 8 on the load plate 7, and then activates the jack 8, causing its output end to drive the pressure plate 801. The upward movement eventually causes the limiting groove on the pressure plate 801 to be embedded in the bottom of the steel beam 6. Then, the output end of the jack 8 extends and drives the pressure plate 801 to apply a thrust to the steel beam 6. The load test is completed by gradually increasing the thrust and observing the settlement distance of the load plate 7 under each thrust. The steel beam 6 at the bottom of the placement plate 2 is an I-shaped steel beam 6, which is located in the middle of the placement plate 2. When the jack 8 drives the pressure plate 801 to apply a thrust to the steel beam 6, the force point is ensured to be located in the middle of the placement plate 2.

[0021] In at least one embodiment, laser sensors are provided at the bottom of both sides of the pressure plate 801, and pressure sensors are provided in the limiting groove. When the output end of the jack 8 drives the pressure plate 801 to apply a thrust to the steel beam 6, the pressure sensors in the limiting groove detect and transmit the magnitude of the thrust. The laser sensors at the bottom of both sides of the pressure plate 801 are aligned with the load plate 7 at the bottom, which can detect and transmit the distance between the two sides of the pressure plate 801 and the load plate 7, thereby knowing the settlement distance of the load plate 7. Furthermore, the uneven settlement of the load plate 7 can be judged by the measurement of the two sets of laser sensors, ensuring the accuracy of the test.

[0022] In at least one embodiment, the laser sensor may be model KJT-TF05, and the pressure sensor may be model CYT-206. The laser sensor and the pressure sensor are connected to an external control terminal via wires, and the monitoring data of the laser sensor and the pressure sensor can be viewed through the control terminal.

[0023] In at least one embodiment, a fixing block 204 is fixedly provided at the bottom of the shelf 2. The fixing block 204 is provided with a T-shaped groove that matches the steel beam 6. When installing the steel beam 6, the worker inserts the steel beam 6 into the bottom of the shelf 2 along the T-shaped groove on the fixing block 204 to ensure effective positioning of the steel beam 6 and improve the efficiency of disassembly and assembly of the steel beam 6.

[0024] In at least one embodiment, mounting grooves 202 are provided on both sides of the shelf 2 along the length direction. A fixing rod 503 is fixedly installed in the mounting groove 202. Limiting blocks 502 are fixedly installed at the bottom of partition 1 3, partition 2 4 and partition 3 5. The limiting blocks 502 are located in the mounting groove 202 and are slidably sleeved on the fixing rod 503. When partition 2 4 and partition 3 5 slide along the sliding groove 201, the limiting blocks 502 at the bottom are driven to slide along the mounting groove 202. The limiting of the limiting blocks 502 by the fixing rod 503 further ensures the stability of the sliding of partition 2 4 and partition 3 5.

[0025] In at least one embodiment, the two sides of the placement plate 2 are fixedly provided with locking strips 203, and the support plate 1 is provided with a slot 101 that matches the locking strips 203. When the placement plate 2 is placed on top of the two sets of support plates 1, the locking strips 203 at the bottom of the placement plate 2 are embedded in the slot 101 at the top of the support plate 1, thereby limiting the placement plate 2, ensuring the accuracy of the placement of the placement plate 2, and ensuring the accuracy of the test results.

[0026] In at least one embodiment, baffles 504 are provided on the top of partition 3, partition 4, and partition 5, and a rod is fixedly provided at the bottom of the baffle 504. The top of partition 3, partition 4, partition 5, and baffle 504 are provided with countersunk holes 505 that match the rods. The rods at the bottom can be inserted into the countersunk holes 505, and then stacked on top of partitions 3, partition 4, and partition 5. The overall height of the baffles 504 can be adjusted according to the stacking height of the concrete counterweights to ensure effective limiting of the concrete counterweights during stacking.

[0027] During the plate load test, the staff arranged two sets of support plates 1 at intervals on both sides of the test point. Then, the measuring mechanism was set up at the test point, and the placement plate 2 was hoisted onto the two sets of support plates 1 using hoisting equipment, aligning the steel beam 6 at the bottom of the placement plate 2 with the pressure plate 801 in the measuring mechanism. The staff then used a drive mechanism to move the two sets of partition plates 4 synchronously closer or further apart along the slide groove 201, adjusting the distance between them. During the sliding of the two sets of partition plates 4, the rotating shaft 5011 on the bottom slider 501 drives the two sets of connecting rods 5012 on the rotating shaft 5011 to rotate. Through the rotational connection of the connecting rods 5012 on adjacent rotating shafts 5011, the sliding of partition plates 4 causes the sliders 501 at the bottom of multiple sets of partition plates 501 to move synchronously along the slide groove 201, thus adjusting the distance between adjacent sets of sliders 501. The concrete counterweights are uniformly adjusted and spaced at equal intervals, ensuring that partitions 3, 4, and 5 evenly divide the space on the placement plate 2 along its length. Then, the concrete counterweights are hoisted onto the placement plate 2 using hoisting equipment and stacked. The uniform division and positioning of the stacking space by partitions 3, 4, and 5 ensures the uniformity of the stacked concrete counterweights, preventing load eccentricity and guaranteeing test accuracy. Operators can adjust the spacing between partitions 3, 4, and 5 according to the specifications of the concrete blocks to ensure precise positioning of the counterweights. The drive mechanism also limits the movement of partitions 4 and 5, preventing displacement when subjected to lateral compression. After the concrete counterweights are hoisted, the load test can be performed using a measuring mechanism, making the operation convenient.

[0028] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A plate load testing device, characterized in that: include The support plate consists of two sets of support plates arranged at intervals. A shelf is provided on the top of the support plate. A partition 1 is fixedly provided in the middle of the shelf. A set of partitions 2 is provided on each side of partition 1. Multiple sets of partitions 3 are provided between partitions 1 and 2 at intervals. A sliding groove is provided through the shelf along its length. A slider is fixedly provided at the bottom of partitions 1, 2 and 3. The slider is slidably provided in the sliding groove. A rotating shaft is fixedly provided at one end of the slider at the bottom of the shelf. Two sets of connecting rods are rotatably provided on the rotating shaft. The connecting rods on adjacent sets of sliders are rotatably connected. A steel beam is provided on the bottom surface of the middle of the shelf. It also includes a drive mechanism, which is disposed on the shelf; It also includes a measuring mechanism, and the driving mechanism is located below the shelf.

2. The plate load testing device according to claim 1, characterized in that: The driving mechanism includes an adjusting rod located in the slide groove and rotatably connected to the placement plate. The adjusting rod has threaded sections on both sides of a section in the slide groove with opposite directions. The sliders on the two sets of partition plates are threaded onto one end of the adjusting rod. The sliders at the bottom of partition plates one and three have through holes aligned with the adjusting rod.

3. The plate load testing device according to claim 1, characterized in that: The measuring mechanism includes a load plate, a jack, and a pressure plate. The load plate is located below the steel beam, the jack is located on the load plate, the output shaft of the jack is equipped with a pressure plate, and the pressure plate is provided with a limiting groove that matches the steel beam.

4. The plate load testing device according to claim 3, characterized in that: Laser sensors are installed at the bottom of both sides of the pressure plate, and pressure sensors are installed in the limiting groove.

5. The plate load testing device according to claim 1, characterized in that: A fixing block is fixedly installed at the bottom of the shelf, and the fixing block is provided with a T-shaped groove that matches the steel beam.

6. The plate load testing device according to claim 1, characterized in that: The shelf has mounting grooves on both sides along its length, and a fixing rod is fixedly installed in the mounting groove. Limiting blocks are fixedly installed at the bottom of partition 1, partition 2 and partition 3. The limiting blocks are located in the mounting groove and are slidably sleeved on the fixing rod.

7. The plate load testing device according to claim 1, characterized in that: The shelf is fixedly provided with clips on both sides, and the support plate is provided with slots that match the clips.

8. The plate load testing device according to claim 1, characterized in that: The top of each of the partitions 1, 2, and 3 is provided with a baffle, and the bottom of the baffle is fixedly provided with a rod. Each of the partitions 1, 2, 3, and the top of the baffle is provided with a countersunk hole that matches the rod.

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