A model pile test soil body settlement monitoring device

Abstract

The utility model relates to geotechnical engineering test equipment technical field especially relates to a model pile test soil body settlement monitoring devices, including frame, connecting plate, connecting ring, bottom plate, test stake and level gauge, frame is four, and both sides frame inside all are fixedly connected with connecting plate, and the connecting ring is fixedly connected between two connecting plates, and the bottom plate is one, and the bottom plate top fixedly connected with test stake, and test stake top installs a plurality of level gauge. Through the whole hoisting of lifting ring, the test stake is combined level gauge and realizes fast leveling, and the perpendicularity and horizontal precision of test stake and connecting frame are assisted to realize the vertical and horizontal precision of test stake and connecting frame with transmitter one and receiver one, solve the problem that the existing monitoring device lacks leveling positioning reference, needs repeatedly adjusting, leads to the problem of difficult installation, low efficiency, influences data accuracy and test repeatability.

Description

Technical Field

[0001] This utility model relates to the technical field of geotechnical engineering testing equipment, and in particular to a soil settlement monitoring device for model pile testing. Background Technology

[0002] In geotechnical engineering model tests, the interaction characteristics between the model pile and the soil are the core research content for revealing the bearing mechanism, load transfer law, and deformation response of the pile foundation. Accurately obtaining soil settlement data during loading is of great significance for assessing the stability of the pile-soil system and analyzing the characteristics of side friction and end bearing capacity. Therefore, high-precision, continuous, and reliable soil settlement monitoring is a key link to ensure the scientific validity and effectiveness of model tests.

[0003] However, during the commissioning phase of existing soil settlement monitoring devices before pre-embedding or loading model piles, the lack of convenient leveling mechanisms or positioning benchmarks means that operators need to repeatedly adjust the positions of the supports and sensors, making it difficult to quickly achieve coordinated leveling of the monitoring components and the pile body. This not only significantly prolongs the test preparation time but also easily leads to distorted monitoring data due to initial installation deviations, resulting in difficult installation and adjustment, low leveling efficiency, and affecting the accuracy and repeatability of measurements.

[0004] Therefore, it is necessary to design a soil settlement monitoring device for model pile tests. Utility Model Content

[0005] To overcome the shortcomings of existing monitoring devices, such as the lack of leveling and positioning benchmarks, the need for repeated adjustments, which leads to installation difficulties, low efficiency, and affects data accuracy and test repeatability, this utility model provides a soil settlement monitoring device for model pile tests.

[0006] A soil settlement monitoring device for model pile tests includes a frame, connecting plates, connecting rings, a base plate, a test pile, a level, a connecting frame, a receiver 1, a transmitter 1, a controller, a transmitter 2, a receiver 2, limiting rails, sliding blocks, and adjusting rods. The frame consists of four parts, with connecting plates fixedly connected inside the left and right side frames, and connecting rings fixedly connected between two connecting plates. The base plate consists of one part, with the test pile fixedly connected to its top. Multiple levels are installed on the top of the test pile. A connecting frame is installed between two connecting plates. Receiver 1 is installed on the top of the test pile. Transmitter 1 is installed at the bottom of the connecting frame. A controller is installed on the front side of the connecting ring. Multiple transmitters 2 are installed on the inner wall of the connecting ring. Multiple limiting rails are fixedly connected to the outside of the test pile. Sliding blocks are slidably connected inside each limiting rail. Receivers 2 are installed outside each sliding block. Adjusting rods are rotatably connected inside each limiting rail. Each sliding block is threadedly connected to its corresponding adjusting rod. Receiver 1, transmitter 1, transmitter 2, and receiver 2 are all electrically connected to the controller.

[0007] Furthermore, it also includes lifting rings, with multiple lifting rings fixedly connected to the top of the test pile.

[0008] Furthermore, it also includes scale plates, with multiple scale plates fixedly connected to the outside of the test pile.

[0009] Furthermore, it also includes transparent plates, with multiple transparent plates fixedly connected inside the connecting ring.

[0010] Furthermore, it also includes a limiting ring, which is fixedly connected to the top of the base plate.

[0011] Furthermore, it also includes alarms, with alarms installed on the top of each connection plate, and the alarms are electrically connected to the controller.

[0012] Beneficial effects: 1. The test pile is quickly leveled by hoisting it as a whole with the lifting ring and using a level. The transmitter and receiver are used to help to accurately align the test pile with the connecting frame vertically and horizontally. This solves the problem that the existing monitoring device lacks a leveling and positioning benchmark, requires repeated adjustments, and causes installation difficulties, low efficiency, and affects the accuracy of data and the repeatability of the test.

[0013] 2. This utility model, by setting up a scale plate, a transparent plate, a transmitter II and a receiver II, allows the bottom plate to sink synchronously with the soil, causing the test pile to move vertically. With the scale plate and the transparent plate, the settlement of the pile body can be read directly, which is convenient for real-time on-site observation and data verification. The combination of transmitter II and receiver II can obtain the horizontal displacement of the pile body at different heights in real time, comprehensively reflecting the coupling deformation characteristics of the soil and the pile body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the connecting plate, connecting ring, and base plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the test pile, hanging ring, and level of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the receiver 2, sliding block and adjusting rod components of this utility model.

[0018] The components in the diagram are labeled as follows: 1-Frame, 2-Connecting plate, 3-Connecting ring, 4-Base plate, 5-Test stake, 6-Lifting ring, 7-Level, 8-Scale plate, 9-Transparent plate, 10-Limiting ring, 11-Connecting frame, 12-Receiver 1, 13-Transmitter 1, 14-Controller, 15-Alarm, 16-Transmitter 2, 17-Receiver 2, 18-Limiting rail, 19-Sliding block, 20-Adjusting rod. Detailed Implementation

[0019] Example: A soil settlement monitoring device for model pile tests, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the system includes a frame 1, connecting plate 2, connecting ring 3, base plate 4, test pile 5, lifting ring 6, level 7, limit ring 10, connecting bracket 11, receiver 12, transmitter 13, controller 14, transmitter 2 16, receiver 2 17, limit rail 18, sliding block 19, and adjusting rod 20. The frame 1 consists of four parts, arranged in a U-shape. Connecting plates 2 are welded inside the left and right sides of the frame 1, and connecting rings 3 are welded between two connecting plates 2. The base plate 4 consists of one part, with a test pile 5 welded to its top. Two lifting rings 6, symmetrically distributed front to back, are welded to the top of the test pile 5. Two levels 7, symmetrically distributed left to right, are installed on the top of the test pile 5. A limit ring 10 is welded to the top of the base plate 4. A connecting frame 11 is installed between the two connecting plates 2. A receiver 12 is installed on the top of the test pile 5. A transmitter 13 is installed on the bottom of the connecting frame 11. A controller 14 is installed on the front side of the connecting ring 3. Four transmitters 16 distributed along the axis are installed on the inner wall of the connecting ring 3. Four limiting rails 18 distributed along the axis are welded to the outside of the test pile 5. Sliding blocks 19 are slidably connected to the inside of each limiting rail 18 through a sliding groove. Receivers 17 are installed on the outside of each sliding block 19. Adjusting rods 20 are rotatably connected to the inside of each limiting rail 18. Each sliding block 19 is threadedly connected to the corresponding adjusting rod 20. Receivers 12, transmitters 13, transmitters 16 and 17 are all electrically connected to the controller 14.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, it also includes a scale plate 8 and a transparent plate 9. Four scale plates 8 are welded to the outside of the test pile 5 and distributed along the axis. Four transparent plates 9 are welded to the inside of the connecting ring 3 and distributed along the axis. The transparent plates 9 are all acrylic plates, which makes it easy for operators to read the scale changes intuitively through the transparent plates 9.

[0021] like Figure 1 and Figure 2 As shown, it also includes an alarm 15. An alarm 15 is installed on the top of each of the connecting plates 2, and the alarm 15 is electrically connected to the controller 14.

[0022] When this device is needed, the operator first hoists the base plate 4 and the test pile 5 as a whole to the surface of the test soil using the lifting ring 6. The horizontal status of the test pile 5 on the left and right sides can be observed through the level 7. If the level 7 shows tilt, the position of the test pile 5 can be finely adjusted until the reading of the level 7 is consistent. Then, with the test pile 5 as the center, the frame 1 is placed around the test soil, so that the test pile 5 is vertically located at the center of the connecting ring 3. The test pile 5 is vertically and horizontally aligned with the connecting frame 11 through the transmitter-13 and the receiver-12. After the adjustment is completed, the connecting frame 11 and the receiver-12 are removed from the connecting plate 2 and the test pile 5 respectively, and a counterweight can be applied to the test pile 5. The counterweight generates downward pressure on the test pile 5.

[0023] When the test soil settles or deforms, it will cause the base plate 4 in contact with the soil to move downwards, thereby causing the test pile 5 to sink vertically in sync. At the same time, the scale plate 8 sinks with the pile body, and the staff can visually read the scale changes through the transparent plate 9 to help verify the settlement data. If the soil settlement is accompanied by lateral deformation, the test pile 5 will produce horizontal displacement or radial deformation. The test pile 5 will drive the limit rail 18 and the sliding block 19 to move horizontally in sync, causing the horizontal distance between the receiver 2 17 and the transmitter 2 16 to change. Receivers 2 17 at multiple heights will capture the changes in horizontal distance and transmit the signals to the controller 14 to realize synchronous monitoring of the horizontal displacement of the pile body at different heights. The controller 14 will receive the electrical signals transmitted by the receiver 2 17 in real time, and combine them with the reference data recorded in the initial calibration stage to automatically calculate the real-time settlement and the horizontal displacement of the pile body at each height, and generate a monitoring curve.

[0024] If the real-time monitoring data exceeds the threshold, the controller 14 immediately sends a trigger signal to the alarm 15. The alarm 15 is activated, reminding the staff to suspend the test in time and check the soil condition to avoid damage to the device or deviation of the test data. The limit ring 10 can limit the excessive horizontal displacement of the base plate 4 to prevent the test pile 5 from leaving the monitoring range due to excessive offset, thus ensuring the stability of the monitoring. After the monitoring is completed, the operator can rotate the adjusting rod 20. The rotating adjusting rod 20 drives the sliding block 19 to slide up and down along the limit rail 18 to adjust the receivers 17 at different heights to be horizontally aligned with the transmitters 16 at the corresponding positions. Finally, the controller 14 records the initial state data, including the initial vertical distance between receiver 12 and transmitter 13, the initial horizontal distance between each receiver 17 and the corresponding transmitter 16, and the initial reading of the scale plate 8 on the outside of the test pile 5. This completes the use of the device. After the monitoring is completed, the counterweight on the top of the test pile 5 is removed, and the device is lifted off the monitoring ground for the next monitoring.

Claims

1. A soil settlement monitoring device for model pile tests, characterized in that, The system includes a frame (1), connecting plates (2), connecting rings (3), a base plate (4), test stakes (5), a level (7), a connecting frame (11), receiver one (12), transmitter one (13), a controller (14), transmitter two (16), receiver two (17), a limit rail (18), a sliding block (19), and an adjusting rod (20). There are four frames (1), with connecting plates (2) fixedly connected inside both the left and right sides of the frame (1). A connecting ring (3) is fixedly connected between two connecting plates (2). There is one base plate (4), with a test stake (5) fixedly connected to the top of the base plate (4). Multiple levels (7) are installed on the top of the test stake (5). A connecting frame (11) is installed between two connecting plates (2). A receiver (12) is installed on the top of the test pile (5), a transmitter (13) is installed on the bottom of the connecting frame (11), a controller (14) is installed on the front side of the connecting ring (3), and multiple transmitters (16) are installed on the inner wall of the connecting ring (3). Multiple limit rails (18) are fixedly connected to the outside of the test pile (5). Sliding blocks (19) are slidably connected inside the limit rails (18). Receivers (17) are installed on the outside of the sliding blocks (19). Adjusting rods (20) are rotatably connected inside the limit rails (18). The sliding blocks (19) are threadedly connected to the corresponding adjusting rods (20). Receivers (12), transmitters (13), transmitters (16) and receivers (17) are all electrically connected to the controller (14).

2. The soil settlement monitoring device for model pile tests according to claim 1, characterized in that, It also includes lifting rings (6), and multiple lifting rings (6) are fixedly connected to the top of the test pile (5).

3. A soil settlement monitoring device for model pile tests according to claim 2, characterized in that, It also includes a scale plate (8), and the test pile (5) is externally fixed with multiple scale plates (8).

4. A soil settlement monitoring device for model pile tests according to claim 3, characterized in that, It also includes a transparent plate (9), and multiple transparent plates (9) are fixedly connected inside the connecting ring (3).

5. A soil settlement monitoring device for model pile tests according to claim 4, characterized in that, It also includes a limiting ring (10), and the bottom plate (4) is fixedly connected to the limiting ring (10).

6. A soil settlement monitoring device for model pile tests according to claim 5, characterized in that, It also includes an alarm (15), and an alarm (15) is installed on the top of the connecting plate (2). The alarm (15) is electrically connected to the controller (14).

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