Loess foundation dry-wet cycle settlement dynamic monitoring device and use method thereof

Abstract

The invention provides a loess foundation dry-wet cycle settlement dynamic monitoring device and a using method thereof, and relates to the technical field of foundation settlement monitoring. The loess foundation dry-wet cycle settlement dynamic monitoring device comprises a first datum point, a liquid spraying assembly and a mounting base; the number of the first datum points and the number of the second datum points are both two, the two first datum points and the two second datum points are both fixed to the detected ground, and the two second datum points are located on the rear sides of the two first datum points. The mounting base and the liquid spraying assembly are both mounted on the ground, the liquid spraying assembly is composed of a mounting base, a mounting block, a liquid spraying pipe and an electric cylinder, the mounting base is fixed to the ground, the mounting block is slidably arranged on the mounting base, and the liquid spraying pipe is fixed to the right end face of the mounting block. According to the device, the two first datum points and the two second datum points are arranged and matched with the liquid spraying assembly, soil around the second datum points can be accurately wetted, foundation dry-wet cycle settlement monitoring is achieved, the monitoring range is effectively expanded, and a foundation is provided for comprehensively mastering the foundation settlement condition.

Description

Technical Field

[0001] This invention relates to the field of foundation settlement monitoring technology, and in particular to a dynamic monitoring device for dry-wet cycle settlement of loess foundation and its usage method. Background Technology

[0002] Foundation settlement monitoring devices are specialized equipment systems used to measure the vertical displacement (settlement or uplift) of buildings, structures and foundation soil in real time or periodically under load, changes in geological conditions (such as groundwater rise and fall, soil consolidation, subsidence, etc.) or external environmental influences (such as earthquakes, precipitation).

[0003] Existing devices cannot perform differentiated monitoring, such as cyclical dry and wet monitoring, and have a narrow monitoring range. During long-term monitoring, existing devices cannot guarantee the stability of the monitoring instrument, which affects the monitoring accuracy. Summary of the Invention

[0004] This invention relates to a dynamic monitoring device for wet-dry cyclic settlement of loess foundation and its usage method, which solves the problems of existing devices being unable to perform differentiated monitoring, such as realizing cyclic wet-dry settlement, having a narrow monitoring range, and being unable to guarantee the stability of the monitoring instrument during long-term monitoring, thus affecting the monitoring accuracy.

[0005] This invention provides a dynamic monitoring device for wet-dry cycle settlement of loess foundation and its usage method, specifically including: a first reference point, a spraying assembly, and a mounting base; two first reference points and two second reference points are provided, and the two first reference points and two second reference points are fixed on the ground to be monitored, with the two second reference points located behind the two first reference points; the mounting base and the spraying assembly are both installed on the ground, and the spraying assembly consists of a mounting seat, a mounting block, a spraying pipe, and an electric cylinder, the mounting seat is fixed on the ground, the mounting block slides on the mounting seat, the spraying pipe is fixed on the right end face of the mounting block, the spraying pipe is connected to an external supply pump, and the spraying pipe is located above the two second reference points.

[0006] Furthermore, an electric cylinder is fixed on the mounting base, and the extended end of the electric cylinder is fixed on the mounting block.

[0007] Furthermore, a monitoring component is installed on the mounting base. The monitoring component consists of a base body, support legs, handles, helical springs, a first threaded rod, a monitoring instrument, a fixed base, and a locking screw. Three support legs are threadedly connected to the base body. All three support legs are in contact with the upper surface of the mounting base, and a handle is welded onto each support leg.

[0008] Furthermore, each of the support legs is fitted with a helical spring, with the lower end of the helical spring contacting the handle and the upper end of the helical spring contacting the seat.

[0009] Furthermore, a first threaded rod is threadedly connected to the base, and a monitoring instrument is fixed at one of the upper ends of the first threaded rod.

[0010] Furthermore, the mounting base is fixed with three fixing seats, and the three support legs are respectively inserted into the three fixing seats. Each fixing seat is threaded with a locking screw for locking the support leg.

[0011] Furthermore, a stop is fixed to the upper surface of the mounting base. The stop has a U-shaped structure and covers the outside of the monitoring component.

[0012] Furthermore, an auxiliary component is installed on the stop, which consists of a guide rod, a clamping seat, a second threaded rod, a clamping block, an adjusting rod, and a motor. Two guide rods slide on the stop, and the left end of each guide rod is welded to the clamping seat. The stop is threadedly connected to the second threaded rod, and the left end of the second threaded rod rotates on the clamping seat.

[0013] Furthermore, two clamping blocks slide on the clamping seat, and an adjusting rod rotates on the clamping seat. One end of the adjusting rod on the left and one end on the right are threaded to the two clamping blocks respectively. The threads on the left and right ends of the adjusting rod are in opposite directions. A motor is fixed on the clamping seat, and the output shaft of the motor is fixed on the adjusting rod.

[0014] Furthermore, the monitor is equipped with a cleaning component, which consists of a connecting block, a connecting pipe, a spray base, spray holes, a cylindrical tube, and an air collection hood. The monitor is fixed with a connecting block, which is connected to a connecting pipe. The connecting pipe is connected to a spray base, which has a ring structure. Spray holes are arranged in a ring array on the inner wall of the spray base, and the spray holes are aligned with the lens of the monitor. The other end of the connecting pipe is connected to a cylindrical tube, and an air collection hood is welded in a ring array on the outer wall of the cylindrical tube. The air collection hood, the cylindrical tube, the connecting pipe, and the spray base are connected to each other.

[0015] A monitoring method for a dynamic monitoring device for wet-dry cycle settlement of loess foundation includes the following steps: 1. Fix two first reference points and two second reference points to the ground to be tested. The two second reference points are located behind the two first reference points. Then install the mounting base and spraying assembly on the ground. 2. After the mounting base of the spraying assembly is fixed, start the external liquid supply pump, and spray water into the two second reference points to wet the surrounding soil to simulate a humid environment. Adjust the height of the mounting block by extending and retracting the electric cylinder to change the height of the spraying pipe and adjust the spraying range. 3. When installing the monitoring component, insert the three support legs of the base into the three fixed seats of the mounting base respectively, and tighten the locking screws to fix them; 4. Rotate the handle to adjust the support leg, and use the coil spring to press the handle to prevent loosening, ensuring the monitor is level. Rotating the first threaded rod can adjust the height of the monitor. 5. The monitoring component is further fixed by the auxiliary components. The guide rod on the sliding stop is rotated to move the clamping seat to a suitable position. The drive motor drives the adjusting rod to rotate, so that the two clamping blocks move inward to clamp the first threaded rod, thereby enhancing the stability of the monitoring instrument. 6. During the monitoring process, the monitoring instrument monitors the first and second benchmark points and compares the sedimentation data under dry and wet conditions; 7. In the cleaning component, external air is collected by the air collector hood, enters the spray base through the cylindrical pipe and connecting pipe, and is sprayed out from the nozzle of the cleaning monitoring instrument lens to ensure monitoring accuracy, thereby realizing dynamic monitoring of the dry and wet cycle settlement of the loess foundation.

[0016] This invention provides a dynamic monitoring device for wet-dry cycle settlement of loess foundation and its usage method, which has the following beneficial effects: This device, by setting two first reference points and two second reference points, and in conjunction with the spraying component, can accurately wet the soil around the second reference point, realizing the monitoring of foundation settlement through dry and wet cycles, effectively expanding the monitoring range, and providing a foundation for a comprehensive understanding of foundation settlement.

[0017] This device, through the setting of the liquid spraying assembly, allows the electric cylinder to drive the mounting block to move the liquid spraying pipe up and down, flexibly adjusting the liquid spraying height and thus changing the liquid spraying range to meet the needs of different monitoring scenarios for humid areas and improve the adjustability of the device.

[0018] The device features a monitoring component with three support legs on the base that can be adjusted in height by rotating a handle, facilitating quick calibration of the monitor's level. The helical springs that hold the handle in place prevent the support legs from loosening, ensuring monitoring stability. The first threaded rod allows for flexible height adjustment of the monitor, further enhancing the device's adaptability.

[0019] The mounting base of this device, together with the locking screw, can firmly fix the support legs, preventing data accuracy from being affected by the swaying of the support legs during monitoring. The U-shaped baffle cover on the outside of the monitoring component effectively improves its wind resistance and reduces external environmental interference.

[0020] This device, through the setting of auxiliary components, adjusts the position of the clamping seat via the second threaded rod, and the motor drives the adjusting rod to clamp and fix the two clamping blocks against the first threaded rod, thereby further improving the stability of the monitor and ensuring the reliability of the monitoring data.

[0021] This device uses a cleaning component to collect natural air through a wind collector hood, which is then sprayed out through a nozzle via a connecting pipe and a spray holder. This achieves automatic cleaning of the monitor lens, preventing dust from affecting monitoring accuracy and reducing manual maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0024] In the attached diagram: Figure 1 A perspective view of the dynamic monitoring device for dry-wet cycle settlement of loess foundation of the present invention is shown; Figure 2 A top view of the dynamic monitoring device for wet-dry cycle settlement of loess foundation of the present invention is shown; Figure 3 This is a partially cut-open perspective view of the dynamic monitoring device for dry-wet cycle settlement of loess foundation according to the present invention; Figure 4 The present invention is shown. Figure 3 Rotated 3D image; Figure 5 A perspective view of the cleaning component of the present invention is shown; Figure 6 A perspective view of the monitoring component and auxiliary component of the present invention is shown; Figure 7 The present invention is shown. Figure 6 Enlarged view of point A; Figure 8 A perspective view of the liquid spraying assembly of the present invention is shown.

[0025] List of reference numerals 1. First reference point; 101. Second reference point; 2. Spray assembly; 201. Mounting base; 202. Mounting block; 203. Spray pipe; 204. Electric cylinder; 3. Mounting base; 4. Monitoring assembly; 401. Seat body; 402. Support leg; 403. Handle; 404. Helical spring; 405. First threaded rod; 406. Monitor; 407. Fixed seat; 408. Locking screw; 5. Auxiliary assembly; 501. Guide rod; 502. Clamping seat; 503. Second threaded rod; 504. Clamping block; 505. Adjusting rod; 506. Motor; 6. Stop seat; 7. Cleaning assembly; 701. Connecting block; 702. Connecting pipe; 703. Spray seat; 704. Spray hole; 705. Columnar tube; 706. Air collector hood. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1: Please refer to Figures 1 to 8 : This invention proposes a dynamic monitoring device for wet-dry cycle settlement of loess foundation and its usage method, comprising: a first reference point 1, a spraying assembly 2, and a mounting base 3; two first reference points 1 and two second reference points 101 are provided, both fixed on the ground to be monitored, with the two second reference points 101 located behind the two first reference points 1; the mounting base 3 and the spraying assembly 2 are both mounted on the ground, and the spraying assembly 2 consists of a mounting base 201, a mounting block 202, a spraying pipe 203, and an electric cylinder 20. The device consists of four components: a mounting base 201 fixed to the ground, a mounting block 202 sliding on the mounting base 201, and a spray pipe 203 fixed to the right end of the mounting block 202. The spray pipe 203 is connected to an external supply pump and is located above two second reference points 101. During testing, the external supply pump is activated, and water is sprayed from the spray pipe 203 onto the two second reference points 101. By wetting the soil around the second reference points 101, the monitoring of the dry-wet cycle settlement of the foundation can be achieved, thus expanding the monitoring range.

[0028] An electric cylinder 204 is fixed on the mounting base 201. The extended end of the electric cylinder 204 is fixed on the mounting block 202. When adjusting the height of the spray pipe 203, the electric cylinder 204 can be driven to extend or retract. By adjusting the height of the spray pipe 203, the spray range can be adjusted, and the adjustability is high.

[0029] The mounting base 3 is equipped with a monitoring component 4, which consists of a base 401, support legs 402, handles 403, a helical spring 404, a first threaded rod 405, a monitoring instrument 406, a fixed base 407, and a locking screw 408. The base 401 is threaded with three support legs 402, all of which are in contact with the upper surface of the mounting base 3. Each support leg 402 is welded with a handle 403.

[0030] Each support leg 402 is fitted with a helical spring 404. The lower end of the helical spring 404 contacts the handle 403, and the upper end of the helical spring 404 contacts the base 401. When adjusting the level of the monitor 406, the handle 403 can be rotated for adjustment. After the adjustment is completed, the helical spring 404 can prevent the handle 403 from loosening by pressing against it.

[0031] The base 401 is threaded with a first threaded rod 405, and a monitoring instrument 406 is fixed at one end of the first threaded rod 405. When adjusting the height of the monitoring instrument 406, the first threaded rod 405 can be rotated, which improves the adjustability of the device.

[0032] The mounting base 3 has three fixed seats 407, and three support legs 402 are respectively inserted into the three fixed seats 407. Each fixed seat 407 is threaded with a locking screw 408 for locking the support leg 402. During installation, the three support legs 402 are inserted into the three fixed seats 407, and then the locking screw 408 is tightened to fix the support leg 402. The fixed seats 407 and the locking screw 408 can improve the stability of monitoring.

[0033] Among them, a baffle 6 is fixed on the upper surface of the mounting base 3. The baffle 6 has a U-shaped structure and covers the outside of the monitoring component 4. During use, the baffle 6 can improve the wind resistance and stability of the monitoring component 4 by blocking the wind.

[0034] The stop 6 is equipped with an auxiliary component 5, which consists of a guide rod 501, a clamping seat 502, a second threaded rod 503, a clamping block 504, an adjusting rod 505, and a motor 506. Two guide rods 501 slide on the stop 6, and the left end of each guide rod 501 is welded to the clamping seat 502. The stop 6 is threaded with a second threaded rod 503, and the left end of the second threaded rod 503 rotates on the clamping seat 502.

[0035] The clamping base 502 has two sliding clamping blocks 504, and an adjusting rod 505 is rotatably mounted on the clamping base 502. The left and right ends of the adjusting rod 505 are threaded to the two clamping blocks 504 respectively, and the thread directions of the left and right ends of the adjusting rod 505 are opposite. A motor 506 is fixed on the clamping base 502, and the output shaft of the motor 506 is fixed to the adjusting rod 505. When clamping and fixing the monitoring component 4, the second threaded rod 503 is rotated to adjust the two clamping blocks 504 to the position of the first threaded rod 405, driving the motor 506 to rotate. The motor 506 drives the adjusting rod 505 to rotate. Under the threaded drive of the adjusting rod 505, the two clamping blocks 504 move inward to complete the clamping and fixing of the first threaded rod 405. By clamping the first threaded rod 405 with the clamping blocks 504, the stability of the monitoring instrument 406 can be improved, thus improving the monitoring stability.

[0036] A monitoring method for a dynamic monitoring device for wet-dry cycle settlement of loess foundation includes the following steps: 1. Fix two first reference points 1 and two second reference points 101 to the ground to be tested. The two second reference points 101 are located behind the two first reference points 1. Then install the mounting base 3 and the spraying assembly 2 on the ground. 2. After the mounting base 201 of the spraying assembly 2 is fixed, the external liquid supply pump is started, and the spraying pipe 203 sprays water to the two second reference points 101 to wet the surrounding soil to simulate a humid environment. The height of the mounting block 202 is adjusted by extending and retracting the electric cylinder 204 to change the height of the spraying pipe 203 and realize the adjustment of the spraying range. 3. When installing the monitoring component 4, insert the three support legs 402 of the base 401 into the three fixed seats 407 of the mounting base 3 respectively, and tighten the locking screws 408 to fix it; 4. Rotate handle 403 to adjust support leg 402, and use helical spring 404 to press handle 403 against it to prevent loosening, ensuring that monitor 406 is horizontal. Rotate first threaded rod 405 to adjust the height of monitor 406. 5. The monitoring component 4 is further fixed by the auxiliary component 5, the guide rod 501 on the sliding stop 6 is rotated, the second threaded rod 503 is rotated to move the clamping seat 502 to a suitable position, the drive motor 506 drives the adjusting rod 505 to rotate, so that the two clamping blocks 504 move inward to clamp the first threaded rod 405, thereby enhancing the stability of the monitoring instrument 406. 6. During the monitoring process, the monitoring instrument 406 monitors the first reference point 1 and the second reference point 101, and compares the sedimentation data under dry and wet conditions; 7. In the cleaning component 7, the outside air is collected by the air collecting hood 706, enters the spray base 703 through the cylindrical pipe 705 and the connecting pipe 702, and is sprayed out from the lens of the cleaning monitoring instrument 406 through the spray hole 704 to ensure the monitoring accuracy, thereby realizing the dynamic monitoring of the dry and wet cycle settlement of the loess foundation.

[0037] Example 2, based on Example 1, such as Figures 1-8 As shown, a cleaning component 7 is installed on the monitoring instrument 406. The cleaning component 7 consists of a connecting block 701, a connecting pipe 702, a spray base 703, spray holes 704, a cylindrical tube 705, and an air collection hood 706. The connecting block 701 is fixed on the monitoring instrument 406. The connecting pipe 702 is connected to the connecting block 701. The spray base 703 is connected to the connecting pipe 702. The spray base 703 has a ring structure, and the inner wall of the spray base 703 has spray holes 7 arranged in a ring array. 04. The nozzle 704 is aligned with the lens of the monitor 406; the other end of the connecting pipe 702 is connected to a cylindrical pipe 705. The outer wall of the cylindrical pipe 705 is welded with an air collecting hood 706 in a ring array. The air collecting hood 706, the cylindrical pipe 705, the connecting pipe 702 and the nozzle base 703 are connected. During use, when the outside wind blows, it is collected by the air collecting hood 706 and then sprayed out through the nozzle 704 to achieve automatic cleaning of the lens.

[0038] The working principle of this embodiment is as follows: When using this device to monitor the dynamic settlement of loess foundations under wet and dry cycles, firstly, two first reference points 1 and two second reference points 101 are fixed on the ground to be monitored. The two second reference points 101 are located behind the two first reference points 1. Then, the mounting base 3 and the spraying assembly 2 are installed on the ground. After the mounting seat 201 of the spraying assembly 2 is fixed, the external liquid supply pump is started, and the spraying pipe 203 sprays water onto the two second reference points 101 to wet the surrounding soil to simulate a humid environment. The height of the mounting block 202 is adjusted by extending and retracting the electric cylinder 204, thereby changing the height of the spraying pipe 203 and adjusting the spraying range. When installing the monitoring assembly 4, the three support legs 402 of the base 401 are inserted into the three fixed seats 407 of the mounting base 3, and the locking screws 408 are tightened to fix them. The handle 403 is rotated to adjust the support legs 402, and the spiral spring 404 is used to press against the handle 403 to prevent loosening, ensuring the monitoring instrument is secure. The height of the monitor 406 can be adjusted by rotating the first threaded rod 405. The U-shaped baffle 6 covers the monitoring component 4, improving its wind resistance and stability. The monitoring component 4 is further fixed by the auxiliary component 5. The guide rod 501 on the sliding baffle 6 is rotated to move the clamping seat 502 to a suitable position. The drive motor 506 drives the adjusting rod 505 to rotate, causing the two clamping blocks 504 to move inward to clamp the first threaded rod 405, enhancing the stability of the monitor 406. During the monitoring process, the monitor 406 monitors the first reference point 1 and the second reference point 101, comparing the settlement data under dry and wet conditions. In the cleaning component 7, the outside wind is collected by the wind collector 706, enters the spray seat 703 through the cylindrical tube 705 and the connecting tube 702, and is sprayed out from the spray hole 704 to clean the lens of the monitor 406, ensuring monitoring accuracy, thereby realizing dynamic monitoring of the dry and wet cycle settlement of the loess foundation.

Claims

1. A dynamic monitoring device for wet-dry cycle settlement of loess foundation, characterized in that, include: The system comprises a first reference point (1), a spraying assembly (2), and a mounting base (3); two reference points (1) and two reference points (101) are provided, and the two first reference points (1) and the two second reference points (101) are fixed on the ground to be tested, with the two second reference points (101) located behind the two first reference points (1); the mounting base (3) and the spraying assembly (2) are both installed on the ground, and the spraying assembly (2) consists of a mounting base (201), a mounting block (202), and a spraying... The device consists of a pipe (203) and an electric cylinder (204). The mounting base (201) is fixed on the ground. A mounting block (202) slides on the mounting base (201). A spray pipe (203) is fixed on the right end face of the mounting block (202). The spray pipe (203) is connected to the external supply pump. The spray pipe (203) is located above two second reference points (101). An electric cylinder (204) is fixed on the mounting base (201). The extended end of the electric cylinder (204) is fixed on the mounting block (202).

2. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 1, characterized in that, The mounting base (3) is equipped with a monitoring component (4). The monitoring component (4) consists of a base (401), support legs (402), handle (403), helical spring (404), first threaded rod (405), monitoring instrument (406), fixed base (407) and locking screw (408). The base (401) is threaded with three support legs (402). All three support legs (402) are in contact with the upper end face of the mounting base (3). Each support leg (402) is welded with a handle (403).

3. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 2, characterized in that, Each of the support legs (402) is fitted with a helical spring (404), with the lower end of the helical spring (404) contacting the handle (403) and the upper end of the helical spring (404) contacting the seat (401).

4. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 3, characterized in that, The base (401) is threaded with a first threaded rod (405), and a monitoring instrument (406) is fixed at one end of the first threaded rod (405).

5. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 4, characterized in that, The mounting base (3) is fixed with three fixing seats (407), and three support legs (402) are respectively inserted into the three fixing seats (407). Each fixing seat (407) is threaded with a locking screw (408) for locking the support leg (402).

6. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 5, characterized in that, The upper surface of the mounting base (3) is fixed with a stop (6), which has a U-shaped structure and covers the outside of the monitoring component (4).

7. A dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 6, characterized in that, An auxiliary component (5) is installed on the stop (6). The auxiliary component (5) consists of a guide rod (501), a clamping seat (502), a second threaded rod (503), a clamping block (504), an adjusting rod (505), and a motor (506). Two guide rods (501) slide on the stop (6). The left end of each guide rod (501) is welded to the clamping seat (502). The stop (6) is threaded with a second threaded rod (503). The left end of the second threaded rod (503) rotates on the clamping seat (502).

8. The dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 7, characterized in that, Two clamping blocks (504) slide on the clamping seat (502). An adjusting rod (505) rotates on the clamping seat (502). The left and right ends of the adjusting rod (505) are threaded to the two clamping blocks (504) respectively. The thread directions of the left and right ends of the adjusting rod (505) are opposite. A motor (506) is fixed on the clamping seat (502). The output shaft of the motor (506) is fixed on the adjusting rod (505).

9. A dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 8, characterized in that, The monitoring instrument (406) is equipped with a cleaning component (7), which consists of a connecting block (701), a connecting pipe (702), a spray holder (703), a spray hole (704), a cylindrical tube (705), and a dust collector (706). The monitoring instrument (406) is fixed with a connecting block (701), a connecting pipe (702) is connected to the connecting block (701), and a spray holder (704) is connected to the connecting pipe (702). The spray holder (705) is connected to the nozzle (706). 3) It is a ring structure. The inner wall of the spray base (703) is provided with spray holes (704) in a ring array. The spray holes (704) are aligned with the lens of the monitor (406). The other end of the connecting pipe (702) is connected to a cylindrical pipe (705). The outer wall of the cylindrical pipe (705) is welded with an air collecting hood (706) in a ring array. The air collecting hood (706), the cylindrical pipe (705), the connecting pipe (702) and the spray base (703) are connected.

10. The monitoring method of the dynamic monitoring device for wet-dry cycle settlement of loess foundation according to claim 9, characterized in that, Includes the following steps:

1. Fix two first reference points (1) and two second reference points (101) on the ground to be tested. The two second reference points (101) are located behind the two first reference points (1). Then install the mounting base (3) and the spraying assembly (2) on the ground.

2. After the mounting base (201) of the spraying assembly (2) is fixed, the external liquid supply pump is started, and the spraying pipe (203) sprays water to the two second reference points (101) to wet the surrounding soil to simulate a humid environment. The height of the mounting block (202) is adjusted by extending and retracting the electric cylinder (204) to change the height of the spraying pipe (203) and realize the adjustment of the spraying range.

3. When installing the monitoring component (4), insert the three support legs (402) of the base (401) into the three fixed seats (407) of the mounting base (3) respectively, and tighten the locking screws (408) to fix it; 4. Rotate the handle (403) to adjust the support leg (402), and use the helical spring (404) to press the handle (403) against the ground to prevent loosening, ensuring that the monitor (406) is level. Rotate the first threaded rod (405) to adjust the height of the monitor (406); 5. The monitoring component (4) is further fixed by the auxiliary component (5), the guide rod (501) on the sliding stop (6) is rotated, the second threaded rod (503) is rotated to move the clamping seat (502) to a suitable position, the drive motor (506) drives the adjusting rod (505) to rotate, so that the two clamping blocks (504) move inward to clamp the first threaded rod (405), thereby enhancing the stability of the monitoring instrument (406); 6. During the monitoring process, the monitoring instrument (406) monitors the first reference point (1) and the second reference point (101) and compares the sedimentation data under dry and wet conditions; 7. In the cleaning component (7), the outside wind is collected by the wind collector hood (706), enters the spray seat (703) through the cylindrical tube (705) and the connecting tube (702), and is sprayed out from the lens of the cleaning monitoring instrument (406) through the spray hole (704) to ensure the monitoring accuracy, thereby realizing the dynamic monitoring of the dry and wet cycle settlement of the loess foundation.

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