Measurement equipment and measurement method for detecting siltation measurement quantity in dense suspended matter water

Abstract

The invention discloses measuring equipment and a measuring method for detecting siltation measurement quantity in dense suspended matter water. The measuring equipment comprises key components such as an equipment body, a through groove, a sliding plate, an extension plate, a collection frame, a longitudinal groove, a threaded rod, a sonar receiver and a waterproof sound wave releaser. The motor is started to drive the threaded rod to rotate, garbage on the left side of the waterproof sound wave releaser is cleaned, and then the water depth and the sediment thickness are measured through the sound wave reflection principle. The method is novel in that an efficient underwater sediment measuring technology is provided, and through the innovative design of a mechanical structure, protection of measuring equipment and environment-friendly treatment are achieved. According to the implementation of the method, a new technical scheme is provided for accurate evaluation of underwater deposits, and the method has important practical application value.

Description

Technical Field

[0001] The invention relates to the technical field of measuring equipment, and in particular to a measuring equipment and a measuring method for detecting siltation volume in water with dense suspended matter. Background Art

[0002] In the field of underwater sediment detection, traditional measurement techniques mainly rely on two major methods: direct measurement and indirect calculation. Direct measurement methods involve using tools such as a sounding hammer or a sounding rod to determine the water depth by physically contacting the bottom of the water. Indirect calculation methods involve acoustic bathymetry, single-beam and multi-beam bathymetry techniques, which infer the water depth through the propagation time of sound waves or electromagnetic waves. However, these technologies have limitations when applied in waters with dense suspended matter, because suspended matter interferes with sound wave signals and affects measurement accuracy. In addition, existing technologies are inefficient in collecting and processing sediments, and often require additional cleanup work, which not only increases costs but also affects the environment. Summary of the invention

[0003] The object of the present invention is to provide a measuring device and a measuring method for detecting the amount of siltation in water with dense suspended matter.

[0004] To achieve the above object, the present invention is implemented according to the following technical solutions:

[0005] The present invention includes an equipment body, wherein a through groove is provided inside the equipment body, a sliding plate is slidably connected inside the through groove, an extension plate is movably abutted at the bottom of the sliding plate, a collection frame is fixedly connected at the bottom of the extension plate, a longitudinal groove is provided inside the equipment body, a threaded rod is rotatably connected inside the longitudinal groove, a trapezoidal plate is fixedly connected to the left side of the sliding plate, the trapezoidal plate is threadedly sleeved on the outside of the threaded rod, a sonar receiver is provided on the top of the equipment body, a waterproof sound wave releaser is provided at the bottom of the equipment body, and the waterproof sound wave releaser is electrically connected to the sonar receiver.

[0006] Preferably, a built-in groove is provided inside the sliding plate, a hollow plate is slidably connected inside the built-in groove, a first clamping plate is fixedly connected to the left side of the hollow plate, the first clamping plate is movably clamped inside the right side of the extension plate, a rectangular body is slidably connected inside the hollow plate, a second clamping plate is fixedly connected to the bottom of the inner wall of the built-in groove, and the second clamping plate is movably clamped to the bottom of the inner wall of the built-in groove.

[0007] Preferably, a circular frame is fixedly connected to the top of the device body, a transparent plate is slidably connected to the inside of the circular frame, a rectangular plate is fixedly connected to the left side of the transparent plate, two screws are rotatably connected to the inside of the rectangular plate, two screw grooves are provided on the left side of the circular frame, and both of the screw grooves are threadedly sleeved on the outside of the corresponding screws.

[0008] Preferably, a longitudinal plate is fixedly connected inside the hollow plate. A first spring is fixedly connected to the bottom of the longitudinal plate, and the bottom end of the first spring is fixedly connected to the top of the cuboid. A second spring is fixedly connected to the right side of the hollow plate, and the right end of the second spring is fixedly connected to the right side inner wall of the built-in groove.

[0009] Preferably, a vertical groove is provided on the left side inner wall of the through groove, and the right side of the trapezoidal plate is slidably connected inside the vertical groove.

[0010] Preferably, a protective shell is fixedly connected to the top of the equipment body. A partition is fixedly connected inside the protective shell. A motor is fixedly connected to the bottom of the partition, and the output end of the motor is fixedly connected to the top end of the threaded rod.

[0011] Preferably, a right-angle plate is fixedly connected to the top of the cuboid, and the top of the right-angle plate is slidably connected to the top of the sliding plate.

[0012] By starting the motor to drive the threaded rod to rotate, further causing the trapezoidal plate to start moving downward, further causing the sliding plate, the extension plate, and the collection box to move downward accordingly, further cleaning the garbage on the left side of the waterproof acoustic wave emitter. Further start the waterproof acoustic wave emitter and the sonar receiver. The acoustic wave emitted by the waterproof acoustic wave emitter is transmitted through the water body. When it encounters the sediment or the ground at the bottom, it is reflected back. Further, the sonar receiver receives the reflected acoustic wave and records the time difference of the echo signal. Combining with the sound speed in the water, the water depth can be calculated. Further, by measuring the water depth multiple times at different locations, the thickness of the sediment at the bottom can be estimated. The volume of the sediment is calculated through the data of multiple measurement points;

[0013] For the described measurement device for detecting the sediment volume in dense suspended matter water, by moving the right-angle plate upward to drive the cuboid to move upward accordingly, further driving the second clamping plate to move upward, so that the second clamping plate is disengaged from the bottom inner wall of the built-in groove. Further move the right-angle plate to the right to drive the hollow plate to move to the right, thereby causing the first clamping plate to be disengaged from the right inner part of the extension plate. Further move the collection box downward so that the extension plate is disengaged from the bottom of the sliding plate. Further rotate the two side screws simultaneously so that the two side screws are disengaged from the corresponding thread grooves. Further, the transparent plate can be moved to the left to debug the sonar receiver.

[0014] The measurement method of the described measurement device for detecting the sediment volume in dense suspended matter water includes the following steps:

[0015] S1: Deploy the equipment body to the target water area to ensure that the waterproof acoustic wave emitter and the sonar receiver are at an appropriate depth underwater;

[0016] S2: Start the motor inside the device body to drive the threaded rod to rotate, causing the trapezoidal plate to move downward, clean the garbage on the left side of the waterproof acoustic wave emitter, and adjust the transparent plate in the return-shaped frame to ensure that the sonar receiver is not blocked so as to accurately receive acoustic wave signals;

[0017] S3: Start the waterproof acoustic wave emitter to emit acoustic wave signals. The acoustic wave signals propagate in water, reflect back when encountering bottom sediments or the ground, and the sonar receiver receives the reflected acoustic wave signals and records the time difference of the echo signals;

[0018] S4: Combine the sound speed in water and use the time difference to calculate the water depth. Repeat the above steps S - S at different locations, collect multiple water depth data, and estimate the thickness of the bottom sediments;

[0019] S5: Use the data of multiple measurement points to calculate the volume of the sediments through a mathematical model; the volume of the sediments can be estimated based on the volume data;

[0020] S6: Operate the right-angled plate to drive the cuboid to move upward, releasing the clamping relationship between the second clamping plate and the bottom of the inner wall of the built-in groove; move the right-angled plate to the right to drive the hollowed-out plate to move to the right, releasing the clamping relationship between the first clamping plate and the inside of the right side of the extension plate; move the collection box downward to release the abutting relationship between the extension plate and the bottom of the sliding plate; rotate the screw rod to extricate the screw rod from the screw groove, and move the transparent plate to the left to debug the sonar receiver;

[0021] S7: Record all measurement data, including the water depth, the thickness of the sediments, and the volume estimation results; analyze the data to evaluate the distribution and volume of the sediments, providing a basis for subsequent cleaning work.

[0022] The beneficial effects of the present invention are:

[0023] The present invention relates to a measuring device and a measuring method for detecting the silt volume in water with dense suspended matter. Compared with the prior art, by combining acoustic detection technology and a mechanical cleaning device, the present invention can effectively remove the suspended matter on the measurement path without affecting the acoustic signal, thereby improving the measurement accuracy of water depth and silt thickness. The structure is reasonably designed, and the waterproof protection function of the sonar receiver is realized through the cooperation of a screw, a screw groove and a transparent plate. At the same time, the collection of suspended matter and the installation and disassembly functions of the collection frame are realized through the cooperation of a first clamping plate, a second clamping plate, an extension plate, a hollow plate and a right-angle plate, significantly improving the working efficiency of the device. While improving the working efficiency, the present invention also takes environmental protection into account. Through the design of the collection frame, the suspended matter in the cleaning process is effectively collected, reducing the secondary pollution of the water body. The present invention provides accurate data support for the management and maintenance of waters such as reservoirs, waterways and ports, and helps to more effectively carry out silt cleaning, waterway dredging and environmental monitoring work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is a sectional structural schematic diagram of the present invention;

[0026] Figure 3 is Figure 2 a partial enlarged view of part A in

[0027] Figure 4 is Figure 2 a partial enlarged view of part B in

[0028] In the figure: 1, equipment body; 2, through groove; 3, protective shell; 4, return-shaped frame; 5, transparent plate; 6, sonar receiver; 7, partition board; 8, motor; 9, threaded rod; 10, vertical groove; 11, collection frame; 12, waterproof acoustic wave release device; 13, sliding plate; 14, extension plate; 15, built-in groove; 16, first clamping plate; 17, longitudinal plate; 18, cuboid; 19, second clamping plate; 20, right-angle plate; 21, hollow plate; 22, first spring; 23, second spring; 24, rectangular plate; 25, screw; 26, screw groove; 27, trapezoidal plate. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention will be further described below in conjunction with the drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not limit the present invention.

[0030] Refer to Figures 1-4, a measuring device for detecting the silt volume in water with dense suspended matter, comprising: a device body 1, a through groove 2 is arranged inside the device body 1, a sliding plate 13 is slidably connected inside the through groove 2, the bottom of the sliding plate 13 is movably abutted against an extension plate 14, a collecting frame 11 is fixedly connected to the bottom of the extension plate 14, a longitudinal groove is arranged inside the device body 1, a threaded rod 9 is rotatably connected inside the longitudinal groove, a trapezoidal plate 27 is fixedly connected to the left side of the sliding plate 13, the trapezoidal plate 27 is threadedly sleeved outside the threaded rod 9, a sonar receiver 6 is arranged on the top of the device body 1, a waterproof acoustic wave emitter 12 is arranged at the bottom of the device body 1, and the waterproof acoustic wave emitter 12 is electrically connected to the sonar receiver 6.

[0031] In this embodiment, an internal groove 15 is arranged inside the sliding plate 13, a hollow plate 21 is slidably connected inside the internal groove 15, a first clamping plate 16 is fixedly connected to the left side of the hollow plate 21, the first clamping plate 16 is movably clamped inside the right side of the extension plate 14, a cuboid 18 is slidably connected inside the hollow plate 21, a second clamping plate 19 is fixedly connected to the bottom of the cuboid 18, and the second clamping plate 19 is movably clamped to the bottom inner wall of the internal groove 15, realizing the installation and disassembly functions of the collecting frame 11.

[0032] In this embodiment, a rectangular frame 4 is fixedly connected to the top of the device body 1, a transparent plate 5 is slidably connected inside the rectangular frame 4, a rectangular plate 24 is fixedly connected to the left side of the transparent plate 5, two screw rods 25 are rotatably connected inside the rectangular plate 24, two screw grooves 26 are arranged on the left side of the rectangular frame 4, and both of the two screw grooves 26 are threadedly sleeved outside the corresponding screw rods 25. The top of the cuboid 18 is fixedly connected to a right-angled plate 20, and the top of the right-angled plate 20 is slidably connected to the top of the sliding plate 13, realizing the waterproof protection function of the sonar receiver 6.

[0033] In this embodiment, a longitudinal plate 17 is fixedly connected inside the hollow plate 21, a first spring 22 is fixedly connected to the bottom of the longitudinal plate 17, the bottom end of the first spring 22 is fixedly connected to the top of the cuboid 18, a second spring 23 is fixedly connected to the right side of the hollow plate 21, and the right end of the second spring 23 is fixedly connected to the right inner wall of the internal groove 15, realizing the reset function of the hollow plate 21.

[0034] In this embodiment, a vertical groove 10 is arranged on the left inner wall of the through groove 2, the right side of the trapezoidal plate 27 is slidably connected inside the vertical groove 10, a protective shell 3 is fixedly connected to the top of the device body 1, a partition plate 7 is fixedly connected inside the protective shell 3, a motor 8 is fixedly connected to the bottom of the partition plate 7, and the output end of the motor 8 is fixedly connected to the top end of the threaded rod 9, realizing the power driving function of the threaded rod 9.

[0035] In this embodiment, during use, starting the motor 8 drives the threaded rod 9 to rotate, further causing the trapezoidal plate 27 to start moving downward, further causing the sliding plate 13, the extension plate 14, and the collection box 11 to move downward, further cleaning the garbage on the left side of the waterproof acoustic wave emitter 12. Further start the waterproof acoustic wave emitter 12 and the sonar receiver 6. The acoustic wave emitted by the waterproof acoustic wave emitter 12 propagates through the water body and is reflected back when it encounters the sediment or the ground at the bottom. Further, the sonar receiver 6 receives the reflected acoustic wave and records the time difference of the echo signal. Combining with the sound speed in the water, the water depth can be calculated. Further, by measuring the water depth multiple times at different locations, the thickness of the sediment at the bottom can be estimated. The volume of the sediment is calculated through the data of multiple measuring points. Further move the right-angle plate 20 upward to drive the cuboid 18 to move upward, further drive the second clamping plate 19 to move upward, so that the second clamping plate 19 is disengaged from the bottom inner wall of the built-in groove 15. Further move the right-angle plate 20 to the right to drive the hollow plate 21 to move to the right, thereby causing the first clamping plate 16 to be disengaged from the right inner part of the extension plate 14. Further move the collection box 11 downward so that the extension plate 14 is disengaged from the bottom of the sliding plate 13. Further rotate the two side screws 25 at the same time so that the two side screws 25 are disengaged from the corresponding screw grooves 26. Further, the transparent plate 5 can be moved to the left to debug the sonar receiver 6. The waterproof protection function of the sonar receiver 6 is realized through the cooperation of the screw 25, the screw groove 26, and the transparent plate 5. The collection of suspended matter and the installation and disassembly functions of the collection box 11 are realized through the cooperation of the first clamping plate 16, the second clamping plate 19, the extension plate 14, the hollow plate 21, and the right-angle plate 20, improving the working efficiency of the device.

[0036] The measuring method of the measuring device for detecting the sediment volume in dense suspended matter water includes the following steps:

[0037] S1: Deploy the device body 1 to the target water area to ensure that the waterproof acoustic wave emitter 12 and the sonar receiver 6 are at an appropriate depth underwater;

[0038] S2: Start the motor 8 inside the device body 1 to drive the threaded rod 9 to rotate, move the trapezoidal plate 27 downward, clean the garbage on the left side of the waterproof acoustic wave emitter 12, and adjust the transparent plate 5 in the return-shaped frame 4 to ensure that the sonar receiver 6 is not blocked so as to accurately receive the acoustic wave signal;

[0039] S3: Start the waterproof acoustic wave emitter 12 to emit an acoustic wave signal. The acoustic wave signal propagates in the water and is reflected back after encountering the sediment or the ground at the bottom. The sonar receiver 6 receives the reflected acoustic wave signal and records the time difference of the echo signal;

[0040] S4: Combine the speed of sound in water, use the time difference to calculate the water depth, repeat the above steps S1 - S3 at different locations, collect multiple water depth data, and estimate the thickness of the bottom sediment;

[0041] 10. The water depth calculation method is as follows:

[0042]

[0043] Where: h: water depth; c: speed of sound in water, which depends on water temperature and salinity of water, t: time difference from sound wave emission to reception;

[0044] The speed of sound is calculated as follows:

[0045] c = 1410 + 4.6 * T

[0046] Where: T water temperature;

[0047] The sediment thickness is calculated as follows:

[0048] h s = h 1 - h 2

[0049] Where: h s : sediment thickness, h 1 : initial water depth, h 2 : water depth of subsequent measurement;

[0050] The sediment volume is calculated as follows:

[0051] V = A * h s

[0052] Where: V: sediment volume; A: area of the expected region;

[0053] The area of the expected region is calculated as follows:

[0054]

[0055] Where: b 1 and b 2 : two boundary widths of the sedimentation area;

[0056] S5: Use the data of multiple measuring points to calculate the volume of the sediment through a mathematical model; the volume of the sediment can be estimated through the volume data;

[0057] S6: Operate the right-angled plate 20 to drive the cuboid 18 to move upward, releasing the clamping relationship between the second clamping plate 19 and the bottom inner wall of the built-in groove 15; move the right-angled plate 20 to the right to drive the hollowed-out plate 21 to move to the right, releasing the clamping relationship between the first clamping plate 16 and the inner part on the right side of the extension plate 14; move the collection box 11 downward to release the abutting relationship between the extension plate 14 and the bottom of the sliding plate 13; rotate the screw rod 25 to extricate the screw rod 25 from the screw groove 26, and move the transparent plate 5 to the left to debug the sonar receiver 6;

[0058] S7: Record all measurement data, including water depth, sediment thickness, and volume estimation results; analyze the data to evaluate the distribution and volume of the sediment, providing a basis for subsequent cleaning work.

[0059] Example: Measurement of reservoir sediment

[0060] The present invention needs to measure the sediment situation of a reservoir. The water temperature of the reservoir is 20°C. Two measurement points A and B are selected to estimate the thickness and volume of the sediment.

[0061] Implementation steps:

[0062] Step 1: Equipment preparation and deployment: Deploy the equipment body 1 into the reservoir to ensure that the waterproof acoustic wave emitter 12 and the sonar receiver 6 are at an appropriate depth underwater.

[0063] Step 2: Acoustic wave detection and data collection: Start the waterproof acoustic wave emitter 12 to emit acoustic wave signals. The sonar receiver 6 receives the reflected acoustic wave signals and records the time difference of the echo signals.

[0064] Step 3: Water depth calculation: At measurement point A, the time difference from the emission to the reception of the acoustic wave is 0.02 seconds.

[0065] Calculate the sound speed according to the formula c = 1410 + 4.6*T: c = 1410 + 4.6*20 = 1470 m / s.

[0066] According to the formula Calculate the water depth:

[0067] Step 4: Estimation of sediment thickness: Assume that the initial water depth at measurement point A is 15 meters and the current water depth is 14.7 meters.

[0068] According to the formula h s = h 1 - h 2 Calculate the sediment thickness: h s = 15 - 14.7 = 0.3 meters.

[0069] Step 5: Estimation of the volume of sediment: Assume that the width of the sedimentation area is 100 meters and the length is 200 meters, i.e., the area A = 100 * 200 = 20,000 square meters.

[0070] According to the formula V = A * h s Calculate the volume of sediment: V = 20,000 * 0.3 = 6,000 cubic meters.

[0071] Step 6: Repeated measurement: Repeat Steps 2 to 5 at measurement point B to obtain the water depth and sediment thickness.

[0072] Step 7: Data recording and analysis: Record the water depth, sediment thickness, and volume estimation results at measurement points A and B. Analyze the data to evaluate the distribution and volume of the sediment, providing a basis for subsequent cleaning work.

[0073] Equipment recovery and maintenance: After the measurement is completed, recover the equipment body 1 and perform necessary cleaning and maintenance.

[0074] Through the above embodiments, the thickness and volume of the sediment in a specific area of the reservoir can be estimated. This embodiment demonstrates how to use acoustic detection technology combined with a mathematical model to evaluate the underwater sediment situation, providing scientific data support for the management and maintenance of the reservoir.

[0075] The technical solution of the present invention is not limited to the limitations of the above specific embodiments. Any technical deformation made according to the technical solution of the present invention falls within the protection scope of the present invention.

Claims

1. A measuring device for detecting sedimentation in dense suspended matter water, characterized in that: include: The device body (1) is provided with a through groove (2) inside, a sliding plate (13) is slidably connected inside the through groove (2), the bottom of the sliding plate (13) is movably abutted against an extension plate (14), the bottom of the extension plate (14) is fixedly connected to a collection frame (11), a longitudinal groove is provided inside the device body (1), a threaded rod (9) is rotatably connected inside the longitudinal groove, a trapezoidal plate (27) is fixedly connected to the left side of the sliding plate (13), the trapezoidal plate (27) is threadedly sleeved on the outside of the threaded rod (9), a sonar receiver (6) is provided on the top of the device body (1), a waterproof sound wave releaser (12) is provided at the bottom of the device body (1), and the waterproof sound wave releaser (12) and the sonar receiver (6) are electrically connected.

2. A measuring device for detecting siltation in dense suspended matter water according to claim 1, characterized in that: The sliding plate (13) is provided with a built-in groove (15) inside, and a hollow plate (21) is slidably connected inside the built-in groove (15). A first clamping plate (16) is fixedly connected to the left side of the hollow plate (21), and the first clamping plate (16) is movably clamped inside the right side of the extension plate (14). A rectangular body (18) is slidably connected inside the hollow plate (21), and a second clamping plate (19) is fixedly connected to the bottom of the inner wall of the built-in groove (15). The second clamping plate (19) is movably clamped to the bottom of the inner wall of the built-in groove (15).

3. A measuring device for detecting siltation in dense suspended matter water according to claim 1, characterized in that: A circular frame (4) is fixedly connected to the top of the device body (1), a transparent plate (5) is slidably connected to the inside of the circular frame (4), a rectangular plate (24) is fixedly connected to the left side of the transparent plate (5), two screw rods (25) are rotatably connected to the inside of the rectangular plate (24), and two screw grooves (26) are arranged on the left side of the circular frame (4), and the two screw grooves (26) are both threadedly sleeved on the outside of the corresponding screw rods (25).

4. A measuring device for detecting siltation in dense suspended matter water according to claim 2, characterized in that: The hollow plate (21) is fixedly connected to a longitudinal plate (17) inside, the bottom of the longitudinal plate (17) is fixedly connected to a first spring (22), the bottom end of the first spring (22) is fixedly connected to the top of the rectangular parallelepiped (18), the right side of the hollow plate (21) is fixedly connected to a second spring (23), the right end of the second spring (23) is fixedly connected to the right side of the inner wall of the built-in groove (15).

5. A measuring device for detecting siltation in dense suspended matter water according to claim 1, characterized in that: A vertical groove (10) is provided on the left side of the inner wall of the through groove (2), and the right side of the trapezoidal plate (27) is slidably connected to the inside of the vertical groove (10).

6. A measuring device for detecting siltation in dense suspended matter water according to claim 1, characterized in that: The top of the device body (1) is fixedly connected to a protective shell (3), the interior of the protective shell (3) is fixedly connected to a partition (7), the bottom of the partition (7) is fixedly connected to a motor (8), and the output end of the motor (8) is fixedly connected to the top of the threaded rod (9).

7. A measuring device for detecting siltation in dense suspended matter water according to claim 2, characterized in that: A right-angle plate (20) is fixedly connected to the top of the rectangular parallelepiped (18), and the top of the right-angle plate (20) is slidably connected to the top of the sliding plate (13).

8. A method for measuring the amount of siltation in dense suspended matter water according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: deploy the device body (1) to the target water area, and ensure that the waterproof sonic releaser (12) and the sonar receiver (6) are located at an appropriate depth underwater; S2: Start the motor (8) inside the device body (1) to drive the threaded rod (9) to rotate, so that the trapezoidal plate (27) moves downward, cleans the garbage on the left side of the waterproof sound wave releaser (12), and adjusts the transparent plate (5) in the circular frame (4) to ensure that the sonar receiver (6) is not blocked so as to accurately receive the sound wave signal; S3: activating the waterproof sound wave releaser (12) to emit a sound wave signal, which propagates in the water and is reflected back after encountering underwater sediment or the ground. The sonar receiver (6) receives the reflected sound wave signal and records the time difference of the echo signal; S4: Combined with the speed of sound in water, the water depth is calculated using the time difference, and the above steps S1-S3 are repeated at different locations to collect multiple water depth data and estimate the thickness of the bottom sediment; S5: Using data from multiple measuring points, the volume of sediment is calculated through a mathematical model; the volume of sediment can be estimated through volume data; S6: operate the right-angle plate (20) to drive the cuboid (18) to move upwards, release the clamping relationship between the second clamping plate (19) and the bottom of the inner wall of the built-in groove (15); move the right-angle plate (20) to the right, drive the hollow plate (21) to move to the right, release the clamping relationship between the first clamping plate (16) and the right inner part of the extension plate (14); move the collection frame (11) downwards to release the abutment relationship between the extension plate (14) and the bottom of the sliding plate (13); rotate the screw rod (25) to extrude a thread relationship between the screw rod (25) and the screw groove (26), and move the transparent plate (5) to the left to debug the sonar receiver (6); S7: Record all measurements, including water depth, sediment thickness and volume estimates; analyze the data to assess the distribution and volume of sediment to provide a basis for subsequent cleanup work.

9. The measuring method of the measuring device for detecting siltation in dense suspended matter water according to claim 8, characterized in that: The water depth calculation method in step S4 is as follows: Where: h: water depth; c: speed of sound in water, which depends on water temperature and salinity; t: time difference between the emission and reception of sound waves; The speed of sound is calculated as follows: c=1410+4.6*T Where: T water temperature; The thickness of the sediment is calculated as follows: h s =h1-h2 Where: h s : sediment thickness, h1: initial water depth, h2: subsequent measured water depth; The volume of sediment is calculated as follows: V=A*h s Where: V: volume of sediment; A: area of ​​the expected area; The estimated area is calculated as follows: Where: b1 and b2: the two boundary widths of the siltation area.

Images