Slope shallow eroded and lost soil collecting device and method and using method of slope shallow eroded and lost soil collecting device

Abstract

The invention relates to the technical field of soil erosion monitoring, in particular to a slope shallow erosion lost soil collecting device and method and a using method thereof.The device comprises a round pipe, a filter screen and a collecting box, the interior of the round pipe is of a hollow structure, one end of the round pipe is sealed, and a through hole is formed in the other end of the round pipe; at least one groove is formed in the side wall of the circular pipe, every two adjacent grooves are formed in a spaced mode, the circular pipe is parallel to the ground, and the circular pipe is arranged in a slope; the filter screen is arranged above the groove in a covering manner; according to the device, the design that the outer circular pipe penetrates into the shallow layer of the slope body is adopted, so that the device can directly monitor the interior of the slope body, the limitation of monitoring only from the surface in the past is changed, and a foundation is laid for obtaining more comprehensive and accurate soil erosion data.

Description

Technical Field

[0001] The present invention relates to the technical field of soil erosion monitoring. Specifically, it relates to a device, method and usage method for collecting eroded soil in the shallow layer of a slope. Background Art

[0002] Soil erosion monitoring plays an important role in preventing soil erosion, protecting the ecological environment and land resources. Through soil erosion monitoring, the situation of soil erosion can be detected in a timely manner, providing accurate data support for subsequent prevention and control work. In existing soil and water loss monitoring, remote sensing monitoring is mainly used. Although this method can cover a large area, affected by spatial resolution and surface cover, it is difficult to accurately monitor the soil erosion situation in the shallow layer inside the slope body. As a result, in actual prevention and control work, there is a lack of accurate enough data guidance for the treatment of soil erosion in the shallow layer inside the slope body, affecting the overall effect of the prevention and control work. Summary of the Invention

[0003] The purpose of the present invention is to provide a device, method and usage method for collecting eroded soil in the shallow layer of a slope to improve the above problems. To achieve the above purpose, the technical solutions adopted by the present invention are as follows:

[0004] In the first aspect, the present application provides a device for collecting eroded soil in the shallow layer of a slope. The device includes: a round pipe, a filter screen and a collection box. The inside of the round pipe is a hollow structure. One end of the round pipe is sealed, and the other end of the round pipe is provided with a through hole. At least one groove is provided on the side wall of the round pipe, and adjacent two grooves are spaced apart. The round pipe is arranged parallel to the ground and is arranged inside the slope. The filter screen is arranged to cover above the groove. The collection box is arranged inside the round pipe through the through hole.

[0005] Optionally, a handle is provided on the collection box, and the handle is arranged on the side close to the through hole.

[0006] Optionally, at least two collection boxes are provided. At least two collection boxes form a collection box assembly. The collection box assembly includes a first collection box and a second collection box. The first collection box and the second collection box are arranged adjacent to each other, and the first collection box and the second collection box are detachably connected.

[0007] Optionally, each collection box in the collection box assembly is arranged in one-to-one correspondence with the groove.

[0008] Optionally, a T-shaped buckle is provided on the first collection box, and the T-shaped buckle is arranged at one end close to the second collection box. A lock is provided on the second collection box, and the lock is arranged at one end close to the first collection box.

[0009] In a second aspect, the present application provides a method for collecting soil eroded and lost from shallow slope erosion, the method comprising:

[0010] Obtaining the engineering geological information of the slope to be monitored, where the engineering geological information includes the geometric characteristics of the slope, the grading of soil particles, the physical and mechanical parameters of the soil, and the regional rainfall situation;

[0011] Performing numerical simulation analysis based on the engineering geological information of the slope to be monitored, simulating the soil erosion situation under the action of intense rainfall infiltration, and determining the maximum particle size and depth of the eroded and lost soil;

[0012] Determining the hole size of the filter screen based on the maximum particle size of the eroded and lost soil, and determining the length of the device for collecting soil eroded and lost from shallow slope erosion based on the depth of the eroded and lost soil;

[0013] Designing an on-site monitoring plan, including the number and layout positions of the devices for collecting soil eroded and lost from shallow slope erosion;

[0014] Arranging the soil collection devices according to the on-site monitoring plan.

[0015] In a third aspect, the present application provides a method for using a device for collecting soil eroded and lost from shallow slope erosion, the method comprising:

[0016] Obtaining the geometric characteristics of the slope;

[0017] Determining the number of devices for collecting soil eroded and lost from shallow slope erosion to be set according to the geometric characteristics of the slope;

[0018] Spacedly arranging the devices for collecting soil eroded and lost from shallow slope erosion inside the slope according to the set number;

[0019] Collecting the eroded soil using each of the devices for collecting soil eroded and lost from shallow slope erosion to obtain the collection situation;

[0020] Determining the erosion line of the monitored particle size particles according to the collection situation.

[0021] The beneficial effects of the present invention are as follows:

[0022] By arranging the hollow circular tube inside the slope body, the present invention can directly monitor the inside of the slope body, changing the limitation of only monitoring from the surface in the past. Then, covering the filter screen on the groove opened on the circular tube can effectively filter the soil particles of the soil and water loss inside the slope body caused by rainfall infiltration erosion, ensuring that only the soil particles meeting the monitoring requirements enter the collection box, and improving the accuracy of the monitoring data.

[0023] Other features and advantages of the present invention will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the embodiments of the present invention. The objectives and other advantages of the present invention may be realized and attained by the structure particularly pointed out in the written description, claims, as well as the drawings. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of the device for collecting eroded soil on the shallow slope in the embodiments of the present invention.

[0026] Figure 2 It is Figure 1 a sectional view of.

[0027] Figure 3 It is a schematic diagram of erosion lines of particles with different particle sizes.

[0028] Reference numerals in the drawings: 1, circular tube; 2, filter screen; 3, collection box; 4, handle; 5, first collection box; 6, second collection box; 7, T-shaped buckle; 8, lock. Detailed Description of the Embodiments

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0030] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present invention, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0031] Example 1

[0032] As Figure 1 shown, this embodiment provides a device for collecting eroded soil in the shallow layer of a slope, including a circular pipe 1, a filter screen 2, and a collection box 3. The interior of the circular pipe 1 is a hollow structure. One end of the circular pipe 1 is sealed, and the other end is provided with a through hole. At least one groove is provided on the side wall of the circular pipe 1, and adjacent two grooves are spaced apart. The circular pipe 1 is arranged parallel to the ground and is disposed inside the slope. The filter screen 2 is arranged to cover above the groove. The collection box 3 is arranged inside the circular pipe 1 through the through hole. By arranging the hollow circular pipe 1 inside the slope body, it can directly monitor the inside of the slope body, changing the limitation of only monitoring from the surface in the past, and laying a foundation for obtaining more comprehensive and accurate soil erosion data. The circular pipe 1 is completely hollow and one end is sealed. This design is convenient for the installation of subsequent components and can ensure the stability of the device inside the slope body, preventing external factors from interfering with the monitoring results.

[0033] In a specific embodiment of the present disclosure, a handle 4 is provided on the collection box 3, and the handle 4 is arranged on the side close to the through hole. By providing the handle 4, it is convenient for the disassembly and installation of the collection box 3.

[0034] As Figure 2 shown, in a specific embodiment of the present disclosure, at least two collection boxes 3 are provided. At least two collection boxes 3 form a collection box assembly. The collection box assembly includes a first collection box 5 and a second collection box 6. The first collection box 5 and the second collection box 6 are arranged adjacent to each other, and are detachably connected between the first collection box 5 and the second collection box 6. Each collection box 3 in the collection box assembly is arranged in one-to-one correspondence with the groove. The collection boxes 3 inside the circular pipe 1 are arranged in a segmented manner and are in one-to-one correspondence with the position of the filter screen 2, greatly improving the accuracy and comprehensiveness of soil particle collection. Each collection box 3 corresponds to the filter screen 2 in a specific area, and can collect soil particles at different positions respectively, which helps researchers analyze the soil erosion differences at different depths and positions of the slope body.

[0035] In a specific embodiment of the present disclosure, a T-shaped buckle 7 is provided on the first collection box 5. The T-shaped buckle 7 is arranged at one end close to the second collection box 6. A lock catch 8 is provided on the second collection box 6. The lock catch 8 is arranged at one end close to the first collection box 5. Adjacent two collection boxes 3 are connected by the T-shaped buckle 7 and the lock catch 8. This connection method is not only simple and reliable, convenient for disassembly and installation, facilitating the regular collection of soil samples, but also can effectively restrain the horizontal displacement after connection, ensuring the stability of the collection box inside the slope body and guaranteeing the smooth progress of the monitoring process. It should be noted that the grooved area at the upper part of the collection box 3 is slightly larger than the projection area of the filter screen 2. This design can ensure that the soil particles of soil and water loss are completely collected, avoiding omission, and further improving the integrity and reliability of the monitoring data.

[0036] Example 2

[0037] This embodiment provides a method for collecting eroded soil from the shallow layer of a slope, including the following steps:

[0038] Step S1: Obtain the engineering geological information of the slope to be monitored. The engineering geological information includes the geometric characteristics of the slope, the gradation of soil particles, the physical and mechanical parameters of the soil, and the regional rainfall situation;

[0039] In this step, when obtaining the engineering geological information of the slope to be monitored, it covers the geometric characteristics of the slope, the gradation of soil particles, the physical and mechanical parameters of the soil, and the regional rainfall situation. This comprehensive information collection fully considers various factors affecting soil erosion, which is different from the traditional monitoring methods that only focus on single or partial factors. By comprehensively mastering these basic information, it provides a solid data support for the subsequent analysis and monitoring work, ensuring that the monitoring results can accurately reflect the actual situation. Conducting information collection for a specific slope makes the monitoring work more targeted, avoiding the "one-size-fits-all" monitoring mode, and being able to better meet the soil erosion monitoring needs under different geological conditions.

[0040] Step S2: Based on the engineering geological information of the slope to be monitored, conduct numerical simulation analysis to simulate the soil erosion situation under the action of strong rainfall infiltration, and determine the maximum particle size and depth of the eroded soil;

[0041] In this step, numerical simulation technology is used to predict the key parameters of soil erosion in advance. By simulating the erosion situation under different rainfall conditions, researchers can more deeply understand the potential laws and changing trends of soil erosion, providing a scientific basis for the subsequent device customization and monitoring plan design, helping to improve the accuracy and effectiveness of the monitoring work, and being able to make full preparations before the actual rainfall occurs and plan the monitoring key points and directions in advance.

[0042] In step S2, steps S21, S22, S23, S24 and S25 are further included, specifically including:

[0043] Step S21: Construct a simulation model according to the engineering geological information;

[0044] In this step, the slope geometry information included in the engineering geological information obtained by UAV radar mapping is imported into the numerical analysis software, and the numerical analysis software includes but is not limited to PFC.

[0045] Step S22: Obtain the microscopic parameters of the parallel bond model corresponding to the cohesion and friction angle of the undisturbed soil through triaxial tests and calibrate the parameters of the simulation model to obtain the model after parameter calibration;

[0046] In this step, the microscopic parameters of the parallel bond model corresponding to the cohesion and friction angle of the undisturbed soil are obtained through the triaxial test in the PFC software to ensure that the physical and mechanical parameters of the model soil are the same as those of the undisturbed soil.

[0047] Step S23: Obtain the initial rainfall conditions;

[0048] In this step, the fluid grid is imported and the initial rainfall conditions such as rainfall intensity and boundary, water content and permeability coefficient are set.

[0049] Step S24: Set the initial rainfall conditions for the model after parameter calibration and iteratively solve the model after parameter calibration using the Richards control equation to determine the range of the rainfall seepage field;

[0050] Step S25: Determine the depth of the eroded and lost soil according to the range of the rainfall seepage field.

[0051] Step S3: Determine the hole size of the filter screen 2 based on the maximum particle size of the eroded and lost soil, and determine the length of the slope shallow layer eroded and lost soil collection device based on the depth of the eroded and lost soil;

[0052] In this step, the hole size of the filter screen 2 is customized according to the maximum particle size of the eroded and lost soil obtained from the numerical simulation analysis, and the length of the slope shallow layer eroded and lost soil collection device is customized according to the influence depth. This customized design abandons the generality drawbacks of traditional monitoring devices and realizes the precise matching of the device with the actual monitoring requirements. According to the specific conditions of different slopes, the key parameters of the device are accurately designed, which can maximize the accuracy of the device for monitoring soil erosion on specific slopes.

[0053] Step S4: Design a field monitoring plan, including the quantity and layout position of the slope shallow layer eroded and lost soil collection devices;

[0054] In this step, when designing the on-site monitoring plan, the number and layout of the slope shallow erosion soil collection devices are fully considered. By scientifically and rationally planning the layout of the devices, it is ensured that the soil erosion conditions at different locations of the slope can be fully and accurately monitored. This precise design avoids the occurrence of monitoring blind spots and improves the integrity and reliability of the monitoring data.

[0055] Step S5: Arrange a soil collection device according to the on-site monitoring plan.

[0056] In this step, according to the diameter of the external hollow circular tube 1, a horizontal hole is drilled at the designed device layout position, and the drilling depth is consistent with the length of the external hollow circular tube 1; the external hollow circular tube is driven into the drilled hole, and the multiple collection boxes 3 arranged in sections are connected in sequence and pushed into the hollow circular tube 1. This standardized installation process ensures the correct installation and stable operation of the device in the slope, reduces the monitoring error caused by improper installation, and improves the reliability and repeatability of the monitoring work.

[0057] Example 3

[0058] This embodiment provides a method for using a device for collecting soil lost from shallow erosion on a slope, comprising the following steps:

[0059] Step S01, obtaining geometric features of the slope;

[0060] Step S02, determining the number of slope shallow erosion soil collection devices to be set according to the geometric characteristics of the slope;

[0061] Step S03, setting the slope shallow erosion and loss soil collection devices at intervals inside the slope according to the set number;

[0062] Step S04, collecting the eroded soil using each of the shallow erosion and loss soil collection devices on the slope to obtain the collection situation;

[0063] Step S05: determining the erosion line of the particles of the monitored particle size according to the collection situation.

[0064] The step S05 also includes step S051, step S052, step S053 and step S054, which specifically include:

[0065] Step S051, determining the position of the marking point according to the collection situation of the collecting box 3 of each slope shallow erosion loss soil collection device, and obtaining the position information, wherein the marking point is the position corresponding to the collecting box 3 where the soil is collected;

[0066] Step S052, marking each collection box 3 according to the position information to obtain a marking point;

[0067] Step S053: Number the marked points included in each slope shallow erosion soil collection device in sequence from left to right to obtain numbering information;

[0068] Step S054: Draw an erosion line for monitoring particle sizes according to the numbering information.

[0069] In this step, fit a curve between the marked points with the same numbering information in each slope shallow erosion soil collection device and the foot of the slope to obtain an erosion line for monitoring particle sizes, as Figure 3 shown.

[0070] In this embodiment, the collection box is regularly removed to collect the soil loss amount, and indoor sieving is carried out. The soil content in different particle size sections is recorded, an erosion curve is drawn, and the rainfall situation in the area during the period is recorded. This data processing method of the system can not only obtain rich soil erosion data, but also establish a correlation model between soil erosion and factors such as rainfall through data analysis, providing strong support for in-depth research on the mechanism of soil erosion. Draw an erosion curve, a soil erosion depth curve, etc., to visually display the changing trend of soil erosion, facilitating researchers to timely discover problems and take corresponding measures.

[0071] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0072] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0073] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0074] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A device for collecting eroded soil in the shallow layer of a slope, characterized in that Comprising: A circular pipe (1), the interior of the circular pipe (1) is a hollow structure, one end of the circular pipe (1) is sealed, the other end of the circular pipe (1) is provided with a through hole, at least one groove is provided on the side wall of the circular pipe (1), two adjacent grooves are arranged at intervals, the circular pipe (1) is arranged parallel to the ground, and the circular pipe (1) is arranged inside the slope; A filter screen (2), the filter screen (2) is arranged to cover above the groove; A collection box (3), the collection box (3) is arranged inside the circular pipe (1) through the through hole.

2. The slope shallow erosion soil collection device according to claim 1, characterized in that: A handle (4) is arranged on the collection box (3), and the handle (4) is arranged on the side close to the through hole.

3. The slope shallow erosion soil collection device according to claim 1, characterized in that: At least two collection boxes (3) are provided, and at least two collection boxes (3) form a collection box assembly. The collection box assembly includes a first collection box (5) and a second collection box (6). The first collection box (5) and the second collection box (6) are arranged adjacent to each other, and the first collection box (5) and the second collection box (6) are detachably connected.

4. The slope shallow erosion soil collection device according to claim 3, characterized in that: Each collection box (3) in the collection box assembly is arranged in one-to-one correspondence with the groove.

5. The slope shallow erosion soil collection device according to claim 3, characterized in that: A T-shaped buckle (7) is arranged on the first collection box (5), the T-shaped buckle (7) is arranged at one end close to the second collection box (6), and a lock (8) is arranged on the second collection box (6), and the lock (8) is arranged at one end close to the first collection box (5).

6. A method for collecting eroded soil in the shallow layer of a slope, which uses the device for collecting eroded soil in the shallow layer of a slope according to any one of claims 1-5, characterized in that, Including the following steps: Obtain the engineering geological information of the slope to be monitored, and the engineering geological information includes the geometric characteristics of the slope, the gradation of soil particles, the physical and mechanical parameters of the soil, and the regional rainfall situation; Based on the engineering geological information of the slope to be monitored, perform numerical simulation analysis, simulate the soil erosion situation under the action of strong rainfall infiltration, and determine the maximum particle size and depth of the eroded and lost soil; Based on the maximum particle size of the eroded and lost soil, determine the hole size of the filter screen (2), and based on the depth of the eroded and lost soil, determine the length of the slope shallow layer eroded and lost soil collection device; Design a field monitoring plan, including the number and layout positions of the slope shallow layer eroded and lost soil collection devices; Arrange the soil collection devices according to the field monitoring plan.

7. The method for collecting eroded soil in the shallow layer of a slope according to claim 6, characterized in that The step of simulating the soil erosion situation under the action of strong rainfall infiltration and determining the maximum particle size and depth of the eroded and lost soil includes: Construct a simulation model according to the engineering geological information; Obtain the mesoscopic parameters of the parallel cementation model corresponding to the cohesion and friction angle of the undisturbed soil according to the triaxial test and calibrate the parameters of the simulation model to obtain the model after parameter calibration; Obtain the initial rainfall conditions; Set the initial rainfall conditions for the model after parameter calibration and iteratively solve the model after parameter calibration using the Richards control equation to determine the range of the rainfall seepage field; Determine the depth of the eroded and lost soil according to the range of the rainfall seepage field.

8. A method for using a device for collecting eroded soil on the shallow layer of a slope, characterized in that, Including: Obtain the geometric characteristics of the slope; Determine the number of slope shallow layer eroded and lost soil collection devices according to the geometric characteristics of the slope; Arrange the slope shallow layer eroded and lost soil collection devices at intervals inside the slope according to the set number. Collect the eroded soil using each of the slope shallow erosion loss soil collection devices to obtain the collection situation; Determine the erosion line of the monitored particle size particles according to the collection situation.

9. The method for using the soil eroded and lost from the shallow layer of the slope according to claim 8, characterized in that, Determining the erosion line of the monitored particle size particles according to the collection situation includes: Determine the position of the marking points according to the collection situation of the collection box (3) of each slope shallow erosion loss soil collection device to obtain position information, where the marking points are the positions corresponding to the collection boxes (3) where soil is collected; Mark each collection box (3) according to the position information to obtain marking points; Number the marking points included in each slope shallow erosion loss soil collection device in sequence from left to right to obtain numbering information; Draw the erosion line of the monitored particle size particles according to the numbering information.

10. The method for using the soil eroded and lost from the shallow layer of the slope according to claim 9, characterized in that, Drawing the erosion line of the monitored particle size particles according to the numbering information includes: Fit the marking points with the same numbering information of each slope shallow erosion loss soil collection device to the toe of the slope with a curve to obtain the erosion line of the monitored particle size particles.

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