Experimental device and method for landslide movement process with spatial variability of strength parameters

Abstract

The present invention belongs to the technical field of simulating landslide movement, and specifically relates to a test device and test method for a landslide movement process with spatial variability of strength parameters, wherein the test device includes a model box, a landslide model making mechanism, a retaining wall and a measuring mechanism. The present invention sets random field parameters, and performs regional grid division on several groups of different random field samples generated under each set of random field parameters; calculates the average value of the strength parameters in each region, and establishes a connection with a sand group with a similar strength parameter; fills all regions with sand groups of corresponding particle sizes with the help of aluminum partitions and compacts them to form a landslide model; and records the movement process of the landslide model and the strain and stress of the retaining wall through a measuring mechanism. The present invention takes into account the spatial variability of heterogeneous landslides, realizes the extension of the spatial variability model test technology of clay soil to the test of the landslide movement process, and solves the problem of converting the theoretical random field presented by the software into an actual random field.

Description

Technical Field

[0001] The invention belongs to the technical field of simulating landslide movement, and in particular relates to a test device and a test method for a landslide movement process with spatial variability of intensity parameters. Background Art

[0002] At present, landslide is a major form of geological disasters. Due to its long flow distance, fast flow speed and strong impact, it has caused huge losses of life and property. Therefore, in-depth research on the disaster mechanism of landslide is of great significance for disaster prevention and mitigation. In addition, the property parameters of rock and soil have spatial variability, that is, the property parameters at a certain position are different from those at other positions, but there is a certain correlation. This property of rock and soil materials has a significant impact on the dynamic characteristics of landslides, such as sliding distance and sliding speed.

[0003] Existing model test research focuses on the spatial variability of clay soils, but there is still a lack of corresponding test equipment and test methods for the spatial variability of coarse-grained soils. In addition, landslides can cause damage to retaining wall structures, but the existing research methods are highly dependent on computer numerical simulations and are difficult to verify with experimental methods. Therefore, it is necessary to develop a test device and test method for the spatial variability of strength parameters in landslide movement processes. Summary of the invention

[0004] The present invention provides a test device and a test method for a landslide movement process with spatial variability of strength parameters, which takes into account the spatial variability of heterogeneous landslides, realizes the extension of the spatial variability model test technology of clay soil to the test of landslide movement processes, and solves the problem of converting the theoretical random field presented by the software into an actual random field.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a test device for the movement process of a landslide with spatial variability of strength parameters, the test device is used to simulate the landslide working condition in which the strength parameters of rock and soil have spatial variability characteristics, the test device includes a model box, a landslide model making mechanism, a retaining wall and a measuring mechanism, wherein:

[0006] The model box is used for conducting the landslide movement process test, and the model box includes a model box body, a broken line segment, a straight line segment, and a baffle;

[0007] One side wall of the model box body along the length direction is transparent and has grid lines drawn thereon for landslide displacement analysis;

[0008] A broken line segment is formed by a plurality of first bottom plates connected in sequence, wherein the plurality of first bottom plates of the broken line segment are arranged in a broken line shape inside the model box body along the landslide shape to be tested, and the plurality of first bottom plates are fixed inside the model box body;

[0009] A straight line segment is formed by a plurality of second bottom plates connected in sequence, wherein the plurality of second bottom plates of the straight line segment are laid flat along the bottom surface of the model box body in a direction away from the folded line segment;

[0010] The baffle is installed on a first bottom plate of the broken line segment, the installation position of the baffle corresponds to the height of the simulated landslide, and the angle between the baffle and the first bottom plate is the angle of the simulated landslide;

[0011] The space between the baffle plate and the first bottom plate forms a landslide model making area, in which sand groups with different particle sizes are made into landslide models by a landslide model making mechanism;

[0012] The landslide model making mechanism includes an aluminum partition, which is a structure with a hollow through-hole in the middle formed by four panels connected end to end;

[0013] The retaining wall simulates the blocking structure of the landslide, and the retaining wall is set on the second bottom plate of the straight section;

[0014] The measuring mechanism is used to measure the strain and stress of the retaining wall and obtain the deformation during the landslide movement. The measuring mechanism includes a strain sensor and a stress sensor arranged on the retaining wall, and a high-speed camera arranged outside the model box body.

[0015] As a further preferred embodiment of the present invention, the shorter side of the inner circle of the aluminum partition is the same as the side length of the grid in the grid line, and the longer side of the outer circle of the aluminum partition is the same as the length in the width direction of the model box body.

[0016] A test method for a test device of a landslide movement process with spatial variability of intensity parameters is also provided, comprising the following steps:

[0017] Step 1, determining the geometric shape of the landslide model: for the landslide condition in which the strength parameters of the rock and soil mass to be simulated have spatial variation characteristics, determining the geometric shape of the landslide model under this condition, thereby determining the angle between the baffle and the first bottom plate;

[0018] Step 2: Prepare n groups of sandy soils with different strength parameters:

[0019] Prepare n groups of sandy soils with different particle sizes, conduct basic physical property tests on each group of sandy soils, and obtain the density, void ratio, water content, and saturation of each group of sandy soils; conduct consolidation tests on each group of sandy soils, and obtain the compression coefficient and compression index of each group of sandy soils; conduct direct shear tests on each group of sandy soils, and obtain the strength index of each group of sandy soils; the prepared n groups of sandy soils with different particle sizes represent sandy soils with different strength index parameters;

[0020] Step 3: Get the strength index of each area divided in the landslide model making area:

[0021] Step 3-1, according to the grid lines drawn on the model box body, the landslide model making area is divided into several areas along the grid lines;

[0022] Step 3-2, setting random field parameters in the random field generation software, the random field parameters including the mean, standard deviation and fluctuation range of the intensity index parameters, and generating random field samples in the random field generation software;

[0023] Step 3-3, meshing the random field sample in step 3-2, wherein the meshes divided on the random field sample correspond one to one with the meshes drawn on the model box body;

[0024] Step 3-4: Combine the grid divided on the random field sample in step 3-3 with the geometric shape of the landslide model determined in step 1, and obtain that the area in the grid divided on the random field sample that is within the geometric shape of the landslide model is m 1 , calculate m 1 The average value of the intensity index of each area in the region;

[0025] Step 3-5: According to the m calculated in step 3-4 1 The average value of the intensity index of each area in the 3-1 region corresponds to the several areas divided in the landslide model making area in step 3-1, that is, the m of the corresponding landslide model in the landslide model making area in step 3-1 is obtained. 1 Strength index of a region;

[0026] Step 4: Make a landslide model: From the n groups of sands with different strength parameters prepared in step 2, select the m sands in the landslide model making area obtained in steps 3-5. 1 A sand and soil group with a regional strength index is selected, and then the corresponding sand and soil groups are sequentially selected from the first bottom plate to the baffle plate from bottom to top to form a landslide model in the landslide model making area;

[0027] Step 5, conducting a landslide movement process test: removing the baffle, so that the landslide model slides along the first bottom plate of the broken line segment toward the second bottom plate of the straight line segment until it contacts the retaining wall until the landslide model stops sliding. During the sliding of the landslide model, the complete sliding process of the landslide model is recorded by a high-speed camera, and the strain and stress of the retaining wall under the impact of the landslide model are measured by a strain sensor and a stress sensor;

[0028] Step 6: Based on the complete sliding process of the landslide model recorded in step 5 and the measured strain and stress of the retaining wall under the impact of the landslide model, draw the sweep range and velocity time history curve of the landslide model, and then perform statistical analysis on the sweep range and peak velocity.

[0029] As a further preferred embodiment of the present invention, in step 4, the landslide model is made in the landslide model making area, and there are the following two working conditions:

[0030] Working condition 1, m 1 The area with incomplete cross-sectional shape in each area is directly filled with sand and soil groups with corresponding strength indexes;

[0031] Working condition 2, m 1 For the area with a complete grid cross-section in each area, the aluminum partition is first aligned with the grid at the corresponding position on the model box body, and then the sand group with the corresponding strength index is filled into the aluminum partition.

[0032] As a further preferred embodiment of the present invention, in order to maintain the stability of the first bottom plates of the fold line segment, a plurality of supporting columns are arranged below the first bottom plates of the fold line segment.

[0033] Through the above technical solution, compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention realizes the production of landslide movement process model and takes into account the spatial variation characteristics of heterogeneous landslides, showing the different properties of intensity parameters at different positions of landslides, and solves the problem of converting the theoretical random field presented by the software into the actual random field.

[0035] 2. The present invention extends the model test technology of spatial variability of clay to the model test of landslide movement process.

[0036] 3. The present invention uses random field theory to generate random field samples that are compatible with the model size, divides the samples into regions, and establishes connections with sand groups of different particle sizes, taking into account the spatial variation characteristics of heterogeneous landslides.

[0037] 4. The present invention can take into account the influence of the spatial variation characteristics of the strength parameters of the sand group, record the complete sliding process of the landslide model through high-speed camera equipment, and use strain sensors and stress sensors to measure the strain and stress data of the retaining wall under the impact of the landslide, which can provide a reference for the prevention and control of landslide geological disasters. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0039] Figure 1 It is a schematic diagram of the overall structure of the test device of the present invention;

[0040] Figure 2 It is a schematic diagram of sand and soil group paving in the landslide model making of the present invention;

[0041] Figure 3 It is a schematic diagram of the structure of the aluminum partition of the present invention;

[0042] Figure 4 It is a technical flow chart of making the landslide model of the present invention.

[0043] In the figure: 1. Model box body; 2. Grid lines; 3. First bottom plate; 4. Sand group; 5. Baffle; 6. Column; 7. High-speed camera; 8. Retaining wall; 9. Second bottom plate; 10. Hammer; 11. Funnel; 12. Aluminum partition. DETAILED DESCRIPTION

[0044] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0045] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second" and the like do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0046] Example 1

[0047] This embodiment provides a preferred implementation scheme. Figures 1 to 4 As shown, a test device for a landslide movement process with spatial variability of strength parameters is used to simulate a landslide condition in which the strength parameters of a rock and soil body have spatial variability characteristics. The test device includes a model box, a landslide model making mechanism, a retaining wall 8 and a measuring mechanism, wherein:

[0048] The model box is used for conducting a landslide movement process test, and the model box comprises a model box body 1 , a broken line segment, a straight line segment, and a baffle 5 .

[0049] One side wall of the model box body 1 along the length direction is transparent and has grid lines 2 drawn thereon for landslide displacement analysis. Figure 1 As shown, grid lines 2 are drawn on the front of the model box body 1.

[0050] The above-mentioned folded line segment is composed of a plurality of first bottom plates 3 connected in sequence, and the plurality of first bottom plates 3 of the folded line segment are arranged in a folded line shape along the landslide shape to be tested inside the model box body 1, and the plurality of first bottom plates 3 are fixed inside the model box body 1. The above-mentioned straight line segment is composed of a plurality of second bottom plates 9 connected in sequence, and the plurality of second bottom plates 9 of the straight line segment are laid flat along the bottom surface of the model box body 1 in a direction away from the folded line segment. Specifically, as Figure 1As shown, one end of the broken line segment is connected to the left side wall of the model box body 1, the other end of the broken line segment contacts the bottom wall of the model box body 1 and is connected to one end of the straight line segment, and the other end of the straight line segment extends flat to the bottom of the right side wall of the model box body 1.

[0051] The baffle 5 is installed on a first bottom plate 3 of the broken line segment, the installation position of the baffle 5 corresponds to the height of the simulated landslide, and the angle between the baffle 5 and the first bottom plate 3 is the angle of the simulated landslide. Figure 1 As shown, one long side of the baffle 5 contacts the first bottom plate 3, and the two short sides of the baffle 5 contact the inner wall of the model box body 1, that is, the long side of the baffle 5 is the same as the inner circle width of the model box body 1, and the baffle 5 is directly clamped in the model box body 1, and the angle between the baffle 5 and the first bottom plate 3 is manually adjusted. Preferably, the angle between the baffle 5 and the first bottom plate 3 ranges from 0° to 40°.

[0052] Furthermore, the space between the baffle plate 5 and the first bottom plate 3 forms a landslide model making area. Specifically, Figure 1 As shown, the landslide model making area is the space between the left side of the baffle 5 and the first bottom plate 3. In the landslide model making area, the sand groups 4 with different particle sizes are made into landslide models by the landslide model making mechanism.

[0053] The above-mentioned landslide model making mechanism includes an aluminum partition 12, such as Figure 2 As shown, the aluminum partition 12 is a structure with four panels connected end to end and a hollow through-hole in the middle. Specifically, the shorter side of the inner circle of the aluminum partition 12 is the same as the side length of the grid in the grid line 2, and the longer side of the outer circle of the aluminum partition 12 is the same as the length in the width direction of the model box body 1.

[0054] The retaining wall 8 simulates a landslide blocking structure, and the retaining wall 8 is arranged on the second bottom plate 9 of the straight section; preferably, the retaining wall 8 is rigid.

[0055] The above-mentioned measuring mechanism is used to measure the strain and stress of the retaining wall 8 and obtain the deformation during the landslide movement. The measuring mechanism includes a strain sensor and a stress sensor arranged on the retaining wall 8, and a high-speed camera 7 arranged outside the model box body 1. Specifically, the high-speed camera 7 is arranged on the top of the model box body 1 and on the side of the model box body 1 where the grid lines 2 are drawn.

[0056] Furthermore, in order to maintain the stability of the folding line segment, a plurality of supporting columns 6 are arranged below the first bottom plates 3 of the folding line segment.

[0057] This embodiment also provides a test method for a test device of a landslide movement process with spatial variability of intensity parameters, which specifically includes the following steps:

[0058] Step 1, determining the geometric shape of the landslide model: for the landslide condition in which the strength parameters of the rock and soil mass to be simulated have spatial variation characteristics, determine the geometric shape of the landslide model under this condition, thereby determining the angle between the baffle 5 and the first bottom plate 3;

[0059] Specifically, according to the included angle between the baffle plate 5 and the first bottom plate 3 determined in step 1, the baffle plate 5 is installed at a corresponding position on the straight line segment.

[0060] Step 2: Prepare n groups of sandy soils with different strength index parameters 4:

[0061] Prepare n groups of sandy soil groups 4 with different particle sizes, conduct basic physical property tests on each group of sandy soil groups 4, and obtain the density, porosity, water content, and saturation of each group of sandy soil groups 4. The above parameters are important factors affecting the shear strength of the soil body, and the uniformity of each group of sandy soil groups 4 can be understood to predict the deformation and strength properties of the sandy soil groups 4; conduct consolidation tests on each group of sandy soil groups 4 to obtain the compression coefficient and compression index of each group of sandy soil groups 4, judge the deformation of each group of sandy soil groups 4 under stress, and assist in judging the correctness of the strength index obtained by the direct shear test; conduct direct shear tests on each group of sandy soil groups 4 to obtain the strength index of each group of sandy soil groups 4; the prepared n groups of sandy soil groups 4 with different particle sizes represent sandy soil groups 4 with different strength parameters;

[0062] Step 3: Get the strength index of each area divided in the landslide model making area, such as Figure 4 As shown:

[0063] Step 3-1, according to the grid lines 2 drawn on the model box body 1, the landslide model making area is divided into several areas along the grid lines 2;

[0064] Step 3-2, setting random field parameters in the random field generation software, the random field parameters including the mean, standard deviation and fluctuation range of the intensity index parameters, and generating random field samples in the random field generation software according to the random field parameters;

[0065] Step 3-3, gridding the random field sample in step 3-2, wherein the grids divided on the random field sample correspond one to one with the grids drawn on the model box body 1;

[0066] Step 3-4: Combine the grid divided on the random field sample in step 3-3 with the geometric shape of the landslide model determined in step 1, and obtain that the area in the grid divided on the random field sample that is within the geometric shape of the landslide model is m 1 , calculate m 1 The average value of the intensity index of each area in the region;

[0067] Step 3-5: According to the m calculated in step 3-41 The average value of the intensity index of each area in the 3-1 region corresponds to the several areas divided in the landslide model making area in step 3-1, that is, the m of the corresponding landslide model in the landslide model making area in step 3-1 is obtained. 1 Strength index of a region;

[0068] Step 4: Make a landslide model: From the n groups of sands 4 with different strength parameters prepared in step 2, select the m sands in the landslide model making area obtained in steps 3-5. 1 The sand and soil groups 4 with similar strength indexes in each region are selected. Specifically, the sand and soil groups 4 with an error of ±5% with the required strength index can be selected. Then, the selected corresponding sand and soil groups 4 are sequentially formed into a landslide model in the landslide model making area from the first bottom plate 3 to the baffle plate 5 from bottom to top.

[0069] Specifically, in step 4, a landslide model is made in the landslide model making area, with the following two working conditions:

[0070] Working condition 1, m 1 The area with incomplete cross-sectional shape in each area is directly filled with sand group 4 corresponding to the strength index;

[0071] Working condition 2, m 1 For the area whose cross-sectional shape is a complete grid, the aluminum partition 12 is first aligned with the grid at the corresponding position on the model box body 1, and then the aluminum partition 12 is filled with a sand group 4 with a corresponding strength index.

[0072] Furthermore, during the entire filling process, the sand group 4 can be compacted by the hammer 10 ; in order to facilitate the filling of the sand group 4 , the filling position range of the sand group 4 is controlled by the funnel 11 .

[0073] Step 5, conducting a landslide movement process test: removing the baffle 5, so that the landslide model slides along the first bottom plate 3 of the broken line segment toward the second bottom plate 9 of the straight line segment until it contacts the retaining wall 8 until the landslide model stops sliding. During the sliding of the landslide model, the complete sliding process of the landslide model is recorded by a high-speed camera 7, and the strain and stress of the retaining wall 8 under the impact of the landslide model are measured by a strain sensor and a stress sensor;

[0074] Specifically, because the baffle 5 is stuck inside the model box body 1, the baffle 5 can be removed by the operator only needing to instantly pull out the baffle 5 along the direction where the baffle 5 is located.

[0075] Step 6: Draw the sweep range and velocity time history curve of the landslide model through the complete sliding process of the landslide model recorded in step 5 and the measured strain and stress of the retaining wall 8 under the impact of the landslide model, and then perform statistical analysis on the sweep range and peak velocity.

[0076] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0077] The meaning of "and / or" described in this application means that the situations where each exists alone or both exist at the same time are included.

[0078] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

[0079] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An experimental method for statistically analyzing the landslide movement process with spatial variability of intensity parameters, characterized in that: The following steps are involved: Step 1, determining the geometric shape of the landslide model in the test device: for a landslide condition in which the strength parameters of the rock and soil mass to be simulated have spatial variation characteristics, determining the geometric shape of the landslide model under this condition, thereby determining the angle between the baffle (5) and the first bottom plate (3); Step 2: Prepare n groups of sandy soils with different strength parameters (4): Prepare n groups of sandy soil groups (4) with different particle sizes, conduct basic physical property tests on each group of sandy soil groups (4) to obtain the density, void ratio, water content, and saturation of each group of sandy soil groups (4); conduct consolidation tests on each group of sandy soil groups (4) to obtain the compression coefficient and compression index of each group of sandy soil groups (4); Performing a direct shear test on each sand soil group (4) to obtain a strength index of each sand soil group (4); preparing n groups of sand soil groups (4) with different particle sizes to represent sand soil groups (4) with different strength index parameters; Step 3: Get the strength index of each area divided in the landslide model making area: Step 3-1, according to the grid lines (2) drawn on the model box body (1), the landslide model making area is divided into a plurality of areas along the grid lines (2); Step 3-2, setting random field parameters in the random field generation software, the random field parameters including the mean, standard deviation and fluctuation range of the intensity index parameters, and generating random field samples in the random field generation software; Step 3-3, gridding the random field sample in step 3-2, wherein the grids divided on the random field sample correspond one to one with the grids drawn on the model box body (1); Step 3-4, combining the grid divided on the random field sample in step 3-3 with the geometric shape of the landslide model determined in step 1, obtaining m1 areas in the grid divided on the random field sample that are within the geometric shape of the landslide model, and calculating the average value of the intensity index of each of the m1 areas; Step 3-5, according to the average value of the strength index of each of the m1 regions calculated in step 3-4, the corresponding regions in the landslide model making area in step 3-1 are obtained, that is, the strength index of the m1 regions corresponding to the landslide model in the landslide model making area in step 3-1 is obtained; Step 4, making a landslide model: from the n groups of sand and soil groups (4) with different strength parameters prepared in step 2, select the sand and soil groups (4) with m1 regional strength indicators of the landslide model making area obtained in steps 3-5, and then sequentially place the selected corresponding sand and soil groups (4) in the landslide model making area from bottom to top from the first base plate (3) to the baffle plate (5) to make a landslide model; Step 5, conducting a landslide movement process test: removing the baffle (5), so that the landslide model slides along the first bottom plate (3) of the broken line segment toward the second bottom plate (9) of the straight line segment until it contacts the retaining wall (8) until the landslide model stops sliding. During the sliding of the landslide model, the complete sliding process of the landslide model is recorded by a high-speed camera (7), and the strain and stress of the retaining wall (8) under the impact of the landslide model are measured by a strain sensor and a stress sensor; Step 6, drawing the sweep range and velocity time history curve of the landslide model through the complete sliding process of the landslide model recorded in step 5 and the measured strain and stress of the retaining wall (8) under the impact of the landslide model, and then performing statistical analysis on the sweep range and peak velocity; The test device is used to simulate a landslide condition in which the strength parameters of a rock and soil mass have spatial variation characteristics. The test device comprises a model box, a landslide model making mechanism, a retaining wall (8) and a measuring mechanism, wherein: The model box is used for conducting a landslide movement process test, and the model box comprises a model box body (1), a broken line segment, a straight line segment, and a baffle (5); A side wall of the model box body (1) along the length direction is transparent and has grid lines (2) drawn thereon for landslide displacement analysis; A broken line segment formed by a plurality of first bottom plates (3) connected in sequence, wherein the plurality of first bottom plates (3) of the broken line segment are arranged in a broken line shape inside the model box body (1) along the shape of the landslide to be tested, and the plurality of first bottom plates (3) are fixed inside the model box body (1); A straight line segment formed by a plurality of second bottom plates (9) connected in sequence, wherein the plurality of second bottom plates (9) of the straight line segment are laid flat along the bottom surface of the model box body (1) in a direction away from the folded line segment; The baffle (5) is installed on a first bottom plate (3) of the broken line segment, the installation position of the baffle (5) corresponds to the height of the simulated landslide, and the angle between the baffle (5) and the first bottom plate (3) is the angle of the simulated landslide; The space between the baffle plate (5) and the first bottom plate (3) forms a landslide model making area, and in the landslide model making area, sand groups (4) of different particle sizes are made into landslide models by a landslide model making mechanism; The landslide model making mechanism comprises an aluminum partition (12), wherein the aluminum partition (12) is a structure having a hollow through-hole in the middle formed by four panels connected end to end; The retaining wall (8) simulates a landslide blocking structure, and the retaining wall (8) is arranged on the second bottom plate (9) of the straight section; The measuring mechanism is used to measure the strain and stress of the retaining wall (8) and to obtain deformation conditions during landslide movement. The measuring mechanism comprises a strain sensor and a stress sensor arranged on the retaining wall (8), and a high-speed camera (7) arranged outside the model box body (1).

2. The test method for statistically analyzing the landslide movement process of spatial variability of intensity parameters according to claim 1 is characterized by: The shorter side of the inner circle of the aluminum partition (12) in the test device is the same as the side length of the grid in the grid line (2), and the longer side of the outer circle of the aluminum partition (12) is the same as the length in the width direction of the model box body (1).

3. The test method for statistically analyzing the landslide movement process of spatial variability of intensity parameters according to claim 1 is characterized by: In step 4, a landslide model is made in the landslide model making area, with the following two working conditions: Working condition 1: the area with incomplete cross-sectional shape in the m1 area is directly filled with the sand group (4) corresponding to the strength index; Working condition 2: the area with a complete grid cross-section in the m1 area is adopted. First, the aluminum partition (12) is aligned with the grid at the corresponding position on the model box body (1), and then the sand group (4) with the corresponding strength index is filled into the aluminum partition (12).

4. The test method for statistically analyzing the landslide movement process of spatial variability of intensity parameters according to claim 1 is characterized by: In order to maintain the stability of the plurality of first bottom plates (3) of the folded line segment, a plurality of supporting columns (6) are arranged below the plurality of first bottom plates (3) of the folded line segment.

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