A portable intelligent slope type identification method and device integrating slope, gradation and moisture content measurement

Abstract

The application relates to the technical field of slope safety monitoring, and discloses a portable intelligent slope type identification method and device integrating slope gradient, gradation and water content measurement. The portable intelligent slope type identification device comprises a slope gradient measurement unit, a water content measurement unit and a soil screening unit. One end of the water content measurement unit is connected with the slope gradient measurement unit, and the other end of the water content measurement unit is provided with a filter cavity, and a water absorption filter paper is arranged in the filter cavity. The soil screening unit comprises a screening box, one end of the screening box is detachably connected with the cavity end of the water content measurement unit, and the other end of the screening box is detachably connected with a cover. The key parameter acquisition equipment is integrated in the slope type identification device, and the device has the advantages of multifunction, low cost, portability, small size and simple operation. The three parameters of "slope gradient, gradation and water content" can be collected to quickly and effectively identify the slope type.

Description

Technical Field

[0001] This application relates to the field of slope safety monitoring technology, and in particular to a portable intelligent method and device for identifying slope type by integrating slope-gradation-moisture content sampling. Background Technology

[0002] my country has a wide distribution of mountainous and hilly areas. The surface and near-surface soil and rock masses that constitute various engineering slopes and natural slopes are mostly weathered layers and residual soils with complex properties and strong structure. These soil masses have a certain structural strength when dry, but they are extremely prone to softening and disintegration under the action of external forces such as rainfall and earthquakes, which can induce geological disasters such as landslides and collapses, posing a continuous threat to people's lives and property and the safety of major infrastructure.

[0003] Currently, rapid on-site assessment technologies for slope stability remain lagging. On the one hand, traditional geological survey methods are time-consuming and costly, making it difficult to meet the timeliness requirements of engineering construction and emergency response. On the other hand, existing portable devices on the market often have highly limited functions, either only measuring slope or roughly assessing soil properties, failing to simultaneously and comprehensively acquire the three key parameters for evaluating slope type and stability: slope, soil gradation, and initial moisture content. This results in fragmented on-site assessment data, hindering effective decision support. A deeper problem lies in the fact that these devices and their operating procedures generally lack "intelligent" features: data recording relies on manual methods, formats are non-standardized, and results are difficult to digitize and export. This prevents valuable on-site data from seamlessly integrating with subsequent BIM (Building Information Modeling), digital twin, and big data intelligent analysis platforms, creating "information silos" that hinder the construction of a "smart slope" management system.

[0004] Therefore, breaking through the bottleneck of on-site data acquisition and developing a portable device and method capable of integrating rapid acquisition of multiple parameters and natively supporting digital output has become the "last mile" problem in promoting the application of intelligent construction technology in the field of geotechnical engineering. This device is not only an innovation in tools but should also be positioned as the front-end intelligent sensing terminal of the intelligent construction data chain. The standardized and structured data it generates will provide a solid foundation for the digital investigation, intelligent design, and smart operation and maintenance of slope engineering, thereby realizing a transformation from a passive response to an active early warning disaster prevention model. Summary of the Invention

[0005] Therefore, it is necessary to provide a portable intelligent slope type identification device and method to overcome the shortcomings of existing equipment that cannot quickly identify slope type and stability on site.

[0006] A portable intelligent slope type identification device includes:

[0007] a slope determination unit for determining the slope of the slope;

[0008] a water content determination unit, one end of which is connected to the slope determination unit, and the other end of which is provided with a filter cavity, and a water-absorbing filter paper is arranged in the filter cavity;

[0009] a soil screening unit, which comprises a sieve box, one end of which is detachably connected to the cavity end of the water content determination unit, and the other end of which is detachably connected to a cover.

[0010] As a preferred embodiment of the portable intelligent slope type discrimination device, the slope determination unit comprises a shell, which is provided with a first length scale, and a cylindrical cavity is arranged in the shell, the cylindrical cavity is filled with liquid, and one end of the cylindrical cavity is provided with an angle scale.

[0011] As a preferred embodiment of the portable intelligent slope type discrimination device, the liquid is filled to one-half of the volume of the cylindrical cavity.

[0012] As a preferred embodiment of the portable intelligent slope type discrimination device, the angle scale is located at one end of the cylindrical cavity, and the identification range is 0-90°.

[0013] As a preferred embodiment of the portable intelligent slope type discrimination device, the inside of the filter cavity of the water content determination unit is provided with a first length scale, and the water-absorbing filter paper is arranged at the bottom of the filter cavity, and at least 6 layers are arranged.

[0014] As a preferred embodiment of the portable intelligent slope type discrimination device, the inside of the sieve box is provided with a second length scale, and a sieve screen is arranged in the inside of the sieve box.

[0015] As a preferred embodiment of the portable intelligent slope type discrimination device, a plurality of sieve boxes are detachably connected in sequence, and the pore sizes of the sieve screens in the plurality of sieve boxes decrease in sequence.

[0016] A discrimination method is realized by using the portable intelligent slope type discrimination device, and the discrimination method comprises the following steps:

[0017] Selecting a point on the slope as a determination point;

[0018] Vertically placing the slope determination unit at the determination point, and obtaining the slope of the determination point through the angle scale;

[0019] Taking the soil at the determination point to the water content determination unit, observing the number of water-permeable layers of the water-absorbing filter paper after pressing, and obtaining the initial water content and the repose angle of the slope at the point according to the water content calculation formula and the repose angle calculation formula;

[0020] The soil at the measuring point is taken to a soil screening unit, and the particle content of each particle size range is obtained after screening;

[0021] The type of the slope is determined according to the slope gradient, the soil moisture content and the volume proportion of the granular soil.

[0022] As a preferred embodiment of the distinguishing method, the moisture content calculation formula is as follows:

[0023] y1=3.50+7x1 Formula 1;

[0024] Wherein, y1 is the initial moisture content; x1 is the number of layers of water-permeable filter paper in the soil.

[0025] As a preferred embodiment of the distinguishing method, the repose angle calculation formula is as follows:

[0026] y2=37.06+0.38y1 Formula 2;

[0027] Wherein, y2 is the repose angle; y1 is the initial moisture content.

[0028] The beneficial effects of the present application are as follows:

[0029] The key parameter acquisition device is integrated in the slope type distinguishing device, which has the advantages of multifunction, low cost, portability, small size and simple operation, and the three parameters of "gradient, grading and moisture content" can be collected to quickly and effectively distinguish the slope type. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 The structure diagram of the slope type distinguishing device in the embodiments of the present application is shown in the figure;

[0032] Figure 2 The structure diagram of the slope measuring unit in the embodiments of the present application is shown in the figure;

[0033] Figure 3 The structure diagram of the slope measuring unit in the embodiments of the present application is shown in the figure;

[0034] Figure 4 The structure diagram of the moisture content measuring unit in the embodiments of the present application is shown in the figure;

[0035] Figure 5FIG. 1 is a structural schematic diagram of a soil screening unit in an embodiment of the present application;

[0036] Figure 6 FIG. 4 is a structural schematic diagram of a cover in an embodiment of the present application;

[0037] Figure 7 FIG. 5 is a schematic diagram of a curve of the number of layers of filter paper through which soil is pressed and the initial water content change in an embodiment of the present application;

[0038] Figure 8 FIG. 6 is a schematic diagram of a curve of the angle of repose change of different water contents of sandy clay in an embodiment of the present application.

[0039] Explanation of Reference Signs:

[0040] 1000, slope determination unit;

[0041] 2000, water content determination unit;

[0042] 3000, soil screening unit;

[0043] 4000, cover. DETAILED DESCRIPTION

[0044] In order to make the above objectives, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0046] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and are not used to denote or imply relative importance or a number of indications of the technical features indicated. Thus, the technical features defined with "first", "second" can explicitly or implicitly include at least one of the technical features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0049] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes, and are not the only embodiment.

[0050] According to one aspect of the present application, embodiments of the present application provide a portable intelligent slope type discrimination device, which is described in conjunction with Figures 1 to 8The portable intelligent slope type identification device comprises a slope determination unit 1000, a water content determination unit 2000 and a soil screening unit 3000, the slope determination unit 1000 is used for determining the slope of the slope, one end of the water content determination unit 2000 is connected with the slope determination unit 1000, the other end of the water content determination unit 2000 is provided with a filter cavity, a water absorption filter paper is arranged in the filter cavity, the soil screening unit 3000 comprises a screening box, one end of the screening box is detachably connected with the cavity end of the water content determination unit 2000, and the other end of the screening box is detachably connected with a cover body 4000.

[0051] Please refer to Figure 1 The portable intelligent slope type identification device is in a hollow cylindrical structure as a whole, the slope determination unit 1000, the water content determination unit 2000, the soil screening unit 3000 and the cover body 4000 are sequentially connected, and the slope determination unit 1000, the water content determination unit 2000 and the soil screening unit 3000 are used for determining the slope, the water content and the gradation of the slope.

[0052] In one embodiment, please refer to Figure 2 and Figure 3 The slope determination unit 1000 comprises a shell, a cylindrical cavity is arranged in the shell, and the cylindrical cavity is filled with a liquid.

[0053] The shell is in a disc shape, one end of the shell is connected with the water content determination unit 2000, an angle scale is arranged on the circular end of the cylindrical cavity, the angle scale is arranged around the center of the circular end, and the cylindrical cavity is filled with the liquid, so that the slope of the slope is determined.

[0054] In one embodiment, the liquid is filled to one half of the volume of the cylindrical cavity, and the angle scale is arranged at one end in the cylindrical cavity, and the identification range of the angle scale is 0-90°.

[0055] The angle scale is arranged in the cylindrical cavity, so as to avoid abrasion during use, the identification range of the angle scale is 0-90°, and the angle scale is uniformly arranged around the center of the circular end.

[0056] In one embodiment, please refer to Figure 4 The outer side of the water content determination unit 2000 is designed with a first length scale line, the water absorption filter paper is arranged at the bottom of the filter cavity, and the water absorption filter paper is provided with at least six layers.

[0057] The water absorption filter paper at the bottom of the filter cavity of the water content determination unit 2000 is used for determining the number of layers of the water absorption filter paper that can be penetrated by the water in the soil, so as to calculate the water content in the soil by using a water content calculation formula. The first length scale line is used for determining the height of the soil in the cavity body that is put into the water content determination unit 2000.

[0058] In one embodiment, please refer to Figure 5 The outer side of the screening box is provided with a second length scale line, and the inner side of the screening box is provided with a screen.

[0059] The second length scale is used to determine the height of the remaining soil in the screen box after screening relative to the height of the cavity.

[0060] In one embodiment, a plurality of screen boxes are detachably connected in sequence, and the mesh size of the screen mesh in the plurality of screen boxes decreases in sequence.

[0061] The screen box includes two, the mesh size of the screen mesh of the upper screen box is 2mm, and the mesh size of the screen mesh of the lower screen box is 0.5mm.

[0062] The bottom of the lowermost screen box is detachably connected with a cover body 4000, please refer to Figure 6 for the convenience of cleaning the residual soil after screening through the lowermost screen box.

[0063] A distinguishing method, which is realized by using a portable intelligent distinguishing slope type device, comprises the following steps:

[0064] Step one: select a flat place on the slope as a measuring point.

[0065] Step two: keep the slope measuring unit 1000 horizontal, and make the liquid surface in the cylindrical cavity pass through the 0 scale line when the liquid is still, at this time, draw a dark line at the 90° scale line (i.e. the line where the slope measuring unit 1000 contacts the ground) to mark the horizontal plane, and when using, touch the marked point to the slope surface whose slope needs to be measured, and then read the scale on the liquid surface after the liquid is still, which is the slope of the slope surface.

[0066] Step three: take the soil at the measuring point in the water content measuring unit 2000, cover a piece of filter paper on the soil sample, press manually for 5 to 10 seconds, take out all the filter paper, observe the number of water permeable filter paper layers, and then calculate the initial water content of the slope body according to formula 1.

[0067] y1=3.50+7x1 Formula 1;

[0068] Wherein, y1 is the initial water content; x1 is the number of water permeable filter paper layers in the soil.

[0069] The number of water permeable filter paper layers after pressing and the initial water content change curve please refer to Figure 7 .

[0070] The rest angle of the slope body is calculated according to formula 2.

[0071] y2=37.06+0.38y1 Formula 2;

[0072] Wherein, y2 is the rest angle; y1 is the initial water content.

[0073] The rest angle change curve diagram of sandy clay soil with different water contents please refer to Figure 8 .

[0074] Step four: take the soil at the measuring point in the moisture content measuring unit 2000, shake gently to make the soil flat, read the first length scale line marked on the inner wall of the moisture content measuring unit 2000, record the total volume V, connect the sieve boxes in order from large to small aperture, then connect the large aperture sieve box with the moisture content measuring unit 2000, and the small aperture sieve box with the cover 4000, shake the combined body of the moisture content measuring unit 2000 and the soil sieving unit 3000, when the sieving is completed, shake the device gently to make the soil surface in the sieve box level, read the second length scale line and the third length scale line marked on the inner wall of the sieve box to obtain the volume of soil with a particle size of 0.5-2mm and soil with a particle size of less than 0.5mm, respectively, record them as V2 and V3, respectively, and obtain the volume of soil with a particle size greater than 2mm as V1=V-V2-V3, thereby calculating the particle content in each particle size range.

[0075] Step five: combine the slope gradient, soil moisture content, and particle soil volume ratio to determine the type of the slope according to Table 1 and Table 2.

[0076] Table 1 Slope classification table according to slope-grading

[0077]

[0078] Table 2 Slope classification table according to slope-grading-initial moisture content

[0079]

[0080] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0081] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method for intelligent identification of slope type by integrated slope-gradation-moisture content surveying, characterized in that, The method is realized by a portable intelligent slope type distinguishing device; The portable intelligent slope type distinguishing device comprises: a slope determination unit for determining the slope of the slope; a water content determination unit, one end of which is connected with the slope determination unit, and the other end of which is provided with a filtering cavity, the filtering cavity being provided with water-absorbing filter paper, and the water-absorbing filter paper being provided with at least 6 layers; a soil screening unit, the soil screening unit comprising a screening box, one end of the screening box being detachably connected with the cavity end of the water content determination unit, and the other end of the screening box being detachably connected with a cover body; The distinguishing method realized by the portable intelligent slope type distinguishing device comprises the following steps: selecting a point on the slope as a determination point; vertically placing the slope determination unit at the determination point to obtain the slope of the determination point through the angle scale; taking the soil at the determination point to the water content determination unit, observing the number of layers of the water-absorbing filter paper after pressing, and obtaining the initial water content and the repose angle of the slope at the determination point according to a water content calculation formula and a repose angle calculation formula; taking the soil at the determination point to the soil screening unit, and obtaining the particle content of each particle size range after screening; comprehensively judging the type of the slope according to the slope, the soil water content and the volume proportion of the particle soil; the water content calculation formula is as follows: y1=3.50+7x1 Formula 1; wherein y1 is the initial water content, and x1 is the number of layers of the water-absorbing filter paper; the repose angle calculation formula is as follows: y2=37.06+0.38y1 Formula 2; wherein y2 is the repose angle, and y1 is the initial water content.

2. The intelligent identification of slope type method of integrated slope-gradation- water content measurement according to claim 1, characterized in that, The slope determination unit comprises a shell, the shell being internally provided with a cylindrical cavity, the cylindrical cavity being filled with a liquid, and one end of the cylindrical cavity being provided with an angle scale.

3. The intelligent identification of slope type method of integrated slope-gradation- moisture content surveying according to claim 2, characterized in that, The liquid is filled to one-half of the volume of the cylindrical cavity.

4. The intelligent identification of slope type method of integrated slope-gradation- moisture content surveying according to claim 2, characterized in that, The angle scale is located at one end of the cylindrical cavity, and the identification range of the angle scale is 0-90°.

5. The intelligent identification of slope type method of integrated slope- grade- moisture content surveying according to claim 1, characterized in that, The inner side of the filtering cavity of the water content determination unit is provided with a first length scale line, and the water-absorbing filter paper is arranged at the bottom of the filtering cavity.

6. The intelligent identification of slope type method of integrated slope- grade- moisture content surveying according to claim 1, characterized in that, The inner side of the screening box is provided with a second length scale line and a third length scale line, and the screening box is internally provided with a screen.

7. The intelligent recognition of slope type method of integrated slope-gradation- water content measurement according to claim 6, characterized in that, A plurality of screening boxes are detachably connected in sequence, and the pore diameters of the screens in the plurality of screening boxes are sequentially reduced.

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