Graded protection method, device and equipment for landslide surge and storage medium

Abstract

The invention discloses a graded protection method, device and equipment for landslide surges and a storage medium, and relates to the technical field of disaster prevention and control, the method performs continuous data processing and calculation through attenuation from landslide starting of a landslide mass to last surges to a shoreside, and considers the influence of the surges at different distances on the shoreside at the same time; and then different levels of protection measures are defined based on surge influences of different distances, for example, if the residual wave height is larger than three meters, a wave wall and a baffle sill are set, if the residual wave height ranges from one meter to three meters, a wave prevention forest is planted, and if the residual wave height is within one meter, only the baffle sill is laid. Data support can be provided for surge prevention and control, and a simple, convenient and accurate calculation method is provided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disaster prevention, and in particular relates to a landslide surge grading protection method, device, equipment and storage medium. BACKGROUND

[0002] Due to the complex and extremely unstable geological conditions of high slopes in mountainous reservoir areas, the geological body is prone to instability and quickly slides into the reservoir under the influence of external adverse factors, forming a landslide surge that seriously endangers the reservoir area along the coast and the downstream dam.

[0003] In the high mountain and canyon area, due to the complex geological conditions and frequent evolution of underground water, unstable accumulations are often distributed near the dam reservoir bank of the hydropower station, and the scale of the accumulation body is huge, and the slope body material composition formation evolution mechanism is complex. Its stability is good in the natural state, but its stability is poor under the influence of external adverse factors such as surge load impact, and the surge generated after instability is prone to affecting the safety of personnel and property on the surrounding coast.

[0004] At present, for the protection problem of the impact of the surge caused by the landslide body on the surrounding coast, a redundant protection wall, a stilling basin and the like are usually used to reduce or eliminate the surge into the coast. The size and specification of each protection measure are usually set by prior experience for the construction of protection measures such as protection walls and stilling basins, which leads to excessive protection of the coast or excessive protection that easily leads to excessive transformation of the surrounding environment or affects the lighting of plants and animals. Lack of protection easily leads to poor protection effect, and a large amount of water in the surge enters the coast, causing environmental damage, property loss, and even affecting personal safety. SUMMARY

[0005] The main purpose of the present application is to provide a landslide surge grading protection method, device, equipment and storage medium to solve the problem of poor protection effect caused by prior experience in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: A landslide surge grading protection method, the grading protection method is applied to a potential landslide body in a water environment, one end of the water environment far from the potential landslide body is a coast to be protected, and the grading protection method comprises: Step S1, obtaining geological parameters of the potential landslide body based on a preset measurement strategy; Step S2, substituting the geological parameters into a sliding speed formula to calculate the water entry sliding speed of the potential landslide body; Step S3, calculating the initial wave height caused by the potential landslide body based on the water entry sliding speed through a surge formula; Step S4, obtaining a plurality of straight line distances between the water entry end of the potential landslide body and different impact points of the coast to be protected; Step S5, the initial wave height, each straight line distance is substituted into the wave height index attenuation model respectively, and the remaining wave height of the initial wave height reaching each impact point is calculated respectively; Step S6, based on the preset protection safety specification, all the remaining wave heights are classified to obtain at least two wave height partitions; Step S7, a protection level is defined based on a wave height partition, and the level of all protection levels increases with the numerical value of all wave height partitions; Step S8, a protection measure is defined based on a protection level, and the protection effect of all protection measures increases with the level of all protection levels; Step S9, the protection level corresponding to the remaining wave height of each impact point is obtained respectively, and the corresponding protection measure is constructed based on the respective protection level.

[0007] As a further improvement of the present application, step S9, the protection level corresponding to the remaining wave height of each impact point is obtained respectively, and the corresponding protection measure is constructed based on the respective protection level, and then, includes: Step S10, a digital model of the water environment is obtained, and the digital model includes the potential landslide body and the to-be-protected shore located on both sides of the water body in the water environment; Step S20, the geological parameters are marked on the potential landslide body; Step S30, the protection measures of different protection levels are filled with different colors; Step S40, the complete landslide and surge process of the potential landslide body is dynamically simulated through the dynamic simulation function of the preset software, and a progress bar is added based on the timing of the dynamic simulation; Step S50, the progress bar is placed at the bottom of the digital model; Step S60, the digital model processed through steps S20 to S50 is sent to an external visualization terminal.

[0008] As a further improvement of the present application, step S60, the digital model processed through steps S20 to S50 is sent to an external visualization terminal, and then, includes: Step S100, in response to a touch operation from the external visualization terminal, the display of the digital model is started; Step S200, the operation type of the touch operation is identified, and different demonstration effects are started based on different operation types.

[0009] As a further improvement of the present application, step S1, the geological parameters of the potential landslide body are obtained based on a preset measurement strategy, including: Step S11, markers are uniformly arranged in the area where the potential landslide body is located; Step S12, acquiring visual images of all markers by computer vision with fixed view angle; Step S13, acquiring moving track of the same marker along time course; Step S14, determining sliding surface of the potential landslide mass by the moving track; Step S15, constructing vertical plane geological drawing of the potential landslide mass based on the sliding surface, the vertical plane geological drawing passing through front edge and back edge of the sliding surface; Step S16, vertically dividing the potential landslide mass into several soil strips and acquiring internal friction angle and cohesion of each soil strip by the vertical plane geological drawing; Step S17, acquiring self-weight of each soil strip, sliding surface length of water body in the water environment, and inclination angle of the sliding surface; Step S18, integrating the internal friction angle, the cohesion, the self-weight, the sliding surface length, and the inclination angle into the geological parameters.

[0010] As a further improvement of the present application, step S2, substituting the geological parameters into sliding speed formula to calculate water-entry sliding speed of the potential landslide mass, comprising: Step S21, calculating the water-entry sliding speed of the current soil strip from the start of the potential landslide mass sliding by formula (1): (1); wherein, is sliding speed at the i th moment during the sliding process of the potential landslide mass, is iteration step length, taking 0.01 to 0.1 second, is mass of the current soil strip, is gravitational acceleration, is the inclination angle, is cohesion of the current soil strip, is the sliding surface length, is dynamic friction angle, taking 0.7 to 0.85 times of the internal friction angle, is water resistance; Step S22, iterating based on formula (1) until the current soil strip starts to contact the water body to obtain the water-entry sliding speed of the current soil strip; Step S23, acquiring water-entry sliding speeds of all soil strips and taking average value to obtain the water-entry sliding speed of the potential landslide mass. As a further improvement of the present application, step S3, calculating initial wave height caused by the potential landslide mass by surge formula based on the water-entry sliding speed, comprising: Step S31, calculating the initial wave height caused by the potential landslide mass by formula (2):

[0011] (2) wherein, (2); wherein, is a vertical impact wave height caused by the potential landslide body, is a water-entry sliding speed of the potential landslide body, is a water-entry volume of the potential landslide body, equal to a sum of water-entry volumes of soil strips, is a catchment area of the potential landslide body, equal to a sum of water-entry areas of soil strips at a front end in a sliding direction, is a horizontal impact correction term caused by the potential landslide body, is an initial wave height caused by the potential landslide body.

[0012] As a further improvement of the present application, in step S5, the initial wave height and each straight-line distance are respectively substituted into a wave height exponential decay model to calculate a residual wave height of the initial wave height when reaching each impact point. In step S51, a residual wave height of a current impact point is calculated by formula (3): (3); wherein, is a residual wave height of the current impact point, is a straight-line distance between the current impact point and the initial wave height, is a decay coefficient; In step S52, the decay coefficient in formula (3) is replaced by to calculate a residual wave height of each straight-line distance.

[0013] To achieve the above object, the present application further provides the following technical solutions: A landslide surge wave grading protection device, which is applied to the grading protection method as described above, and comprises: a potential landslide body geological parameter acquisition module, configured to acquire geological parameters of the potential landslide body based on a preset measurement strategy; a potential landslide body water-entry sliding speed calculation module, configured to calculate a water-entry sliding speed of the potential landslide body by substituting the geological parameters into a sliding speed formula; a surge wave initial wave height calculation module, configured to calculate an initial wave height caused by the potential landslide body by substituting the water-entry sliding speed into a surge wave formula; a surge wave and impact point distance acquisition module, configured to acquire a plurality of straight-line distances between a water-entry end of the potential landslide body and different impact points on a bank to be protected; a surge wave residual wave height calculation module, configured to substitute the initial wave height and each straight-line distance into a wave height exponential decay model to calculate a residual wave height of the initial wave height when reaching each impact point; The remaining wave height classification module is configured to classify all the remaining wave heights based on preset protection safety specifications to obtain at least two wave height partitions; The protection level definition module is configured to define a protection level based on one wave height partition, and the levels of all the protection levels increase with the values of all the wave height partitions increasing; The protection measure definition module is configured to define a protection measure based on one protection level, and the protection effects of all the protection measures increase with the levels of all the protection levels increasing; The protection measure construction module is configured to obtain the protection level corresponding to the remaining wave height of each impact point and construct the corresponding protection measure based on the respective protection level.

[0014] To achieve the above object, the present application further provides the following technical solutions: An electronic device comprises a processor and a memory coupled to the processor, the memory storing program instructions executable by the processor; the processor executes the program instructions stored in the memory to implement the hierarchical protection method as described above.

[0015] To achieve the above object, the present application further provides the following technical solutions: A storage medium, the storage medium storing program instructions, the program instructions being executable by a processor to implement the hierarchical protection method as described above.

[0016] The application obtains geological parameters of a potential landslide body based on a preset measurement strategy; substitutes the geological parameters into a sliding speed formula to calculate the water entry sliding speed of the potential landslide body; calculates the initial wave height caused by the potential landslide body based on the water entry sliding speed through a surge formula; obtains a plurality of straight line distances from the water entry end of the potential landslide body to different impact points on the bank to be protected; substitutes the initial wave height and each straight line distance into a wave height index attenuation model respectively to calculate the residual wave height when the initial wave height reaches each impact point respectively; classifies all the residual wave heights based on a preset protection safety specification to obtain at least two wave height partitions; defines a protection level based on one wave height partition, and the level of all protection levels increases with the numerical value of all wave height partitions; defines a protection measure based on one protection level, and the protection effect of all protection measures increases with the level of all protection levels; respectively obtains the protection level corresponding to the residual wave height of each impact point and constructs the corresponding protection measure based on the respective protection level. The application continuously processes and calculates the attenuation from the start of the landslide to the last surge to the bank, and simultaneously considers the influence of surges at different distances on the bank, and then defines different levels of protection measures based on the influence of surges at different distances, for example, a wave protection wall and a stilling basin are set up when the residual wave height is greater than three meters, a wave protection forest is planted when the residual wave height is between one meter and three meters, and only a stilling basin is laid when the residual wave height is less than one meter. Compared with the prior art empirical experience, the application has a quantitative standard and can provide data support for surge prevention and control, and proposes a simple and accurate calculation method. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Step flowchart for an embodiment of the landslide surge grading protection method of the application; Figure 2 Functional module diagram for an embodiment of the landslide surge grading protection device of the application; Figure 3 Structure diagram for an embodiment of the electronic device of the application; Figure 4 Structure diagram for an embodiment of the storage medium of the application. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the application.

[0019] The terms "first", "second", "third", etc. in the present application are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly and specifically limited. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or equipment.

[0020] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor does it necessarily refer to a separate or alternative embodiment in isolation or in combination with other embodiments. It is expressly understood that the embodiments described herein can be combined with other embodiments.

[0021] As shown in Figure 1 The present embodiment provides an embodiment of a grading protection method for landslide surge, in which the grading protection method is applied to a potential landslide body in a water environment, and a shore to be protected is located away from one end of the potential landslide body in the water environment.

[0022] Preferably, the present embodiment is applied to a water environment in a reservoir area of a hydropower station, and the reservoir area is selected to avoid a large potential landslide body to cause a large wave height.

[0023] Specifically, the grading protection method comprises the following steps: Step S1, obtaining geological parameters of the potential landslide body based on a preset measurement strategy.

[0024] Preferably, the preset measurement strategy can be obtained from a geological drawing obtained by surveying and mapping, for example, the geological parameters of the potential landslide body include soil strip size, soil strip self-weight, soil strip internal friction angle, soil strip cohesion obtained by strip method, and sliding surface obtained by drawing.

[0025] Step S2, substituting the geological parameters into a sliding speed formula to calculate the water entry sliding speed of the potential landslide body.

[0026] Step S3, calculating the initial wave height caused by the potential landslide body based on the slide formula of the water entry sliding speed.

[0027] Step S4, obtaining the straight line distances between the water entry end of the potential landslide body and several impact points on the bank to be protected.

[0028] Preferably, the surge wave is a wave radiating outward from the center, and the wave decays exponentially with the propagation distance, so the wave height at different impact positions is different.

[0029] Step S5, substituting the initial wave height and each straight line distance into the wave height exponential decay model respectively to calculate the remaining wave height when the initial wave height reaches each impact point.

[0030] Step S6, classifying all the remaining wave heights based on the preset protection safety specification to obtain at least two wave height partitions.

[0031] Preferably, it can be set to three wave height partitions, [0m, 1m], (1m, 3m], (3m, +∞), because the hydropower station has been surveyed and located, there is generally no large potential landslide body. If there is a large potential landslide body, the values of each interval can be adjusted.

[0032] Step S7, defining a protection level based on a wave height partition, and the level of all protection levels increases with the numerical value of all wave height partitions.

[0033] Preferably, if the above three partitions are used, the protection levels can be set to 1, 2, and 3 in turn.

[0034] Step S8, defining a protection measure based on a protection level, and the protection effect of all protection measures increases with the level of all protection levels.

[0035] Preferably, if the above three protection levels are used, level 1 can be set to only install a bucket, level 2 can be set to plant a wave protection forest, and level 3 can be set to a wave protection wall plus a bucket.

[0036] Step S9, obtaining the protection level corresponding to the remaining wave height of each impact point and constructing the corresponding protection measure based on the respective protection level.

[0037] For example, 9 impact points are set on the shore of a certain site, the connecting line of the 9 impact points is perpendicular to the direction of the surge, that is, the shore is a straight line without turning, then the impact point on the vertical line of the shore is impacted first, and the remaining impact points are impacted in turn, at this time, the remaining wave height of each point is 0.87m, 1.45m, 2.03m, 2.71m, 3.21m, 2.67m, 2.10m, 1.43m, 0.91m; then 0.87m and 0.91m are the first protection level, and the impact points corresponding to the first protection level are provided with a bucket.

[0038] Preferably, the setting of the bucket, the wave protection forest and the wave protection wall are mature prior art, each having corresponding specifications, and the specific setting mode of each protection measure will not be described in detail in the embodiment.

[0039] Further, in step S9, the protection level corresponding to the remaining wave height of each impact point is obtained, and the corresponding protection measure is constructed based on the respective protection level, and then the following steps are further included: In step S10, a digital model of the water environment is obtained, and the digital model includes a potential landslide body and a to-be-protected shore located on both sides of the water body in the water environment.

[0040] In step S20, the geological parameters are marked on the potential landslide body.

[0041] In step S30, the protection measures of different protection levels are filled with different colors.

[0042] Preferably, the color temperature of the color can be gradually increased as the protection level increases, and if the above three protection levels are adopted, the first level can be set to green, the second level can be set to yellow, and the third level can be set to red.

[0043] In step S40, the complete landslide and surge process of the potential landslide body is dynamically visualized through the dynamic simulation function of the preset software, and a progress bar is added based on the timing of the dynamic visualization.

[0044] Preferably, the preset software can be set to one of RAMMS, RiverFlow2D, Massflow, ArcGIS+HEC-RAS, and OPTIMOOR, and the foregoing software can all provide dynamic visual simulation of landslide surge.

[0045] In step S50, the progress bar is placed at the bottom of the digital model.

[0046] In step S60, the digital model processed through steps S20 to S50 is sent to an external visualization terminal.

[0047] Further, step S60, sending the digital model processed through steps S20 to S50 to an external visualization terminal, and then further comprising the following steps: Step S100, in response to a touch operation from the external visualization terminal, starting to display the digital model.

[0048] Preferably, the digital model can be obtained by remote sensing interpretation and other surveying means.

[0049] Step S200, identifying the operation type of the touch operation and starting different demonstration effects based on different operation types.

[0050] Preferably, the demonstration effects include playing, pausing, fast forwarding, rewinding, and point touching touch operations. The playing, pausing, fast forwarding, and rewinding can be realized by dynamic operation on the progress bar, and the point touching highlights the model components at different point touching positions. For example, if the point touching is a potential landslide body, the potential landslide body is highlighted.

[0051] Further, step S1, obtaining the geological parameters of the potential landslide body based on a preset measurement strategy, specifically comprising the following steps: Step S11, uniformly arranging markers in the area where the potential landslide body is located.

[0052] Preferably, the marker can be set as a prominent cross mark, and the cross mark is inserted into the potential landslide body through a rigid rod.

[0053] Step S12, obtaining visual images of all markers through computer vision with a fixed view angle.

[0054] Preferably, the cross mark is directly opposite the shooting end of the computer vision.

[0055] Step S13, obtaining the movement trajectory of the same marker along the time course.

[0056] Step S14, determining the sliding surface of the potential landslide body through the movement trajectory.

[0057] Preferably, the movement trajectory of the same marker along the time course is converted into a displacement vector, the marker with a displacement vector exceeding a preset displacement threshold is marked as a deformation mutation marker, the coordinate points of each deformation mutation marker are obtained respectively, the projection lines of each coordinate point are obtained based on the same vertical plane, the perpendicular lines of each projection line are obtained respectively, all intersection points between all perpendicular lines are obtained, all outliers among all intersection points are deleted, the remaining intersection points are defined as effective intersection points, and finally the shape center of a face enclosed by all effective intersection points through a triangulation algorithm is obtained. The shape center is the center of the circle of the sliding surface of the slope body, the distances from the center to the coordinate points of the deformation mutation inclinometer are calculated, and the radius of the sliding surface is calculated according to the Euclidean distance.

[0058] Step S15: Construct a vertical geological map of the potential landslide body based on the sliding surface. The vertical geological map passes through the leading and trailing edges of the sliding surface.

[0059] Preferably, geological maps can be constructed based on the aforementioned vertical plane.

[0060] Step S16: Divide the potential landslide body vertically into several equal soil strips, and obtain the internal friction angle and cohesion of each soil strip using a vertical geological map.

[0061] Preferably, if the internal friction angle of the current soil strip is equal to that of the next soil strip, then the internal friction angle of the current soil strip remains unchanged; if the internal friction angle of the current soil strip is not equal to that of the next soil strip, then the internal friction angle of the current soil strip is equal to the average of the internal friction angles of the current soil strip and the next soil strip; if the cohesion of the current soil strip is equal to that of the next soil strip, then the cohesion of the current soil strip remains unchanged; if the cohesion of the current soil strip is not equal to that of the next soil strip, then the cohesion of the current soil strip is equal to the average of the cohesion of the current soil strip and the next soil strip.

[0062] Step S17: Obtain the self-weight of each soil strip, the length of the sliding surface relative to the water body in the aquatic environment, and the inclination angle of the sliding surface.

[0063] Preferably, the slip surface length of each soil strip is calculated on the geological map based on the Euclidean distance.

[0064] Step S18: Integrate the internal friction angle, cohesion, self-weight, sliding surface length, and dip angle into geological parameters.

[0065] Further, step S2 involves substituting geological parameters into the landslide velocity formula to calculate the entry velocity of the potential landslide body into water, specifically including the following steps: Step S21, iterate the current soil strip's entry velocity into water using equation (1) when the potential landslide body begins to slide: (1).

[0066] in, For the first step in the sliding process of a potential landslide body The sliding speed at that moment The iteration step size is set to 0.01 to 0.1 seconds. , Given the current quality of the soil strips, It is the acceleration due to gravity. The angle of inclination, The cohesion of the current soil strip, The length of the sliding surface. The kinetic friction angle is taken as 0.7 to 0.85 times the internal friction angle. Water resistance.

[0067] Step S22, based on formula (1) iteration to the current soil bar starts to contact the water body, the current soil bar water entry speed is obtained.

[0068] Step S23, the water entry speed of all soil bars is obtained and averaged to obtain the water entry speed of the potential landslide body.

[0069] Further, step S3, based on the water entry speed, the initial wave height caused by the potential landslide body is calculated by the surge formula, specifically including the following steps: Step S31, the initial wave height caused by the potential landslide body is calculated by (2): (2).

[0070] Wherein, is the vertical impact wave height caused by the potential landslide body, is the water entry speed of the potential landslide body, is the water entry volume of the potential landslide body, equal to the sum of the water entry soil bar volume, is the catchment area of the potential landslide body, equal to the sum of the water entry area of the front layer of soil bars in the sliding direction, is the horizontal impact correction term caused by the potential landslide body, is the initial wave height caused by the potential landslide body.

[0071] Further, step S5, the initial wave height and each straight line distance are respectively substituted into the wave height index attenuation model to calculate the remaining wave height when the initial wave height reaches each impact point respectively, specifically including the following steps: Step S51, the remaining wave height of the current impact point is calculated by formula (3): (3).

[0072] Wherein, is the remaining wave height of the current impact point, is the straight line distance of the current impact point from the initial wave height, is the attenuation coefficient.

[0073] Step S52, by replacing in formula (3) to calculate the remaining wave height of each straight line distance.

[0074] The embodiment obtains the geological parameters of the potential landslide body based on a preset measurement strategy; substitutes the geological parameters into a sliding speed formula to calculate the water entry sliding speed of the potential landslide body; calculates the initial wave height caused by the potential landslide body based on the water entry sliding speed through a surge formula; obtains a plurality of straight line distances between the water entry end of the potential landslide body and different impact point positions of the bank to be protected; substitutes the initial wave height and each straight line distance into a wave height index attenuation model respectively to calculate the residual wave heights when the initial wave height reaches each impact point position respectively; classifies all the residual wave heights based on a preset protection safety specification to obtain at least two wave height partitions; defines a protection level based on one wave height partition, and the level of all protection levels increases with the numerical value of all wave height partitions; defines a protection measure based on one protection level, and the protection effect of all protection measures increases with the level of all protection levels; respectively obtains the protection level corresponding to the residual wave height of each impact point position and constructs the corresponding protection measure based on the respective protection level. The embodiment continuously processes and calculates the attenuation from the start of the landslide to the last surge to the bank, and simultaneously considers the influence of surges at different distances on the bank, and then defines different levels of protection measures based on the influence of surges at different distances, for example, a wave protection wall and a stilling basin are set up when the residual wave height is greater than three meters, a wave protection forest is planted when the residual wave height is between one meter and three meters, and only a stilling basin is laid when the residual wave height is less than one meter. Compared with the prior art empirical experience, the embodiment has a quantitative standard, can provide data support for surge prevention and treatment, and proposes a simple and accurate calculation method.

[0075] As shown in Figure 2 , the embodiment provides an embodiment of a graded protection device for landslide surges, which includes, in sequence and electrically connected, a potential landslide body geological parameter acquisition module 1, a potential landslide body water entry sliding speed calculation module 2, a surge initial wave height calculation module 3, a surge and impact point distance acquisition module 4, a surge residual wave height calculation module 5, a residual wave height classification module 6, a protection level definition module 7, a protection measure definition module 8, and a protection measure construction module 9.

[0076] The potential landslide geological parameter acquisition module 1 is configured to acquire the geological parameters of the potential landslide based on a preset measurement strategy; the potential landslide water-entry sliding speed calculation module 2 is configured to calculate the water-entry sliding speed of the potential landslide by substituting the geological parameters into a sliding speed formula; the initial surge height calculation module 3 is configured to calculate the initial surge height caused by the potential landslide by substituting the water-entry sliding speed into a surge formula; the surge and impact point distance acquisition module 4 is configured to acquire a plurality of straight-line distances between the water-entry end of the potential landslide and different impact points on the bank to be protected; the residual surge height calculation module 5 is configured to calculate the residual surge heights of the initial surge height reaching each impact point by substituting the initial surge height and each straight-line distance into a wave height exponential decay model, respectively; the residual surge height classification module 6 is configured to classify all the residual surge heights based on a preset protection safety specification to obtain at least two wave height partitions; the protection level definition module 7 is configured to define one protection level based on one wave height partition, and the levels of all protection levels increase with the numerical values of all wave height partitions; the protection measure definition module 8 is configured to define one protection measure based on one protection level, and the protection effects of all protection measures increase with the levels of all protection levels; and the protection measure construction module 9 is configured to acquire the protection levels corresponding to the residual surge heights of each impact point, respectively, and construct the corresponding protection measures based on the respective protection levels.

[0077] Further, the hierarchical protection device further comprises a water environment digital model acquisition module, a geological parameter marking module, a protection measure color filling module, a potential landslide movement dynamization module, a progress bar placement module, a digital model sending module, and a digital model sending module connected in sequence; the water environment digital model acquisition module is electrically connected with the protection measure construction module 9.

[0078] The water environment digital model acquisition module is configured to acquire a digital model of the water environment, and the digital model includes the potential landslide and the bank to be protected located on both sides of the water body in the water environment; the geological parameter marking module is configured to mark the geological parameters on the potential landslide; the protection measure color filling module is configured to fill the protection measures of different protection levels with different colors; the potential landslide movement dynamization module is configured to dynamically simulate the complete landslide and surge process of the potential landslide through a dynamic simulation function of a preset software, and add a progress bar based on the timing of the dynamic simulation; the progress bar placement module is configured to place the progress bar at the bottom of the digital model; and the digital model sending module is configured to send the digital model processed by the geological parameter marking module to the progress bar placement module to an external visual terminal.

[0079] Further, the hierarchical protection device further comprises a touch operation response module and a touch operation identification module connected in sequence; the touch operation response module is electrically connected with the digital model sending module.

[0080] The touch operation response module is configured to start displaying the digital model in response to a touch operation from an external visualization terminal.

[0081] Further, the potential landslide body geological parameter acquisition module 1 specifically comprises a first potential landslide body geological parameter acquisition unit, a second potential landslide body geological parameter acquisition unit, a third potential landslide body geological parameter acquisition unit, a fourth potential landslide body geological parameter acquisition unit, a fifth potential landslide body geological parameter acquisition unit, a sixth potential landslide body geological parameter acquisition unit, a seventh potential landslide body geological parameter acquisition unit, and an eighth potential landslide body geological parameter acquisition unit, which are electrically connected in sequence.

[0082] The first potential landslide body geological parameter acquisition unit is configured to uniformly arrange markers in the region where the potential landslide body is located. The second potential landslide body geological parameter acquisition unit is configured to acquire visual images of all the markers through computer vision with a fixed view angle. The third potential landslide body geological parameter acquisition unit is configured to acquire the moving track of the same marker along the time process. The fourth potential landslide body geological parameter acquisition unit is configured to determine the sliding surface of the potential landslide body through the moving track. The fifth potential landslide body geological parameter acquisition unit is configured to construct the vertical plane geological drawing of the potential landslide body based on the sliding surface, and the vertical plane geological drawing passes through the leading edge and trailing edge of the sliding surface. The sixth potential landslide body geological parameter acquisition unit is configured to equally divide the potential landslide body vertically into a plurality of soil strips and acquire the internal friction angle and cohesion of each soil strip through the vertical plane geological drawing. The seventh potential landslide body geological parameter acquisition unit is configured to acquire the self-weight of each soil strip, the sliding surface length of the water body in the water environment, and the inclination angle of the sliding surface. The eighth potential landslide body geological parameter acquisition unit is configured to integrate the internal friction angle, the cohesion, the self-weight, the sliding surface length, and the inclination angle into the geological parameters.

[0083] Further, the potential landslide body water-entry sliding speed calculation module 2 specifically comprises a first potential landslide body water-entry sliding speed calculation unit, a second potential landslide body water-entry sliding speed calculation unit, and a third potential landslide body water-entry sliding speed calculation unit, which are electrically connected in sequence.

[0084] The first potential landslide body water-entry sliding speed calculation unit is configured to iteratively calculate the water-entry sliding speed of the current soil strip from the start of the sliding of the potential landslide body through formula (1): (1).

[0085] The first potential landslide body water-entry sliding speed calculation unit is configured to iteratively calculate the water-entry sliding speed of the current soil strip from the start of the sliding of the potential landslide body through formula (1): is the sliding velocity of the potential landslide body at the i-th moment during the sliding process, is the iteration step, taking 0.01 to 0.1 seconds, is the mass of the current soil strip, is the gravitational acceleration, is the inclination angle, is the cohesion of the current soil strip, is the length of the sliding surface, is the dynamic friction angle, taking 0.7 to 0.85 times the internal friction angle, is the water resistance. The second potential landslide body water entry sliding velocity calculation unit is configured to iteratively calculate the water entry sliding velocity of the current soil strip based on formula (1) until the current soil strip starts to contact the water body.

[0086] The third potential landslide body water entry sliding velocity calculation unit is configured to obtain the water entry sliding velocities of all the soil strips and take an average value to obtain the water entry sliding velocity of the potential landslide body.

[0087] The third potential landslide body water entry sliding velocity calculation unit is configured to obtain the water entry sliding velocities of all the soil strips and take an average value to obtain the water entry sliding velocity of the potential landslide body.

[0088] Further, the initial surge wave height calculation module 3 is specifically configured to calculate the initial wave height caused by the potential landslide body by formula (2): (2).

[0089] wherein, is the vertical impact wave height caused by the potential landslide body, is the water entry sliding velocity of the potential landslide body, is the water entry volume of the potential landslide body, equal to the sum of the volumes of the soil strips entering the water, is the catchment area of the potential landslide body, equal to the sum of the water entry areas of the front-end soil strips in the sliding direction, is the horizontal impact correction term caused by the potential landslide body, is the initial wave height caused by the potential landslide body.

[0090] Further, the residual surge wave height calculation module 5 specifically includes a first residual surge wave height calculation unit and a second residual surge wave height calculation unit connected in sequence; the first residual surge wave height calculation unit is electrically connected with the surge and impact point distance acquisition module 4, and the second residual surge wave height calculation unit is electrically connected with the residual wave height classification module 6.

[0091] wherein, the first residual surge wave height calculation unit is configured to calculate the residual wave height of the current impact point by formula (3): (3).

[0092] wherein, is the residual wave height of the current impact point,​ The straight-line distance between the current impact point and the initial wave height. This is the attenuation coefficient.

[0093] The second surge residual wave height calculation unit is used to replace the one in formula (3). The remaining wave height for each straight-line distance is calculated separately.

[0094] It should be noted that this embodiment is a functional module embodiment based on the above method embodiment. For the preferred, extended, limited, exemplified and principle explanation parts of this embodiment, please refer to the above embodiment. This embodiment will not repeat them.

[0095] This embodiment obtains the geological parameters of potential landslide bodies based on a preset measurement strategy; substitutes the geological parameters into the landslide velocity formula to calculate the entry velocity of the potential landslide body into the water; calculates the initial wave height caused by the potential landslide body using the surge formula based on the entry velocity; obtains several straight-line distances between the entry end of the potential landslide body and different impact points on the bank to be protected; substitutes the initial wave height and each straight-line distance into the wave height exponential decay model to calculate the remaining wave height when the initial wave height reaches each impact point; classifies all remaining wave heights according to preset protection safety standards to obtain at least two wave height zones; defines a protection level based on a wave height zone, with the level of all protection levels increasing as the values ​​of all wave height zones increase; defines a protection measure based on a protection level, with the protection effect of all protection measures increasing as the levels of all protection levels increase; obtains the protection level corresponding to the remaining wave height at each impact point and constructs corresponding protection measures based on their respective protection levels. This embodiment performs continuous data processing and calculation from the start of the landslide to the attenuation of the surge at the shore. It also considers the impact of surges at different distances on the shore and defines different levels of protection measures based on the impact of surges at different distances. For example, if the remaining wave height is greater than three meters, a breakwater and stilling sill are built; if the remaining wave height is between one and three meters, a breakwater forest is planted; and if the remaining wave height is less than one meter, only a stilling sill is laid. Compared with the prior experience of existing technologies, this embodiment has quantitative standards, which can provide data support for surge prevention and control, and proposes a simple and accurate calculation method.

[0096] like Figure 3 As shown, this embodiment provides an embodiment of an electronic device. In this embodiment, the electronic device 10 includes a processor 101 and a memory 102 coupled to the processor 101.

[0097] The memory 102 stores program instructions for implementing the graded protection method for landslide surges in any of the above embodiments.

[0098] The processor 101 is used to execute program instructions stored in the memory 102 for graded protection against landslide surges.

[0099] The processor 101 can also be called a CPU (Central Processing Unit). The processor 101 can be an integrated circuit chip having data processing capability. The processor 101 can also be a general-purpose processor, a digital data processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0100] Further, Figure 4 For a structural schematic diagram of the storage medium of an embodiment of the present application, the storage medium 11 of the embodiment of the present application stores program instructions 111 capable of implementing all the methods described above. The program instructions 111 can be stored in the storage medium in the form of a software product, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes, or a terminal device such as a computer, a server, a mobile phone, a tablet, etc.

[0101] In several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the apparatus embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, another division manner can be used, for example, a plurality of units or components can be combined or integrated into another apparatus, or some features can be omitted or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, apparatuses or units, and can be electrical, mechanical or other forms.

[0102] In addition, the various functional units in the embodiments of the present application can be integrated in one processing unit, or each can exist as an independent physical unit, or two or more than two of them can be integrated in one physical unit. The above-mentioned integrated unit can be implemented in the form of hardware, or in the form of a software functional unit. The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

[0103] The specific embodiments of the present application are described in detail above, but only as an example, and the present application is not limited to the specific embodiments described above. Any equivalent modification or replacement of the present application made by those skilled in the art is also within the scope of the present application, and therefore, any equivalent transformation and modification, improvement, etc. made without departing from the spirit and principle range of the present application should be included in the scope of the present application.

Claims

1. A graded protection method for landslide surges, wherein the graded protection method is applied to a potential landslide body in a water environment, wherein the end of the water environment away from the potential landslide body is the bank to be protected, characterized in that, The graded protection method includes: Step S1: Obtain the geological parameters of the potential landslide body based on a preset measurement strategy; Step S2: Substitute the geological parameters into the sliding velocity formula to calculate the entry velocity of the potential landslide body into the water; Step S3: Calculate the initial wave height caused by the potential landslide body based on the water entry velocity using the surge formula; Step S4: Obtain several straight-line distances between the water inlet end of the potential landslide body and different impact points on the bank to be protected; Step S5: Substitute the initial wave height and each straight-line distance into the wave height exponential decay model to calculate the remaining wave height when the initial wave height reaches each impact point. Step S6: Classify all remaining wave heights based on preset protection safety standards to obtain at least two wave height zones; Step S7: Define a protection level based on a wave height zone. The level of all protection levels increases as the values ​​of all wave height zones increase. Step S8: Define a protective measure based on a protection level. The protective effect of all protective measures increases as the protection level increases. Step S9: Obtain the protection level corresponding to the remaining wave height at each impact point and construct corresponding protection measures based on their respective protection levels.

2. The graded protection method according to claim 1, characterized in that, Step S9 involves obtaining the protection level corresponding to the remaining wave height at each impact point and constructing corresponding protective measures based on each protection level. This includes: Step S10: Obtain a digital model of the aquatic environment, the digital model including the potential landslide bodies and the banks to be protected located on both sides of the water body in the aquatic environment; Step S20: Mark the geological parameters on the potential landslide body; Step S30: Fill in the protective measures of different protection levels with different colors; Step S40: The complete landslide and surge process of the potential landslide body is simulated using the dynamic simulation function of the preset software, and a progress bar is added based on the dynamic time sequence. Step S50: Place the progress bar at the bottom of the digital model; In step S60, the digital model processed by steps S20 to S50 is sent to an external visualization terminal.

3. The graded protection method according to claim 2, characterized in that, Step S60 involves sending the digital model processed through steps S20 to S50 to an external visualization terminal, followed by: Step S100: In response to a touch operation from an external visualization terminal, the digital model is turned on for display; Step S200: Identify the operation type of the touch operation and enable different demonstration effects based on different operation types.

4. The graded protection method according to claim 1, characterized in that, Step S1, obtaining the geological parameters of the potential landslide body based on a preset measurement strategy, including: Step S11: Evenly distribute markers in the area where the potential landslide body is located; Step S12: Obtain visual images of all markers using computer vision from a fixed perspective; Step S13: Obtain the movement trajectory of the same marker along the time process; Step S14: Determine the sliding surface of the potential landslide body through the movement trajectory; Step S15: Construct a vertical geological map of the potential landslide body based on the sliding surface, the vertical geological map passing through the front and rear edges of the sliding surface; Step S16: Divide the potential landslide body vertically into several equal soil strips, and obtain the internal friction angle and cohesion of each soil strip using the vertical geological map. Step S17: Obtain the self-weight of each soil strip, the length of the sliding surface with respect to the water body in the aquatic environment, and the inclination angle of the sliding surface; Step S18: Integrate the internal friction angle, the cohesion, the self-weight, the slip surface length, and the dip angle into the geological parameters.

5. The graded protection method according to claim 4, characterized in that, Step S2, substituting the geological parameters into the sliding velocity formula to calculate the entry velocity of the potential landslide body into water, includes: Step S21, iterate the water entry velocity of the current soil strip from the moment the potential landslide body begins to slide using equation (1): （1）； in, For the first time during the sliding process of the potential landslide body The sliding speed at that moment The iteration step size is set to 0.01 to 0.1 seconds. , Given the current quality of the soil strips, It is the acceleration due to gravity. The tilt angle is... The cohesion of the current soil strip, The length of the sliding surface, The kinetic friction angle is taken as 0.7 to 0.85 times the aforementioned internal friction angle. For water resistance; Step S22: Based on equation (1), iterate until the current soil strip begins to contact the water body, and obtain the current soil strip's entry velocity into the water; Step S23: Obtain the entry velocity of all soil strips into water and take the average value to obtain the entry velocity of the potential landslide body into water.

6. The graded protection method according to claim 5, characterized in that, Step S3, calculating the initial wave height caused by the potential landslide body based on the water entry velocity using the surge formula, includes: Step S31, calculate the initial wave height caused by the potential landslide body through (2): （2）； in, The vertical impact wave height caused by the potential landslide body. The entry velocity of the potential landslide body into the water is [value missing]. The volume of the potential landslide body entering the water is equal to the sum of the volumes of the soil strips entering the water. The catchment area of ​​the potential landslide body is equal to the sum of the water ingress areas of the first layer of soil at the leading edge of the sliding direction. The horizontal impact correction term for the potential landslide mass. The initial wave height caused by the potential landslide body.

7. The graded protection method according to claim 6, characterized in that, Step S5: Substitute the initial wave height and each straight-line distance into the wave height exponential decay model to calculate the remaining wave height when the initial wave height reaches each impact point, including: Step S51, calculate the remaining wave height at the current impact point using equation (3): （3）； in, This represents the remaining wave height at the current impact point. The straight-line distance between the current impact point and the initial wave height. The attenuation coefficient; Step S52, by replacing the part in formula (3) The remaining wave height for each straight-line distance is calculated separately.

8. A graded protection device for landslide surges, wherein the graded protection device is applied to the graded protection method as described in any one of claims 1 to 7, characterized in that, The graded protection device includes: The potential landslide geological parameter acquisition module is used to acquire the geological parameters of the potential landslide based on a preset measurement strategy; The potential landslide body entry velocity calculation module is used to substitute the geological parameters into the velocity calculation formula to calculate the entry velocity of the potential landslide body into water. The initial wave height calculation module is used to calculate the initial wave height caused by the potential landslide body based on the water entry velocity using the wave formula. The surge and impact point distance acquisition module is used to acquire several straight-line distances between the water inlet of the potential landslide body and different impact points on the bank to be protected. The surge residual wave height calculation module is used to substitute the initial wave height and each straight-line distance into the wave height exponential decay model to calculate the residual wave height when the initial wave height reaches each impact point. The remaining wave height classification module is used to classify all remaining wave heights based on preset protection safety specifications, resulting in at least two wave height partitions; The protection level definition module is used to define a protection level based on a wave height zone. The level of all protection levels increases as the values ​​of all wave height zones increase. The protective measure definition module is used to define a protective measure based on a protection level. The protective effect of all protective measures increases as the protection level increases. The protective measures construction module is used to obtain the protection level corresponding to the remaining wave height at each impact point and construct corresponding protective measures based on the respective protection level.

9. An electronic device, characterized in that, The method includes a processor and a memory coupled to the processor, the memory storing program instructions executable by the processor; when the processor executes the program instructions stored in the memory, it implements the hierarchical protection method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores program instructions, which, when executed by a processor, enable the hierarchical protection method as described in any one of claims 1 to 7.

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