A method, system, and electronic equipment for determining the main sliding direction of a slope landslide.

Abstract

This invention discloses a method, system, and electronic device for determining the main sliding direction of a slope landslide, relating to the field of data processing technology. After determining the soil parameters of the slope based on a constructed geometric model, this invention obtains soil strip information of the slope with a set safety factor under different soil parameters. Then, based on the soil strip information, it determines the main sliding direction angle of the slope and draws contour maps of the main sliding direction angle corresponding to different soil parameters. In practical applications, using these drawn contour maps and the actually obtained soil parameters, the main sliding direction of the slope to be monitored can be accurately determined.

Description

Technical Field

[0001] This invention relates to the field of data processing technology, and in particular to a method, system, and electronic device for determining the main sliding direction of a slope landslide. Background Technology

[0002] With economic development, China's infrastructure construction is constantly improving, and many landslide problems are encountered during engineering construction. Under the influence of earthquakes, slope engineering faces even more complex problems, posing a significant challenge to scholars. Identifying potential sliding surfaces in slope management is crucial for slope protection, and identifying the principal sliding direction of the landslide body is of paramount importance for slope reinforcement, facilitating the determination of the anti-slide direction in practical engineering. Many academic studies focus on searching for slope sliding surfaces, with little attention paid to the principal sliding direction. Therefore, a new method for determining the principal sliding direction of slope landslide bodies is urgently needed to achieve accurate determination. Summary of the Invention

[0003] To address the aforementioned problems in the existing technology, this invention provides a method, system, and electronic device for determining the main sliding direction of a slope landslide, thereby improving the accuracy of determining the main sliding direction of a slope landslide.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] A method for determining the main sliding direction of a slope landslide includes:

[0006] Establish a geometric model of the slope;

[0007] The soil parameters of the slope are determined based on the geometric model.

[0008] Obtain soil strip information for slopes with a set safety factor under different soil parameters;

[0009] Based on the slope soil strip information, the main sliding direction angle of the slope is determined, and contour maps of the main sliding direction angle corresponding to different soil parameters are drawn.

[0010] Obtain soil parameters for the slope to be monitored;

[0011] The main sliding direction angle of the slope to be monitored is determined based on the soil parameters of the slope using the contour map, so as to obtain the main sliding direction of the slope to be monitored.

[0012] Optionally, the soil parameters include: internal friction angle, cohesion, and soil weight.

[0013] Optionally, the setting value is 1.

[0014] Optionally, obtaining slope soil strip information with a set slope safety factor under different soil parameters, previously including:

[0015] Multiple cohesion and internal friction angles were designed to obtain the set soil parameters;

[0016] For each set of soil parameters, the slope / W module in Geo-Studio software is used for modeling and calculation, and the force value is obtained by changing the horizontal seismic coefficient.

[0017] The force value corresponding to the critical sliding surface is selected from the force value results, and the corresponding horizontal seismic coefficient is recorded to generate the slope soil strip information; the slope safety factor is characterized as a set value based on the force value corresponding to the critical sliding surface selected from the force value results.

[0018] Optionally, the force perpendicular to the sliding surface direction is:

[0019] N m =w*cosα m -m*H k *10*sinα m -p li ;

[0020] In the formula, N m α is the force perpendicular to the sliding surface. m H is the angle between the tangent to the sliding surface and the horizontal line. k ρ is the horizontal seismic coefficient corresponding to the critical sliding surface value, m is the mass of the sliding body, w is the weight of the sliding body, and p li This refers to the pore hydraulics of the sliding body.

[0021] Optionally, the process of determining the principal slip direction angle of the slope based on the slope soil strip information includes:

[0022] The unbalanced force parallel to the sliding surface is determined based on the slope soil strip information;

[0023] Continuously adjust the angle between the tangent of the sliding surface and the horizontal line until the unbalanced force parallel to the sliding surface approaches zero or equals zero within the set range. Then, determine the angle between the tangent of the sliding surface and the horizontal line at this point as the main sliding direction angle of the slope.

[0024] Optionally, the unbalanced force parallel to the sliding surface direction is:

[0025]

[0026] In the formula, F u The unbalanced force is parallel to the direction of the sliding surface. Let c be the internal friction angle. li It represents the cohesive force of the sliding body.

[0027] According to specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0028] The method for determining the main sliding direction of a slope provided by this invention involves determining the soil parameters of the slope based on a constructed geometric model, obtaining soil strip information of the slope with a set safety factor under different soil parameters, then determining the main sliding direction angle of the slope based on the soil strip information, and drawing contour maps of the main sliding direction angle corresponding to different soil parameters. In practical applications, the main sliding direction of the slope to be monitored can be accurately determined by using this drawn contour map based on the actually obtained soil parameters.

[0029] In addition, the present invention also provides the following embodiments:

[0030] A system for determining the main sliding direction of a slope landslide, applied to the method for determining the main sliding direction of a slope landslide provided above; the system includes:

[0031] The model building module is used to create the geometric model of the slope;

[0032] The parameter determination module is used to determine the soil parameters of the slope based on the geometric model.

[0033] The information acquisition module is used to acquire slope soil strip information with a set slope safety factor under different soil parameters;

[0034] The graphics drawing module is used to determine the main sliding direction angle of the slope based on the slope soil strip information, and to draw contour maps of the main sliding direction angle corresponding to different soil parameters;

[0035] The parameter acquisition module is used to acquire the soil parameters of the slope to be monitored.

[0036] The direction determination module is used to determine the main sliding direction angle of the slope to be monitored based on the soil parameters of the slope to be monitored using the contour map, so as to obtain the main sliding direction of the slope to be monitored.

[0037] An electronic device, comprising:

[0038] Memory, used to store computer programs;

[0039] A processor, connected to the memory, is used to retrieve and execute the computer program to implement the above-described method for determining the main sliding direction of a slope landslide.

[0040] Optionally, the memory is a computer-readable storage medium.

[0041] Since the technical effects achieved by the two implementation structures provided by the present invention are the same as those achieved by the method for determining the main sliding direction of a slope landslide provided by the present invention, they will not be described again here. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A flowchart of the method for determining the main sliding direction of a slope landslide provided by the present invention;

[0044] Figure 2 The slope geometric model diagram provided by this invention;

[0045] Figure 3 A schematic diagram of the main sliding direction angle of the slide body provided by the present invention;

[0046] Figure 4 The contour maps of different internal friction angles, cohesion and principal sliding direction angles provided for this invention. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] The purpose of this invention is to provide a method, system, and electronic device for determining the main sliding direction of a slope landslide, which can accurately determine the main sliding direction of the slope landslide.

[0049] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] like Figure 1 As shown, the method for determining the main sliding direction of a slope landslide provided by the present invention includes:

[0051] Step 100: Establish the geometric model of the slope.

[0052] Step 101: Determine the soil parameters of the slope based on the geometric model. The process of determining the soil parameters is as follows: While ensuring the geometric model and other parameters remain unchanged, design g cohesion forces and internal friction angles, denoted as C1, C2, C3...C... g , In this invention, soil parameters include internal friction angle, cohesion, soil weight, etc., but are not limited to these.

[0053] Step 102: Obtain slope soil strip information with a set slope safety factor under different soil parameters. The implementation process for this step is as follows:

[0054] Step 1021: Design multiple cohesion and internal friction angles to obtain the set soil parameters.

[0055] Step 1022: For each set of soil parameters, use the slope / W module in Geo-Studio software to perform modeling and calculation, and obtain the force value results by changing the horizontal seismic coefficient.

[0056] Step 1022: Select the force value corresponding to the critical slip surface from the force value results, and record the corresponding horizontal seismic coefficient to generate slope soil strip information. The slope safety factor is represented by the force value corresponding to the critical slip surface selected from the force value results as the set value.

[0057] In practical applications, based on each set of soil parameters designed in step 101 above... Modeling and calculations were performed using the slope / W module in Geo-Studio software. The horizontal seismic coefficient was changed to obtain the safety factor. The calculated force values ​​were denoted as FS1, FS2, FS3...FS K Select the force value corresponding to the critical slip surface (with a safety factor of 1), and record the corresponding horizontal seismic coefficient H. K .

[0058] At this point, the information of the blocks corresponding to the critical sliding surface of the slope is exported, and the mass m, weight w, and pore hydraulic p of the sliding body are calculated respectively. li and cohesion c li .

[0059] Step 103: Determine the principal sliding direction angle of the slope based on the slope soil strip information, and draw contour maps of the principal sliding direction angle corresponding to different soil parameters. The process of determining the principal sliding direction angle of the slope based on the slope soil strip information can be as follows:

[0060] Step 1031: Determine the unbalanced force parallel to the sliding surface based on the slope soil strip information.

[0061] Step 1032: Continuously adjust the angle between the tangent of the sliding surface and the horizontal line until the unbalanced force parallel to the sliding surface approaches zero or equals zero within the set range. Then, determine the angle between the tangent of the sliding surface and the horizontal line at this time as the main sliding direction angle of the slope.

[0062] Based on the above description, in practical application, the implementation process of step 103 is as follows:

[0063] The calculation is performed using Python, assuming the angle between the tangent to the sliding surface and the horizontal line is α. m According to formula N u =w*cosα m -m*H k *10*sinα m -p li Calculate the value of the force perpendicular to the sliding surface.

[0064] According to the formula Calculate the unbalanced force F parallel to the sliding surface. u The value of . In the formula, It is the internal friction angle.

[0065] By continuously changing α m Get the corresponding F u The value is calculated n times and denoted as F. u1 ,F u2 ,F u3 ,...,F un Select F un α corresponding to ≈0 m The angle between the main sliding direction of the slope under a horizontal earthquake is called the main sliding direction angle.

[0066] Step 104: Obtain the soil parameters of the slope to be monitored.

[0067] Step 105: Use contour maps to determine the main sliding direction angle of the slope to be monitored based on the soil parameters of the slope to be monitored, so as to obtain the main sliding direction of the slope to be monitored.

[0068] The following embodiment illustrates the specific implementation process and advantages of the method for determining the main sliding direction of a slope landslide provided by the present invention.

[0069] like Figure 2 As shown, in this embodiment, the soil slope is 50m wide, 17m high, with a base height of 5m and a slope angle of 30.96°. The slope is composed of homogeneous soil with an average cohesion (c) of 11 kPa and an internal friction angle of [missing value]. The average angle is 20°, and the unit density γ = 18 kN / m³. 3 .

[0070] First, a geometric model of a homogeneous soil slope was established using the Slope / W module in Geo-Studio software. Then, multiple sets of soil parameters were calculated, namely: (C1 = 16, ),(C2=21, (C3 = 26, ) ), (C4=31, (C5=12, (C6=13, (C7=14, (C8 = 15, ) C9 = 17 (C) 10 =20, ), (C 11 =22, ), (C 12 =23, ), (C 13 =24, ), (C 14 =25, ), (C 15 =31, ), (C 16 =11, The horizontal seismic coefficients corresponding to the sliding surface with a safety factor of 1 when the slope is in a critical state are 0.019, 0.153, 0.271, 0.388, and 0.5, respectively. Then, the block information of the critical sliding surface corresponding to the above 5 sets of cohesion and internal friction angle is sorted out, and the weight, mass, pore hydraulic force and cohesion of the sliding body are calculated for each set of data. The mass of the sliding body is calculated using formula (1), that is, the total weight divided by the gravitational acceleration (the gravitational acceleration value in this embodiment is 10 m / s²). 2 The weight of the sliding body is calculated using formula (2), which is the sum of the weights of each soil strip (in this embodiment, the weights of 30 soil strips are added together). The total pore hydraulic force is calculated using formula (3), and the total cohesion is calculated using formula (4). The calculation results are shown in Table 1.

[0071] Table 1 Calculation Results

[0072]

[0073]

[0074]

[0075] In the formula, w' i Let g be the weight of the i-th strip, g be the acceleration due to gravity, and a be the number of strips.

[0076]

[0077]

[0078]

[0079] In the formula, c i ' is the cohesion of the i-th strip, l i The base length of the strip.

[0080] Then, using MATLAB software, the value N of the force perpendicular to the sliding surface is calculated according to formula (5). u The calculated value N of the force perpendicular to the sliding surface direction. u Substituting into formula (6), the angle α between the tangent of the sliding surface and the horizontal line is continuously changed. m The value until the unbalanced force F u If the value is close to 1, then the angle α between the tangent of the sliding surface and the horizontal line is... m That is, the angle between the main sliding directions of the slider (e.g.) Figure 3 (As shown). The principal sliding directions of the sliding body calculated based on the above 5 cohesion forces are: 14.6124°, 11.4108°, 15.5246°, 18.2774°, 12.1671°, 18.2026°, 17.8040°, 17.5233°, 17.1638°, 16.8205°, 16.1699°, 13.6450°, 12.5674°, 12.38286°, 12.96503°, and 12.829°.

[0081] N u =w*cosα m -m*H k *10*sinα m -p li (5)

[0082] In the formula: H k The horizontal seismic coefficient that makes the slope in a critical state, that is, the horizontal seismic coefficient corresponding to the slope safety factor of about 1.

[0083]

[0084] Finally, contour plots were drawn for the principal sliding direction angles corresponding to five different cohesion and internal friction angles (e.g., ...). Figure 4 As shown), the angle of the main sliding direction is selected based on cohesion and the angle of internal friction. For example, under the condition that the slope model remains unchanged, when c = 25.96, The corresponding main sliding direction angle (i.e., the main sliding direction angle) is 12.29°.

[0085] Furthermore, the present invention also provides the following implementation structure:

[0086] A system for determining the main sliding direction of a slope landslide, applied to the method described above for determining the main sliding direction of a slope landslide. The system includes:

[0087] The model building module is used to create the geometric model of the slope.

[0088] The parameter determination module is used to determine the soil parameters of the slope based on the geometric model.

[0089] The information acquisition module is used to acquire slope soil strip information with a set slope safety factor under different soil parameters.

[0090] The graphics drawing module is used to determine the main sliding direction angle of the slope based on the slope soil strip information, and to draw contour maps of the main sliding direction angle corresponding to different soil parameters.

[0091] The parameter acquisition module is used to acquire the soil parameters of the slope to be monitored.

[0092] The direction determination module is used to determine the main sliding direction angle of the slope to be monitored based on the soil parameters of the slope using contour maps, so as to obtain the main sliding direction of the slope to be monitored.

[0093] An electronic device, comprising:

[0094] Memory is used to store computer programs.

[0095] A processor, connected to a memory, is used to retrieve and execute a computer program to implement the method described above for determining the main sliding direction of a slope landslide.

[0096] Furthermore, when the computer program in the aforementioned memory is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, random access memory, magnetic disks, or optical disks.

[0097] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0098] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for determining the main sliding direction of a slope slide, characterized in that, include: Establish a geometric model of the slope; The soil parameters of the slope are determined based on the geometric model. Multiple cohesion and internal friction angles were designed to obtain the set soil parameters; For each set of soil parameters, the slope / W module in Geo-Studio software is used for modeling and calculation, and the force value is obtained by changing the horizontal seismic coefficient. Select the force value corresponding to the critical sliding surface from the force value results, and record the corresponding horizontal seismic coefficient at this time to generate the slope soil strip information; The slope safety factor is defined as a set value based on the force value corresponding to the critical sliding surface selected from the force value results; wherein, the slope soil strip information corresponding to the critical sliding surface of the slope is exported, and the mass, weight, pore water force and cohesion of the sliding body are calculated respectively. Obtain slope soil strip information with a set value for the slope safety factor under different soil parameters; wherein, the set value is 1; The main sliding direction angle of the slope is determined based on the slope soil strip information, and contour maps of the main sliding direction angle corresponding to different soil parameters are drawn. The process of determining the main sliding direction angle of the slope based on the slope soil strip information includes: determining the unbalanced force parallel to the sliding surface based on the slope soil strip information; continuously adjusting the angle between the tangent of the sliding surface and the horizontal line until the unbalanced force parallel to the sliding surface approaches zero or equals zero within a set range, and determining the angle between the tangent of the sliding surface and the horizontal line at this time as the main sliding direction angle of the slope. Obtain soil parameters for the slope to be monitored; The main sliding direction angle of the slope to be monitored is determined based on the soil parameters of the slope using the contour map, so as to obtain the main sliding direction of the slope to be monitored.

2. The method of claim 1, wherein, The soil parameters include: internal friction angle, cohesion, and soil weight.

3. The method of claim 1, wherein, The force perpendicular to the sliding surface is: ； wherein, is the force perpendicular to the sliding surface direction, is the angle between the tangent of the sliding surface and the horizontal line, is the horizontal seismic coefficient corresponding to the critical sliding surface, is the mass of the sliding body, is the weight of the sliding body, is the pore water pressure of the sliding body.

4. The method of claim 1, wherein, The unbalanced force parallel to the sliding surface is: ； wherein is the unbalanced force in the direction parallel to the sliding surface, is the internal friction angle, is the cohesion of the sliding mass.

5. A system for determining the main sliding direction of a slope slide, characterized in that it comprises: The system is applied to the method for determining the main sliding direction of a slope landslide as described in any one of claims 1-4; the system comprises: The model building module is used to create the geometric model of the slope; The parameter determination module is used to determine the soil parameters of the slope based on the geometric model. The information acquisition module is used to acquire slope soil strip information with a set slope safety factor under different soil parameters; The graphics drawing module is used to determine the main sliding direction angle of the slope based on the slope soil strip information, and to draw contour maps of the main sliding direction angle corresponding to different soil parameters; The parameter acquisition module is used to acquire the soil parameters of the slope to be monitored. The direction determination module is used to determine the main sliding direction angle of the slope to be monitored based on the soil parameters of the slope to be monitored using the contour map, so as to obtain the main sliding direction of the slope to be monitored.

6. An electronic device, characterized in that, include: Memory, used to store computer programs; A processor, connected to the memory, is configured to retrieve and execute the computer program to implement the method for determining the main sliding direction of a slope landslide as described in any one of claims 1-4.

7. The electronic device according to claim 6, characterized in that, The memory is a computer-readable storage medium.

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