Design method, device, equipment and readable storage medium for slope anchor cable support system

Abstract

The present invention provides a design method, device, equipment and readable storage medium for a slope anchor cable support system, which relates to the technical field of slope support, and includes obtaining the geological information and material parameters of the slope to be predicted and a point safety factor prediction model; inputting the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor; taking the predicted landslide area with a point safety factor less than a preset threshold as an unstable area; dividing the unstable area into soil strips, and calculating the local concentrated force required for the soil strips when the point safety factor of the slope reaches the preset threshold based on the Janbu method of local anchoring force; determining the uniform force of each soil strip according to the local concentrated force, and using the uniform force of each soil strip to design the anchor cable parameters of the unstable area to generate a slope anchor cable support system; the present invention is used to design the anchor cable parameters for the predicted unstable area to enhance the stability and safety of the slope.

Description

Technical Field

[0001] The present invention relates to the technical field of slope support, and in particular to a design method, device, equipment and readable storage medium for a slope anchor cable support system. Background Art

[0002] The current slope anchor cable support measures usually adopt the form of large-scale full slope layout, that is, the anchor cable support structure is arranged on the slope surface in a large area to improve the stability of the slope. However, the large-scale arrangement of prestressed anchor cables to support the entire slope will cause a waste of resources. Therefore, anchor cable support measures are only used for local unstable areas of the slope, and soil nail structures are used for shallow reinforcement in other areas. This can not only ensure the overall stability of the slope, but also minimize the waste of support resources and promote resource conservation and efficient utilization. How to design the anchor cable support system for the unstable area of the slope is a difficult problem that needs to be solved in this field. Summary of the invention

[0003] The purpose of the present invention is to provide a slope anchor cable support system design method, device, equipment and readable storage medium to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] In a first aspect, the present application provides a slope anchor cable support system design method, comprising:

[0005] Obtain the geological information and material parameters of the slope to be predicted and the trained point safety factor prediction model;

[0006] Input the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor;

[0007] The stability of the predicted landslide area is determined according to the point safety factor, and the predicted landslide area with a point safety factor less than a preset threshold is regarded as an unstable area;

[0008] The unstable area is divided into soil strips, and based on the simple distribution method of local anchoring force, the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold is calculated;

[0009] The uniformly distributed force of each soil strip is determined according to the local concentrated force, and the uniformly distributed force of each soil strip is used to design anchor cable parameters in the unstable area to generate a slope anchor cable support system.

[0010] In a second aspect, the present application also provides a slope anchor cable support system design device, comprising:

[0011] Acquisition module: obtains the geological information and material parameters of the slope to be predicted and the trained point safety factor prediction model;

[0012] Prediction module: Input the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor;

[0013] Judgment module: Judge the stability of the predicted landslide area according to the point safety factor, and regard the predicted landslide area with the point safety factor less than the preset threshold as the unstable area;

[0014] Division module: Divide the unstable area into soil strips, and calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold based on the Janbu method with local anchoring force;

[0015] Parameter design module: Determine the uniform force of each soil strip according to the local concentrated force, and use the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate the slope cable anchor support system.

[0016] Thirdly, the present application also provides a slope cable anchor support system design device, including:

[0017] A memory for storing a computer program;

[0018] A processor for implementing the steps of the slope cable anchor support system design method when executing the computer program.

[0019] Fourthly, the present application also provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned slope cable anchor support system design method are implemented.

[0020] The beneficial effects of the present invention are as follows:

[0021] By using the point safety factor prediction model, the present invention can quickly predict the landslide area and safety factor of the slope, avoiding the cumbersome on-site investigation and numerical simulation in the traditional method, improving the design efficiency, and enhancing the engineering safety and quality. According to the predicted unstable area, the present invention conducts targeted cable anchor fixation, adopts the method of dividing soil strips, accurately calculates the local concentrated force required for each soil strip, thereby determining the required cable anchor force, and can more effectively design the cable anchor parameters to enhance the stability and safety of the slope.

[0022] Other features and advantages of the present invention will be described in the subsequent specification, and part of them will become obvious from the specification, or be understood by implementing the embodiments of the present invention. The objectives and other advantages of the present invention can be realized and obtained by the structures specifically pointed out in the written specification, claims, and drawings. Description of the Drawings

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0024] Figure 1 Schematic flow diagram of the design method for the slope anchor cable support system described in the embodiments of the present invention;

[0025] Figure 2 Three-dimensional model diagram of the slope described in the embodiments of the present invention;

[0026] Figure 3 Three-dimensional grid model diagram of the slope described in the embodiments of the present invention;

[0027] Figure 4 Numerical model diagram of the slope described in the embodiments of the present invention;

[0028] Figure 5 Displacement nephogram of the slope described in the embodiments of the present invention;

[0029] Figure 6 Distribution diagram of the point safety factor of the slope described in the embodiments of the present invention;

[0030] Figure 7 Layout diagram of the slope soil nail - anchor cable support system described in the embodiments of the present invention;

[0031] Figure 8 Schematic diagram of the force analysis of soil strips described in the embodiments of the present invention;

[0032] Figure 9 Simplified diagram of the anchor force of the anchor cable described in the embodiments of the present invention;

[0033] Figure 10 Schematic structural diagram of the design device for the slope anchor cable support system described in the embodiments of the present invention;

[0034] Figure 11 Schematic structural diagram of the design equipment for the slope anchor cable support system described in the embodiments of the present invention.

[0035] Markings in the figure:

[0036] 800. Design equipment for the slope anchor cable support system; 801. Processor; 802. Memory; 803. Multimedia component; 804. I / O interface; 805. Communication component. Detailed implementation manners

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the figures herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0038] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, further definition and explanation thereof are not required in subsequent figures. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0039] Embodiment 1:

[0040] This embodiment provides a design method for a slope anchor cable support system.

[0041] See Figure 1 , which shows that this method includes:

[0042] S1. Obtain the geological information and material parameters of the slope to be predicted, as well as the trained point safety factor prediction model;

[0043] Specifically, step S1 includes:

[0044] S11. Obtain the first information of several slopes, and use the first information to construct corresponding slope numerical models. The first information includes geological information and material parameters;

[0045] In this embodiment, through on-site investigations, satellite remote sensing technology, and unmanned aerial vehicle photography technology, etc., the geological information of the slope is obtained, including slope aspect, slope elevation, slope ratio, stratigraphic information, hydrological conditions, slope shape, and other information;

[0046] In this embodiment, by using methods such as on-site tests or laboratory tests, the material parameters of the slope rock and soil mass are obtained, including unit weight, elastic modulus, internal friction angle, cohesion, Poisson's ratio, shear modulus, dilation angle, porosity, water content, etc.

[0047] Specifically, step S11 includes:

[0048] S111. Based on the geological information, use 3D modeling software to construct a 3D slope model, as Figure 2 shown;

[0049] S112. Perform mesh division on the 3D geological model to generate a 3D slope mesh model diagram, as Figure 3 shown;

[0050] S113. Import the 3D slope mesh model diagram into simulation software, such as FLAC 3D software, group the slope body and the underlying bedrock and assign the actual material parameters of the slope respectively to construct a slope numerical model, as Figure 4 shown.

[0051] S12. Use the slope numerical model to calculate the second information of each slope. The second information includes the landslide area and its point safety factor. Use the first information as the input label and the second information as the output label to construct a data sample set;

[0052] Specifically, based on the constructed slope numerical model, carry out slope numerical model tests, simulate the slope instability process, and obtain the landslide area, including the landslide shape and the position of the slip surface, as Figure 5 shown;

[0053] Calculate the point safety factor of the slope based on existing algorithms, such as the point safety factor method, the transfer coefficient method, the simplified Bishop method, etc.

[0054] Combine the first information and the second information of the slope to establish a data sample set, and divide it according to a ratio of 4:1. Among them, 80% of the samples are used as the training set, and 20% of the samples are used as the test set.

[0055] S13. Build a BP neural network model, use the data sample set to train and test the BP neural network model, and obtain a point safety factor prediction model.

[0056] Based on the above embodiments, the method further includes:

[0057] S2. Input the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor, as Figure 6 shown;

[0058] Based on the above embodiments, the method further includes:

[0059] S3. Judge the stability of the predicted landslide area according to the point safety factor, and regard the predicted landslide area with a point safety factor less than the preset threshold as the unstable area;

[0060] Specifically, taking the preset threshold as 1.3 as the discrimination criterion for the stability state, the predicted landslide areas with a point safety factor greater than 1.3 are regarded as stable areas, the predicted landslide areas with a point safety factor greater than 1.2 and less than 1.3 are regarded as sub-stable areas, and the predicted landslide areas with a point safety factor less than 1.2 are regarded as unstable areas.

[0061] In this embodiment, based on the stability states of the various ranges of the slope body that have been divided, it is necessary to arrange soil nails or anchor cables according to different stability states to reinforce the slope, as Figure 7 shown. Among them, when the stability state of the landslide area is an unstable state, anchor cables need to be arranged to reinforce the slope; when the stability state of the landslide area is a sub-stable state, soil nails need to be arranged to reinforce the slope; when the stability state of the landslide area is a stable state, no reinforcement treatment is required. In the present invention, for the divided unstable areas, an anchor cable support system is designed for them.

[0062] Based on the above embodiments, the method further includes:

[0063] S4. Divide the unstable areas into soil strips, and based on the simplified Bishop method of local anchoring force, calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold;

[0064] Specifically, as Figure 8 、 Figure 9 shown, the step S4 includes:

[0065] S41. Conduct a force analysis on any one soil strip, and according to the static equilibrium condition, establish a first force equilibrium model with the resultant force in the vertical direction being zero and a second force equilibrium model with the resultant force in the horizontal direction being zero;

[0066] Specifically, the step S41 includes:

[0067] Judge whether there is an anchoring force on the current soil strip:

[0068] If so, conduct a force analysis on the current soil strip, and establish a first force equilibrium model of the current soil strip under the anchoring force, bottom tangential force, bottom normal force, inter-strip tangential force, and gravity, and a second force equilibrium model of the current soil strip under the anchoring force, bottom tangential force, and bottom normal force;

[0069] Specifically, according to the static equilibrium condition, when the resultant force in the vertical direction is zero, the first force equilibrium model of soil strip i is:

[0070]

[0071] In the formula, α i is the bottom inclination angle of soil strip i, w i is the unit weight of soil strip i, ΔX iis the resultant of the tangential forces between slices for slice i, where ΔX i = X i-1 - X i and X i-1 and X i are the tangential forces between slices in opposite directions, τ fi is the shear strength of slice i, N i is the normal force at the bottom of slice i, N aki represents the local concentrated force acting on slice i.

[0072] According to the static equilibrium condition, when the resultant horizontal force is zero, the second force equilibrium model of slice i is:

[0073] ΔE i = N i sinα i - T fi cosα i - N aki cosβ i

[0074] = (w i + ΔX i + N aki sinβ i )tanα i - T fi secα i - N aki cosβ i ;

[0075] In the formula, ΔE i is the resultant of the normal forces between slices for slice i, where ΔE i = X i - X i-1 and X i and X i-1 are the tangential forces between slices in opposite directions.

[0076] Otherwise, establish the first force equilibrium model of the current slice under the bottom tangential force, bottom normal force, inter-slice tangential force, and gravity, and the second force equilibrium model of the current slice under the bottom tangential force and bottom normal force.

[0077] Specifically, according to the static equilibrium condition, when the resultant vertical force is zero, the first force equilibrium model of slice i is:

[0078]

[0079] In the formula, α i is the bottom inclination angle of slice i, w i is the unit weight of slice i, ΔX iis the resultant of the tangential forces between slices for slice i, τ fi is the shear strength of slice i, N i is the normal force at the bottom of slice i.

[0080] According to the static equilibrium condition, when the resultant horizontal force is zero, the second force equilibrium model for slice i is:

[0081] ΔE i = N i sinα i - T fi cosα i = (w i + ΔX i )tanα i - T fi secα i ;

[0082] In the formula, ΔE i is the resultant of the normal forces between slices for slice i.

[0083] S42. Based on the Coulomb strength theory, establish the third force equilibrium model for any slice:

[0084]

[0085] In the formula, τ fi is the shear strength of slice i; c i is the cohesion of the slip surface at the bottom of slice i; is the internal friction angle of the slip surface at the bottom of slice i;

[0086] S43. Since the resultant horizontal force of all slices is zero, establish the point safety factor calculation model for the slope according to the first force equilibrium model, the second force equilibrium model, and the third force equilibrium model:

[0087]

[0088] In the formula, j is 0 or 1. When j = 1, it means there is an anchoring force on the slice. When j = 0, it means there is no anchoring force on the slice. m i is a calculation parameter, and its expression is:

[0089]

[0090] S44. Iteratively solve the point safety factor calculation model to calculate the local concentrated force required for each slice when the point safety factor of the slope reaches the preset threshold.

[0091] Specifically, the step S44 includes:

[0092] S441. Assign an initial value of the corresponding local concentrated force to each slice;

[0093] S442. Substitute the initial value of the applied local concentrated force into the point safety factor calculation model to calculate the current point safety factor of the slope;

[0094] S443. Determine whether the current point safety factor of the slope reaches the preset threshold of 1.3:

[0095] S444. If not, adjust the current local concentrated force of the soil strip and repeatedly substitute the current local concentrated force into the point safety factor calculation model for iterative calculation until the current point safety factor of the slope reaches the preset threshold;

[0096] S445. Take the current local concentrated force of each soil strip when the point safety factor of the slope reaches the preset threshold as the required local concentrated force.

[0097] Based on the above embodiments, the method further includes:

[0098] S5. Determine the uniform force of each soil strip according to the local concentrated force, and use the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate a slope cable anchor support system.

[0099] Specifically, the step S5 includes:

[0100] S51. Obtain the bottom length of each soil strip, and calculate the uniform force of each soil strip according to the required local concentrated force and the bottom length of each soil strip:

[0101]

[0102] where, l i represents the bottom length of soil strip i, and N iq represents the uniform force of soil strip i.

[0103] S52. Obtain the preset longitudinal spacing S H and the preset transverse spacing S V , and calculate the anchoring force of the cable anchor by using the preset longitudinal spacing, the preset transverse spacing and the uniform force of each soil strip:

[0104] N ak = N iq × S H × S V ;

[0105] where, N ak represents the anchoring force of the cable anchor.

[0106] S53. Design the cable anchor parameters for the unstable area based on the anchoring force of the cable anchor to generate a slope cable anchor support system;

[0107] In this embodiment, referring to the "Technical Code for Building Slope Engineering" or other slope-related codes, the cable anchor parameters are designed to obtain the final cable anchor design parameters, including the length, diameter, material, prestress, anchorage depth, etc. of the cable anchor.

[0108] Embodiment 2:

[0109] As Figure 10 shown, this embodiment provides a design device for a slope cable anchor support system, and the device includes:

[0110] An acquisition module: acquiring the geological information and material parameters of the slope to be predicted and the point safety factor prediction model that has been trained;

[0111] A prediction module: inputting the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor;

[0112] A judgment module: judging the stability of the predicted landslide area according to the point safety factor, and taking the predicted landslide area with a point safety factor less than the preset threshold as the unstable area;

[0113] A division module: dividing the unstable area into soil strips, and calculating the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold based on the Janbu method of local anchoring force;

[0114] A parameter design module: determining the uniform force of each soil strip according to the local concentrated force, and using the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate a slope cable anchor support system.

[0115] Based on the above embodiments, the acquisition module includes:

[0116] A first acquisition unit: acquiring the first information of several slopes, and constructing the corresponding slope numerical model by using the first information, where the first information includes geological information and material parameters;

[0117] A sample construction unit: calculating the second information of each slope by using the slope numerical model, where the second information includes the landslide area and its point safety factor, and constructing a data sample set with the first information as the input label and the second information as the output label;

[0118] A model building unit: building a neural network model, and training and testing the neural network model by using the data sample set to obtain a point safety factor prediction model.

[0119] Based on the above embodiments, the division module includes:

[0120] The first establishment unit: Conduct a force analysis on any soil strip, and establish a first force balance model with the resultant force in the vertical direction being zero and a second force balance model with the resultant force in the horizontal direction being zero according to the static equilibrium conditions.

[0121] The second establishment unit: Based on the Coulomb strength theory, establish a third force balance model for any soil strip.

[0122] The third establishment unit: Since the horizontal resultant force of all soil strips is zero, establish a point safety factor calculation model for the slope according to the first force balance model, the second force balance model, and the third force balance model.

[0123] The iteration unit: Iteratively solve the point safety factor calculation model, and calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches a preset threshold.

[0124] Based on the above embodiments, the first establishment unit includes:

[0125] Judge whether there is an anchoring force on the current soil strip:

[0126] If so, conduct a force analysis on the current soil strip, and establish a first force balance model of the current soil strip under the anchoring force, bottom tangential force, bottom normal force, inter-strip tangential force, and gravity, and a second force balance model of the current soil strip under the anchoring force, bottom tangential force, and bottom normal force.

[0127] Otherwise, establish a first force balance model of the current soil strip under the bottom tangential force, bottom normal force, inter-strip tangential force, and gravity, and a second force balance model of the current soil strip under the bottom tangential force and bottom normal force.

[0128] Based on the above embodiments, the iteration unit includes:

[0129] The assignment unit: Assign an initial value of the corresponding local concentrated force to each soil strip.

[0130] The first calculation unit: Substitute the initial value of the assigned local concentrated force into the point safety factor calculation model, and calculate the current point safety factor of the slope.

[0131] The judgment unit: Judge whether the current point safety factor of the slope reaches a preset threshold:

[0132] If not, adjust the current local concentrated force of the soil strip, and repeatedly substitute the current local concentrated force into the point safety factor calculation model for iterative calculation until the current point safety factor of the slope reaches a preset threshold.

[0133] The selection unit: Take the current local concentrated force of each soil strip when the point safety factor of the slope reaches a preset threshold as the required local concentrated force.

[0134] Based on the above embodiments, the parameter design module includes:

[0135] A second acquisition unit: acquires the bottom length of each soil strip, and calculates the uniform force of each soil strip according to the required local concentrated force and the bottom length of each soil strip;

[0136] A second calculation unit: acquires the preset longitudinal spacing and the preset transverse spacing of the anchor cables, and calculates the anchoring force of the anchor cables by using the preset longitudinal spacing, the preset transverse spacing and the uniform force of each soil strip;

[0137] A generation unit: designs the anchor cable parameters for the unstable area based on the anchoring force of the anchor cables, and generates a slope anchor cable support system.

[0138] It should be noted that regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated herein.

[0139] Embodiment 3:

[0140] Corresponding to the above method embodiment, in this embodiment, a slope anchor cable support system design device is further provided. A slope anchor cable support system design device described below can be correspondingly referred to the slope anchor cable support system design method described above.

[0141] Figure 11 It is a block diagram of a slope anchor cable support system design device 800 shown according to an exemplary embodiment. As Figure 11 shown, the slope anchor cable support system design device 800 may include: a processor 801, a memory 802. The slope anchor cable support system design device 800 may further include one or more of a multimedia component 803, an I / O interface 804, and a communication component 805.

[0142] Among them, the processor 801 is used to control the overall operation of the slope cable anchor support system design device 800 to complete all or part of the steps in the above-mentioned slope cable anchor support system design method. The memory 802 is used to store various types of data to support the operation of the slope cable anchor support system design device 800. These data may include, for example, instructions for any application program or method operating on the slope cable anchor support system design device 800, as well as application-related data, such as contact data, sent and received messages, pictures, audio, video, and so on. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk. The multimedia component 803 may include a screen and an audio component. Among them, the screen may be a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone, and the microphone is used to receive external audio signals. The received audio signal may be further stored in the memory 802 or sent through the communication component 805. The audio component further includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the slope cable anchor support system design device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, near field communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them. Therefore, the corresponding communication component 805 may include: a Wi-Fi module, a Bluetooth module, and an NFC module.

[0143] In an exemplary embodiment, the slope cable anchor support system design device 800 can be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components, and is used to execute the above-mentioned slope cable anchor support system design method.

[0144] In another exemplary embodiment, a computer-readable storage medium including program instructions is further provided. When the program instructions are executed by a processor, the steps of the above-mentioned slope cable anchor support system design method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the slope cable anchor support system design device 800 to complete the above-mentioned slope cable anchor support system design method.

[0145] Embodiment 4:

[0146] Corresponding to the above method embodiment, a readable storage medium is further provided in this embodiment. A readable storage medium described below can be correspondingly referred to with a slope cable anchor support system design method described above.

[0147] A readable storage medium has a computer program stored thereon. When the computer program is executed by a processor, the steps of the slope cable anchor support system design method in the above method embodiment are implemented.

[0148] The readable storage medium can specifically be various readable storage media such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disc that can store program codes.

[0149] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0150] As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A design method for a slope cable anchor support system, characterized in that, Including: Obtain the geological information and material parameters of the slope to be predicted and the trained point safety factor prediction model; Input the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor; Judge the stability of the predicted landslide area according to the point safety factor, and take the predicted landslide area with the point safety factor less than the preset threshold as the unstable area; Divide the unstable area into soil strips, and based on the Janbu method with local anchoring force, calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold; Determine the uniform force of each soil strip according to the local concentrated force, and use the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate the slope cable anchor support system; Among them, based on the Janbu method with local anchoring force, calculating the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold includes: Conduct a force analysis on any one soil strip, and according to the static equilibrium condition, establish a first force equilibrium model with the resultant force in the vertical direction being zero and a second force equilibrium model with the resultant force in the horizontal direction being zero; Based on the Coulomb strength theory, establish a third force equilibrium model for any one soil strip; Since the horizontal resultant force of all soil strips is zero, establish a point safety factor calculation model for the slope according to the first force equilibrium model, the second force equilibrium model and the third force equilibrium model; Iteratively solve the point safety factor calculation model to calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold; Among them, determining the uniform force of each soil strip according to the local concentrated force and using the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate the slope cable anchor support system includes: Obtain the bottom length of each soil strip, and calculate the uniform force of each soil strip according to the local concentrated force required for each soil strip and the bottom length; Obtain the preset longitudinal spacing and preset lateral spacing of the cable anchor, and calculate the anchoring force of the cable anchor by using the preset longitudinal spacing, preset lateral spacing and the uniform force of each soil strip; Design the cable anchor parameters for the unstable area according to the anchoring force of the cable anchor to generate the slope cable anchor support system.

2. The design method of the slope cable anchor support system according to claim 1, characterized in that ,Iteratively solve the point safety factor calculation model to calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold, including: Assign a corresponding initial value of the local concentrated force to each soil strip; Substitute the assigned initial value of the local concentrated force into the point safety factor calculation model to calculate the current point safety factor of the slope; Judge whether the current point safety factor of the slope reaches the preset threshold: If not, adjust the current local concentrated force of the soil strip, and repeatedly substitute the current local concentrated force into the point safety factor calculation model for iterative calculation until the current point safety factor of the slope reaches the preset threshold; Take the current local concentrated force of each soil strip when the point safety factor of the slope reaches the preset threshold as the local concentrated force required for it.

3. A design device for a slope anchor cable support system, characterized in that, Including: Obtaining module: Obtain the geological information and material parameters of the slope to be predicted and the trained point safety factor prediction model; Prediction module: Input the geological information and material parameters of the slope to be predicted into the point safety factor prediction model to obtain the predicted landslide area and its point safety factor; Judgment module: Judge the stability of the predicted landslide area according to the point safety factor, and take the predicted landslide area with the point safety factor less than the preset threshold as the unstable area; Division module: Divide the unstable area into soil strips, and based on the Janbu method with local anchoring force, calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold; Parameter design module: Determine the uniform force of each soil strip according to the local concentrated force, and use the uniform force of each soil strip to design the cable anchor parameters for the unstable area to generate a slope cable anchor support system; Wherein, the division module includes: First establishment unit: Analyze the force of any soil strip, and establish a first force balance model with the resultant force in the vertical direction being zero and a second force balance model with the resultant force in the horizontal direction being zero according to the static equilibrium condition; Second establishment unit: Based on the Coulomb strength theory, establish a third force balance model for any soil strip; Third establishment unit: Since the horizontal resultant force of all soil strips is zero, establish a point safety factor calculation model for the slope according to the first force balance model, the second force balance model, and the third force balance model; Iteration unit: Iteratively solve the point safety factor calculation model to calculate the local concentrated force required for each soil strip when the point safety factor of the slope reaches the preset threshold; Wherein, the parameter design module includes: Second acquisition unit: Acquire the bottom length of each soil strip, and calculate the uniform force of each soil strip according to the local concentrated force required for each soil strip and the bottom length; Second calculation unit: Acquire the preset longitudinal spacing and preset lateral spacing of the cable anchor, and calculate the anchoring force of the cable anchor by using the preset longitudinal spacing, preset lateral spacing, and the uniform force of each soil strip; Generation unit: Design the cable anchor parameters for the unstable area according to the anchoring force of the cable anchor to generate a slope cable anchor support system.

4. The device for designing the slope cable anchor support system according to claim 3, characterized in that, The iteration unit includes: Assignment unit: Assign an initial value of the local concentrated force to each soil strip; First calculation unit: Substitute the assigned initial value of the local concentrated force into the point safety factor calculation model to calculate the current point safety factor of the slope; Judgment unit: Judge whether the current point safety factor of the slope reaches the preset threshold: If not, adjust the current local concentrated force of the soil strip, and repeatedly substitute the current local concentrated force into the point safety factor calculation model for iterative calculation until the current point safety factor of the slope reaches the preset threshold; Selection unit: Take the current local concentrated force of each soil strip when the point safety factor of the slope reaches the preset threshold as the required local concentrated force.

5. A design device for a slope cable anchor support system, characterized in that, Includes: A memory for storing computer programs; A processor for implementing the steps of the slope cable anchor support system design method as described in any one of claims 1 to 2 when executing the computer program.

6. A readable storage medium, characterized in that: The computer program is stored on the readable storage medium, and when the computer program is executed by the processor, the steps of the slope cable anchor support system design method as described in any one of claims 1 to 2 are implemented.

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