A slope deformation testing method based on microwave vibration measurement

Abstract

The present invention relates to the technical field of deformation monitoring, and in particular to a slope deformation testing method based on microwave vibration measurement, comprising: uploading slope structural parameters, constructing a three-dimensional slope model based on the slope structural parameters, and capturing symmetrical microwave vibration measurement points on the three-dimensional slope model; when capturing the symmetrical microwave vibration measurement points on the three-dimensional slope model, the following procedures are followed: using the center line of a bridge pavement supported by the slope as a segmentation position, symmetrically segmenting the three-dimensional slope model to obtain two sub-slope three-dimensional models, using any one of the three-dimensional slope sub-models as a microwave vibration measurement point capture object, and executing a capture operation; the present invention designs microwave vibration measurement positions in combination with the structural characteristics of the slope by constructing the three-dimensional slope model, so that in the microwave vibration measurement stage, symmetrical microwave vibration measurement is performed at a position that can better represent the slope deformation to collect microwave signals, and the slope deformation risk is further analyzed and determined based on the collected microwave signals.

Description

Technical Field

[0001] The present invention relates to the technical field of deformation monitoring, and in particular to a slope deformation testing method based on microwave vibration measurement. Background Art

[0002] Bridge slope deformation refers to changes in the shape and position of the slopes surrounding a bridge. Influenced by geological conditions, water erosion, earthquakes, and human engineering activities, the soil or rock mass on the slopes can shift, settle, or crack. Minor deformation can affect bridge durability, while severe deformation can lead to slope instability and damage to the bridge structure, threatening traffic safety. Timely monitoring, early warning, and reinforcement measures are essential.

[0003] The invention patent with application number 202410954578.4 discloses a slope deformation monitoring method, which is applied to a slope deformation monitoring system. The slope deformation monitoring system includes: a data acquisition module, a data processing module and a modeling monitoring module; the method includes: the data acquisition module acquires image data of different orientations on the slope surface and sensor data inside the slope, and sends the image data and the sensor data to the data processing module, the sensor data includes: multi-point displacement meter data and piezometer data; the data processing module obtains fused data through data fusion processing based on the image data and the sensor data, and the fused data is sent to the data processing module. The fused data is sent to the modeling and monitoring module; wherein the fused data is used to characterize the data association relationship between the inside and outside of the slope; the modeling and monitoring module monitors the slope numerical model according to the fused data, the geological information of the slope, the sensor burial information and the pre-built slope numerical model, and determines the deformation information of the slope; the slope deformation monitoring system also includes: an early warning module and an information feedback module; after monitoring the slope numerical model and determining the deformation information of the slope, the modeling and monitoring module sends the deformation information of the slope to the early warning module, and the early warning module determines whether to output the early warning information according to the deformation information of the slope and a preset early warning threshold.

[0004] The application aims to solve the problem that "traditional slope monitoring technologies mainly include geological radar detection, surface displacement monitoring, groundwater level monitoring, borehole inclinometer measurement and other measurement methods. Although they can reflect the internal stress changes and deformation of the slope to a certain extent, there are some limitations in the implementation process. For example: in direct monitoring methods that rely on physical sensors, physical sensors are easily affected by natural environmental factors such as temperature, humidity and weathering during long-term operation, resulting in large fluctuations in data accuracy. Moreover, the layout of monitoring points inside the slope is limited by geological conditions and engineering requirements, and cannot cover the entire slope, and there may be monitoring blind spots."

[0005] However, in bridge and highway scenarios, the current slope deformation monitoring work has not yet comprehensively adopted microwave vibrometer technology to realize the testing and monitoring of slope deformation. To fill this technical gap, we proposed a slope deformation testing method based on microwave vibrometer. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a slope deformation testing method based on microwave vibration measurement, which solves the technical problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A slope deformation testing method based on microwave vibration measurement, comprising:

[0009] Upload the slope structural parameters, build a three-dimensional slope model based on the slope structural parameters, and capture symmetrical microwave vibration measurement points on the three-dimensional slope model; design a microwave vibration measurement period, obtain the microwave vibration measurement points captured on the three-dimensional slope model, and use the microwave vibration measurement equipment to transmit microwave signals to the slope based on the microwave vibration measurement period, receive the slope reflection signal in real time, and synchronously convert the slope reflection signal into an electrical signal; mark the source timestamp and source microwave vibration point of the electrical signal, and continuously record the electrical signal, analyze the symmetry of the electrical signals belonging to the symmetrical microwave vibration points at the same timestamp, and evaluate the slope deformation index based on the symmetry analysis results; set the slope deformation risk determination interval, obtain the slope deformation index evaluation result, and compare the application evaluation result with the set slope deformation risk determination interval to determine whether the evaluation result is within the slope deformation risk determination interval; if the determination result is no, end; if the determination result is yes, sniff the source of the slope deformation risk.

[0010] Furthermore, after the three-dimensional slope model is constructed, the coordinates of any point on the actual slope surface are synchronously selected and measured, the coordinates are further mapped to the position of the corresponding point in the three-dimensional slope model, the coordinates of the corresponding point in the three-dimensional slope model construction space are replaced, and the coordinate scaling ratio is calculated using the original coordinates of the corresponding point in the three-dimensional slope model construction space and the replaced coordinates. The original coordinates of all points in the three-dimensional slope model in the three-dimensional slope model construction space are further iterated based on the coordinate scaling ratio, so that the coordinates of any point on the three-dimensional slope model are consistent with the actual coordinates of the corresponding point on the slope.

[0011] The selected and measured actual slope surface coordinates are customized by the user end. When the user end selects coordinates on the actual slope surface, the center point of the area where the slope is located in the actual slope top view plane is preferentially selected to perform the coordinate measurement operation.

[0012] Furthermore, when capturing symmetrical microwave vibration measurement points on the 3D slope model, the following is obeyed:

[0013] The slope 3D model is symmetrically segmented using the centerline of the bridge pavement supported by the slope as the segmentation position to obtain two sub-slope 3D models. Any of the sub-slope 3D models is used as the microwave vibration measurement point capture object to perform the capture operation;

[0014] All corner points outside the split surface on the slope sub-3D model are used as microwave vibration measurement points;

[0015] Deploy a microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model, and use all grid points within the top surface of the slope sub-3D model on the microwave vibration measurement point positioning grid as microwave vibration measurement points;

[0016] Traverse and clean the microwave vibration measurement points determined twice, and discard the repeated microwave vibration measurement points;

[0017] Among them, after the microwave vibration measurement points are determined on one slope sub-3D model, microwave vibration measurement points symmetrical to the determined microwave vibration measurement points are determined on another slope sub-3D model. All microwave vibration measurement points on the two slope sub-3D models are the results of symmetrical capture of the microwave vibration measurement points.

[0018] Furthermore, after the microwave vibration measurement point positioning grid is deployed on the top surface of the slope sub-3D model, by rotating and translating the microwave vibration measurement point positioning grid, when the number of grid points in the microwave vibration measurement point positioning grid that fall within the range of the top surface of the slope sub-3D model is the least, all grid points that fall within the range of the top surface of the slope sub-3D model are selected;

[0019] When deploying the microwave vibration measurement point positioning grid, the grid line spacing of the microwave vibration measurement point positioning grid is set:

[0020] ;

[0021] Where: The grid line spacing of the microwave vibration measurement point positioning grid; is the spacing base; is the slope thickness; is the top area of the slope; is the slope slope; The excavation space volume of the slope base; Volume of soil excavated for slope base; is the weight; is the total number of historical accidents on the bridges to which the slope belongs; The total number of accidents involving collisions with the slope or the main body of the bridge in the history of the bridge to which the slope belongs; is the normalization factor;

[0022] Among them, the spacing base Customized by the user. Used to represent the loose coefficient of slope base soil, the weight value range is (0, 1), the normalization factor For control The value of within the range.

[0023] Furthermore, the design logic of the microwave vibration measurement period obeys:

[0024] Create a cloud database to record the time and location of historical accidents on slope-supported bridge pavement;

[0025] The user defines a microwave vibration measurement cycle interval, and the microwave vibration measurement device periodically performs microwave vibration measurement operations based on the median value of the microwave vibration measurement cycle interval;

[0026] When a new accident event and location is recorded in the cloud database, the original microwave vibration measurement cycle is continuously reduced to the shortest microwave vibration measurement cycle based on the specified ratio;

[0027] After the application of the microwave vibration measurement cycle reaches the shortest microwave vibration measurement cycle, it is restored to the median of the microwave vibration measurement cycle interval. After further continuously increasing to the longest microwave vibration measurement cycle based on the specified ratio, it is restored to the median of the microwave vibration measurement cycle interval. And so on, the microwave vibration measurement cycle in the microwave vibration measurement cycle interval is continuously applied to perform the microwave vibration measurement operation.

[0028] Furthermore, the microwave vibration measurement period is changed using a specified ratio that complies with:

[0029] ;

[0030] Where: is the ratio used when the microwave vibration period changes; 、 The mass and speed of the accident vehicle; 、 The maximum safety mass and maximum speed of the accident vehicle; Score the collision location; The service life of the slope-supported bridge; Establishing a service life for slope-supported bridges; is a constant; is the weight;

[0031] Among them, the collision location score The value is in the range of 0~1. The closer the collision position is to the slope, the larger the value is. Conversely, the smaller the value is. The constant It is a positive integer in the range of 1 to 10. The value is defined by the user. The constant The default value is 10, weight are all positive numbers and their sum is 1, weight The value is defined by the user and is subject to When the microwave vibration period changes, it obeys , represents the median value of the microwave vibration period interval, The number of times microwave vibration measurement is performed after a new accident event and location is recorded in the cloud database.

[0032] Furthermore, the symmetry analysis logic of the electrical signals of the symmetrical microwave vibration measurement points at the same time stamp is expressed as:

[0033] ;

[0034] Where: is the symmetry of the electrical signals exhibited by the jth group of symmetrical microwave vibration measurement points; is the number of sampling points in the time interval corresponding to the electrical signal graph; 、 The electrical signal A at discrete time points The signal amplitude at the discrete time point The signal amplitude at ; The result of symmetrically mapping the electrical signal B relative to the electrical signal A on the time axis;

[0035] Based on the above formula, we can further apply all symmetrical microwave vibration measurement points to analyze the symmetry of the electrical signal:

[0036] ;

[0037] Where: is the symmetry of the electrical signal; is the total amount of symmetrical microwave vibration measurement points; To configure weights;

[0038] Among them, the symmetry of the electrical signal The larger the value, the better the symmetry of the electrical signal, and vice versa. , and obeys the configuration weight product object. The closer the microwave vibration measurement point is to the slope, the larger the value is, and vice versa.

[0039] Furthermore, the slope deformation risk determination interval is user-defined;

[0040] The operation of determining whether the assessment result is within the slope deformation risk determination interval is continuously performed according to the operation of the microwave vibration measuring device;

[0041] The evaluation logic of the slope deformation index is expressed as:

[0042] ;

[0043] Where: is the slope deformation index; is the symmetry of the electrical signal; is a constant;

[0044] Among them, the slope deformation index The smaller it is, the lighter the slope deformation problem is. On the contrary, the more serious the slope deformation problem is. >1, used for control Avoid values that are too large or too small.

[0045] Furthermore, the sniffing logic of the slope deformation risk source is expressed as:

[0046] Obtain the symmetry of the electrical signals displayed by all symmetrical microwave vibration measurement points, denoted as ;

[0047] Will Substitute each item in The calculation formula is used to iterate , then calculate The calculation result is recorded as , further based on the slope deformation risk determination interval and Compare the items in The target of capturing the target that does not meet the slope deformation risk determination interval is captured;

[0048] Capture the sniffing result of one of the symmetrical microwave vibration measurement points to which the target belongs, that is, the source of slope deformation risk.

[0049] Furthermore, the operation of setting microwave vibration measurement points on the three-dimensional slope model is iterated based on a user-defined cycle.

[0050] Compared with the known public technology, the technical solution provided by the present invention has the following beneficial effects:

[0051] The present invention provides a slope deformation testing method based on microwave vibrometer. During the execution of the method, a three-dimensional model of the slope is constructed and the microwave vibrometer position is designed in combination with the structural characteristics of the slope. In the microwave vibrometer stage, symmetrical microwave vibrometers are performed at positions that can better represent the slope deformation to collect microwave signals. The slope deformation risk is further analyzed and determined based on the collected microwave signals. At the same time, when it is determined that there is a deformation risk of the slope, the deformation source point can be referenced and located based on the microwave vibrometer position on the slope, thereby assisting bridge slope safety management users in monitoring and managing bridge slope deformation more quickly, accurately, in real time and effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0053] Figure 1 The figure is a flow chart of a slope deformation testing method based on microwave vibration measurement;

[0054] Figure 2 This is a schematic diagram of the state of deploying a microwave vibration measurement point positioning grid on the top surface of the slope three-dimensional model in the present invention. DETAILED DESCRIPTION

[0055] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] The present invention will be further described below with reference to the embodiments.

[0057] Example 1:

[0058] A slope deformation testing method based on microwave vibration measurement in this embodiment is as follows: Figure 1 Shown, including:

[0059] Upload the slope structural parameters, build a three-dimensional slope model based on the slope structural parameters, and capture symmetrical microwave vibration measurement points on the three-dimensional slope model;

[0060] When capturing symmetrical microwave vibration measurement points on the slope 3D model, the following must be followed:

[0061] The slope 3D model is symmetrically segmented using the centerline of the bridge pavement supported by the slope as the segmentation position to obtain two sub-slope 3D models. Any of the sub-slope 3D models is used as the microwave vibration measurement point capture object to perform the capture operation;

[0062] All corner points outside the split surface on the slope sub-3D model are used as microwave vibration measurement points;

[0063] Deploy a microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model, and use all grid points within the top surface of the slope sub-3D model on the microwave vibration measurement point positioning grid as microwave vibration measurement points;

[0064] Traverse and clean the microwave vibration measurement points determined twice, and discard the repeated microwave vibration measurement points;

[0065] After a microwave vibration measurement point is determined on one slope sub-3D model, a microwave vibration measurement point symmetrical to the determined microwave vibration measurement point is determined on another slope sub-3D model. All microwave vibration measurement points on the two slope sub-3D models are the result of symmetrical capture of the microwave vibration measurement points.

[0066] After deploying a microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model, by rotating and translating the microwave vibration measurement point positioning grid, all grid points within the top surface of the slope sub-3D model are selected when the number of grid points within the microwave vibration measurement point positioning grid that fall within the top surface of the slope sub-3D model is minimized.

[0067] When deploying the microwave vibration measurement point positioning grid, set the grid line spacing of the microwave vibration measurement point positioning grid:

[0068] ;

[0069] Where: The grid line spacing of the microwave vibration measurement point positioning grid; is the spacing base; is the slope thickness; is the top area of the slope; is the slope slope; The excavation space volume of the slope base; Volume of soil excavated for slope base; is the weight; is the total number of historical accidents on the bridges to which the slope belongs; The total number of accidents involving collisions with the slope or the main body of the bridge in the history of the bridge to which the slope belongs; is the normalization factor;

[0070] Among them, the spacing base Customized by the user. Used to represent the loose coefficient of slope base soil, the weight value range is (0, 1), the normalization factor For control The value of within the scope;

[0071] The grid line spacing of the microwave vibration measurement point positioning grid is calculated by the above logic formula, thereby further limiting the capture logic of the microwave vibration measurement point;

[0072] Design a microwave vibration measurement cycle, obtain microwave vibration measurement points captured on the three-dimensional slope model, use microwave vibration measurement equipment to transmit microwave signals to the slope based on the microwave vibration measurement cycle, receive slope reflection signals in real time, and synchronously convert slope reflection signals into electrical signals;

[0073] The design logic of the microwave vibration measurement cycle follows:

[0074] Create a cloud database to record the time and location of historical accidents on slope-supported bridge pavement;

[0075] The user defines a microwave vibration measurement cycle interval, and the microwave vibration measurement device periodically performs microwave vibration measurement operations based on the median value of the microwave vibration measurement cycle interval;

[0076] When a new accident event and location is recorded in the cloud database, the original microwave vibration measurement cycle is continuously reduced to the shortest microwave vibration measurement cycle based on the specified ratio;

[0077] After the microwave vibration measurement cycle reaches the shortest microwave vibration measurement cycle, it is restored to the median of the microwave vibration measurement cycle interval. After it continuously increases to the longest microwave vibration measurement cycle based on a specified ratio, it is restored to the median of the microwave vibration measurement cycle interval. In this way, the microwave vibration measurement operation is performed by continuously applying the microwave vibration measurement cycles in the microwave vibration measurement cycle interval.

[0078] The microwave vibration period is changed using the specified ratio obeying:

[0079] ;

[0080] Where: is the ratio used when the microwave vibration period changes; 、 The mass and speed of the accident vehicle; 、 The maximum safety mass and maximum speed of the accident vehicle; Score the collision location; The service life of the slope-supported bridge; Establishing a service life for slope-supported bridges; is a constant; is the weight;

[0081] Among them, the collision location score The value is in the range of 0~1. The closer the collision position is to the slope, the larger the value is. Conversely, the smaller the value is. The constant It is a positive integer in the range of 1 to 10. The value is defined by the user. The constant The default value is 10, weight are all positive numbers and their sum is 1, weight The value is defined by the user and is subject to , when the microwave vibration period changes, it obeys , represents the median value of the microwave vibration period interval, The number of times microwave vibration measurement is performed after a new accident event and location is recorded in the cloud database;

[0082] It should be noted that the above formula considers the value of K from three aspects, through Weakened the formula with The impact of the two multiplied parameters (service life of slope-supported bridges and prescribed service life of slope-supported bridges) on the overall calculation results of the formula;

[0083] The ratio used when the microwave vibration measurement period is changed is calculated by the above logic formula, which provides specified change logic support for the change of the microwave vibration measurement period in the method of this embodiment.

[0084] The electrical signal is timestamped and its source microwave vibration measurement point is marked. The electrical signal is continuously recorded, and the symmetry of the electrical signals belonging to the symmetrical microwave vibration measurement points at the same timestamp is analyzed. The slope deformation index is evaluated based on the symmetry analysis results.

[0085] The symmetry analysis logic of the electrical signals at the symmetrical microwave vibration measurement points at the same time stamp is expressed as:

[0086] ;

[0087] Where: is the symmetry of the electrical signals exhibited by the jth group of symmetrical microwave vibration measurement points; is the number of sampling points in the time interval corresponding to the electrical signal graph; 、 The electrical signal A at discrete time points The signal amplitude at the discrete time point The signal amplitude at ; The result of symmetrically mapping the electrical signal B relative to the electrical signal A on the time axis;

[0088] Based on the above formula, we can further apply all symmetrical microwave vibration measurement points to analyze the symmetry of the electrical signal:

[0089] ;

[0090] Where: is the symmetry of the electrical signal; is the total amount of symmetrical microwave vibration measurement points; To configure weights;

[0091] Among them, the symmetry of the electrical signal The larger the value, the better the symmetry of the electrical signal, and vice versa. , and obeys the configuration weight product object. The closer the microwave vibration measurement point is to the slope, the larger the value is, and vice versa.

[0092] Set a slope deformation risk determination interval, obtain a slope deformation index assessment result, compare the assessment result with the set slope deformation risk determination interval, and determine whether the assessment result is within the slope deformation risk determination interval;

[0093] If the result is no, end;

[0094] If the judgment result is yes, the source of slope deformation risk will be investigated;

[0095] The slope deformation risk determination interval is user-defined;

[0096] The operation of determining whether the assessment result is within the slope deformation risk determination range is continuously performed according to the operation of the microwave vibration measuring equipment;

[0097] The evaluation logic of the slope deformation index is expressed as:

[0098] ;

[0099] Where: is the slope deformation index; is the symmetry of the electrical signal; is a constant;

[0100] Among them, the slope deformation index The smaller it is, the lighter the slope deformation problem is. On the contrary, the more serious the slope deformation problem is. >1, used for control Avoid values that are too large or too small;

[0101] The sniffing logic of the slope deformation risk source is expressed as:

[0102] Obtain the symmetry of the electrical signals displayed by all symmetrical microwave vibration measurement points, denoted as ;

[0103] Will Substitute each item in The calculation formula is used to iterate , then calculate The calculation result is recorded as , further based on the slope deformation risk determination interval and Compare the items in The target of capturing the target that does not meet the slope deformation risk determination interval is captured;

[0104] The slope deformation index is calculated by the above logical formula, thereby providing support for the final analysis and judgment of the slope deformation risk by the method in this embodiment.

[0105] Capture the sniffing result of one of the symmetrical microwave vibration measurement points to which the target belongs, that is, the source of slope deformation risk.

[0106] In this embodiment, by executing the method described in the above embodiment, microwave vibration measurement technology is used to perform deformation testing and monitoring of bridge slopes, thereby assisting bridge slope management users in more quickly monitoring the deformation status of bridge slopes. Based on this, bridge slope safety management and maintenance can be implemented to ensure the functionality and safety of the bridge where the slope is located.

[0107] See also Figure 2 As shown, the arrows in the figure indicate the specific operation status of deploying the microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model;

[0108] Example 2:

[0109] In terms of specific implementation, based on Example 1, this example refers to Figure 1 The slope deformation testing method based on microwave vibration measurement in Example 1 is further described in detail:

[0110] After the three-dimensional slope model is constructed, the coordinates of any point on the actual slope surface are simultaneously selected and measured, and the coordinates are further mapped to the corresponding point position in the three-dimensional slope model, and the coordinates of the corresponding point in the three-dimensional slope model construction space are replaced. The coordinate scaling ratio is then calculated using the original coordinates of the corresponding point in the three-dimensional slope model construction space and the replaced coordinates. The original coordinates of all points in the three-dimensional slope model in the three-dimensional slope model construction space are further iterated based on the coordinate scaling ratio, so that the coordinates of any point on the three-dimensional slope model are consistent with the actual coordinates of the corresponding point on the slope.

[0111] The selected and measured actual slope surface coordinates are customized by the user end. When the user end selects coordinates on the actual slope surface, the center point of the area where the slope is located in the actual slope top view plane is preferentially selected to perform the coordinate measurement operation.

[0112] The above configuration provides further step execution support for the execution of the method in the above embodiment 1, and further defines the logic and process of converting the coordinate axis system of the three-dimensional slope model.

[0113] like Figure 1 As shown in FIG, the operation of setting microwave vibration measurement points on the slope 3D model is iterated based on a user-defined cycle.

[0114] Through the above settings, further continuous execution logic is provided for the execution of the steps of the method in the above embodiment 1.

[0115] In summary, during the execution of the method in the above embodiment, a three-dimensional model of the slope is constructed, and the microwave vibration measurement position is designed in combination with the structural characteristics of the slope, so that the microwave vibration measurement stage performs symmetrical microwave vibration measurement and collects microwave signals at a position that can better reflect the slope deformation. The slope deformation risk is further analyzed and determined in combination with the collected microwave signals. At the same time, when it is determined that there is a deformation risk of the slope, the deformation source point can be referenced and located based on the microwave vibration measurement position on the slope, thereby assisting bridge slope safety management users to monitor and manage bridge slope deformation more quickly, accurately, in real time and effectively.

[0116] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A slope deformation testing method based on microwave vibration measurement, characterized in that: include: Upload the slope structural parameters, build a three-dimensional slope model based on the slope structural parameters, and capture symmetrical microwave vibration measurement points on the three-dimensional slope model; Design a microwave vibration measurement cycle, obtain microwave vibration measurement points captured on the three-dimensional slope model, use microwave vibration measurement equipment to transmit microwave signals to the slope based on the microwave vibration measurement cycle, receive slope reflection signals in real time, and synchronously convert slope reflection signals into electrical signals; The electrical signal is timestamped and its source microwave vibration measurement point is marked. The electrical signal is continuously recorded, and the symmetry of the electrical signals belonging to the symmetrical microwave vibration measurement points at the same timestamp is analyzed. The slope deformation index is evaluated based on the symmetry analysis results. Set a slope deformation risk determination interval, obtain a slope deformation index assessment result, compare the assessment result with the set slope deformation risk determination interval, and determine whether the assessment result is within the slope deformation risk determination interval; If the result is no, end; If the judgment result is yes, the source of slope deformation risk will be investigated; The design logic of the microwave vibration measurement cycle follows: Create a cloud database to record the time and location of historical accidents on slope-supported bridge pavement; The user defines a microwave vibration measurement cycle interval, and the microwave vibration measurement device periodically performs microwave vibration measurement operations based on the median value of the microwave vibration measurement cycle interval; When a new accident event and location is recorded in the cloud database, the original microwave vibration measurement cycle is continuously reduced to the shortest microwave vibration measurement cycle based on a specified ratio; After the microwave vibration measurement cycle reaches the shortest microwave vibration measurement cycle, it is restored to the median of the microwave vibration measurement cycle interval. After it continuously increases to the longest microwave vibration measurement cycle based on a specified ratio, it is restored to the median of the microwave vibration measurement cycle interval. In this way, the microwave vibration measurement operation is performed by continuously applying the microwave vibration measurement cycles in the microwave vibration measurement cycle interval. The symmetry analysis logic of the electrical signals belonging to the symmetrical microwave vibration measurement points at the same time stamp is expressed as: Where: C j is the symmetry of the electrical signal displayed by the jth group of symmetrical microwave vibration measurement points; n is the number of sampling points in the corresponding time interval of the electrical signal graph; A(t i ), B(t i ) is the electrical signal graph A at discrete time point t i The signal amplitude at the discrete time point t i The signal amplitude at ; The result of symmetrically mapping the electrical signal B relative to the electrical signal A on the time axis; Based on the above formula, all symmetrical microwave vibration measurement points are used to analyze the symmetry of the electrical signal: Where: C is the symmetry of the electrical signal; m is the total number of symmetrical microwave vibration measurement points; ε j is the configuration weight; the larger the electric signal symmetry C value is, the better the electric signal symmetry is; conversely, the worse the electric signal symmetry is. And it is subject to the configuration weight product object. The closer the microwave vibration measurement point is to the slope, the larger the value is, and vice versa. The slope deformation risk determination interval is user-defined; The operation of determining whether the evaluation result is within the slope deformation risk determination interval is continuously performed according to the operation of the microwave vibration measurement equipment; the evaluation logic of the slope deformation index is expressed as: θ = (1-C) × α; Where θ is the slope deformation index; C is the symmetry of the electrical signal; and α is a constant. A smaller slope deformation index θ indicates a less severe slope deformation problem, whereas a smaller slope deformation index θ indicates a more severe slope deformation problem. The constant α is greater than 1 and is used to control the value of 1-C to avoid it being too large or too small.

2. The slope deformation testing method based on microwave vibration measurement according to claim 1 is characterized in that: After the three-dimensional slope model is constructed, the coordinates of any point on the actual slope surface are simultaneously selected and measured, the coordinates are further mapped to the position of the corresponding point in the three-dimensional slope model, the coordinates of the corresponding point in the three-dimensional slope model construction space are replaced, and a coordinate scaling ratio is calculated using the original coordinates of the corresponding point in the three-dimensional slope model construction space and the replaced coordinates. The original coordinates of all points in the three-dimensional slope model in the three-dimensional slope model construction space are further iterated based on the coordinate scaling ratio, so that the coordinates of any point on the three-dimensional slope model are consistent with the actual coordinates of the corresponding point on the slope; The selected and measured actual slope surface coordinates are customized by the user end. When the user end selects coordinates on the actual slope surface, the center point of the area where the slope is located in the actual slope top view plane is preferentially selected to perform the coordinate measurement operation.

3. The slope deformation testing method based on microwave vibration measurement according to claim 1 is characterized in that: When capturing symmetrical microwave vibration measurement points on the slope 3D model, the following must be followed: The slope 3D model is symmetrically segmented using the centerline of the bridge pavement supported by the slope as the segmentation position to obtain two sub-slope 3D models. Any of the sub-slope 3D models is used as the microwave vibration measurement point capture object to perform the capture operation; All corner points outside the split surface on the slope sub-3D model are used as microwave vibration measurement points; Deploy a microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model, and use all grid points within the top surface of the slope sub-3D model on the microwave vibration measurement point positioning grid as microwave vibration measurement points; Traverse and clean the microwave vibration measurement points determined twice, and discard the repeated microwave vibration measurement points; Among them, after the microwave vibration measurement points are determined on one slope sub-3D model, microwave vibration measurement points symmetrical to the determined microwave vibration measurement points are determined on another slope sub-3D model. All microwave vibration measurement points on the two slope sub-3D models are the results of symmetrical capture of the microwave vibration measurement points.

4. The slope deformation testing method based on microwave vibration measurement according to claim 3 is characterized in that: After deploying the microwave vibration measurement point positioning grid on the top surface of the slope sub-3D model, by rotating and translating the microwave vibration measurement point positioning grid, when the number of grid points in the microwave vibration measurement point positioning grid that fall within the range of the top surface of the slope sub-3D model is the least, all grid points that fall within the range of the top surface of the slope sub-3D model are selected; When deploying the microwave vibration measurement point positioning grid, the grid line spacing of the microwave vibration measurement point positioning grid is set: Where: d is the grid line spacing of the microwave vibration measurement point positioning grid; d0 is the spacing base; w is the slope thickness; S is the top area of the slope; κ is the slope slope; v before is the excavation volume of the slope base; v next is the volume of soil excavated from the slope base; α is the weight; g all is the total number of historical accidents on the bridges to which the slope belongs; g near The total number of accidents involving collisions with the slope or the main body of the bridge in the history of the bridge to which the slope belongs; γ is the normalization factor; Among them, the spacing base d0 is customized by the user, v before / v next It is used to represent the loose coefficient of the slope base soil. The weight value range is (0, 1). The normalization factor γ is used to control The value of is in the range [1,2).

5. The slope deformation testing method based on microwave vibration measurement according to claim 1 is characterized in that: The microwave vibration period is changed using the specified ratio that follows: Where: K is the ratio of the microwave vibration measurement period used when it changes; m and v are the mass and speed of the accident vehicle; M max 、V max is the maximum safety mass and speed limit of the accident vehicle; is the score of the collision position; N now is the service life of the slope-supported bridge; N max The service life of the slope-supported bridge is specified; λ is a constant; ω1, ω2, and ω3 are weights; Among them, the collision position score L is in the range of 0 to 1. The closer the collision position is to the slope, the larger the value is, and vice versa. The constant λ is a positive integer in the range of 1 to 10 and its value is customized by the user. The default value of the constant λ is 10. The weights ω1, ω2, and ω3 are all positive numbers and their sum is 1. The weights ω1, ω2, and ω3 are customized by the user and obey ω1>ω3<ω2. When the microwave vibration measurement period changes, it obeys T±x×K, where T represents the median of the microwave vibration measurement period interval, and x is the number of times microwave vibration measurement is performed after a new record of the accident event and location appears in the cloud database.

6. The slope deformation testing method based on microwave vibration measurement according to claim 1 is characterized in that: The sniffing logic of the slope deformation risk source is expressed as: Obtain the symmetry of the electrical signals displayed by all symmetrical microwave vibration measurement points, denoted as C j 、C j+1 、C j+2 ,...; C j 、C j+1 、C j+2 Each term in , ... is substituted into the calculation formula of θ to iterate C, and the result of calculating θ is recorded as θ j ,θ j+1 ,θ j+2 , ..., further based on the slope deformation risk determination interval and θ j ,θ j+1 ,θ j+2 , ..., and compare them. j ,θ j+1 ,θ j+2 , ...capture the target that does not meet the slope deformation risk judgment interval; capture the sniffing result of one of the symmetrical microwave vibration measurement points to which the target belongs, that is, the source of the slope deformation risk.

7. The slope deformation testing method based on microwave vibration measurement according to claim 1 is characterized in that: The operation of setting microwave vibration measurement points on the three-dimensional slope model is iterated based on a user-defined cycle.

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