Method and system for evaluating stress coordination of slope support structure and slope body response, and electronic device

Abstract

The present application relates to the field of slope engineering safety monitoring and evaluation, and provides a kind of force and slope body response coordination evaluation method and system of slope supporting structure, electronic equipment, method includes: obtaining the supporting structure stress data and slope body response data of slope to be evaluated;Calculate supporting structure stress increment index and slope body correction response index;Calculate the space-time matching coefficient between supporting structure stress increment index and slope body correction response index, and calculate coordination index;The coordination index is compared with preset threshold value, and the coordination evaluation result is obtained.Use to solve the defect that only monitoring supporting structure body or only monitoring slope body response in related technology, cannot judge whether supporting stress change is truly inhibited slope deformation, the scheme of the application can not only comprehensive supporting structure stress and slope body response, but also consider space-time matching coefficient, to serve the safety operation and fine management of slope supporting system.

Description

Technical Field

[0001] This invention relates to the field of slope engineering safety monitoring and evaluation technology, and in particular to a method, system, and electronic equipment for evaluating the coordination between stress and slope response of slope support structures. Background Technology

[0002] In current slope monitoring practices, monitoring of the support structure and monitoring of the slope response are usually separated. Common engineering practices involve observing separately whether the axial force of the anchor cables decreases, whether the strain of the anti-slide piles exceeds limits, or observing separately whether the surface displacement, deep displacement, crack width, and pore pressure are abnormal. However, simply knowing that the stress on the support structure has changed does not directly indicate whether that change has effectively suppressed slope deformation; similarly, simply knowing that the slope deformation has changed makes it difficult to determine whether that change is coordinated with the change in the stress on the support.

[0003] For example, under the influence of rainfall or excavation disturbance, the axial force of anchor cables may increase significantly. However, if the displacement gradient in the deep part of the slope continues to increase, it indicates that the increased stress on the support has not translated into an effective inhibitory effect. Similarly, if the internal force of the anti-slide piles increases but the slope cracks expand and the slope toe displacement continues to develop simultaneously, it also indicates that the support and the slope may be in a state of disharmony. Existing technologies generally lack a method to quantitatively evaluate the effectiveness of the support by starting from the chain of "stress changes in the support structure—slope response changes—the spatiotemporal relationship between the two".

[0004] In addition, slope monitoring is often affected by environmental and working conditions such as rainfall, water level changes, excavation unloading, and blasting construction. If these external stimuli are not isolated, the response caused by changes in working conditions may be misjudged as a change in support coordination. Summary of the Invention

[0005] This invention provides a method, system, and electronic equipment for evaluating the coordination between the stress and slope response of a slope support structure. This addresses the shortcomings of related technologies that only monitor the support structure itself or only monitor the slope response, failing to determine whether changes in the support stress truly inhibit slope deformation. The solution proposed in this application can comprehensively consider both the stress of the support structure and the slope response, as well as the spatiotemporal matching coefficient, to serve the safe operation and refined management of the slope support system.

[0006] This invention provides a method for evaluating the compatibility between the stress and slope response of a slope protection structure, comprising: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; Based on the stress data of the support structure and the slope response data, calculate the stress increment index of the support structure and the slope correction response index. Calculate the spatiotemporal matching coefficient between the incremental stress index of the support structure and the slope correction response index, and calculate the coordination index based on the incremental stress index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination index is compared with a preset threshold to obtain the coordination evaluation result.

[0007] According to the method for evaluating the compatibility between the stress and slope response of a slope support structure provided by the present invention, the step of calculating the stress increment index of the support structure and the slope correction response index based on the stress data of the support structure and the slope response data includes: Based on the stress data of the support structure and the slope response data, support influence units and corresponding slope response sensitive areas are established. Based on each evaluation window and each support influence unit, the stress increment index of the support structure and the slope correction response index are calculated. The evaluation window is established based on the working condition data of the slope to be evaluated.

[0008] According to the method for evaluating the compatibility between stress and slope response of slope support structure provided by the present invention, the spatiotemporal matching coefficient includes a time delay penalty parameter and a spatial matching degree parameter; The calculation of the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index includes: The peak moment of the stress change of the support structure is determined based on the stress increment index of the support structure, and the current turning point of the slope is determined based on the slope correction response index. The time delay penalty parameter is determined based on the time difference between the peak time and the turning point. Based on the support influence unit, the corresponding slope response sensitive area is determined; The spatial matching degree parameter is determined based on the overlap between the support influence unit and the slope response sensitive area.

[0009] According to the method for evaluating the compatibility between the stress and slope response of a slope support structure provided by the present invention, the stress increment index of the support structure includes load rate, growth rate and post-peak relaxation rate. The calculation of the stress increment index of the support structure includes: The load factor is calculated using the following formula: ; in, The force is distributed evenly within the window. For the initial force on the window, To control the force in the design; The growth rate is calculated using the following formula: ; in, To evaluate the maximum rate of force increase within the window, This is a reference value for the rate; The post-peak relaxation rate is calculated using the following formula: ; in, To evaluate the peak stress within the window, Force is applied when the window ends; The calculation of slope correction response indices includes: Establish an unsupported baseline response model based on historical samples; The baseline response value under similar working conditions is predicted using the working condition data of the slope to be evaluated. The measured response value is compared with the baseline response value to obtain the corrected slope correction response index.

[0010] According to the method for evaluating the compatibility between the stress and slope response of a slope support structure provided by the present invention, the calculation of the compatibility index based on the stress increment index of the support structure, the slope correction response index, and the spatiotemporal matching coefficient further includes: The suppression effectiveness parameters are calculated based on the stress increment index of the support structure and the slope correction response index. The coordination index is obtained by weighting the inhibition effectiveness parameter, the time delay penalty parameter, and the spatial matching degree parameter.

[0011] According to the method for evaluating the compatibility between the stress and slope response of a slope support structure provided by the present invention, the compatibility index is obtained by weighting the suppression effectiveness parameter, the time delay penalty parameter, and the spatial matching degree parameter, which conforms to the following formula: ; in, Here, E is the coordination index, M is the suppression effectiveness parameter, H is the spatial matching degree parameter, H is the time delay penalty parameter, and S is the sign consistency parameter. These parameters characterize the degree of directional consistency between the increase in stress on the support structure and the deceleration of slope deformation. , , as well as These are the weighting coefficients, and .

[0012] According to the method for evaluating the compatibility between stress and slope response of a slope support structure provided by the present invention, the step of comparing the compatibility index with a preset threshold to obtain the compatibility evaluation result includes: When the coordination index is greater than or equal to 0.75, it is determined that the stress and slope response of the slope support structure to be evaluated are highly coordinated. When the coordination index is greater than or equal to 0.55 and less than 0.75, the stress and slope response of the slope support structure to be evaluated are determined to be coordinated. When the coordination index is greater than or equal to 0.35 and less than 0.55, the stress and slope response of the slope support structure to be evaluated are determined to be weakly coordinated. When the coordination index is less than 0.35, it is determined that the stress and slope response of the slope support structure to be evaluated are out of coordination.

[0013] According to the method for evaluating the compatibility between stress and slope response of a slope support structure provided by the present invention, the step of comparing the compatibility index with a preset threshold to obtain the compatibility evaluation result further includes: An alarm will be triggered if the coordination evaluation results of several consecutive evaluation windows are all less than 0.55.

[0014] This invention also provides a system for evaluating the compatibility of stress and slope response in slope protection structures, applying a method for evaluating the compatibility of stress and slope response in slope protection structures, including: The data acquisition module is used to acquire the stress data of the support structure and the slope response data of the slope to be evaluated. The index calculation module is used to calculate the incremental index of the support structure stress and the slope correction response index based on the stress data of the support structure and the slope response data. The coordination calculation module is used to calculate the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index, and to calculate the coordination index based on the stress increment index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination evaluation module is used to compare the coordination index with a preset threshold to obtain the coordination evaluation result.

[0015] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the method for evaluating the compatibility between the stress and slope response of any of the above-described slope support structures.

[0016] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for evaluating the compatibility of stress and slope response of any of the above-described slope support structures.

[0017] The present invention also provides a computer program product, including a computer program that, when executed by a processor, implements a method for evaluating the compatibility of stress and slope response of any of the above-described slope support structures.

[0018] The method for evaluating the compatibility between stress and slope response of slope support structures provided by this invention has at least the following beneficial effects: (1) Starting from the combined relationship between the stress of the support structure and the slope response, rather than monitoring a single object in isolation, it is possible to more realistically evaluate the control effect of the support system on slope stability. (2) By introducing the unsupported baseline response model, the influence of background excitations such as rainfall, excavation, and water level can be removed, reducing misjudgment; (3) By introducing time delay penalty and spatial matching degree, it is possible to identify effective scenarios where “there is reasonable hysteresis suppression after support loading”, and also to identify uncoordinated scenarios where “force change and response decay are not in the same sensitive area”. (4) The method has good scalability and can be adapted to various engineering types such as anchored slopes, anti-slide pile slopes and pile-anchor combined support slopes. It can also be deployed as an online evaluation system. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is one of the flowcharts illustrating the method for evaluating the compatibility between stress and slope response of slope support structures provided in this embodiment of the invention. Figure 2 This is a schematic diagram of a typical layout of slope support and monitoring points provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the division of support influence units and slope response sensitive areas provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of coordination level determination provided in an embodiment of the present invention; Figure 5 This is the second flowchart illustrating the method for evaluating the compatibility between stress and slope response of slope support structures provided in this embodiment of the invention. Figure 6 This is a schematic diagram of the structure of the slope support structure stress and slope response coordination evaluation system provided in the embodiment of the present invention; Figure 7 This is a schematic diagram of the physical structure of the electronic device provided in an embodiment of the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] Figure 1 This is one of the flowcharts illustrating the method for evaluating the compatibility between stress and slope response of slope support structures provided in this embodiment of the invention.

[0023] like Figure 1 As shown in the figure, this embodiment provides a method for evaluating the compatibility between the stress and slope response of a slope support structure, including: Step 101: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; In practical applications, the stress data of the support structure may include one or more of the following: axial force of anchor bolts or anchor cables, strain or bending moment of anti-slide piles, and strain of frame beams. The slope response data may include one or more of the following: slope surface displacement, deep displacement, crack width, and pore water pressure. In addition to the stress data of the support structure and the slope response data, the working condition data of the slope to be evaluated can also be obtained, such as one or more of the following: rainfall, excavation unloading, blasting vibration, and water level changes.

[0024] Figure 2 This is a schematic diagram of a typical layout for slope support and monitoring points.

[0025] During implementation, a monitoring system can be deployed on the slope to be evaluated, such as... Figure 2 As shown, taking a high slope pile-anchor combined support project as an example, the slope is 48m high, with three rows of prestressed anchor cables laid on the slope surface and three anti-slide piles laid at the slope toe. Anchor cable force gauges are installed at the ends of the anchor cables, vibrating wire strain gauges are installed along the depth direction of the anti-slide piles, and displacement gauges are installed at the pile tops. Surface displacement monitoring points are set on the slope surface and top, deep inclinometers are installed in the middle and toe of the slope, crack gauges are installed in crack-developed areas, and pore pressure gauges are installed inside the slope. Simultaneously, rainfall, excavation conditions, and blasting time are recorded. All sensor sampling times are uniformly converted to the same time axis, with static quantities collected every 1 hour and during construction disturbance periods collected every 10 minutes.

[0026] In practical applications, after acquiring the above raw data, missing data marking, outlier removal, and time synchronization can be performed. Specifically, outlier removal can employ the three-standard-deviation method, the moving median method, or the upper and lower limit method based on engineering rules. Then, the evaluation window is divided according to the triggering events: when continuous rainfall, single-stage excavation, concentrated blasting, rapid water level changes, or tensioning and locking operations occur, the triggering time t0 is taken as the event start time, with a baseline period of 12–48 hours preceding it and a response period of 24–168 hours following it, forming an evaluation window. If multiple events occur within the window, the event with the largest energy input or load change is selected as the dominant excitation, and the remaining events are recorded as correction factors.

[0027] Step 102: Calculate the stress increment index of the support structure and the slope correction response index based on the stress data of the support structure and the slope response data. The stress increment indicators of the support structure include load factor, growth rate and post-peak relaxation rate. The calculation of the stress increment index of the support structure includes: The load factor is calculated using the following formula: ; in, The force is distributed evenly within the window. For the initial force on the window, To control the force in the design; The growth rate is calculated using the following formula: ; in, To evaluate the maximum rate of force increase within the window, This is a reference value for the rate; The post-peak relaxation rate is calculated using the following formula: ; in, To evaluate the peak stress within the window, Force is applied when the window ends; The slope correction response indices include at least: displacement rate factor V, deep shear gradient factor D, crack propagation factor W, and pore pressure residual factor P; the calculation of the slope correction response indices includes: Establish an unsupported baseline response model based on historical samples; The baseline response value under similar working conditions is predicted using the working condition data of the slope to be evaluated. The measured response value is compared with the baseline response value to obtain the corrected slope correction response index.

[0028] Figure 3This is a schematic diagram of the division of support influence units and slope response sensitive areas provided in an embodiment of the present invention.

[0029] like Figure 3 As shown, in practice, support influence units and corresponding slope response sensitive areas can be established based on the stress data of the support structure and the slope response data. Based on each evaluation window and each support influence unit, the stress increment index of the support structure and the slope correction response index are calculated. The evaluation window is established based on the working condition data of the slope to be evaluated.

[0030] Specifically, the establishment of support influence units can include: based on a single anchor cable, anchor rod, anti-slide pile, lattice beam node or a combination thereof, combined with the support spacing, embedment depth, incident direction, design influence width and spatial location of monitoring points, constructing two-dimensional or three-dimensional support influence units by superimposing influence domains; the slope response sensitive area is jointly determined by the spatial proximity, structural connection relationship and historical correlation between surface displacement points, deep inclinometer holes, crack gauges and pore pressure gauges and support influence units.

[0031] The evaluation window can be divided as follows: the start of rainfall, the start of single-stage excavation, the start of blasting operation, the start of rapid change in reservoir water level, or the start of support prestress adjustment can be used as the trigger time t0, and the evaluation window can be composed of the baseline period before the trigger time and the response period after the trigger time. When multiple working conditions overlap, the window can be divided by prioritizing the dominant excitation and retaining the secondary excitation correction factor.

[0032] Step 103: Calculate the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index, and calculate the coordination index based on the stress increment index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The spatiotemporal matching coefficient includes a time delay penalty parameter and a spatial matching degree parameter; The calculation of the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index includes: The peak moment of the stress change of the support structure is determined based on the stress increment index of the support structure, and the current turning point of the slope is determined based on the slope correction response index. The time delay penalty parameter is determined based on the time difference between the peak time and the turning point. Based on the support influence unit, the corresponding slope response sensitive area is determined; The spatial matching degree parameter is determined based on the degree of overlap between the support influence unit and the slope response sensitive area; The suppression effectiveness parameters are calculated based on the stress increment index of the support structure and the slope correction response index. The coordination index is obtained by weighting the inhibition effectiveness parameter, the time delay penalty parameter, and the spatial matching degree parameter, which conforms to the following formula: ; in, The parameters are: E (coordination index), M (spatial matching degree parameter, ranging from 0 to 1), H (time delay penalty parameter), and S (sign consistency parameter, ranging from 0 to 1). These parameters characterize the degree of directional consistency between the increase in stress on the support structure and the deceleration of slope deformation. , , as well as These are the weighting coefficients, and .

[0033] Specifically, the suppression effectiveness parameter E is determined as follows: E = 1 - Rc / Rb; where Rc is the corrected composite response residual within the evaluation window, and Rb is the baseline composite response under similar excitation conditions; The comprehensive response residual Rc is calculated according to Rc=aV+bD+cW+dP, where a, b, c, and d are weighting coefficients determined according to the project type, and a+b+c+d=1. The larger E is, the more obvious the effect of the change in support stress on the slope deformation suppression effect is. When E is less than 0, it indicates that the increase in support stress has failed to suppress the slope response.

[0034] Step 104: Compare the coordination index with a preset threshold to obtain the coordination evaluation result.

[0035] Figure 4 This is a schematic diagram of coordination level determination provided in an embodiment of the present invention.

[0036] like Figure 4 As shown, in practical applications, when the coordination index is greater than or equal to 0.75, it is determined that the stress and slope response of the slope support structure to be evaluated are highly coordinated. When the coordination index is greater than or equal to 0.55 and less than 0.75, the stress and slope response of the slope support structure to be evaluated are determined to be coordinated. When the coordination index is greater than or equal to 0.35 and less than 0.55, the stress and slope response of the slope support structure to be evaluated are determined to be weakly coordinated. When the coordination index is less than 0.35, it is determined that the stress and slope response of the slope support structure to be evaluated are out of coordination.

[0037] Furthermore, an alarm is triggered when the coordination evaluation results of several consecutive evaluation windows are all less than 0.55; or when the suppression efficacy parameter of any evaluation window is less than 0.

[0038] The method for evaluating the compatibility between the stress and slope response of slope support structures provided in this embodiment has at least the following beneficial effects: (1) Starting from the combined relationship between the stress of the support structure and the slope response, rather than monitoring a single object in isolation, it is possible to more realistically evaluate the control effect of the support system on slope stability. (2) By introducing the unsupported baseline response model, the influence of background excitations such as rainfall, excavation, and water level can be removed, reducing misjudgment; (3) By introducing time delay penalty and spatial matching degree, it is possible to identify effective scenarios where “there is reasonable hysteresis suppression after support loading”, and also to identify uncoordinated scenarios where “force change and response decay are not in the same sensitive area”. (4) The method has good scalability and can be adapted to various engineering types such as anchored slopes, anti-slide pile slopes and pile-anchor combined support slopes. It can also be deployed as an online evaluation system.

[0039] Figure 5 This is the second flowchart illustrating the method for evaluating the compatibility between stress and slope response of slope support structures provided in this embodiment of the invention.

[0040] like Figure 5 As shown below, a specific embodiment is used to illustrate the method for evaluating the compatibility between the stress and slope response of the slope support structure provided by this application, including the following steps: 1. Monitoring system deployment Taking a high slope pile-anchor combined support project as an example, the slope is 48m high, with three rows of prestressed anchor cables laid on the slope surface and three anti-slide piles laid at the slope toe. Anchor cable force gauges are installed at the ends of the anchor cables, vibrating wire strain gauges are installed along the depth direction of the anti-slide piles, and displacement gauges are installed at the pile tops. Surface displacement monitoring points are set on the slope surface and top, deep inclinometer holes are set in the middle and toe of the slope, crack gauges are installed in crack-developed areas, and pore pressure gauges are installed inside the slope. Simultaneously, rainfall, excavation conditions, and blasting time are recorded. All sensor sampling times are uniformly converted to the same time axis, with static data collected every 1 hour and data collected every 10 minutes during construction disturbance periods.

[0041] 2. Data Preprocessing and Evaluation Window Division The raw data is marked for missing measurements, outliers are removed, and time synchronization is performed. Outlier removal can be achieved using the three-standard-deviation method, the moving median method, or upper and lower limit methods based on engineering rules. Then, evaluation windows are defined based on the trigger events: when continuous rainfall, single-stage excavation, concentrated blasting, rapid water level changes, or tensioning and locking operations occur, the trigger time t0 is taken as the event start time, with a baseline period of 12–48 hours preceding it and a response period of 24–168 hours following it, forming an evaluation window. If multiple events occur within the window, the event with the largest energy input or load change is selected as the dominant excitation, and the remaining events are recorded as correction factors.

[0042] 3. Delineation of support impact units and slope response sensitive zones Each anchor cable, each anti-slide pile, and its nearby frame beam nodes constitute candidate support units. Based on the support spacing, free section length, anchorage section length, pile spacing, width of the soil wedge behind the pile, and distribution of monitoring points, the slope is divided into several support influence units U1, U2, ..., Un. For each support influence unit, surface displacement points, deep displacement stratification points, crack gauges, and pore pressure gauges within its control range are associated to form a response sensitive zone Ri. The relationship between support units and response sensitive zones can be jointly determined using the spatial nearest neighbor principle and the principle of maximizing historical correlation coefficients.

[0043] 4. Construction of Incremental Support Stress Indicators For anchor cables, the axial force time series F(t) is used; for anti-slide piles, the bending moment M(t) or shear force Q(t) is inverted based on pile strain, and equivalent force transformation is performed when necessary, combined with pile top displacement. For each evaluation window, the following indicators are calculated: (1) Load ratio ; in, The force is distributed evenly within the window. For the initial force on the window, To control the force in the design; (2) Growth rate ; in, To evaluate the maximum rate of force increase within the window, This is a reference value for the rate; (3) Post-peak relaxation rate ; in, To evaluate the peak stress within the window, Force applied when the window ends The three indicators mentioned above respectively characterize the degree of support intervention, the intensity of force increase, and the ability to maintain force.

[0044] 5. Construction of Slope Correction Response Indicators Four indicators were used to assess the slope response: displacement rate V, deep shear gradient D, crack propagation rate W, and pore pressure residual P. Displacement rate V reflects the dimensionless result of surface or deep displacement rate; deep shear gradient D reflects the degree of deformation concentration in the potential slip zone; crack propagation rate W reflects the dimensionless result of crack opening / closing rate or propagation rate; and pore pressure residual P is the dimensionless result of subtracting the baseline predicted value from the measured pore pressure value. To eliminate the influence of external factors such as rainfall, excavation, and water level, an unsupported baseline response model was first established using historical stable period samples. Accumulated rainfall, rainfall intensity, excavation depth increment, blasting unit consumption, and water level change rate were used as inputs, and displacement rate, deep displacement gradient, crack propagation rate, and pore pressure change were used as outputs to obtain the predicted baseline for each response quantity under similar excitation. Then, the measured value was subtracted from the predicted baseline value to obtain the corrected response residual, which was then dimensionlessized.

[0045] The comprehensive response residual Rc is determined by the following formula: Rc = aV + bD + cW + dP; where a, b, c, and d are weighting coefficients. For slopes dominated by deep sliding, a = 0.25, b = 0.40, c = 0.15, and d = 0.20 can be taken; for shallow tensile fracture slopes, the weight of W can be appropriately increased.

[0046] 6. Suppression effectiveness and spatiotemporal matching analysis The baseline composite response is defined as Rb, representing the typical response level under similar excitation without considering changes in support stress. The suppression effectiveness parameter is defined as E = 1 - Rc / Rb. If E is close to 1, it indicates that changes in support stress significantly suppress the slope response; if E is close to 0, it indicates a weak suppression effect; if E is less than 0, it indicates that the slope response is still greater than the baseline after the support stress increases, which is a sign of failure or incoordination.

[0047] Define Δt as the difference between the peak moment of support stress and the turning point when the slope response changes from increasing to decreasing. Determine the time delay penalty parameter H based on the relationship between Δt and the allowable hysteresis τ0, preferably H = min(Δt / τ0, 1). τ0 can be selected from 6h to 72h depending on the project type.

[0048] The spatial matching degree M is defined as the degree of overlap between the support unit with significant stress change and the slope response sensitive area with significant response reduction. It can be calculated by the overlap ratio of monitoring points, unit distance and historical correlation degree. The value of M ranges from 0 to 1.

[0049] In addition, a sign consistency parameter S is defined to characterize whether the direction of change in support stress and the direction of change in slope response are opposite and have an inhibitory relationship. When the support stress increases while the slope response decreases, S takes a higher value; when the support stress increases and the slope response also increases, S takes a lower value.

[0050] 7. Coordination Index Calculation and Classification Combining the above parameters, the coordination index is obtained: Preferably, α=0.40, β=0.20, γ=0.20, and δ=0.20. In the initial stage of the project, expert weighting can be used; after a period of operation, it can be automatically corrected based on historical valid window samples.

[0051] When CI ≥ 0.75, it is considered highly coordinated, indicating a good synergistic relationship between the change in support stress and the attenuation of slope response; when 0.55 ≤ CI < 0.75, it is considered relatively coordinated; when 0.35 ≤ CI < 0.55, it is considered weakly coordinated; and when CI < 0.35, it is considered uncoordinated. When CI is below 0.55 for three consecutive windows, or when E < 0 in any window, the system automatically issues an early warning and suggests reviewing the tension force, soil pressure behind the piles, drainage conditions, or supplementary support measures.

[0052] 8. Implementation Results Taking a continuous rainfall event as an example, the 24 hours before the event begins are considered the baseline period, and the 72 hours after the event begins are considered the response period. Within a certain support influence unit, the average axial force of the anchor cables increases from 740 kN to 892 kN. The design control force is 1200 kN, resulting in L = 0.127; the maximum growth rate is 11.4 kN / h, corresponding to G = 0.63; and the post-peak relaxation rate is R = 0.06. Simultaneously, the corrected displacement rate factor V = 0.42, deep shear gradient factor D = 0.38, crack propagation factor W = 0.27, and pore pressure residual factor P = 0.33. Weighted, Rc = 0.36, and the baseline comprehensive response Rb = 0.82, yielding E = 0.561. The peak support force occurs 8 hours before the response inflection point; taking τ0 = 24 hours, H = 0.333. Combining spatial relationships and historical correlations, M = 0.79 and S = 0.86 are obtained. The final CI = 0.40×0.561+0.20×0.79+0.20×(1-0.333)+0.20×0.86≈0.69 corresponds to a relatively coordinated level, indicating that the support system has played a significant role in suppressing the spread of the virus under this working condition. However, the risk of relaxation under subsequent continuous rainfall should still be monitored.

[0053] The method for evaluating the compatibility between stress and slope response of slope support structures provided in this embodiment can establish a quantitative relationship between changes in support stress and slope response attenuation, directly answering the engineering question of "whether the support is truly effective"; it can identify uncoordinated scenarios where the stress on the support components themselves increases but fails to effectively suppress slope deformation, providing a basis for reinforcement design and emergency response; it takes into account both time lag and spatial matching, and is suitable for long-term monitoring, construction period evaluation, and continuous early warning during operation and maintenance.

[0054] The following describes the stress-slope response coordination evaluation system for slope support structures provided by this invention. The stress-slope response coordination evaluation system for slope support structures described below can be referred to in correspondence with the stress-slope response coordination evaluation method for slope support structures described above.

[0055] Figure 7 This is a schematic diagram of the stress-slope response coordination evaluation system for slope support structures provided in this embodiment of the invention.

[0056] like Figure 6 As shown, the slope support structure stress-slope response coordination evaluation system provided in this embodiment includes: The data acquisition module 601 is used to acquire the stress data of the support structure and the slope response data of the slope to be evaluated. The index calculation module 602 is used to calculate the incremental index of the support structure stress and the slope correction response index based on the stress data of the support structure and the slope response data. The coordination calculation module 603 is used to calculate the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index, and to calculate the coordination index based on the stress increment index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination evaluation module 604 is used to compare the coordination index with a preset threshold to obtain the coordination evaluation result.

[0057] The specific implementation method of the slope support structure stress and slope response coordination evaluation system provided in this embodiment can be implemented with reference to the above embodiment, and will not be repeated here.

[0058] Figure 7 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 7 As shown, the electronic device may include: a processor 710, a communication interface 720, a memory 730, and a communication bus 740, wherein the processor 710, the communication interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 can call logical instructions in the memory 730 to execute a method for evaluating the compatibility of stress and slope response of a slope support structure. This method includes: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; Based on the stress data of the support structure and the slope response data, calculate the stress increment index of the support structure and the slope correction response index. Calculate the spatiotemporal matching coefficient between the incremental stress index of the support structure and the slope correction response index, and calculate the coordination index based on the incremental stress index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination index is compared with a preset threshold to obtain the coordination evaluation result.

[0059] Furthermore, the logical instructions in the aforementioned memory 730 can be implemented as software functional units and, when sold or used as independent products, 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 of 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 (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0060] On the other hand, the present invention also provides a computer program product, which includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer is able to execute the method for evaluating the compatibility between the stress and slope response of the slope support structure provided by the above methods. The method includes: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; Based on the stress data of the support structure and the slope response data, calculate the stress increment index of the support structure and the slope correction response index. Calculate the spatiotemporal matching coefficient between the incremental stress index of the support structure and the slope correction response index, and calculate the coordination index based on the incremental stress index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination index is compared with a preset threshold to obtain the coordination evaluation result.

[0061] In another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for evaluating the compatibility of stress and slope response of slope support structures provided by the methods described above, the method comprising: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; Based on the stress data of the support structure and the slope response data, calculate the stress increment index of the support structure and the slope correction response index. Calculate the spatiotemporal matching coefficient between the incremental stress index of the support structure and the slope correction response index, and calculate the coordination index based on the incremental stress index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination index is compared with a preset threshold to obtain the coordination evaluation result.

[0062] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0063] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of various embodiments or some parts of embodiments.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for evaluating the compatibility between the stress and slope response of a slope support structure, characterized in that, include: Obtain the stress data of the support structure and the slope response data of the slope to be evaluated; Based on the stress data of the support structure and the slope response data, calculate the stress increment index of the support structure and the slope correction response index. Calculate the spatiotemporal matching coefficient between the incremental stress index of the support structure and the slope correction response index, and calculate the coordination index based on the incremental stress index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination index is compared with a preset threshold to obtain the coordination evaluation result.

2. The method for evaluating the compatibility between stress and slope response of slope support structures according to claim 1, characterized in that, The calculation of the incremental stress index of the support structure and the slope correction response index based on the stress data of the support structure and the slope response data includes: Based on the stress data of the support structure and the slope response data, support influence units and corresponding slope response sensitive areas are established. Based on each evaluation window and each support influence unit, the stress increment index of the support structure and the slope correction response index are calculated. The evaluation window is established based on the working condition data of the slope to be evaluated.

3. The method for evaluating the compatibility between the stress and slope response of a slope support structure according to claim 2, characterized in that, The spatiotemporal matching coefficient includes a time delay penalty parameter and a spatial matching degree parameter; The calculation of the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index includes: The peak moment of the stress change of the support structure is determined based on the stress increment index of the support structure, and the current turning point of the slope is determined based on the slope correction response index. The time delay penalty parameter is determined based on the time difference between the peak time and the turning point. Based on the support influence unit, the corresponding slope response sensitive area is determined; The spatial matching degree parameter is determined based on the overlap between the support influence unit and the slope response sensitive area.

4. The method for evaluating the compatibility between the stress and slope response of a slope support structure according to claim 2, characterized in that, The stress increment indicators of the support structure include load factor, growth rate and post-peak relaxation rate. The calculation of the stress increment index of the support structure includes: The load factor is calculated using the following formula: ； in, The force is distributed evenly within the window. For the initial force on the window, To control the force applied in the design; The growth rate is calculated using the following formula: ； in, To evaluate the maximum rate of force increase within the window, This is a reference value for the rate; The post-peak relaxation rate is calculated using the following formula: ； in, To evaluate the peak stress within the window, Force is applied when the window ends; The calculation of slope correction response indices includes: Establish an unsupported baseline response model based on historical samples; The baseline response value under similar working conditions is predicted using the working condition data of the slope to be evaluated. The measured response value is compared with the baseline response value to obtain the corrected slope correction response index.

5. The method for evaluating the compatibility between stress and slope response of slope support structures according to claim 3, characterized in that, The calculation of the coordination index based on the incremental stress index of the support structure, the slope correction response index, and the spatiotemporal matching coefficient also includes: The suppression effectiveness parameters are calculated based on the stress increment index of the support structure and the slope correction response index. The coordination index is obtained by weighting the inhibition effectiveness parameter, the time delay penalty parameter, and the spatial matching degree parameter.

6. The method for evaluating the compatibility between stress and slope response of a slope support structure according to claim 5, characterized in that, The coordination index is obtained by weighting the inhibition effectiveness parameter, the time delay penalty parameter, and the spatial matching degree parameter, and conforms to the following formula: ； in, Here, E is the coordination index, M is the suppression effectiveness parameter, H is the spatial matching degree parameter, H is the time delay penalty parameter, and S is the sign consistency parameter. These parameters characterize the degree of directional consistency between the increase in stress on the support structure and the deceleration of slope deformation. , , as well as These are the weighting coefficients, and .

7. The method for evaluating the compatibility between stress and slope response of a slope support structure according to claim 2, characterized in that, The step of comparing the coordination index with a preset threshold to obtain a coordination evaluation result includes: When the coordination index is greater than or equal to 0.75, it is determined that the stress and slope response of the slope support structure to be evaluated are highly coordinated. When the coordination index is greater than or equal to 0.55 and less than 0.75, the stress and slope response of the slope support structure to be evaluated are determined to be coordinated. When the coordination index is greater than or equal to 0.35 and less than 0.55, the stress and slope response of the slope support structure to be evaluated are determined to be weakly coordinated. When the coordination index is less than 0.35, it is determined that the stress and slope response of the slope support structure to be evaluated are out of coordination.

8. The method for evaluating the compatibility between stress and slope response of a slope support structure according to claim 7, characterized in that, The step of comparing the coordination index with a preset threshold to obtain a coordination evaluation result further includes: An alarm will be triggered if the coordination evaluation results of several consecutive evaluation windows are all less than 0.

55.

9. A stress-slope response coordination evaluation system for slope protection structures, employing the stress-slope response coordination evaluation method for slope protection structures as described in any one of claims 1-8, characterized in that, include: The data acquisition module is used to acquire the stress data of the support structure and the slope response data of the slope to be evaluated. The index calculation module is used to calculate the incremental index of the support structure stress and the slope correction response index based on the stress data of the support structure and the slope response data. The coordination calculation module is used to calculate the spatiotemporal matching coefficient between the stress increment index of the support structure and the slope correction response index, and to calculate the coordination index based on the stress increment index of the support structure, the slope correction response index and the spatiotemporal matching coefficient. The coordination evaluation module is used to compare the coordination index with a preset threshold to obtain the coordination evaluation result.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method for evaluating the compatibility between stress and slope response of the slope support structure as described in any one of claims 1-8.

Images