CN117196319B - Power grid risk identification analysis method, system and storage medium - Google Patents
Power grid risk identification analysis method, system and storage medium Download PDFInfo
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- 238000004458 analytical method Methods 0.000 title claims abstract description 66
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Abstract
The invention relates to the technical field of power grid risk identification, and relates to a power grid risk identification analysis method, a system and a storage medium. According to the invention, during a heavy rain period, the safety index of the underground cable channel of the target area corresponding to the ground environment is monitored in real time, the risk identification capacity and the safety assessment accuracy are improved, so that whether the current ground abnormal environment condition needs further risk assessment or not is effectively judged, if so, on one hand, the rainwater infiltration risk of the underground cable channel of the target area is comprehensively analyzed from the comprehensive sealing performance index and the drainage performance index, the comprehensive rainwater infiltration risk assessment is realized, on the other hand, the upper soil layer pressure coefficient, the lateral soil layer extrusion coefficient and the lower soil layer erosion coefficient are combined, the geological collapse risk of the underground cable channel of the target area is comprehensively assessed, the relevant early warning is timely carried out, and the safe operation of the cable system is furthest protected.
Description
Technical Field
The invention relates to the technical field of power grid risk identification, and relates to a power grid risk identification analysis method, a system and a storage medium.
Background
With the acceleration of the urban progress and the popularization and application of information communication technology, a large number of underground cables need to be laid at all corners of the city so as to provide services for life, work and entertainment of people and protect the cables from the interference and damage of external environment, and underground cable channels are also built.
Although the construction of underground cable channels is more advanced with the development of technology, there are still some risks that may affect the normal operation and safety of underground cables, especially in extreme weather conditions such as heavy rain. For example, during a heavy rain event, due to a rapid increase in rainfall in a short period of time, the drainage system on the ground may not be able to drain a large amount of water in time, resulting in serious water accumulation on the ground. At this time, rainwater may infiltrate into the ground through cracks or other paths on the ground, increasing the risk of infiltration of rainwater to the underground cable channel, and further possibly causing short circuit or overheating of the cable, thereby causing potential safety hazards.
In addition, subsurface cable trench geological collapse is also a potential risk. The heavy rain may cause the ground water level to rise and the stress of the soil layer to increase, resulting in liquefaction of the geological soft layer, soil loss or formation collapse, and further causing deformation, displacement or even collapse of the underground cable channel. Therefore, risk identification analysis for underground cable channels during heavy rain is necessary.
The prior art can meet the current requirements to a certain extent for risk identification analysis of underground cable channels during heavy rain, but has certain defects, which are specifically embodied in the following several layers: 1. the prior art has a plurality of defects in the aspect of detailed analysis of the abnormal condition of the ground environment corresponding to the underground cable channel, and the precondition that rainwater penetration and geological collapse occur in the underground cable channel needs to consider the comprehensive influence of three factors, namely the severity of surface water accumulation, continuous large rainfall and whether the ground drainage treatment capacity can meet the current drainage requirement. However, the prior art only depends on the ground water accumulation condition to judge whether the next risk assessment is needed, and lacks certain reliability and accuracy.
2. The prior art lacks careful assessment on the rainwater penetration risk of the underground cable channel, mainly focuses on analyzing the sealing performance of the internal structure of the channel, and neglects the consideration of the working efficiency of the drainage system around the underground cable. However, if the seeper is too large, the underdrain pipe cannot drain effectively in time, increasing the risk of channel rain penetration. In addition, in the process of analyzing the sealing performance of the internal structure of the underground cable channel, the sealing performance of each cable joint point which is a part of the cable channel is not evaluated. Although these joints are located outside the channel, if rain penetration occurs, this can also result in shorting of cables inside the channel.
3. In the prior art, when analyzing whether the underground cable channel has a geological collapse risk, the pressure condition of the soil layer above the channel and the erosion condition of the soil layer below the channel are evaluated to form threat to the geological collapse, and certain analysis cannot be comprehensively and comprehensively given on the side soil layer pressure problem, so that the subsequent geological collapse risk analysis result is not scientific, the actual geological collapse risk condition of the underground cable channel cannot be mastered in time, and the formulation of subsequent measures is not facilitated.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a power grid risk identification analysis method, a system and a storage medium, which effectively solve the problems mentioned in the background art.
The technical scheme adopted for solving the technical problems is as follows: in a first aspect, the present invention provides a power grid risk identification analysis method, including the following steps: the method comprises the following steps of (1) monitoring the ground environment of a target area in real time: and monitoring the ground environment corresponding to the underground cable channel of the target area in real time.
(2) And (3) safety analysis of the ground environment of the target area: and (3) acquiring abnormal characteristic parameters of the underground cable channel of the target area corresponding to the ground environment, analyzing the safety index of the underground cable channel of the target area corresponding to the ground environment, if the safety index is larger than the set ground environment safety index threshold value, executing the step (6), otherwise, indicating that the current ground environment is abnormal, and executing the step (3).
(3) Channel related information acquisition: and acquiring channel internal monitoring information and channel external monitoring information of the underground cable channel in the target area.
(4) Channel rain penetration risk assessment: analyzing the rainwater penetration risk coefficient of the underground cable trench of the current target area, if the rainwater penetration risk coefficient is smaller than or equal to a reasonable rainwater penetration risk coefficient threshold value, executing the step (5), otherwise, indicating that the rainwater penetration risk exists in the underground cable trench of the current target area, and executing the step (5) and the step (7) simultaneously.
(5) Channel geological collapse risk assessment: analyzing the geological collapse risk coefficient of the underground cable channel of the current target area, if the geological collapse risk coefficient is smaller than or equal to a reasonable geological collapse risk coefficient threshold value, executing the step (6), otherwise, executing the step (7) when the geological collapse risk exists in the underground cable channel of the current target area.
(6) Channel operation safety feedback: and carrying out safety feedback on the operation of the underground cable channel in the target area.
(7) Channel running risk early warning: and carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area.
Preferably, the abnormal characteristic parameters of the underground cable channel of the target area corresponding to the ground environment comprise the area and depth of the current accumulated water on the ground, the water level height in the drainage ditch at each monitoring time point and the rainwater flow at the inlet of the drainage ditch.
Preferably, the safety index analysis mode of the underground cable channel of the target area corresponding to the ground environment is as follows: extracting the area of the current water accumulation on the ground in the abnormal characteristic parametersAnd depth->By the formula->Obtaining abnormality index of ground water accumulation, wherein ∈>Respectively representing a preset ground reasonable water accumulation area threshold value and a reasonable water accumulation depth threshold value, < ->Representing natural constants.
Extracting the water level in the drainage ditch and the rainwater flow at the inlet of the drainage ditch at each monitoring time point in the abnormal characteristic parameters, and respectively recording asWherein->Number indicating each monitoring time point, +.>Analyzing the ground drainage abnormality index +_>The calculation formula is as follows: />WhereinIndicating a preset drain design flow, +.>Representing a preset reference height of the water level, +.>Indicate->Monitoring the water level in the drain at a time point, < >>Indicating the total number of monitoring time points.
Extracting current rainfall of target area from meteorological centerDuration of continuous rainfall in future->And intensity->Analyzing rainfall abnormality index of target area +.>The calculation formula is as follows: />Wherein->Respectively representing rainfall, rainfall duration and rainfall intensity of preset reference, +.>Respectively representing the rainfall, the rainfall duration and the rainfall intensity corresponding weight ratio of a preset target area.
The safety index of the underground cable channel of the analysis target area corresponding to the ground environment is calculated by the following formula:wherein->Respectively representing the corresponding weight proportion of the abnormal indexes of accumulated water, drainage and rainfall in a preset target area.
Preferably, the channel internal monitoring information includes a channel internal height value, a maximum crack length and a total damaged area of a channel wall, and pressure values of left and right side walls of the channel at each set time point within a set time period.
The channel exterior monitoring information includes cable joint information, underground pipe drainage information, and groundwater level information.
The cable joint information comprises a position deviation value and an insulation resistance value of each cable joint point.
The underground pipeline drainage information comprises a drainage unblocked index, a drainage capacity index and drainage operation efficiency of the underground drainage pipeline.
The underground water level information comprises the distance between the bottom of the trench and the underground water level at each set time point in the set time period.
Preferably, the analysis mode of the rainwater penetration risk coefficient of the underground cable channel in the current target area is as follows: extracting insulation resistance value of each cable joint point from cable joint informationWherein->The number indicating the joint point of each cable, Screening the maximum and minimum insulation resistance values of the cable joint points, which are respectively marked as +.>By the following constitutionFormula->Obtaining a cable sealing performance index of a target area underground cable channel, wherein +.>For a preset reasonable insulation resistance deviation threshold, < ->For a standard insulation resistance value of a predetermined cable connection point, < >>Indicating the total number of cable tie points.
Extracting the maximum crack length and total damaged area of the channel wall from the monitoring information in the channel, respectively recorded asBy the formula->Obtaining the structural sealing performance index of the underground cable channel of the target area, wherein +.>Respectively a preset reference crack length and a reference breakage area, < ->And evaluating correction factors for the sealing performance of the preset underground cable channel structure.
The comprehensive sealing performance index of the underground cable channel in the target area is analyzed, and the calculation formula is as follows:wherein->Respectively representing the corresponding weight ratio of the preset sealing performance indexes of the cable and the structure;
analyzing the target area according to the drainage information of the underground pipelineDrainage performance index of underground cable trench；
Analyzing the rainwater penetration risk coefficient of the underground cable channel of the current target area, wherein the calculation formula is as follows:wherein->Respectively representing the preset comprehensive sealing performance index and the weight ratio corresponding to the drainage performance index.
Preferably, the analysis mode of the drainage performance index of the underground cable trench in the target area is as follows: extracting the drainage smoothness index, drainage capacity index and drainage operation efficiency of the underground pipeline drainage system from the underground pipeline drainage information, and respectively recording asBy the formula->Obtaining the drainage performance index of the underground cable trench of the target area, wherein +.>Evaluating a correction factor for a preset drainage performance of the underground cable trench,the water drainage system is characterized by respectively comprising a preset water drainage smoothness index, a preset water drainage capacity index and a preset water drainage operation efficiency corresponding to the duty ratio.
Preferably, the analysis mode of the geological collapse risk coefficient of the underground cable channel of the current target area is as follows: extracting the channel internal height value of each set time point in the set time period from the channel internal monitoring informationWherein->Numbers indicating each set time point, +.>Screening for the minimum value +.>Acquiring an internal design height value of a target area underground cable channel>According to the minimum required height value in the channel defined by the construction of the underground cable channel stored in the WEB cloud>The pressure coefficient of the soil layer above the underground cable channel of the target area is analyzed, and the calculation formula is as follows:。
extracting the position deviation value of each cable joint point and the pressure values of the left and right side walls of the channel from the cable joint information and the monitoring information in the channel respectively, and marking the position deviation value and the pressure values as The side soil layer extrusion coefficient of the underground cable channel of the analysis target area is calculated by the following formula: />Wherein->Respectively representing a preset pressure threshold value bearable by the side wall of the underground cable channel, a reasonable pressure deviation threshold value of the left side wall and the right side wall of the channel and +.>And (5) representing a preset reasonable deviation threshold value of the cable joint point position.
Analyzing and obtaining the erosion coefficient of the soil layer below the underground cable channel of the target area according to the underground water level monitoring information。
From the formulaObtaining a geological collapse risk coefficient of the underground cable channel of the current target area, wherein +.>The corresponding duty ratio weights of the preset upper soil layer pressure coefficient, the side soil layer extrusion coefficient and the lower soil layer erosion coefficient are respectively set.
Preferably, the analysis mode of the erosion coefficient of the soil layer below the underground cable channel in the target area is as follows: extracting the distance between the bottom of the trench and the underground horizontal plane at each set time point in the set time period from the underground water level informationAccording to minimum required distance between the bottom of the underground cable trench and the underground horizontal plane, which is defined by the construction of the underground cable trench stored in the WEB cloudThe erosion coefficient of the soil layer below the underground cable channel of the target area is calculated, and the formula is as follows:wherein->Representing a preset reference distance value- >Indicating the total number of set time points.
A second aspect of the present invention proposes a power grid risk identification analysis system, comprising: and the real-time monitoring module is used for monitoring the ground environment corresponding to the underground cable channel of the target area in real time.
The system comprises a target area ground environment safety analysis module, a channel operation safety feedback module and a channel related information acquisition module, wherein the target area ground environment safety analysis module is used for acquiring abnormal characteristic parameters of a target area underground cable channel corresponding to a ground environment, analyzing the safety index, and executing the channel operation safety feedback module if the safety index is larger than a set ground environment safety index threshold value, otherwise, indicating that the current ground environment is abnormal, and executing the channel related information acquisition module.
And the channel related information acquisition module is used for acquiring channel internal monitoring information and channel external monitoring information of the underground cable channel in the target area.
The channel rainwater infiltration risk assessment module is used for analyzing the rainwater infiltration risk coefficient of the underground cable channel of the current target area, if the rainwater infiltration risk coefficient is smaller than or equal to the reasonable rainwater infiltration risk coefficient threshold value, the channel geological collapse risk assessment module is executed, otherwise, the channel geological collapse risk assessment module and the channel operation risk early warning module are executed simultaneously when the fact that the rainwater infiltration risk exists in the underground cable channel of the current target area is indicated.
The channel geological collapse risk assessment module is used for analyzing geological collapse risk coefficients of underground cable channels of the current target area, executing the channel operation safety feedback module if the geological collapse risk coefficients are smaller than or equal to a reasonable geological collapse risk coefficient threshold value, otherwise, executing the channel operation risk early warning module if the geological collapse risk exists in the underground cable channels of the current target area.
And the channel operation safety feedback module is used for carrying out channel operation safety feedback of the underground cable in the target area.
And the channel running risk early warning module is used for carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area.
And the cloud database is used for storing minimum required height values in the underground cable trench and minimum required spacing between the bottom of the trench and the underground horizontal plane.
A third aspect of the present invention proposes a storage medium storing one or more programs executable by one or more processors to implement steps in the grid risk identification analysis method according to the present invention.
Compared with the prior art, the invention has the following advantages and positive effects: (1) According to the invention, the ground environment corresponding to the underground cable trench in the target area is monitored in real time, the abnormal characteristic parameters are obtained, the safety index of the ground environment corresponding to the underground cable trench in the target area is analyzed, and the risk identification capability and the safety assessment accuracy are improved, so that whether the current ground environment needs further risk assessment or not is effectively judged, and corresponding processing operation is adopted, so that the safe operation of the underground cable trench is ensured.
(2) According to the invention, comprehensive evaluation is realized by combining three aspects of accumulated water, drainage and rainfall abnormality indexes of the target area and comprehensively analyzing the safety indexes of the underground cable channel of the target area corresponding to the ground environment, so that the defect that the corresponding safety indexes are too unilateral and limited by simply relying on the condition of the ground accumulated water in the prior art is effectively avoided, and further, the follow-up operation is scientific and reliable.
(3) According to the invention, the cable sealing performance index of the underground cable channel in the target area is combined with the structural sealing performance index, and the rainwater penetration possibility of relevant components inside the channel and outside the channel is fully considered, so that the comprehensive evaluation of the sealing performance of the underground cable channel in the target area is realized.
(4) According to the invention, the comprehensive sealing performance index and the drainage performance index obtained through analysis are combined with the rainwater infiltration risk of the underground cable channel in the analysis target area, so that the waterproof performance of the cable channel is measured, the effectiveness of a drainage system distributed around the cable channel is measured, the rainwater infiltration risk of the underground cable channel in the target area is analyzed more comprehensively and accurately, and further, a more targeted risk management and maintenance strategy is provided, and the safe operation of the cable system is protected to the greatest extent.
(5) According to the method, the geological collapse risk of the underground cable channel of the target area is comprehensively estimated according to the upper soil layer pressure coefficient, the lateral soil layer extrusion coefficient and the lower soil layer erosion coefficient of the underground cable channel of the target area, so that the estimation result is accurate and comprehensive, the risk of geological collapse of the underground cable channel is early warned in time, corresponding risk management measures are carried out, and potential losses are reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the method of the present invention.
Fig. 2 is a system module connection diagram of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, a power grid risk identification analysis method includes the following steps: the method comprises the following steps of (1) monitoring the ground environment of a target area in real time: and monitoring the ground environment corresponding to the underground cable channel of the target area in real time.
It should be explained that, the above-mentioned ground corresponding to the underground cable trench of the target area is to obtain the starting point and the destination point of the construction of the underground cable trench of the target area according to the design drawing of the underground cable trench of the target area, to obtain the corresponding starting point position and destination point position of the ground, and to divide the ground corresponding to the underground cable trench of the target area accordingly.
(2) And (3) safety analysis of the ground environment of the target area: and (3) acquiring abnormal characteristic parameters of the underground cable channel of the target area corresponding to the ground environment, analyzing the safety index of the underground cable channel of the target area corresponding to the ground environment, if the safety index is larger than the set ground environment safety index threshold value, executing the step (6), otherwise, indicating that the current ground environment is abnormal, and executing the step (3).
In a preferred embodiment of the invention, the abnormal characteristic parameters of the underground cable channel of the target area corresponding to the ground environment comprise the area and depth of the current accumulated water on the ground, the water level height in the drainage ditch at each monitoring time point and the rainwater flow at the inlet of the drainage ditch.
The method for acquiring the abnormal characteristic parameters of the ground environment corresponding to the underground cable trench of the target area comprises the steps of acquiring an image of the ground corresponding to the underground cable trench by using a remote sensing technology, identifying each water accumulation area in the image by using an image processing technology, obtaining the outline of each water accumulation area by using an edge cutting technology, calculating the area of each water accumulation area according to the pixel value of each water accumulation area and a set proportion relation, and obtaining the current water accumulation area of the ground by accumulation calculation.
The method comprises the steps of determining the position of each water accumulation area on the ground by analyzing the position center point of each water accumulation area in an image of the underground cable channel corresponding to the ground, then scanning each water accumulation area by using a laser scanning system installed on an unmanned aerial vehicle so as to obtain the water accumulation depth of each water accumulation area, and screening the maximum value as the current water accumulation depth on the ground.
The water level in the drainage ditch and the rainwater flow at the inlet of the drainage ditch at each monitoring time point are respectively obtained through a water level sensor arranged in the drainage ditch and a flowmeter arranged at the inlet of the drainage ditch.
According to the embodiment of the invention, the abnormal characteristic parameters of the underground cable channel in the target area are obtained by monitoring the ground environment corresponding to the underground cable channel in real time, the safety index of the underground cable channel in the target area corresponding to the ground environment is analyzed, and the risk identification capability and the safety assessment accuracy are improved, so that whether the current ground environment needs further risk assessment or not is effectively judged, and corresponding processing operation is adopted, so that the safe operation of the underground cable channel is ensured.
In a preferred embodiment of the present invention, the safety index analysis method of the underground cable channel of the target area corresponding to the ground environment is as follows: extracting the area of the current water accumulation on the ground in the abnormal characteristic parametersAnd depth->From the formulaObtaining abnormality index of ground water accumulation, wherein ∈>Respectively representing a preset ground reasonable water accumulation area threshold value and a reasonable water accumulation depth threshold value, < ->Representing natural constants.
Extracting the water level in the drainage ditch and the rainwater flow at the inlet of the drainage ditch at each monitoring time point in the abnormal characteristic parameters, and respectively recording asWherein->Number indicating each monitoring time point, +.>Analyzing the ground drainage abnormality index +_>The calculation formula is as follows: />Wherein->Indicating a preset drain design flow, +.>Representing a preset reference height of the water level, +.>Indicate->Monitoring the water level in the drain at a time point, < >>Indicating the total number of monitoring time points.
Extracting current rainfall of target area from meteorological centerDuration of continuous rainfall in future->And intensity->Analyzing rainfall abnormality index of target area +.>The calculation formula is as follows: />Wherein->Respectively representing rainfall, rainfall duration and rainfall intensity of preset reference, +.>Respectively representing the rainfall, the rainfall duration and the rainfall intensity corresponding weight ratio of a preset target area.
The safety index of the underground cable channel of the analysis target area corresponding to the ground environment is calculated by the following formula:wherein->Respectively representing the corresponding weight proportion of the abnormal indexes of accumulated water, drainage and rainfall in a preset target area.
According to the embodiment of the invention, comprehensive evaluation is realized by combining three aspects of accumulated water, drainage and rainfall abnormality indexes of the target area with comprehensive analysis of the safety indexes of the underground cable channel of the target area corresponding to the ground environment, so that the defect that the corresponding safety indexes are too unilateral and limited by simply relying on the condition of the ground accumulated water in the prior art is effectively avoided, and further, the follow-up operation is scientific and reliable.
(3) Channel related information acquisition: and acquiring channel internal monitoring information and channel external monitoring information of the underground cable channel in the target area.
In a preferred embodiment of the present invention, the channel interior monitoring information includes a channel interior height value, a maximum crack length and a total broken area of a channel wall, and pressure values of left and right side walls of the channel at each set time point within a set time period.
The channel exterior monitoring information includes cable joint information, underground pipe drainage information, and groundwater level information.
The cable joint information comprises a position deviation value and an insulation resistance value of each cable joint point.
The underground pipeline drainage information comprises a drainage unblocked index, a drainage capacity index and drainage operation efficiency of the underground drainage pipeline.
The underground water level information comprises the distance between the bottom of the trench and the underground water level at each set time point in the set time period.
As a specific embodiment, the channel internal monitoring information obtaining manner is as follows: the method comprises the steps of carrying out inspection on each channel wall through a laser scanner installed in a target area underground cable channel, comprising front, rear, left, right, upper and lower walls of the channel, obtaining point cloud data and reflection intensity information of each channel wall, preprocessing by using point cloud processing software, including noise point filtering, point cloud registration and the like, extracting crack characteristic information in the point cloud data, identifying and extracting each crack of each channel wall by using a fitting curve and an edge detection algorithm, measuring the lengths of each crack of each channel wall by using a software measuring tool, and screening the maximum value of the crack length as the maximum crack length of the channel wall.
And screening each area with lower reflection intensity and point cloud data gray scale smaller than a preset value as each damaged area according to the reflection intensity information of each channel wall, calculating the number of points in each damaged area according to a set proportion to obtain the area of each damaged area of each channel wall, and performing accumulated calculation to obtain the total damaged area of the channel wall.
And scanning the heights of the bottom and the top of the channel at each set time point in the set time period by using the laser scanner to obtain the height value inside the channel at each set time point in the set time period.
The pressure values of the left side wall and the right side wall of the channel are obtained through pressure sensors arranged on the left side wall and the right side wall of the channel.
As a specific embodiment, the channel external monitoring information obtaining manner is as follows: the insulation resistance value and the position of each cable joint are monitored in real time through an insulation resistance detection instrument and a laser range finder which are installed in a control box near the cable joint, the insulation resistance value of each cable joint point and the current distance value of the control box are obtained, and the absolute value difference value between the design distance between each cable joint and the control box and the current distance value is used as the position offset value of each cable joint point according to the design distance between each cable joint and the control box in the underground cable channel design diagram of the target area.
Further, the water flow rate at each continuous monitoring time point of the set position in the underground pipeline is obtained through a flowmeter arranged at the set position in the underground drainage pipeline, and the maximum value and the minimum value are screened and respectively recorded asAnd carrying out average calculation on the water flow at each monitoring time point to obtain average water flow +. >From the formulaObtaining the drainage smoothness index of the underground drainage pipeline, wherein ∈water drainage pipeline is ∈water drainage pipeline>And representing a preset reasonable water flow deviation threshold value and a reasonable water flow threshold value.
By passing throughThe flow velocity sensor arranged at the outlet of the underground drainage pipeline monitors the water flow velocity at each set time point in the set time period, and the average water flow velocity at the outlet of the pipeline is obtained through average calculationObtaining the cross section area ++of the outlet of the underground pipeline according to the design diagram of the underground cable channel of the target area>By the formula->Obtaining the water discharge of the underground water discharge pipeline in a set time period, wherein +.>Indicates the duration of the preset set period of time, < +.>The method is used for representing a preset drainage evaluation correction factor and analyzing the drainage capacity index of the underground drainage pipeline, and comprises the following calculation formula: />Wherein->And the standard drainage amount of the unit time of the preset underground drainage pipeline is shown.
The water level change value in each monitoring time period is obtained through a water level monitoring instrument arranged in the underground drainage pipelineWherein->Number indicating each monitoring period, +.>The water level change rate in each monitoring time period is analyzed, and the calculation formula is as follows: />Wherein->Representing the duration of a preset monitoring period of time, and the duration is represented by the formulaTo obtain the drainage operation efficiency of the underground drainage pipeline, wherein ∈ >Indicating a preset reasonable water level change rate threshold value of the underground drainage pipeline,/->Indicating the total number of monitoring periods.
Further, according to the design diagram of the underground cable channel in the target area, the distance between the bottom of the channel and the underground horizontal plane with reference to the height of the water level in the diagram is obtainedObtaining the underground water level height of each set time point in the set time period through a water level gauge arranged in the underground water level monitoring well>By the formula->Obtaining the distance between the bottom of the trench and the underground water level at each set time point in the set time period, wherein +.>Is the reference water level height.
(4) Channel rain penetration risk assessment: analyzing the rainwater penetration risk coefficient of the underground cable trench of the current target area, if the rainwater penetration risk coefficient is smaller than or equal to a reasonable rainwater penetration risk coefficient threshold value, executing the step (5), otherwise, indicating that the rainwater penetration risk exists in the underground cable trench of the current target area, and executing the step (5) and the step (7) simultaneously.
In the present inventionIn a preferred embodiment of the present invention, the analysis method of the rainwater penetration risk coefficient of the underground cable trench in the target area is as follows: extracting insulation resistance value of each cable joint point from cable joint informationWherein->Numbers indicating the joints of the cables, +. >Screening the maximum and minimum insulation resistance values of cable joint points, respectively marking asBy the formula->Obtaining a cable sealing performance index of a target area underground cable channel, wherein +.>For a preset reasonable insulation resistance deviation threshold, < ->For a standard insulation resistance value of a predetermined cable connection point, < >>Indicating the total number of cable tie points.
Extracting the maximum crack length and total damaged area of the channel wall from the monitoring information in the channel, respectively recorded asBy the formula->Obtaining the structural sealing performance index of the underground cable channel of the target area, wherein +.>Respectively a preset reference crack length and a reference breakage area, < ->And evaluating correction factors for the sealing performance of the preset underground cable channel structure.
The comprehensive sealing performance index of the underground cable channel in the target area is analyzed, and the calculation formula is as follows:wherein->Respectively representing the corresponding weight ratio of the preset sealing performance indexes of the cable and the structure.
According to the embodiment of the invention, the cable sealing performance index of the underground cable channel in the target area is combined with the structural sealing performance index, and the rainwater penetration possibility of relevant components inside the channel and outside the channel is fully considered, so that the comprehensive evaluation of the sealing performance of the underground cable channel in the target area is realized.
Analyzing the drainage performance index of the underground cable channel of the target area according to the drainage information of the underground pipeline。
Analyzing the rainwater penetration risk coefficient of the underground cable channel of the current target area, wherein the calculation formula is as follows:wherein->Respectively representing the preset comprehensive sealing performance index and the weight ratio corresponding to the drainage performance index.
In a preferred embodiment of the present invention, the drainage performance index of the underground cable trench in the target area is analyzed in the following manner: extracting the drainage smoothness index, drainage capacity index and drainage operation efficiency of the underground pipeline drainage system from the underground pipeline drainage information, and respectively recording asBy the formula->Obtaining the drainage performance index of the underground cable trench of the target area, wherein +.>Evaluating correction factors for the drainage performance of a predetermined underground cable trench, < >>The water drainage system is characterized by respectively comprising a preset water drainage smoothness index, a preset water drainage capacity index and a preset water drainage operation efficiency corresponding to the duty ratio.
According to the embodiment of the invention, the comprehensive sealing performance index and the drainage performance index obtained through analysis are combined with the rainwater infiltration risk of the underground cable channel in the analysis target area, so that the waterproof performance of the cable channel is measured, the effectiveness of the drainage system distributed around the cable channel is measured, the rainwater infiltration risk of the underground cable channel in the target area is analyzed more comprehensively and accurately, and further a more targeted risk management and maintenance strategy is provided, and the safe operation of the cable system is protected to the greatest extent.
(5) Channel geological collapse risk assessment: analyzing the geological collapse risk coefficient of the underground cable channel of the current target area, if the geological collapse risk coefficient is smaller than or equal to a reasonable geological collapse risk coefficient threshold value, executing the step (6), otherwise, executing the step (7) when the geological collapse risk exists in the underground cable channel of the current target area.
In a preferred embodiment of the present invention, the analysis method of the geological collapse risk coefficient of the underground cable channel of the current target area is as follows: extracting the channel internal height value of each set time point in the set time period from the channel internal monitoring informationWherein->Numbers indicating each set time point, +.>Screening for the minimum value +.>Acquiring an internal design height value of a target area underground cable channel>According to the minimum required height value in the channel defined by the construction of the underground cable channel stored in the WEB cloud>The pressure coefficient of the soil layer above the underground cable channel of the target area is analyzed, and the calculation formula is as follows: />。
Extracting the position deviation value of each cable joint point and the pressure values of the left and right side walls of the channel from the cable joint information and the monitoring information in the channel respectively, and marking the position deviation value and the pressure values asThe side soil layer extrusion coefficient of the underground cable channel of the analysis target area is calculated by the following formula: / >Wherein->Respectively representing a preset pressure threshold value bearable by the side wall of the underground cable channel, a reasonable pressure deviation threshold value of the left side wall and the right side wall of the channel and +.>And (5) representing a preset reasonable deviation threshold value of the cable joint point position.
Analyzing and obtaining the erosion coefficient of the soil layer below the underground cable channel of the target area according to the underground water level monitoring information。
From the formulaObtaining a geological collapse risk coefficient of the underground cable channel of the current target area, wherein +.>The corresponding duty ratio weights of the preset upper soil layer pressure coefficient, the side soil layer extrusion coefficient and the lower soil layer erosion coefficient are respectively set.
In a preferred embodiment of the present invention, the analysis method of the erosion coefficient of the soil layer below the underground cable trench in the target area is as follows: extracting the distance between the bottom of the trench and the underground horizontal plane at each set time point in the set time period from the underground water level informationAccording to minimum required distance between the bottom of the underground cable trench and the underground horizontal plane, which is defined by the construction of the underground cable trench stored in the WEB cloud>The erosion coefficient of the soil layer below the underground cable channel of the target area is calculated, and the formula is as follows: />Wherein->Representing a preset reference distance value->Indicating the total number of set time points.
According to the embodiment of the invention, the geological collapse risk of the underground cable trench of the target area is comprehensively estimated according to the upper soil layer pressure coefficient, the lateral soil layer extrusion coefficient and the lower soil layer erosion coefficient of the underground cable trench of the target area, so that the estimation result has accuracy and comprehensiveness, the risk of geological collapse of the underground cable trench is further early warned in time, corresponding risk management measures are carried out, and potential loss is reduced.
(6) Channel operation safety feedback: and carrying out safety feedback on the operation of the underground cable channel in the target area.
(7) Channel running risk early warning: and carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area.
Example 2
Referring to fig. 2, the invention provides a power grid risk identification analysis system, which comprises a target area ground environment real-time monitoring module, a target area ground environment safety analysis module, a channel related information acquisition module, a channel rainwater infiltration risk assessment module, a channel geological collapse risk assessment module, a channel operation safety feedback module, a channel operation risk early warning module and a cloud database. The system comprises a target area ground environment real-time monitoring module, a target area ground environment safety analysis module, a channel related information acquisition module, a channel operation safety feedback module, a channel rainwater infiltration risk assessment module, a channel geological collapse risk assessment module and a channel geological collapse risk early warning module, wherein the target area ground environment real-time monitoring module is connected with the target area ground environment safety analysis module, the target area ground environment safety analysis module is respectively connected with the channel related information acquisition module and the channel operation safety feedback module, the channel related information acquisition module is connected with the channel rainwater infiltration risk assessment module and the channel geological collapse risk assessment module, the channel geological collapse risk assessment module is respectively connected with the channel geological collapse risk assessment module and the channel operation risk early warning module, and the cloud database.
And the real-time monitoring module is used for monitoring the ground environment corresponding to the underground cable channel of the target area in real time.
The system comprises a target area ground environment safety analysis module, a channel operation safety feedback module and a channel related information acquisition module, wherein the target area ground environment safety analysis module is used for acquiring abnormal characteristic parameters of a target area underground cable channel corresponding to a ground environment, analyzing the safety index, and executing the channel operation safety feedback module if the safety index is larger than a set ground environment safety index threshold value, otherwise, indicating that the current ground environment is abnormal, and executing the channel related information acquisition module.
And the channel related information acquisition module is used for acquiring channel internal monitoring information and channel external monitoring information of the underground cable channel in the target area.
The channel rainwater infiltration risk assessment module is used for analyzing the rainwater infiltration risk coefficient of the underground cable channel of the current target area, if the rainwater infiltration risk coefficient is smaller than or equal to the reasonable rainwater infiltration risk coefficient threshold value, the channel geological collapse risk assessment module is executed, otherwise, the channel geological collapse risk assessment module and the channel operation risk early warning module are executed simultaneously when the fact that the rainwater infiltration risk exists in the underground cable channel of the current target area is indicated.
The channel geological collapse risk assessment module is used for analyzing geological collapse risk coefficients of underground cable channels of the current target area, executing the channel operation safety feedback module if the geological collapse risk coefficients are smaller than or equal to a reasonable geological collapse risk coefficient threshold value, otherwise, executing the channel operation risk early warning module if the geological collapse risk exists in the underground cable channels of the current target area.
And the channel operation safety feedback module is used for carrying out channel operation safety feedback of the underground cable in the target area.
And the channel running risk early warning module is used for carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area.
And the cloud database is used for storing minimum required height values in the underground cable trench and minimum required spacing between the bottom of the trench and the underground horizontal plane.
Example 3
The present invention proposes a storage medium storing one or more programs executable by one or more processors to implement the steps in the grid risk identification analysis method of the present invention.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.
Claims (7)
1. The power grid risk identification analysis method is characterized by comprising the following steps of:
(1) Real-time monitoring of the ground environment of a target area: real-time monitoring is carried out on the ground environment corresponding to the underground cable channel of the target area;
(2) And (3) safety analysis of the ground environment of the target area: acquiring abnormal characteristic parameters of the ground environment corresponding to the underground cable trench of the target area, analyzing the safety index of the ground environment corresponding to the underground cable trench of the target area, executing (6) if the safety index is larger than the set ground environment safety index threshold value, otherwise, executing (3) if the current ground environment is abnormal;
the safety index analysis mode of the underground cable channel of the target area corresponding to the ground environment is as follows: extracting the area of the current water accumulation on the ground in the abnormal characteristic parametersAnd depth->By the formula->Obtaining abnormality index of ground water accumulation, wherein ∈>Respectively representing a preset ground reasonable water accumulation area threshold value and a reasonable water accumulation depth threshold value, < ->Representing natural constants;
extracting the water level in the drainage ditch and the rainwater flow at the inlet of the drainage ditch at each monitoring time point in the abnormal characteristic parameters, and respectively recording asWherein->The number indicating the time point of each monitoring,/>analyzing the ground drainage abnormality index +_>The calculation formula is as follows: />Wherein->Indicating a preset drain design flow, +. >Representing a preset reference height of the water level, +.>Indicate->Monitoring the water level in the drain at a time point, < >>Indicating the total number of monitoring time points;
extracting current rainfall of target area from meteorological centerDuration of continuous rainfall in future->And intensity->Analyzing rainfall abnormality index of target area +.>The calculation formula is as follows: />WhereinRespectively representing rainfall, rainfall duration and rainfall intensity of preset reference, +.>Respectively representing rainfall capacity, rainfall duration and rainfall intensity corresponding weight ratio of a preset target area;
the safety index of the underground cable channel of the analysis target area corresponding to the ground environment is calculated by the following formula:wherein->Respectively representing the weight proportion corresponding to the abnormal indexes of accumulated water, drainage and rainfall in a preset target area;
(3) Channel related information acquisition: acquiring channel internal monitoring information and channel external monitoring information of an underground cable channel of a target area;
(4) Channel rain penetration risk assessment: analyzing the rainwater penetration risk coefficient of the underground cable duct of the current target area, if the rainwater penetration risk coefficient is smaller than or equal to a reasonable rainwater penetration risk coefficient threshold value, executing the step (5), otherwise, indicating that the rainwater penetration risk exists in the underground cable duct of the current target area, and executing the step (5) and the step (7) simultaneously;
The analysis mode of the rainwater penetration risk coefficient of the underground cable channel in the current target area is as follows: extracting insulation resistance value of each cable joint point from cable joint informationWherein->The number indicating the joint point of each cable,/>screening the maximum and minimum insulation resistance values of the cable joint points, which are respectively marked as +.>From the formulaObtaining a cable sealing performance index of a target area underground cable channel, wherein +.>For a preset reasonable insulation resistance deviation threshold, < ->For a standard insulation resistance value of a predetermined cable connection point, < >>Representing the total number of cable tie-in points;
extracting the maximum crack length and total damaged area of the channel wall from the monitoring information in the channel, respectively recorded asBy the formula->Obtaining the structural sealing performance index of the underground cable channel of the target area, wherein +.>Respectively a preset reference crack length and a reference breakage area, < ->Evaluating correction factors for the sealing performance of a preset underground cable channel structure;
underground cable for analysis target areaThe comprehensive sealing performance index of the channel is calculated by the following formula:wherein->Respectively representing the corresponding weight ratio of the preset sealing performance indexes of the cable and the structure;
analyzing the drainage performance index of the underground cable channel of the target area according to the drainage information of the underground pipeline ；
Analyzing the rainwater penetration risk coefficient of the underground cable channel of the current target area, wherein the calculation formula is as follows:wherein->Respectively representing the preset comprehensive sealing performance index and the weight ratio corresponding to the drainage performance index;
channel geological collapse risk assessment: analyzing the geological collapse risk coefficient of the underground cable channel of the current target area, if the geological collapse risk coefficient is smaller than or equal to a reasonable geological collapse risk coefficient threshold value, executing the step (6), otherwise, indicating that the geological collapse risk exists in the underground cable channel of the current target area, and executing the step (7);
the analysis mode of the geological collapse risk coefficient of the underground cable channel of the current target area is as follows: extracting the channel internal height value of each set time point in the set time period from the channel internal monitoring informationWherein->Numbers indicating each set time point, +.>Screening for the minimum value +.>Acquiring an internal design height value of a target area underground cable channel>According to the minimum required height value in the channel defined by the construction of the underground cable channel stored in the WEB cloud>The pressure coefficient of the soil layer above the underground cable channel of the target area is analyzed, and the calculation formula is as follows:；
extracting the position deviation value of each cable joint point and the pressure values of the left and right side walls of the channel from the cable joint information and the monitoring information in the channel respectively, and marking the position deviation value and the pressure values as The side soil layer extrusion coefficient of the underground cable channel of the analysis target area is calculated by the following formula: />WhereinRespectively representing a preset pressure threshold value bearable by the side wall of the underground cable channel, a reasonable pressure deviation threshold value of the left side wall and the right side wall of the channel and +.>Representing a preset reasonable deviation threshold value of the cable joint point position;
analyzing and obtaining the erosion coefficient of the soil layer below the underground cable channel of the target area according to the underground water level monitoring information；
From the formulaObtaining a geological collapse risk coefficient of the underground cable channel of the current target area, wherein +.>The corresponding proportion weights of a preset upper soil layer pressure coefficient, a preset lateral soil layer extrusion coefficient and a preset lower soil layer erosion coefficient are respectively adopted;
(6) Channel operation safety feedback: carrying out safe feedback on the operation of the underground cable channel of the target area;
(7) Channel running risk early warning: and carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area.
2. The power grid risk identification analysis method according to claim 1, wherein: the abnormal characteristic parameters of the underground cable channel of the target area corresponding to the ground environment comprise the area and depth of the current accumulated water on the ground, the water level in the drainage ditch at each monitoring time point and the rainwater flow at the inlet of the drainage ditch.
3. The power grid risk identification analysis method according to claim 1, wherein: the channel internal monitoring information comprises channel internal height values at each set time point in a set time period, the maximum crack length and the total damaged area of the channel wall and pressure values of the left side wall and the right side wall of the channel;
the channel external monitoring information comprises cable joint information, underground pipeline drainage information and underground water level information;
the cable joint information comprises a position offset value and an insulation resistance value of each cable joint point;
the underground pipeline drainage information comprises a drainage unblocked index, a drainage capacity index and drainage operation efficiency of the underground drainage pipeline;
the underground water level information comprises the distance between the bottom of the trench and the underground water level at each set time point in the set time period.
4. The power grid risk identification analysis method according to claim 1, wherein: the analysis mode of the drainage performance index of the underground cable channel in the target area is as follows: extracting the drainage smoothness index, drainage capacity index and drainage operation efficiency of the underground pipeline drainage system from the underground pipeline drainage information, and respectively recording asFrom the formula Obtaining the drainage performance index of the underground cable trench of the target area, wherein +.>Evaluating correction factors for the drainage performance of a predetermined underground cable trench, < >>The water drainage system is characterized by respectively comprising a preset water drainage smoothness index, a preset water drainage capacity index and a preset water drainage operation efficiency corresponding to the duty ratio.
5. The power grid risk identification analysis method according to claim 1, wherein: the analysis mode of the soil erosion coefficient below the underground cable channel of the target area is as follows: extracting the distance between the bottom of the trench and the underground horizontal plane at each set time point in the set time period from the underground water level informationAccording to minimum required distance between the bottom of the underground cable trench and the underground horizontal plane, which is defined by the construction of the underground cable trench stored in the WEB cloud>The erosion coefficient of the soil layer below the underground cable channel of the target area is calculated, and the formula is as follows: />Wherein->Representing a preset reference distance value->Indicating the total number of set time points.
6. The power grid risk identification analysis system is characterized by comprising a target area ground environment real-time monitoring module, wherein the target area ground environment real-time monitoring module is used for monitoring the ground environment corresponding to an underground cable channel of a target area in real time;
the system comprises a target area ground environment safety analysis module, a channel operation safety feedback module and a channel related information acquisition module, wherein the target area ground environment safety analysis module is used for acquiring abnormal characteristic parameters of a target area underground cable channel corresponding to a ground environment, analyzing the safety index of the target area underground cable channel, and executing the channel operation safety feedback module if the safety index is larger than a set ground environment safety index threshold value, otherwise, indicating that the current ground environment is abnormal;
The safety index analysis mode of the underground cable channel of the target area corresponding to the ground environment is as follows: extracting the area of the current water accumulation on the ground in the abnormal characteristic parametersAnd depth->By the formula->Obtaining abnormality index of ground water accumulation, wherein ∈>Respectively representing a preset ground reasonable ponding area threshold value and a reasonable ponding areaThreshold of water depth, < >>Representing natural constants;
extracting the water level in the drainage ditch and the rainwater flow at the inlet of the drainage ditch at each monitoring time point in the abnormal characteristic parameters, and respectively recording asWherein->Number indicating each monitoring time point, +.>Analyzing the ground drainage abnormality index +_>The calculation formula is as follows: />Wherein->Indicating a preset drain design flow, +.>Representing a preset reference height of the water level, +.>Indicate->Monitoring the water level in the drain at a time point, < >>Indicating the total number of monitoring time points;
extracting current rainfall of target area from meteorological centerDuration of continuous rainfall in future->And intensity->Analyzing rainfall abnormality index of target area +.>The calculation formula is as follows: />WhereinRespectively representing rainfall, rainfall duration and rainfall intensity of preset reference, +.>Respectively representing rainfall capacity, rainfall duration and rainfall intensity corresponding weight ratio of a preset target area;
The safety index of the underground cable channel of the analysis target area corresponding to the ground environment is calculated by the following formula:wherein->Respectively representing the weight proportion corresponding to the abnormal indexes of accumulated water, drainage and rainfall in a preset target area;
the channel related information acquisition module is used for acquiring channel internal monitoring information and channel external monitoring information of the underground cable channel of the target area;
the channel rainwater infiltration risk assessment module is used for analyzing the rainwater infiltration risk coefficient of the underground cable channel of the current target area, if the rainwater infiltration risk coefficient is smaller than or equal to a reasonable rainwater infiltration risk coefficient threshold value, the channel geological collapse risk assessment module is executed, otherwise, the channel geological collapse risk assessment module and the channel operation risk early warning module are executed simultaneously when the fact that the rainwater infiltration risk exists in the underground cable channel of the current target area is indicated;
the analysis mode of the rainwater penetration risk coefficient of the underground cable channel in the current target area is as follows: extracting insulation resistance value of each cable joint point from cable joint informationWherein->Numbers indicating the joints of the cables, +.>Screening the maximum and minimum insulation resistance values of the cable joint points, which are respectively marked as +.>From the formulaObtaining a cable sealing performance index of a target area underground cable channel, wherein +. >For a preset reasonable insulation resistance deviation threshold, < ->For a standard insulation resistance value of a predetermined cable connection point, < >>Representing the total number of cable tie-in points;
extracting the maximum crack length and total damaged area of the channel wall from the monitoring information in the channel, respectively recorded asBy the formula->Obtaining the structural sealing performance index of the underground cable channel of the target area, wherein +.>Respectively a preset reference crack length and a reference breakage area, < ->Evaluating correction factors for the sealing performance of a preset underground cable channel structure;
the comprehensive sealing performance index of the underground cable channel in the target area is analyzed, and the calculation formula is as follows:wherein->Respectively representing the corresponding weight ratio of the preset sealing performance indexes of the cable and the structure;
analyzing the drainage performance index of the underground cable channel of the target area according to the drainage information of the underground pipeline；
Analyzing the rainwater penetration risk coefficient of the underground cable channel of the current target area, wherein the calculation formula is as follows:wherein->Respectively representing the preset comprehensive sealing performance index and the weight ratio corresponding to the drainage performance index;
the channel geological collapse risk assessment module is used for analyzing geological collapse risk coefficients of underground cable channels of the current target area, executing the channel operation safety feedback module if the geological collapse risk coefficients are smaller than or equal to a reasonable geological collapse risk coefficient threshold value, otherwise, indicating that geological collapse risks exist in the underground cable channels of the current target area, and executing the channel operation risk early warning module;
The analysis mode of the geological collapse risk coefficient of the underground cable channel of the current target area is as follows: extracting the channel internal height value of each set time point in the set time period from the channel internal monitoring informationWherein->Numbers indicating each set time point, +.>Screening for the minimum value +.>Acquiring an internal design height value of a target area underground cable channel>According to the minimum required height value in the channel defined by the construction of the underground cable channel stored in the WEB cloudThe pressure coefficient of the soil layer above the underground cable channel of the target area is analyzed, and the calculation formula is as follows:；
extracting the position deviation value of each cable joint point and the pressure values of the left and right side walls of the channel from the cable joint information and the monitoring information in the channel respectively, and marking the position deviation value and the pressure values asAnalysis target area underground cable channelThe calculation formula of the lateral soil layer extrusion coefficient is as follows: />Wherein->Respectively representing a preset pressure threshold value bearable by the side wall of the underground cable channel, a reasonable pressure deviation threshold value of the left side wall and the right side wall of the channel and +.>Representing a preset reasonable deviation threshold value of the cable joint point position;
analyzing and obtaining the erosion coefficient of the soil layer below the underground cable channel of the target area according to the underground water level monitoring information ；
From the formulaObtaining a geological collapse risk coefficient of the underground cable channel of the current target area, wherein +.>The corresponding proportion weights of a preset upper soil layer pressure coefficient, a preset lateral soil layer extrusion coefficient and a preset lower soil layer erosion coefficient are respectively adopted;
the channel operation safety feedback module is used for carrying out channel operation safety feedback of the underground cable in the target area;
the channel running risk early warning module is used for carrying out rainwater infiltration risk early warning and geological collapse risk early warning on the underground cable channel of the target area;
and the cloud database is used for storing minimum required height values in the underground cable trench and minimum required spacing between the bottom of the trench and the underground horizontal plane.
7. A storage medium, characterized by: the storage medium stores one or more programs executable by one or more processors to implement the steps in the grid risk identification analysis method of any of claims 1-5.
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| 城市地下电缆设施安全风险的模糊综合分析;褚晓杰;杨太华;;能源与环境(06);全文 * |
| 深大基坑无线自动化监测系统的开发应用;何宏盛;梁超;童立元;张国柱;何兵兵;朱世豪;;城市轨道交通研究(02);全文 * |
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