CN116542061B - River port lake region water drainage capacity survey data analysis method - Google Patents
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Abstract
The invention discloses a method for analyzing survey data of drainage capacity of a river port lake region water system, which relates to the technical field of water system waterlogging treatment, and solves the technical problems that the corresponding drainage channel and the confluence time of other regions are not considered, the risk judgment of the corresponding drainage channel and the confluence time of other regions possibly have errors, the judged numerical value is inaccurate, the rainfall in unit time is obtained from monitoring data, the drainage time and the confluence quantity of the drainage channel are analyzed, whether the drainage risk exists in the survey monitoring region or not is analyzed, the rainfall in unit time is confirmed in advance, the drainage time of the rainfall in unit time is confirmed, according to the confirmed rainfall and the confluence time of the previous group of regions, when the confluence time arrives, the residual water storage quantity of the region is in a reduced state, the corresponding waterlogging risk time is confirmed according to the confirmed water flow difference value, a corresponding waterlogging risk signal is generated representing that the waterlogging risk exists in the region, and the accuracy of waterlogging judgment is improved.
Description
Technical Field
The invention belongs to the technical field of water system waterlogging treatment, and particularly relates to a method for analyzing survey data of drainage capacity of a river port lake region water system.
Background
Waterlogging refers to the phenomenon that water accumulation disasters are generated in cities due to strong precipitation or continuous precipitation exceeding urban drainage capacity; the waterlogging is serious; the water storage volume of the lake is reduced, the water level of the lake surface in the flood season rises, and the water level of the lake surface is easy to break, so that disasters are caused; the reclamation cuts down the regulation function of the lake, and the flood disasters frequently occur.
The invention of patent publication number CN109871621B discloses a method for analyzing urban storm waterlogging catchment area, which comprises the steps of adopting an SMS surface water simulation system to conduct mesh subdivision on any selected area to obtain a calculation area; obtaining DEM data of an area to be researched, giving the roughness and the DEM data to a calculation area, and calculating the elevation of each grid; adding rainfall data into the calculation area, and calculating rainfall production confluence of each grid by adopting a front loss and rear loss method; calculating the water depth and the water flow speed of each grid by adopting a two-dimensional surface hydraulic model according to the rainfall confluence of each grid; calculating the edge flow of the grid with the water depth data according to the water flow speed of the grid with the water depth data and the edge length of the grid edge passing through with the water flow speed; and selecting grids with water depths larger than a set threshold value as analysis grids, and judging whether the analysis grids are catchment areas according to the water depths of the analysis grids and grids adjacent to the analysis grids and the side flow size and direction of each grid side.
In general, when analyzing drainage of water in a river and lake area, it is determined whether there is a risk of drainage in a corresponding area according to the corresponding rainfall and the corresponding drainage, but there is a possibility that there is an error in risk determination due to consideration of the time of confluence in a corresponding afflux channel and other areas, and the determined value is not accurate.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art; therefore, the invention provides a method for analyzing survey data of drainage capacity of river ports and lakes, which is used for solving the technical problem that risk judgment of corresponding afflux channels and other areas is possibly error and the judged numerical value is not accurate.
To achieve the above object, an embodiment according to a first aspect of the present invention provides a method for analyzing survey data of drainage capacity of a river port lake region water system, comprising the steps of:
s1, partitioning different water storage areas according to a river port lake area water system arrangement mode, constructing an arrangement chart among a plurality of partitions according to the arrangement mode, and confirming the afflux channels of different survey monitoring partitions from the arrangement chart, wherein the specific mode is as follows:
s11, confirming a survey monitoring subarea in a rainfall state from the monitoring data, and confirming an afflux channel of the survey monitoring subarea from the layout;
s12, according to the confirmed import channels, confirming the import distances of different import channels, sorting and marking the different import channels according to the arrangement mode of the import distances from small to large, and marking the different import channels as TD i Wherein i represents different afflux channels, and i=1, 2, … …, n, i is 1, which represents that the afflux distance of the afflux channel is shortest, and i is n, which represents that the afflux distance of the afflux channel is longest;
s13, carrying out next processing on the marked afflux channel and the survey monitoring zone;
s2, according to the determined survey monitoring subarea, acquiring rainfall in unit time from monitoring data, analyzing the afflux time and the afflux amount of an afflux channel, and analyzing whether the survey monitoring subarea has waterlogging risk or not, wherein the specific mode is as follows:
s21, confirming rainfall in unit time from the monitoring data, and marking the rainfall as JY k Where k represents the different survey monitoring zones, and the displacement per unit time of the survey monitoring zone is acquired and labeled PS k ；
S22, when JY k <PS k When the method is used, no treatment is carried out, otherwise, the next treatment is carried out;
s23, confirming a group of import channels closest to the survey monitoring subarea, confirming the distance value of the import channels, and obtaining the import time t1 of the water source inside the import channels imported to the survey monitoring subarea by adopting the distance value/the flow rate = the import time t1;
s24, analyzing and confirming the increment of the water source in the survey monitoring subarea in the remittance time t1, and marking the increment as ZC k And the remaining water storage capacity of the survey monitoring zone is confirmed and marked XS k Using XS k -ZC k ＝SY k Obtaining the final water storage margin SY of the survey monitoring zone k ；
S25, re-determiningAfter the sink time t1 is confirmed, the rainfall in the unit time is marked as YJ, the sink amount in the unit time of the sink channel is confirmed, the sink amount is marked as HR, and if (YJ+HR) > PS k In which PS is k Monitoring zone displacement per unit time for the present survey using (YJ+HR) -PS k The water volume difference CZ is obtained by =cz and SY is used k ÷CZ＝T k Waterlogging risk time T k The time T of risk of waterlogging k Transmitting the information to an external display end for external personnel to check, and timely making a response measure;
s26, if (YJ+HR) is less than or equal to PS k When the method is used, the next group of the afflux channels are monitored according to the mark i, and then the afflux quantity of the next group of the afflux channels in unit time is confirmed until the total quantity of a plurality of groups of the afflux quantity is larger than PS k Stopping and closing a subsequent afflux channel, prohibiting water source from afflux, acquiring a corresponding water quantity difference value and a corresponding final water storage allowance, adopting the final water storage allowance/the water quantity difference value = waterlogging risk time, transmitting the waterlogging risk time to an external display end, and marking a survey monitoring partition of the impending waterlogging risk;
s3, receiving and confirming the layout again, confirming and analyzing survey monitoring areas with waterlogging risk marks, generating different signals, and displaying the signals in an external display terminal, wherein the specific mode is as follows:
s31, analyzing whether continuous waterlogging risk marks exist according to the confirmed layout, if continuous waterlogging risk marks exist, analyzing whether a plurality of survey monitoring subareas with the continuous waterlogging risk marks exist in corresponding survey monitoring subareas, and if the continuous waterlogging risk marks exist, generating a high-level waterlogging risk signal and transmitting the high-level waterlogging risk signal to an external display terminal for display;
s32, if the survey monitoring subarea with the waterlogging risk marks does not exist, dividing the survey monitoring subarea with the waterlogging risk marks into a plurality of continuous sections, generating continuous waterlogging signals, closing a confluence channel converging into the continuous sections, and preferentially arranging waterlogging risk time for external operators to check and timely making corresponding measures;
s33, when the waterlogging risk marks carried by the survey monitoring areas are intermittent, intermittent control signals are generated and transmitted to an external display terminal for display;
s4, carrying out early warning processing of different levels according to different signals, wherein the early warning processing comprises the following steps:
s41, when a high waterlogging risk signal is received, an important alarm is generated, and display is carried out to warn outside personnel;
s42, when a continuous waterlogging signal is received, a moderate alarm is generated;
s43, when the intermittent control signal is received, the intermittent control signal is directly displayed in the corresponding display terminal.
Compared with the prior art, the invention has the beneficial effects that: according to the determined survey monitoring subarea, acquiring rainfall in unit time from the monitoring data, analyzing the afflux time and the afflux amount of the afflux channel, and analyzing whether the survey monitoring subarea has waterlogging risk or not;
the method comprises the steps of confirming a subarea with rainfall in advance, confirming rainfall in unit time in the actual rainfall process, analyzing the rainfall according to the confirmed rainfall and the merging time of the former subarea into the subarea, judging whether the residual water storage amount of the subarea is in a reduced state when the merging time arrives, confirming corresponding waterlogging risk time according to the confirmed water flow difference value, generating a corresponding waterlogging risk signal representing that the subarea has waterlogging risk, and binding the subarea, so that the accuracy of waterlogging risk judgment is improved.
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FIG. 1 is a schematic flow chart of the method of the invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, 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.
Referring to fig. 1, the application provides a method for analyzing survey data of drainage capacity of river harbor lake water system, which comprises the following steps:
s1, partitioning different water storage areas according to a river port lake area water system arrangement mode, constructing an arrangement chart among a plurality of partitions according to the arrangement mode, and confirming converging channels of different survey monitoring partitions from the arrangement chart, wherein the specific mode for confirming the converging channels is as follows:
s11, confirming a survey monitoring subarea in a rainfall state from the monitoring data, and confirming an afflux channel of the survey monitoring subarea from the layout;
s12, according to the confirmed import channels, confirming the import distances of different import channels, sorting and marking the different import channels according to the arrangement mode of the import distances from small to large, and marking the different import channels as TD i Wherein i represents different afflux channels, and i=1, 2, … …, n, i is 1, which represents that the afflux distance of the afflux channel is shortest, and i is n, which represents that the afflux distance of the afflux channel is longest;
s13, carrying out next processing on the marked afflux channel and the survey monitoring zone;
specifically, in a normally circulated river port lake region, the risk of waterlogging generally does not occur in a normal circulation state, and the risk of waterlogging easily occurs only when the amount of rainfall is excessive, so that the amount of the inflow in certain regions is increased;
s2, according to the determined survey monitoring subarea, rainfall in unit time is obtained from the monitoring data, the afflux time and the afflux amount of the afflux channel are analyzed, whether the survey monitoring subarea has waterlogging risk is analyzed, wherein the specific mode of analyzing whether the waterlogging risk exists is as follows:
s21, confirming rainfall in unit time from the monitoring data, and marking the rainfall as JY k Where k represents the different survey monitoring zones and is typically valued for 5 minutes per unit time, and the survey is acquiredThe displacement per unit time of the zone is monitored and marked as PS k ；
S22, when JY k <PS k When the method is used, no treatment is carried out, otherwise, the next treatment is carried out;
s23, confirming a group of import channels closest to the survey monitoring subarea, confirming the distance value of the import channels, and obtaining the import time t1 of the water source inside the import channels imported to the survey monitoring subarea by adopting the distance value/the flow rate = the import time t1;
s24, analyzing and confirming the increment of the water source in the survey monitoring subarea in the remittance time t1, and marking the increment as ZC k And the remaining water storage capacity of the survey monitoring zone is confirmed and marked XS k Specifically, the corresponding partition will generally have a corresponding water storage capacity remaining therein, using XS k -ZC k ＝SY k Obtaining the final water storage margin SY of the survey monitoring zone k ；
S25, after confirming the afflux time t1, the rainfall in the unit time is marked as YJ, the afflux in the unit time of the afflux channel is confirmed, the afflux is marked as HR, if (YJ+HR) > PS k In which PS is k Monitoring zone displacement per unit time for the present survey using (YJ+HR) -PS k The water volume difference CZ is obtained by =cz and SY is used k ÷CZ＝T k Waterlogging risk time T k And the risk time T of waterlogging k For a set of uncertainty values, although uncertainty values, for the fastest time value at which waterlogging is likely to occur, the risk time T of waterlogging will occur k Transmitting the information to an external display end for external personnel to check, and timely making a response measure;
s26, if (YJ+HR) is less than or equal to PS k When the method is used, the next group of the afflux channels are monitored according to the mark i, and then the afflux quantity of the next group of the afflux channels in unit time is confirmed until the total quantity of a plurality of groups of the afflux quantity is larger than PS k Stopping and closing the subsequent afflux channel, prohibiting the water source from afflux, obtaining the corresponding water quantity difference and the corresponding final water storage allowance, and adopting the final water storage allowance/the water quantity difference = waterlogging riskTransmitting the time of the risk of waterlogging to an external display end, and marking a survey monitoring partition of the risk of waterlogging;
specifically, after the corresponding side survey monitoring subarea is confirmed, the subarea with rainfall is confirmed in advance, the rainfall in unit time is confirmed in the actual rainfall process, the confirmed rainfall and the merging time of the last subarea into the subarea are analyzed according to the confirmed rainfall and the merging time, when the merging time arrives, whether the residual water storage capacity of the subarea is in a reduced state or not is confirmed, and then the corresponding waterlogging risk time is confirmed according to the confirmed water flow difference value, so that the corresponding waterlogging risk signal is generated and bound with the subarea, and the accuracy of the waterlogging risk judgment is improved.
S3, receiving and confirming the layout again, confirming and analyzing survey monitoring areas with waterlogging risk marks, generating different signals, and displaying the signals in an external display terminal, wherein the specific mode for confirming and analyzing is as follows:
s31, analyzing whether continuous waterlogging risk marks exist according to the confirmed layout, if continuous waterlogging risk marks exist, analyzing whether a plurality of survey monitoring subareas with the continuous waterlogging risk marks exist in corresponding survey monitoring subareas, if the continuous waterlogging risk marks exist, generating a high-level waterlogging risk signal, and transmitting the high-level waterlogging risk signal to an external display terminal for display, wherein three groups of waterlogging risk areas exist, and all three groups of waterlogging risk areas are converged to one place, so that serious waterlogging can occur in the position;
s32, if the survey monitoring subarea with the waterlogging risk marks does not exist, dividing the survey monitoring subarea with the waterlogging risk marks into a plurality of continuous sections, generating continuous waterlogging signals, closing a confluence channel converging into the continuous sections, and preferentially arranging waterlogging risk time for external operators to check and timely making corresponding measures;
s33, when the waterlogging risk marks carried by the survey monitoring areas are intermittent, intermittent control signals are generated and transmitted to an external display terminal for display;
specifically, different signals are generated according to different waterlogging risk mark arrangement modes, and platform display is carried out for external personnel to check, so that corresponding measures are timely made.
S4, carrying out early warning processing of different levels according to different signals, and timely informing corresponding operators, wherein the early warning of different levels comprises:
s41, when a high waterlogging risk signal is received, an important alarm is generated, and display is carried out to warn outside personnel;
s42, when a continuous waterlogging signal is received, a moderate alarm is generated;
s43, when the intermittent control signal is received, the intermittent control signal is directly displayed in the corresponding display terminal.
The partial data in the formula are all obtained by removing dimension and taking the numerical value for calculation, and the formula is a formula closest to the real situation obtained by simulating a large amount of collected data through software; the preset parameters and the preset threshold values in the formula are set by those skilled in the art according to actual conditions or are obtained through mass data simulation.
The working principle of the invention is as follows: partitioning different water storage areas according to a river port lake area water system arrangement mode, constructing an arrangement chart among a plurality of partitions according to the arrangement mode, confirming the afflux channels of different survey monitoring partitions from the arrangement chart, acquiring rainfall in unit time from monitoring data according to the determined survey monitoring partitions, analyzing the afflux time and the afflux quantity of the afflux channels, and analyzing whether the survey monitoring partitions have waterlogging risks or not;
the method comprises the steps of confirming a subarea with rainfall in advance, confirming rainfall in unit time in the actual rainfall process, analyzing the rainfall according to the confirmed rainfall and the merging time of the former subarea into the subarea, judging whether the residual water storage amount of the subarea is in a reduced state when the merging time arrives, confirming corresponding waterlogging risk time according to the confirmed water flow difference value, generating a corresponding waterlogging risk signal representing that the subarea has waterlogging risk, and binding the subarea, so that the accuracy of waterlogging risk judgment is improved.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (3)
1. The method for analyzing the survey data of the drainage capacity of the river and lake area water system is characterized by comprising the following steps of:
s1, partitioning different water storage areas according to a river port lake area water system arrangement mode, constructing an arrangement chart among a plurality of partitions according to the arrangement mode, and confirming the afflux channels of different survey monitoring partitions from the arrangement chart;
s2, acquiring rainfall in unit time from monitoring data according to the determined survey monitoring subarea, analyzing the afflux time and the afflux amount of the afflux channel, and analyzing whether the survey monitoring subarea has waterlogging risk or not;
s3, receiving and confirming the layout again, confirming and analyzing survey monitoring areas with waterlogging risk marks, generating different signals, and displaying the signals in an external display terminal;
s4, performing early warning processing at different levels according to different signals, and timely informing corresponding operators;
in the step S1, the specific way to confirm the different survey monitoring subareas to merge into the channel is as follows:
s11, confirming a survey monitoring subarea in a rainfall state from the monitoring data, and confirming an afflux channel of the survey monitoring subarea from the layout;
s12, according to the confirmed import channels, confirming the import distances of different import channels, sorting and marking the different import channels according to the arrangement mode of the import distances from small to large, and marking the different import channels as TD i Wherein i represents different afflux channels, and i=1. 2, … …, n, i being 1, represents that the afflux distance of the afflux channel is shortest, and i being n, represents that the afflux distance of the afflux channel is longest;
s13, carrying out next processing on the marked afflux channel and the survey monitoring zone;
in the step S2, a specific way to analyze whether the survey monitoring area has a risk of waterlogging is as follows:
s21, confirming rainfall in unit time from the monitoring data, and marking the rainfall as JY k Where k represents the different survey monitoring zones, and the displacement per unit time of the survey monitoring zone is acquired and labeled PS k ；
S22, when JY k <PS k When the method is used, no treatment is carried out, otherwise, the next treatment is carried out;
s23, confirming a group of import channels closest to the survey monitoring subarea, confirming the distance value of the import channels, and obtaining the import time t1 of the water source inside the import channels imported to the survey monitoring subarea by adopting the distance value/the flow rate = the import time t1;
s24, analyzing and confirming the increment of the water source in the survey monitoring subarea in the remittance time t1, and marking the increment as ZC k And the remaining water storage capacity of the survey monitoring zone is confirmed and marked XS k Using XS k -ZC k ＝SY k Obtaining the final water storage margin SY of the survey monitoring zone k ；
S25, after confirming the afflux time t1, the rainfall in the unit time is marked as YJ, the afflux in the unit time of the afflux channel is confirmed, the afflux is marked as HR, if (YJ+HR) > PS k In which PS is k Monitoring zone displacement per unit time for the present survey using (YJ+HR) -PS k The water volume difference CZ is obtained by =cz and SY is used k ÷CZ＝T k Waterlogging risk time T k The time T of risk of waterlogging k Transmitting the information to an external display end for external personnel to check, and timely making a response measure;
s26, if (YJ+HR) is less than or equal toPS k When the method is used, the next group of the afflux channels are monitored according to the mark i, and then the afflux quantity of the next group of the afflux channels in unit time is confirmed until the total quantity of a plurality of groups of the afflux quantity is larger than PS k And stopping the subsequent afflux channel, prohibiting the water source from afflux, acquiring the corresponding water quantity difference and the corresponding final water storage allowance, adopting the final water storage allowance/the water quantity difference = waterlogging risk time, transmitting the waterlogging risk time to an external display end, and marking a survey monitoring partition where the waterlogging risk is about to occur.
2. The method for analyzing survey data of drainage capacity of river and lake area water according to claim 1, wherein in the step S3, the specific manner of performing the confirmation analysis on the survey monitoring area with the risk mark of waterlogging is as follows:
s31, analyzing whether continuous waterlogging risk marks exist according to the confirmed layout, if continuous waterlogging risk marks exist, analyzing whether a plurality of survey monitoring subareas with the continuous waterlogging risk marks exist in corresponding survey monitoring subareas, and if the continuous waterlogging risk marks exist, generating a high-level waterlogging risk signal and transmitting the high-level waterlogging risk signal to an external display terminal for display;
s32, if the survey monitoring subarea with the waterlogging risk marks does not exist, dividing the survey monitoring subarea with the waterlogging risk marks into a plurality of continuous sections, generating continuous waterlogging signals, closing a confluence channel converging into the continuous sections, and preferentially arranging waterlogging risk time for external operators to check and timely making corresponding measures;
and S33, when the waterlogging risk marks carried by the survey monitoring areas are intermittent, intermittent control signals are generated and transmitted to an external display terminal for display.
3. The method for analyzing the survey data of the drainage capacity of the river port lake district water system according to claim 2, wherein the step S4 of pre-warning of different levels comprises:
s41, when a high waterlogging risk signal is received, an important alarm is generated, and display is carried out to warn outside personnel;
s42, when a continuous waterlogging signal is received, a moderate alarm is generated;
s43, when the intermittent control signal is received, the intermittent control signal is directly displayed in the corresponding display terminal.
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| CN117196302B (en) * | 2023-09-08 | 2024-07-19 | 北京市应急指挥保障中心 | Regional waterlogging risk prediction method and system based on catchment partition |
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