CN114547991B - Urban drainage system planning, designing and optimizing system based on climate change - Google Patents
Urban drainage system planning, designing and optimizing system based on climate change Download PDFInfo
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Abstract
The application discloses a climate change-based urban drainage system planning, designing and optimizing system, which comprises a climate change-based future rainfall scene simulation module, a climate change-based storm intensity calculation module, a climate change-based rainwater pipe network planning, designing and optimizing module, a climate change-based rainwater pipe network planning, designing and scheme model evaluation module, a data storage module and a main controller. The storm intensity parameter in the planning and design of the urban drainage system is a dynamic parameter with time attribute and facing the future; in addition, the service life parameter of the pipe section is newly added in the planning and design of the drainage system, so that the fine planning and design of the urban rainwater pipe network is realized.
Description
Technical Field
The application relates to the technical field of municipal drainage engineering, in particular to a climate change-based urban drainage system planning, designing and optimizing system.
Background
The urban rainwater pipe network system is an important component of municipal infrastructure, and ensures the life and property safety of urban residents and the normal operation of the urban system. With the urban and economic development, the scale and engineering investment of municipal rainwater pipe networks are increasingly huge, and whether the pipe network is reasonable in design often directly influences the performance exertion of the whole drainage system and the investment scale of drainage engineering construction.
The primary basis of the traditional urban rainwater pipe network system planning and design is an urban storm intensity formula and a rain-type design. The basis for traditional urban storm intensity formulation is derived from a multi-year historical rainfall data record of urban weather stations, and the record length is usually longer than 20 years. The urban storm intensity formula compiled by the method only reflects the rainfall characteristics of the past area. Many researches show that the climate characteristics of the areas in China are obviously changed, and the climate extremes are obviously enhanced. In the next few years, the intensity of the urban storm can change obviously, which also leads to the fact that the traditional formula of the intensity of the storm can not reflect the rainfall characteristics of the future city under the weather change background. Urban rainwater pipe network systems are complex and huge municipal infrastructure, and are often served for decades after being built, however, the influence of the future storm intensity change of the city on the future drainage system under the climate change background is not considered in the current urban rainwater pipe network system planning design. Therefore, it is needed to build an optimization system for planning and designing urban drainage systems based on climate change, and the future storm intensity change of the city is brought into the planning and designing of a rainwater pipe network system in the planning and designing process of the urban drainage systems, so that the toughness of the urban drainage systems for coping with the climate change is enhanced, and the urban drainage safety is ensured.
Disclosure of Invention
In order to solve the technical problem that the toughness of the urban drainage system is insufficient when the conventional urban drainage system is planned and designed, the application provides the urban drainage system planning and design optimizing system based on climate change, which brings the effect and influence of the climate change on the urban rainfall intensity into the planning and design of the rainwater pipe network system so as to improve the toughness of the urban drainage system, ensure the urban water safety and make the investment and construction of the urban rainwater pipe network system more reasonable.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
an urban drainage system planning, design and optimization system based on climate change, comprising:
the future rainfall scene simulation module based on climate change is used for acquiring GCM simulation data sets of the latest climate change different scenes of the CMIP as initial value conditions, driving a WRF mode to finely predict climate characteristics in a certain future time period in a simulation range, and acquiring rainfall time sequence data of every 5 minutes in a target city prediction time limit based on simulation results;
the stormwater intensity calculation module based on climate change is used for accumulating precipitation data every 5 minutes according to a target city in the data storage module and deducing a design stormwater intensity calculation formula year by year within future prediction time limit under different climate change conditions;
the rainwater pipe network planning, designing and optimizing module is used for designing storm intensity values year by year according to the climate change background obtained by the storm intensity calculating module and optimizing the implementation scheme of the urban drainage system planning, designing and optimizing the implementation scheme;
the system comprises a weather change-based rainwater pipe network planning design scheme model evaluation module, a target city design rain type, underlying surface data, topography data and a rainwater pipe network planning scheme, wherein the weather change-based rainwater pipe network planning design scheme model evaluation module is used for constructing a pipe network hydrodynamic model of a planning range according to a weather change-based storm intensity value, a target city design rain type, the underlying surface data, the topography data and the rainwater pipe network planning scheme, which are obtained by the storm intensity calculation module, and evaluating whether the rainwater pipe network planning design scheme reaches a planning design target or not;
the data storage module is respectively connected with the future rainfall scene simulation module based on climate change, the storm intensity calculation module based on climate change, the rainwater pipe network planning and design optimization module based on climate change and the rainwater pipe network planning and design model evaluation module based on climate change in a data manner and is used for realizing the storage and data interaction functions of related data;
the main controller is respectively in control connection with a future rainfall scene simulation module based on climate change, a storm intensity calculation module based on climate change, a rainwater pipe network planning and design optimization module based on climate change and a rainwater pipe network planning and design model evaluation module based on climate change, and is used for realizing control interaction with each module.
Further, the future rainfall scene simulation module based on climate change specifically comprises:
the WRF mode meteorological data field data management module is used for selecting a target global meteorological data set according to climate change scene mode selection, atmospheric circulation mode selection, meteorological parameter selection and simulation time limit selection, carrying out data downloading and storage operation management, and providing input meteorological data for driving the WRF mode to operate for the regional climate simulation module, wherein the global meteorological data set comprises a GCM data set of CMIP6 issued by IPCC;
the regional climate simulation module is used for taking the global weather data set obtained by the WRF mode weather data field data management module as an initial weather data field and a boundary weather data field, driving the WRF mode to operate, interpolating the ground weather parameter data and the high-altitude weather parameter data into a simulation region, and performing integration processing step by step forward on a time scale to obtain simulated weather parameter data of the simulation region step by step;
the WRF mode weather simulation data post-processing module is used for realizing a post-processing function of simulation result data of the regional weather simulation module, and comprises WRF simulation data transfer, weather parameter result extraction, statistical analysis of weather parameters according to time and space dimensions, one, two or three-dimensional visual display of weather parameter results, and respectively extracting accumulated precipitation of a step-by-step simulation cloud deep convection process and accumulated precipitation of a non-cloud convection process from the simulation result of the regional weather simulation module, overlapping the accumulated precipitation of the cloud deep convection process and the accumulated precipitation of the non-cloud convection process to obtain step-by-step accumulated precipitation, calculating through a difference value to obtain step-by-step precipitation, and then performing accumulated calculation to obtain accumulated precipitation data for 5 minutes.
Further, the storm intensity calculation module based on climate change specifically comprises:
the stormwater intensity formula deduction module based on climate change is used for realizing that target data are selected according to the rules of IPCC climate change scenes, global climate model selection and simulation years in the 5-minute accumulated precipitation amount data obtained from the data storage module, fitting and error analysis are carried out on the selected simulated rainfall data according to a theoretical frequency distribution curve preset by a system, and a design stormwater intensity calculation formula of the IPCC climate change scenes in the next years is obtained;
and the storm intensity value management module based on climate change is used for calculating the storm intensity value in the future based on IPCC climate change scene, global climate model, year, reproduction period and rainfall duration according to the obtained storm intensity formula, establishing a label for the calculated storm intensity value and carrying out unified management.
Further, the rainwater pipe network planning, designing and optimizing module based on climate change specifically comprises:
the rainwater pipe network planning and designing module based on climate change is used for realizing the optimization design of the rainwater pipe network planning and designing scheme according to the maximum value of the storm intensity of the design corresponding to the design reproduction period, and obtaining the optimized rainwater pipe network planning and designing scheme;
and the rainwater pipe network planning and design scheme management module is used for comprehensively managing the existing rainwater pipe network planning and design scheme.
Further, the rainwater pipe network planning and designing module based on climate change specifically comprises:
the service final year calculation module is used for obtaining the service years of the rainwater pipe network or the pipe section according to the obtained rainwater pipe network planning design scheme, and obtaining the service final year of the pipe network or the pipe section by overlapping the service years on the basis of the design years;
the storm intensity maximum value screening module is used for obtaining the year-by-year design storm intensity from the design year to the final year of the pipe network or pipe section service according to the IPCC climate change scene, the global climate model selection, the year, the reproduction period and the rainfall duration parameters, and screening the design storm intensity maximum value corresponding to the design reproduction period;
the adjusting and optimizing module is used for adjusting and optimizing pipe diameter, gradient, elevation and burial depth of the pipe network or pipe section of the rainwater pipe network planning and designing scheme section by section according to the obtained design storm intensity maximum value corresponding to the design reproduction period;
and the graph drawing module is used for drawing a pipe network plan and a longitudinal section graph to obtain an optimized rainwater pipe network planning design scheme.
Further, the rainwater pipe network planning and design scheme management module is specifically used for:
the method comprises the steps of establishing a rainwater pipe network planning design scheme database and a search engine, setting a hierarchical directory and a label, realizing multidimensional unified management of the rainwater pipe network planning design scheme according to regions, projects, names and scheme versions, and carrying out safety management by giving users different access rights.
Further, the rainwater pipe network planning design scheme model evaluation module based on climate change specifically comprises:
the rainwater pipe network planning design scheme model management module is used for realizing comprehensive management of the rainwater pipe network planning design scheme model;
the model simulation module is used for realizing hydrodynamic analysis on the pipe network drainage capacity of the rainwater pipe network planning design scheme and checking whether the planning design scheme reaches the future rainwater pipe network drainage design target under the climate change.
Further, the rainwater pipe network planning design scheme model management module is specifically used for:
and establishing a rainwater pipe network planning design scheme model library, setting a hierarchical directory and a label, realizing unified management of the rainwater pipe network planning design scheme model according to the multidimensional of areas, projects, names and model versions, and carrying out safety management by giving users different access rights.
Further, the model simulation module for the rainwater pipe network planning design scheme based on the climate change specifically comprises:
the hydrodynamic force simulation model building module is used for building a hydrodynamic force simulation model of the urban rainwater pipe network according to urban basic data and a rainwater pipe network planning design scheme;
the rainfall time sequence data generation module is used for selecting climate change situations, global climate model selection, year, reproduction period and rainfall duration parameters from the climate change-based design storm intensity calculation module, obtaining a storm intensity value and generating rainfall time sequence data by combining the urban storm type;
and the drainage capacity evaluation module is used for executing the urban rainwater pipe network hydrodynamic force simulation model and calculating the section-by-section drainage capacity of the drainage pipe network based on the rainwater pipe network planning design scheme.
Compared with the prior art, the application has the following beneficial effects:
the urban drainage system planning, designing and optimizing system based on climate change can be set according to climate change situations, rainfall characteristic change of cities in the next years is simulated, the obtained annual design storm intensity value based on the climate change background is analyzed, dynamic correction is carried out on the storm intensity corresponding to the existing design standard, the rainwater pipe network planning, designing and optimizing scheme is optimized according to the corrected design storm intensity, and the optimized scheme is simulated and checked by adopting a model. Compared with the prior art, the storm intensity parameter in the planning and design of the urban drainage system is a dynamic parameter with time attribute and facing the future; in addition, the service life parameter of the pipe section is newly added in the planning and design of the drainage system, so that the fine planning and design of the urban rainwater pipe network is realized.
In addition to the objects, features and advantages described above, the present application has other objects, features and advantages. The application will be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic block diagram of a climate change based urban drainage system planning and design optimization system in accordance with a preferred embodiment of the present application.
Fig. 2 is a schematic diagram of sub-modules of a climate change based future rainfall scenario simulation module according to another preferred embodiment of the present application.
Fig. 3 is a schematic diagram of a sub-module of a climate change based stormwater intensity calculation module in accordance with another preferred embodiment of the application.
Fig. 4 is a schematic diagram of a submodule of a climate change based rainwater pipe network planning and design optimization module according to another preferred embodiment of the present application.
Fig. 5 is a schematic view of a sub-module of a climate change based stormwater pipe network planning module in accordance with another preferred embodiment of the application.
Fig. 6 is a schematic diagram of sub-modules of a climate change based rainwater pipe network planning design model evaluation module according to another preferred embodiment of the present application.
Fig. 7 is a schematic diagram of sub-modules of a climate change based rainwater pipe network planning design model simulation module according to another preferred embodiment of the present application.
Description of the embodiments
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In recent years, a numerical simulation technology makes a major breakthrough in the study of climate and weather science, and the use of a computer to simulate and predict the real atmospheric environment and change becomes a main means for studying future climate change, and the technical terms involved include:
global climate mode (Global Climate Model, GCM), also known as circulation mode (General Circulation Model), is currently the main tool for developing global climate change studies. The GCM divides the earth atmosphere into a plurality of coarse grids (the resolution is about 1 ̊ -2.5 ̊ and 100-300 km) in the horizontal direction, divides the atmosphere into tens of layers (1000 hPa-10 hPa) in the vertical direction, simulates an atmospheric circulation process through a series of complex mathematical equations by coupling key processes such as heat energy and substance exchange among the atmosphere, sea, ice and snow and the ground surface. GCM is able to provide reliable climate prediction information over a large spatial scale.
The inter-government climate change specialization committee (the Intergovernmental Panel on Climate Change, IPCC) was an international agency evaluating the science related to climate change, established in 1988 by the World Meteorological Organization (WMO) and the united nations environmental planning agency (UNEP), aiming at regularly providing the decision maker with alternatives for the scientific basis of climate change, its evaluation of impact and future risk, and adaptation and relaxation. The multiple international coupling pattern comparison program (the Coupled Model Intercomparison Project, CMIP) executed by IPCC forms a number of global atmospheric grid simulation datasets over the coming decades in different GCM patterns and various climatic scenarios, which contain rich meteorological parameters, such as isobaric surface meteorological parameter data, ground flux data, etc., capable of reflecting global climate change characteristics in different climatic scenarios. However, GCMs of coarse resolution are not able to carefully characterize the underlying surface and have limited ability to simulate local weather processes and extreme weather climate events.
The dynamic downscaling (Dynamic Downscaling) is a method for obtaining high-resolution weather climate information by using the simulation result of the GCM as a background field to provide a preliminary value condition and driving the numerical integration of the high-resolution regional climate mode (Regional Climate Model, RCM), and is one of important means for obtaining the high-resolution weather climate information of a future region.
WRF (the Weather Research and Forecasting model, weather research and prediction mode) is a new generation of mesoscale meteorological numerical mode system, and is one of the most widely used RCMs at present. Compared with GCM, the WRF mode has a simulation space range far smaller than that of GCM, but a plane grid with higher resolution and a shorter calculation step length can be selected, so that the simulation result is different from the large-scale and coarse-gridding of GCM, and the meteorological features with high resolution (1-10 km) in the target area can be obtained. The WRF simulation result covers hundreds of weather parameters such as isobaric surface weather parameter data, ground flux data and the like, and can meet different requirements.
Referring to fig. 1, a preferred embodiment of the present application provides a system for optimizing urban drainage system planning and design based on climate change, which comprises a future rainfall scenario simulation module based on climate change, a storm intensity calculation module based on climate change, a rainwater pipe network planning and design optimization module based on climate change, a rainwater pipe network planning and design model evaluation module based on climate change, a data storage module and a main controller, wherein:
the future rainfall scene simulation module based on climate change is used for acquiring GCM simulation data sets of the latest climate change different scenes of the CMIP as initial value conditions, driving a WRF mode to finely predict climate characteristics in a certain future time period in a simulation range, and acquiring rainfall time sequence data of every 5 minutes in a target city prediction time limit based on simulation results;
the storm intensity calculation module based on the climate change is used for calculating a design storm intensity calculation formula year by year within the future prediction time limit under different climate change conditions according to the accumulated precipitation data of the target city in the data storage module every 5 minutes;
the rainwater pipe network planning, designing and optimizing module based on climate change is used for designing storm intensity values year by year according to the climate change background obtained by the storm intensity calculating module and optimizing the implementation scheme of the urban drainage system planning, designing and optimizing the implementation scheme;
the model evaluation module of the rainwater pipe network planning design scheme based on the climate change is used for constructing a pipe network hydrodynamic model of a planning range according to the storm intensity value based on the climate change, the target city design rain type, the underlying surface data, the topography data and the rainwater pipe network planning scheme obtained by the storm intensity calculation module, and evaluating whether the rainwater pipe network planning design scheme reaches the planning design target;
the data storage module is respectively connected with a future rainfall scene simulation module based on climate change, a storm intensity calculation module based on climate change, a rainwater pipe network planning and design optimization module based on climate change and a rainwater pipe network planning and design model evaluation module based on climate change in a data connection manner, and is used for realizing the storage and data interaction functions of related data;
the main controller is respectively in control connection with a future rainfall scene simulation module based on climate change, a storm intensity calculation module based on climate change, a rainwater pipe network planning and design optimization module based on climate change and a rainwater pipe network planning and design model evaluation module based on climate change, and is used for realizing control interaction with each module.
The urban drainage system planning, designing and optimizing system based on climate change can be set according to climate change situations, rainfall characteristic changes of cities in the next years are simulated, the obtained annual design storm intensity value based on the climate change background is analyzed, dynamic correction is carried out on the storm intensity corresponding to the existing design standard, a rainwater pipe network planning, designing and scheme is optimized according to the corrected design storm intensity, and simulation checking is carried out on the optimized scheme by adopting a model. Compared with the prior art, the storm intensity parameter in the urban drainage system planning design of the embodiment is a dynamic parameter with time attribute and facing the future; in addition, the service life parameter of the pipe section is newly added in the planning and design of the drainage system, so that the fine planning and design of the urban rainwater pipe network is realized, the toughness of the urban drainage system for coping with climate change is improved, the urban water safety is ensured, and the investment construction of the urban rainwater pipe network system is more reasonable.
As shown in fig. 2, in a preferred embodiment of the present application, the future rainfall scene simulation module based on climate change specifically includes:
the WRF mode meteorological data field data management module is used for selecting a target global meteorological data set according to climate change scene mode selection, atmospheric circulation mode selection, meteorological parameter selection and simulation time limit selection, carrying out data downloading and storage operation management, and providing input meteorological data for driving the WRF mode to operate for the regional climate simulation module, wherein the global meteorological data set comprises a GCM data set of CMIP6 issued by IPCC;
the regional climate simulation module is used for taking the global weather data set obtained by the WRF mode weather data field data management module as an initial weather data field and a boundary weather data field, driving the WRF mode to operate, interpolating the ground weather parameter data and the high-altitude weather parameter data into a simulation region, and gradually performing integral processing forward on a time scale to obtain simulated weather parameter data of the simulation region step by step, wherein compared with the GCMs mode, the regional climate mode of the embodiment has higher horizontal spatial resolution (1-10 km) and can finely describe regional climate change;
the WRF mode weather simulation data post-processing module is used for realizing a post-processing function of simulation result data of the regional weather simulation module, and comprises the steps of WRF simulation data transfer, weather parameter result extraction, statistical analysis of weather parameters according to time and space dimensions, one, two or three-dimensional visual display of weather parameter results, extraction of accumulated precipitation (RAINC) of a simulated cloud deep convection process and accumulated precipitation (RAINNC) of a non-cloud deep convection process step by step (time step) from the simulation result of the regional weather simulation module respectively, superposition of the accumulated precipitation (RAINC) of the cloud deep convection process and the accumulated precipitation (RAINNC) of the non-cloud convection process to obtain accumulated precipitation of step by step, calculation of difference values to obtain accumulated precipitation of step by step, and calculation to obtain accumulated precipitation data of 5 minutes.
In this embodiment, the future rainfall scene simulation module based on climate change specifically includes a WRF mode weather data field data management module, a regional climate simulation module, and a WRF mode weather simulation data post-processing module, and its benefits include that the future rainfall scene simulation module based on climate change integrates analysis flows of WRF mode weather data field data acquisition, model simulation, and simulation results, so that data acquisition and processing efficiency is improved to a certain extent; the method realizes standardized management of meteorological data field data and WRF mode meteorological simulation data, realizes data sharing among different users, and avoids waste of network resources, computing resources and storage resources and time cost caused by repeated downloading of data, repeated running of a model and repeated processing of simulation results.
As shown in fig. 3, in a preferred embodiment of the present application, the stormwater intensity calculating module based on climate change specifically includes:
the stormwater intensity formula deducing module based on climate change is used for realizing 5-minute accumulated precipitation amount data obtained from the data storage module, selecting target data according to the IPCC climate change scene (such as RCP2.6, RCP4.5, RCP6.0, RCP8.5 in CMIP5, SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0, SSP4-3.4, SSP4-6.0, SSP5-3.4, SSP5-8.5 and the like in CMIP 6), selecting global climate model, selecting simulation year rules, selecting target data according to a theoretical frequency distribution curve preset by the system, fitting and performing error analysis on the selected simulation rainfall data, and obtaining a design stormwater intensity calculation formula year by year in the next several years for setting the IPCC climate change scene;
and the storm intensity value management module based on climate change is used for calculating the storm intensity value in the future based on IPCC climate change scene, global climate model, year, reproduction period and rainfall duration according to the obtained storm intensity formula, establishing a label for the calculated storm intensity value and carrying out unified management.
The module for calculating the intensity of the storm based on the climate change in the embodiment comprises a module for calculating the intensity formula of the storm based on the climate change and a module for managing the intensity value of the storm based on the climate change, and the module has the following benefits: the storm intensity calculation module based on climate change integrates various storm intensity formula calculation algorithms and standardized management of storm intensity values, is convenient for users to realize comparison and analysis of different storm intensity formulas and storm intensity values, realizes integrated sharing of the storm intensity formulas and the storm intensity values, and effectively avoids resource waste and time cost caused by repeated calculation of the storm intensity formulas and repeated storage of the storm intensity values.
As shown in fig. 4, in a preferred embodiment of the present application, the rainwater pipe network planning, design and optimization module based on climate change specifically includes:
the rainwater pipe network planning and designing module based on climate change is used for realizing the optimization design of the rainwater pipe network planning and designing scheme according to the maximum value of the storm intensity of the design corresponding to the design reproduction period, and obtaining the optimized rainwater pipe network planning and designing scheme;
and the rainwater pipe network planning and design scheme management module is used for comprehensively managing the existing rainwater pipe network planning and design scheme.
The rainwater pipe network planning and design optimizing module based on the climate change in the embodiment comprises a rainwater pipe network planning and design module based on the climate change and a rainwater pipe network planning and design scheme management module, and the rainwater pipe network planning and design optimizing module based on the climate change has the following benefits: the rainwater pipe network planning, design and optimization module based on climate change integrates optimization operation of planning, design and scheme standardization management, and is convenient for users to compare, optimize and adjust different schemes and share schemes.
As shown in fig. 5, in a preferred embodiment of the present application, the rainwater pipe network planning and designing module based on climate change specifically includes:
the service final year calculation module is used for obtaining the service years of the rainwater pipe network or the pipe section according to the obtained rainwater pipe network planning design scheme, and obtaining the service final year of the pipe network or the pipe section by overlapping the service years on the basis of the design years;
the storm intensity maximum value screening module is used for obtaining the year-by-year design storm intensity from the design year to the final year of the pipe network or pipe section service according to the IPCC climate change scene, the global climate model selection, the year, the reproduction period and the rainfall duration parameters, and screening the design storm intensity maximum value;
the adjusting and optimizing module is used for adjusting and optimizing pipe diameter, gradient, elevation and burial depth of the pipe network or pipe section of the rainwater pipe network planning and designing scheme section by section according to the obtained design storm intensity maximum value corresponding to the design reproduction period;
and the graph drawing module is used for drawing a pipe network plan and a longitudinal section graph to obtain an optimized rainwater pipe network planning design scheme.
The rainwater pipe network planning and design module based on climate change of the embodiment comprises a service final year calculation module, a stormwater intensity maximum value screening module, an adjustment and optimization module and a graph drawing module, and has the following advantages: the rainwater pipe network planning and design module based on climate change integrates the whole flow of rainwater pipe network planning, design and optimization, realizes the integrated operation of rainwater pipe network planning, design and optimization, realizes the visual display of the optimization result, and improves the working efficiency of users.
Specifically, in the preferred embodiment of the present application, the rainwater pipe network planning and design scheme management module is specifically configured to:
the method comprises the steps of establishing a rainwater pipe network planning design scheme database and a search engine, setting a hierarchical directory and a label, realizing multidimensional unified management of the rainwater pipe network planning design scheme according to regions, projects, names and scheme versions, and carrying out safety management by giving users different access rights, so that scientific, efficient and safe management of the rainwater pipe network planning design scheme is realized.
As shown in fig. 6, in a preferred embodiment of the present application, the model evaluation module for a rainwater pipe network planning design scheme based on climate change specifically includes:
the rainwater pipe network planning design scheme model management module is used for realizing comprehensive management of the rainwater pipe network planning design scheme model;
the model simulation module is used for realizing hydrodynamic analysis on the pipe network drainage capacity of the rainwater pipe network planning design scheme and checking whether the planning design scheme reaches the future rainwater pipe network drainage design target under the climate change.
In this embodiment, the model evaluation module for the rainwater pipe network planning and design scheme based on the climate change includes a model management module for the rainwater pipe network planning and design scheme, and a model simulation module for the rainwater pipe network planning and design scheme based on the climate change, and the benefits include: the model evaluation module of the rainwater pipe network planning design scheme based on climate change integrates the functions of model management and model simulation, and on one hand, a user can quickly select an established model to implement model simulation; on the other hand, the user can conveniently select the existing model, modify the existing model on the basis of the existing model, build a new model, and avoid the time cost caused by repeated model building, calibration and verification; and sharing of model achievements is realized.
Specifically, in a preferred embodiment of the present application, the rainwater pipe network planning design scheme model management module is specifically configured to:
the method comprises the steps of establishing a rainwater pipe network planning design scheme model library, setting a hierarchical directory and a label, realizing unified management of the rainwater pipe network planning design scheme model according to the multidimensional of areas, projects, names and model versions, and carrying out safety management by giving users different access rights, so that scientific, efficient and safe management of the rainwater pipe network planning design scheme model is realized.
As shown in fig. 7, in a preferred embodiment of the present application, the model simulation module for a rainwater pipe network planning design scheme based on climate change specifically includes:
the hydrodynamic force simulation model building module is used for building a hydrodynamic force simulation model of the urban rainwater pipe network according to urban basic data and a rainwater pipe network planning design scheme;
the rainfall time sequence data forming module is used for selecting climate change situations, global climate model selection, year, reproduction period and rainfall duration parameters from the climate change-based design storm intensity calculation module, obtaining a storm intensity value and generating rainfall time sequence data by combining the urban storm type;
and the drainage capacity evaluation module is used for executing the urban rainwater pipe network hydrodynamic force simulation model and calculating the section-by-section drainage capacity of the drainage pipe network based on the rainwater pipe network planning design scheme.
In this embodiment, the model simulation module for the rainwater pipe network planning design scheme based on climate change includes a hydrodynamic simulation model establishment module, a rainfall time sequence data generation module, and a drainage capacity evaluation module, and the benefits include: the model simulation module of the rainwater pipe network planning design scheme based on climate change integrates model construction, processing and loading of model driving data and model result analysis, realizes model full-flow integrated operation based on the rainwater pipe network planning design scheme, and improves the working efficiency of users.
In summary, the urban drainage system planning and design optimizing system based on climate change provided by the embodiment brings the dynamic change of the future urban rainfall intensity under the influence of the climate change into the planning and design of the rainwater pipe network system, so that the toughness of the urban drainage pipe network for coping with the climate change is improved, the future urban water safety is ensured, and the construction investment of the urban rainwater pipe network system is reasonably optimized.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the application are intended to be included within the scope of the application.
Claims (9)
1. Urban drainage system planning design optimizing system based on climate change, characterized by comprising:
the future rainfall scene simulation module based on climate change is used for acquiring GCM simulation data sets of the latest climate change different scenes of the CMIP as initial value conditions, driving a WRF mode to finely predict climate characteristics in a certain future time period in a simulation range, and acquiring rainfall time sequence data of every 5 minutes in a target city prediction time limit based on simulation results;
the stormwater intensity calculation module based on climate change is used for accumulating precipitation data every 5 minutes according to a target city in the data storage module and deducing a design stormwater intensity calculation formula year by year within future prediction time limit under different climate change conditions;
the rainwater pipe network planning, designing and optimizing module is used for designing storm intensity values year by year according to the climate change background obtained by the storm intensity calculating module and optimizing the implementation scheme of the urban drainage system planning, designing and optimizing the implementation scheme;
the system comprises a weather change-based rainwater pipe network planning design scheme model evaluation module, a target city design rain type, underlying surface data, topography data and a rainwater pipe network planning scheme, wherein the weather change-based rainwater pipe network planning design scheme model evaluation module is used for constructing a pipe network hydrodynamic model of a planning range according to a weather change-based storm intensity value, a target city design rain type, the underlying surface data, the topography data and the rainwater pipe network planning scheme, which are obtained by the storm intensity calculation module, and evaluating whether the rainwater pipe network planning design scheme reaches a planning design target or not;
the data storage module is respectively connected with the future rainfall scene simulation module based on climate change, the storm intensity calculation module based on climate change, the rainwater pipe network planning and design optimization module based on climate change and the rainwater pipe network planning and design model evaluation module based on climate change in a data manner and is used for realizing the storage and data interaction functions of related data;
the main controller is respectively in control connection with a future rainfall scene simulation module based on climate change, a storm intensity calculation module based on climate change, a rainwater pipe network planning and design optimization module based on climate change and a rainwater pipe network planning and design model evaluation module based on climate change, and is used for realizing control interaction with each module.
2. The climate change-based urban drainage system planning and design optimization system according to claim 1, wherein the climate change-based future rainfall scenario simulation module specifically comprises:
the WRF mode meteorological data field data management module is used for selecting a target global meteorological data set according to climate change scene mode selection, atmospheric circulation mode selection, meteorological parameter selection and simulation time limit selection, carrying out data downloading and storage operation management, and providing input meteorological data for driving the WRF mode to operate for the regional climate simulation module, wherein the global meteorological data set comprises a GCM data set of CMIP6 issued by IPCC;
the regional climate simulation module is used for taking the global weather data set obtained by the WRF mode weather data field data management module as an initial weather data field and a boundary weather data field, driving the WRF mode to operate, interpolating the ground weather parameter data and the high-altitude weather parameter data into a simulation region, and performing integration processing step by step forward on a time scale to obtain simulated weather parameter data of the simulation region step by step;
the WRF mode weather simulation data post-processing module is used for realizing a post-processing function of simulation result data of the regional weather simulation module, and comprises WRF simulation data transfer, weather parameter result extraction, statistical analysis of weather parameters according to time and space dimensions, one, two or three-dimensional visual display of weather parameter results, and respectively extracting accumulated precipitation of a step-by-step simulation cloud deep convection process and accumulated precipitation of a non-cloud convection process from the simulation result of the regional weather simulation module, overlapping the accumulated precipitation of the cloud deep convection process and the accumulated precipitation of the non-cloud convection process to obtain step-by-step accumulated precipitation, calculating through a difference value to obtain step-by-step precipitation, and then performing accumulated calculation to obtain accumulated precipitation data for 5 minutes.
3. The climate change-based urban drainage system planning and design optimization system according to claim 1, wherein the climate change-based stormwater intensity calculation module specifically comprises:
the stormwater intensity formula deduction module based on climate change is used for realizing that target data are selected according to the rules of IPCC climate change scenes, global climate model selection and simulation years in the 5-minute accumulated precipitation amount data obtained from the data storage module, fitting and error analysis are carried out on the selected simulated rainfall data according to a theoretical frequency distribution curve preset by a system, and a design stormwater intensity calculation formula of the IPCC climate change scenes in the next years is obtained;
and the storm intensity value management module based on climate change is used for calculating the storm intensity value in the future based on IPCC climate change scene, global climate model, year, reproduction period and rainfall duration according to the obtained storm intensity formula, establishing a label for the calculated storm intensity value and carrying out unified management.
4. The climate change-based urban drainage system planning and design optimization system according to claim 1, wherein the climate change-based rainwater pipe network planning and design optimization module specifically comprises:
the rainwater pipe network planning and designing module based on climate change is used for realizing the optimization design of the rainwater pipe network planning and designing scheme according to the maximum value of the storm intensity of the design corresponding to the design reproduction period, and obtaining the optimized rainwater pipe network planning and designing scheme;
and the rainwater pipe network planning and design scheme management module is used for comprehensively managing the existing rainwater pipe network planning and design scheme.
5. The climate change-based urban drainage system planning and design optimization system according to claim 4, wherein the climate change-based rainwater pipe network planning and design module specifically comprises:
the service final year calculation module is used for obtaining the service years of the rainwater pipe network or the pipe section according to the obtained rainwater pipe network planning design scheme, and obtaining the service final year of the pipe network or the pipe section by overlapping the service years on the basis of the design years;
the storm intensity maximum value screening module is used for obtaining the year-by-year design storm intensity from the design year to the final year of the pipe network or pipe section service according to the IPCC climate change scene, the global climate model selection, the year, the reproduction period and the rainfall duration parameters, and screening the design storm intensity maximum value corresponding to the design reproduction period;
the adjusting and optimizing module is used for adjusting and optimizing pipe diameter, gradient, elevation and burial depth of the pipe network or pipe section of the rainwater pipe network planning and designing scheme section by section according to the obtained design storm intensity maximum value corresponding to the design reproduction period;
and the graph drawing module is used for drawing a pipe network plan and a longitudinal section graph to obtain an optimized rainwater pipe network planning design scheme.
6. The climate change-based urban drainage system planning and design optimization system according to claim 4, wherein the rainwater pipe network planning and design scheme management module is specifically configured to:
the method comprises the steps of establishing a rainwater pipe network planning design scheme database and a search engine, setting a hierarchical directory and a label, realizing multidimensional unified management of the rainwater pipe network planning design scheme according to regions, projects, names and scheme versions, and carrying out safety management by giving users different access rights.
7. The climate change-based urban drainage system planning and design optimization system according to claim 1, wherein the climate change-based rainwater pipe network planning and design model evaluation module specifically comprises:
the rainwater pipe network planning design scheme model management module is used for realizing comprehensive management of the rainwater pipe network planning design scheme model;
the model simulation module is used for realizing hydrodynamic analysis on the pipe network drainage capacity of the rainwater pipe network planning design scheme and checking whether the planning design scheme reaches the future rainwater pipe network drainage design target under the climate change.
8. The climate change-based urban drainage system planning and design optimization system according to claim 7, wherein the rainwater pipe network planning and design model management module is specifically configured to:
and establishing a rainwater pipe network planning design scheme model library, setting a hierarchical directory and a label, realizing unified management of the rainwater pipe network planning design scheme model according to the multidimensional of areas, projects, names and model versions, and carrying out safety management by giving users different access rights.
9. The climate change-based urban drainage system planning and design optimization system according to claim 7, wherein the climate change-based rainwater pipe network planning and design model simulation module specifically comprises:
the hydrodynamic force simulation model building module is used for building a hydrodynamic force simulation model of the urban rainwater pipe network according to urban basic data and a rainwater pipe network planning design scheme;
the rainfall time sequence data generation module is used for selecting climate change situations, global climate model selection, year, reproduction period and rainfall duration parameters from the climate change-based design storm intensity calculation module, obtaining a storm intensity value and generating rainfall time sequence data by combining the urban storm type;
and the drainage capacity evaluation module is used for executing the urban rainwater pipe network hydrodynamic force simulation model and calculating the section-by-section drainage capacity of the drainage pipe network based on the rainwater pipe network planning design scheme.
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| CN108846501A (en) * | 2018-04-26 | 2018-11-20 | 北京建筑大学 | A kind of low influence development facility construction scale of rainwater determines method |
| CN111898911A (en) * | 2020-07-31 | 2020-11-06 | 上海市水务规划设计研究院(上海市海洋规划设计研究院) | Drainage waterlogging prevention emergency scheme design system |
| CN113821939A (en) * | 2021-11-22 | 2021-12-21 | 中机国际工程设计研究院有限责任公司 | Urban rainstorm intensity calculation method, system, equipment and storage medium based on space-time distribution characteristics |
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| CN108133283A (en) * | 2017-12-11 | 2018-06-08 | 中国水利水电科学研究院 | Urban water system and the joint response regulation and control method of energy resource system reply climate change |
| CN108846501A (en) * | 2018-04-26 | 2018-11-20 | 北京建筑大学 | A kind of low influence development facility construction scale of rainwater determines method |
| CN111898911A (en) * | 2020-07-31 | 2020-11-06 | 上海市水务规划设计研究院(上海市海洋规划设计研究院) | Drainage waterlogging prevention emergency scheme design system |
| CN113821939A (en) * | 2021-11-22 | 2021-12-21 | 中机国际工程设计研究院有限责任公司 | Urban rainstorm intensity calculation method, system, equipment and storage medium based on space-time distribution characteristics |
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