CN118171381A

CN118171381A - Terrain construction method and system based on sponge city design

Info

Publication number: CN118171381A
Application number: CN202410609267.4A
Authority: CN
Inventors: 徐辉; 汪艳; 黄兢祥; 冯运遥; 缪一涵; 周靖媛
Original assignee: Shenzhen Qiyang Special Equipment Technology Engineering Co ltd
Current assignee: Shenzhen Qiyang Special Equipment Technology Engineering Co ltd
Priority date: 2024-05-16
Filing date: 2024-05-16
Publication date: 2024-06-11
Anticipated expiration: 2044-05-16

Abstract

The invention relates to a terrain construction method based on sponge city design, which comprises the following steps: collecting current situation data of the sponge city to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city; performing terrain adjustment on a target design scheme of the sponge city to obtain a first terrain adjustment scheme; performing benefit analysis on the first terrain adjustment scheme to obtain a benefit analysis result, and comparing the benefit analysis result to obtain an initial benefit scheme; optimizing the first terrain adjustment scheme to obtain a final design scheme of the sponge city; carrying out rainwater simulation calculation on the final design scheme of the sponge city to obtain the simulated collection quantity of rainwater; if the difference value between the collection amount of the rainwater and the simulation collection amount of the rainwater is not in the preset range, the final design scheme is adjusted, and the optimal adjustment scheme is obtained. Through optimizing the topography design, the water permeability of urban ground surface is enhanced, and the rainwater runoff is reduced.

Description

Terrain construction method and system based on sponge city design

Technical Field

The invention relates to the technical field of urban planning, in particular to a terrain construction method, system, equipment and storage medium based on sponge urban design.

Background

With the rapid development of urban mass, the increase of the surface area of the hard texture leads to the increase of urban rainwater runoff, and further leads to the increase of the occurrence frequency and intensity of urban flood disasters. This problem greatly threatens the safety and development of cities. The concept of sponge city has been developed, and the core concept is to reduce urban flood disasters by enhancing the water permeability of the urban ground surface and the absorption and storage capacity of rainwater, and promote the natural balance of urban water circulation.

The existing problems are how to improve the adaptability and toughness of the city to the rainwater event by terrain adjustment, formulation of a high-efficiency rainwater utilization scheme, ensuring the accuracy of a simulation calculation result and ensuring the dynamic adjustment and optimization capability of a design scheme.

Disclosure of Invention

The invention mainly aims to provide a topography construction method, a system, equipment and a storage medium based on sponge city design, which enhance the water permeability of the city surface and reduce the rainfall runoff by optimizing the topography design.

In order to achieve the above purpose, the invention provides a terrain construction method based on sponge city design, which comprises the following steps:

Collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city;

Performing terrain adjustment on a target design scheme of the sponge city by utilizing a digital terrain model to obtain a plurality of first terrain adjustment schemes; the first terrain adjustment scheme is used for improving rainwater penetration and increasing rainwater collection efficiency;

Performing benefit analysis on each first terrain adjustment scheme by utilizing a rainwater control model to obtain a plurality of benefit analysis results, and comparing each benefit analysis result to obtain each initial benefit scheme;

based on each initial benefit scheme, optimally designing each first terrain adjustment scheme to obtain a final design scheme of the sponge city;

Performing rainwater simulation calculation on the final design scheme of the sponge city through a computer simulation technology to obtain a simulation collection amount of rainwater;

And acquiring the collection amount of the rainwater, monitoring the collection amount of the rainwater, and if the difference value between the collection amount of the rainwater and the simulation collection amount of the rainwater is not in a preset range, adjusting the final design scheme to obtain an optimal adjustment scheme.

As a further scheme of the invention, the current status data of the sponge city comprises terrain parameters, soil parameters, hydrological parameters and vegetation parameters, and the analysis result of the sponge city comprises waterlogged areas of the sponge city, the degree of groundwater level drop and the degree of water pollution; the method comprises the steps of collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city, comprising:

collecting historical topography parameters, historical soil parameters, historical hydrologic parameters and historical vegetation parameters of a sponge city, and constructing an analysis model based on the historical topography parameters, the historical soil parameters, the historical hydrologic parameters and the historical vegetation parameters;

Inputting the terrain parameters, the soil parameters, the hydrologic parameters and the vegetation parameters into a preset analysis model for parameter calculation to obtain parameter calculation data of the sponge city;

analyzing the topography of the sponge city based on the parameter calculation data of the sponge city to obtain an analysis result of the sponge city;

Acquiring constraint condition data; the constraint condition data comprise land conditions, cost conditions, runoff control conditions and water conservancy conditions;

If the analysis result of the sponge city meets the constraint condition data, determining a target design scheme of the sponge city based on the analysis result of the sponge city.

As a further aspect of the present invention, a method for performing terrain adjustment on a target design of a sponge city using a digital terrain model to obtain a plurality of first terrain adjustment schemes includes:

Acquiring the topography of the sponge city based on the target design scheme of the sponge city, and inputting the topography of the sponge city into a preset digital topography model for topography feature extraction to obtain topography features of the sponge city;

obtaining key topographic features of the sponge city based on the topographic features of the sponge city;

Performing terrain adjustment of different dimensions on the target design scheme of the sponge city based on the key terrain features of the sponge city to obtain a plurality of initial terrain adjustment schemes;

Carrying out rainwater penetration evaluation on each initial topography adjustment scheme to obtain a corresponding rainwater penetration evaluation result;

Carrying out rainwater collection efficiency evaluation on each initial terrain adjustment scheme to obtain a corresponding rainwater collection efficiency evaluation result;

Carrying out fusion analysis on each rainwater penetration evaluation result and each rainwater collection efficiency evaluation result to obtain a plurality of initial evaluation results; and comparing and sequencing the schemes among the plurality of initial evaluation results to obtain a plurality of first terrain adjustment schemes.

As a further aspect of the present invention, a plurality of first terrain adjustment schemes are benefit-analyzed using a rainwater control model to obtain a plurality of benefit-analysis results, and the plurality of benefit-analysis results are compared to obtain each initial benefit scheme, including:

performing coding processing on a plurality of first terrain adjustment schemes to obtain each coding adjustment scheme;

performing benefit analysis on each coding adjustment scheme by utilizing a rainwater control model to obtain a corresponding primary benefit analysis result;

vector conversion is carried out on each preliminary benefit analysis result to obtain a vector of a corresponding preliminary benefit analysis result, and a matrix of the corresponding preliminary benefit analysis result is obtained based on the vector of each preliminary benefit analysis result;

performing one-to-one mapping treatment on the matrixes of the preliminary benefit analysis results to obtain corresponding matrixes of the mapping benefit analysis results;

And comparing the matrixes of the mapping benefit analysis results to obtain each initial benefit scheme.

As a further aspect of the present invention, the optimizing design of each of the first terrain adjustment schemes based on each of the initial benefit schemes, to obtain a final design scheme of the sponge city, includes:

Based on each initial benefit scheme, evaluating each first terrain adjustment scheme through a preprocessing module to obtain each evaluation initial scheme, and performing vector conversion on each evaluation initial scheme to obtain a vector of each evaluation initial scheme;

The cosine values of the expected benefit schemes are obtained, the vectors of all the evaluation initial schemes are calculated by using the preset cosine similarity, and the similarity values of all the evaluation initial schemes are obtained; calculating the difference value between the similarity value of each evaluation initial scheme and the cosine value of the expected benefit scheme one by one to obtain the difference value of each evaluation initial scheme; wherein the similarity value of each of the estimated initial protocols is between-1 and 1;

Sorting the differences of each evaluation initial scheme from small to large to obtain a difference sorting result; wherein, the evaluation initial scheme corresponding to the minimum difference value in the difference value sequencing result is the optimal benefit scheme;

And carrying out optimal design on each first terrain adjustment scheme based on the optimal benefit scheme to obtain a final design scheme of the sponge city.

As a further scheme of the invention, the final design scheme of the sponge city is subjected to rainwater simulation calculation by a computer simulation technology to obtain the simulated collection amount of rainwater, and the method comprises the following steps:

Acquiring simulated scene data and simulated scene images; the method comprises the steps that simulated scene data and simulated scene images are obtained, wherein the simulated scene data and the simulated scene images comprise geographic positions, climate characteristics and historical rainfall records of sponge cities;

Based on the simulation scene data, simulating and calculating a final design scheme of the sponge city by a computer simulation technology to obtain rainwater simulation data; the rainwater simulation data comprise rainwater simulation flow, rainwater simulation flow velocity and rainwater simulation concentration;

obtaining a simulated collection amount of rainwater based on the simulated rainwater flow, the simulated rainwater flow rate and the simulated rainwater concentration;

The simulated collection of rainwater was calculated using the following formula:

；

Wherein the said Is in the geographic position/>, of sponge cityAnd a rain simulation flow rate at time t; /(I)Is a constant related to surface roughness and soil permeability,/>Representing a high gradient, the representation being a vector,/>Is the height of collecting rainwater,/>Is in the geographic position/>, of sponge cityAnd the rain simulation concentration at time t,/>Is the initial concentration,/>Is a rainwater collecting area,/>Is the decay constant,/>Is the period of time of the rainfall event,Is the efficiency of collecting rainwater in a rainwater collecting place,/>Is in the geographic position/>, of sponge cityAnd time t, rain simulation flow,/>Is the simulated collection of rainwater.

As a further aspect of the present invention, a method for obtaining a collection amount of rainwater, and monitoring the collection amount of rainwater, and if a difference between the collection amount of rainwater and a simulated collection amount of rainwater is not within a preset range, adjusting the final design scheme to obtain an optimal adjustment scheme, includes:

Acquiring historical weather data of a sponge city and a geographical position for rainwater collection, and acquiring the collection amount of rainwater based on the historical weather data of the sponge city and the geographical position for rainwater collection; monitoring the collection amount of the rainwater;

performing difference calculation on the rainwater collection amount and the rainwater simulation collection amount, and if the difference is not in a preset range, performing difference feature extraction on a final design scheme of the sponge city to obtain a difference feature factor;

Acquiring equipment execution data and equipment maintenance data, and carrying out comprehensive problem division on the equipment execution data, the equipment maintenance data and the difference characteristic factors to obtain a problem division result;

And adjusting the problem division result through an adjustment scheme corresponding to the problem division result to obtain an adjustment scheme, and inputting the adjustment scheme into a preset feedback model to continuously perfect the adjustment scheme so as to obtain an optimal adjustment scheme.

The invention also provides a terrain construction system based on sponge city design, which comprises:

The collecting module is used for collecting current situation data of the sponge city and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city;

The adjusting module is used for carrying out terrain adjustment on the target design scheme of the sponge city by utilizing the digital terrain model to obtain a plurality of first terrain adjustment schemes; the first terrain adjustment scheme is used for improving rainwater penetration and increasing rainwater collection efficiency;

The analysis module is used for carrying out benefit analysis on each first terrain adjustment scheme by utilizing the rainwater control model to obtain a plurality of benefit analysis results, and comparing each benefit analysis result to obtain each initial benefit scheme;

The optimizing module is used for optimizing and designing each first terrain adjustment scheme based on each initial benefit scheme to obtain a final design scheme of the sponge city;

The calculation module is used for carrying out rainwater simulation calculation on the final design scheme of the sponge city through a computer simulation technology to obtain the simulated collection quantity of rainwater;

The judging module is used for acquiring the collection amount of the rainwater, monitoring the collection amount of the rainwater, and adjusting the final design scheme to obtain an optimal adjustment scheme if the difference value between the collection amount of the rainwater and the simulation collection amount of the rainwater is not in a preset range.

The invention also provides a computer device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of any of the methods described above when the computer program is executed.

The invention also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of any of the preceding claims.

The invention provides a terrain construction method based on sponge city design, which comprises the following steps: collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city; performing terrain adjustment on a target design scheme of the sponge city by utilizing a digital terrain model to obtain a plurality of first terrain adjustment schemes; the first terrain adjustment scheme is used for improving rainwater penetration and increasing rainwater collection efficiency; performing benefit analysis on the plurality of first terrain adjustment schemes by utilizing a rainwater control model to obtain a plurality of benefit analysis results, and comparing the plurality of benefit analysis results to obtain an optimal benefit scheme; based on the optimal benefit scheme, optimally designing the first terrain adjustment scheme to obtain a final design scheme of the sponge city; performing rainwater simulation calculation on the final design scheme of the sponge city through a computer simulation technology to obtain a simulation collection amount of rainwater; and if the difference value between the collection amount of the rainwater and the simulation collection amount of the rainwater is not within the preset range, the final design scheme is adjusted, and the rainwater management and flood disaster prevention mechanism is effectively solved by optimizing the terrain design, so that the water permeability of the urban surface is enhanced, the rainwater runoff is reduced, and the risk and influence of flood are reduced.

Drawings

FIG. 1 is a schematic diagram of steps of a terrain construction method based on sponge city design in accordance with an embodiment of the present invention;

FIG. 2 is a block diagram of a terrain construction system based on a sponge city design in accordance with one embodiment of the present invention;

fig. 3 is a block diagram schematically illustrating a structure of a computer device according to an embodiment of the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating steps of a terrain construction method based on a sponge city design according to an embodiment of the present invention;

The embodiment of the invention provides a terrain construction method based on sponge city design, which comprises the following steps:

Step S1, collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; and determining a target design scheme of the sponge city based on the analysis result of the sponge city.

Specifically, detailed data of the current topography, hydrology, land utilization, infrastructure and the like of the sponge city is collected. Including the height, grade of the terrain, existing drainage systems, greenbelts, roads, etc. The collected data is analyzed comprehensively using digital terrain models and other Geographic Information System (GIS) tools. The efficiency of the current topography in terms of rainwater management and the existing problems such as areas easy to accumulate water, places with unsmooth drainage and the like are evaluated. And (5) based on the analysis result, formulating a target design scheme of the sponge city. Including re-planning drainage systems, increasing greenbelts and water penetration areas, adjusting terrain to promote rain penetration and collection, etc. According to the target design scheme, specific terrain adjustment measures are designed. Relates to changing the height of the terrain, creating an artificial wetland, building rainwater collection and infiltration facilities and the like. And simulating by using a digital terrain model, and predicting the flowing and accumulating conditions of the rainwater after the terrain adjustment. And adjusting the scheme according to the simulation result so as to ensure the optimal rainwater management effect. And carrying out terrain adjustment and related facility construction according to the final design scheme. After implementation, in-situ monitoring is performed to assess the effectiveness of rain management and adjustments are made as needed.

The following technical effects can be obtained through the steps: through reasonable topography adjustment, increase the effective infiltration and the collection of rainwater, reduce the risk of urban flood disaster. The combination of terrain adjustment and green infrastructure can provide more greenbelt and ecological space, enhancing the restoration of urban ecosystem. The addition of green land and water can regulate city temperature, improve air quality and create more suitable environment for city residents. By promoting rainwater penetration, the supply of groundwater and the maintenance of water circulation are facilitated. The improved rainwater management system can reduce economic losses caused by urban flood disasters, and meanwhile, the sustainability of cities and the life quality of residents are improved. In conclusion, the digital terrain model is utilized to carry out the terrain adjustment of the target design scheme of the sponge city, so that the rainwater management efficiency can be effectively improved, and obvious environmental, social and economic benefits can be brought.

S2, performing terrain adjustment on a target design scheme of the sponge city by using a digital terrain model to obtain a plurality of first terrain adjustment schemes; wherein, first topography adjustment scheme is used for promoting rainwater infiltration and increasing the collection efficiency of rainwater.

Specifically, high-precision topographic data of the target area is collected, including information such as altitude, gradient, and the like. The data is analyzed by a Geographic Information System (GIS) or similar tool to identify the problem areas in the existing terrain that lead to rain accumulation or drainage. And simulating the rainwater flow direction by using a digital terrain model, and analyzing the aggregation point and the flow path of the water flow. Helping to determine the critical locations where terrain adjustments are needed and to create stormwater collection and infiltration facilities. And designing a first terrain adjustment scheme according to the analysis result. Including lowering or raising the ground level in certain areas, creating or enlarging depressions to increase the rainwater collection area, building gentle slopes to promote rainwater penetration into the collection area, etc. On the basis of terrain adjustment, rainwater collection and infiltration facilities such as a percolating well, a rainwater garden, an infiltration trench and the like are integrated to further increase infiltration and collection of rainwater. And (3) simulating by using the adjusted terrain model, and evaluating the rainwater management effect, including rainwater penetration, collection and flow direction. And further adjusting the terrain design scheme according to the simulation result until the optimal effect is achieved. And carrying out terrain adjustment and rainwater facility construction according to the final design scheme. After the engineering is completed, field monitoring is performed to verify whether the rainwater management effect meets the expectations.

The following technical effects can be obtained through the steps: through optimizing the topography design, increase the effective collection and the infiltration of rainwater, reduce the rainfall runoff, improve the utilization efficiency of rainwater resource. By effectively managing the rainwater flow direction and increasing the rainwater penetration area, the flood peak flow and frequency are reduced, and the flood risk is reduced. The increase of the rainwater permeability is beneficial to the groundwater supply, improves the condition of groundwater resources, and plays an important role in relieving regional drought and improving the sustainability of water resources. Through topography adjustment and rainwater management measures, more green spaces and ecological facilities can be brought to the city, the urban ecological environment is improved, and the life quality of urban residents is improved. In summary, the digital terrain model is utilized to regulate the terrain of the sponge city, so that not only can the rainwater management efficiency be improved, but also the sponge city has wide positive influence on the environment and the social economy.

And S3, performing benefit analysis on each first terrain adjustment scheme by utilizing a rainwater control model to obtain a plurality of benefit analysis results, and comparing each benefit analysis result to obtain each initial benefit scheme.

Specifically, a proper rainwater control model is selected or developed according to the specific conditions (including terrain, land utilization, climate conditions and the like) of the sponge city. The rainwater management model should be able to simulate the flow, collection, penetration and evaporation processes of rainwater in various weather conditions. The rainwater control model inputs specific parameters of a terrain adjustment scheme, including terrain change, newly-added rainwater collection and infiltration facilities and the like. And if necessary, calibrating the rainwater control model to ensure the accuracy of the prediction result. And (3) running a model for each terrain adjustment scheme, and analyzing the performance of the model under different rainfall conditions. The indicators of interest include rainwater collection amount, penetration amount, reduced runoff amount, and the like. And comparing and analyzing the model benefit results of all terrain adjustment schemes. Their performance in terms of improving rainwater utilization efficiency, reducing flood risk, enhancing groundwater replenishment, etc. was evaluated. Based on the benefit analysis result, a plurality of terrain adjustment schemes with the best performance are screened as preliminary benefit schemes. Further screening and optimizing are carried out by considering factors such as cost, implementation difficulty, sustainability and the like.

The following technical effects can be obtained through the steps: by contrast analysis, the terrain adjustment schemes capable of maximizing rainwater collection and infiltration capacity can be selected, and the rainwater utilization efficiency of cities is improved.

Accurate rainwater control model analysis is helpful for identifying and implementing an optimal terrain adjustment scheme, so that flood risks of cities under extreme rainfall events are effectively reduced. By optimizing rainwater management, runoff pollution is reduced, groundwater supply is promoted, and the sustainability of urban environment is enhanced. Benefit analysis is helpful for ensuring that investment is concentrated on the scheme with highest return, avoiding resource waste and realizing economic benefit maximization. The comprehensive benefit analysis results provide scientific basis for decision makers and enable judicious selection among multiple alternatives. In summary, the utilization of the rainwater control model and the comparison and evaluation of the benefit analysis result are helpful for scientifically and systematically selecting and optimizing the terrain adjustment scheme of the sponge city, so that the sustainable development goal of rainwater management is realized.

And S4, carrying out optimal design on each first terrain adjustment scheme based on each initial benefit scheme to obtain a final design scheme of the sponge city.

Specifically, each preliminary benefit scheme is evaluated in detail, including aspects of technical feasibility, economic cost, environmental impact, social acceptance and the like. And carrying out comprehensive optimization on each scheme based on the evaluation result. Including adjusting the scope and strength of the terrain modification, adding or subtracting or modifying the type and layout of the rain management facility, and considering new technologies or materials to increase efficiency and reduce cost. Multi-party stakeholders such as community members, environmental experts and the like are invited to participate in the discussion, and the comments and suggestions of the stakeholders for each optimization scheme are collected. Helping to ensure the comprehensiveness of the scheme and the smoothness of implementation. And (3) re-running the rainwater control model to simulate by using the updated terrain adjustment scheme parameters, and evaluating the performance of the optimization scheme under various rainfall situations. The optimized scheme can be ensured to be capable of more effectively managing rainwater. Cost-benefit analysis of the optimized solution ensures that the selected solution is economically viable while taking into account long-term operation and maintenance costs. After comprehensively considering technical efficiency, cost, environment and social factors, an optimal terrain adjustment scheme is selected as a final design scheme of the sponge city. A detailed implementation plan is formulated for the final selected design, including schedules, budgets, resource allocation, and monitoring schemes.

The following technical effects can be obtained through the steps: through the refined optimization design, the final scheme can collect and manage rainwater more effectively, and reduce urban flood risk. The comprehensive cost benefit analysis ensures the economic feasibility of projects, optimizes resource allocation and reduces unnecessary expenses. The optimization design of environmental influence and social acceptance is considered, so that the ecological environment of the city is improved, and the participation feeling and satisfaction of the community are enhanced. The optimized solution is more focused on long-term sustainability, including reducing maintenance costs and improving the adaptability of the system to address challenges presented by climate change. Through iterative evaluation and optimization processes, the scientificity and practicability of the final design scheme are ensured, and solid data support is provided for decision making. In summary, the optimization design step based on the preliminary benefit scheme can ensure that the terrain adjustment scheme of the sponge city is optimized technically.

And S5, performing rainwater simulation calculation on the final design scheme of the sponge city through a computer simulation technology to obtain the simulated collection quantity of the rainwater.

Specifically, according to the final design scheme of the sponge city, a computer model for simulating and calculating the rainwater is established. The model can accurately reflect key factors such as urban terrain, drainage system, greenbelt, infiltration area and the like. Different rainfall situations are set, including different rainfall, rainfall duration, intensity and the like. The above scenario should cover the common mild to extreme heavy rain event. Specific parameters in the topography adjustment scheme are input, such as the position and capacity of the drain ditch, the distribution of greenbelt and infiltration area, the height and fluctuation of topography, etc. And running the model under the set rainfall scene, and calculating the expected rainwater flow, ponding, infiltration and collection amount. And analyzing simulation results, and evaluating rainwater collection and management efficiency of the final design scheme under various rainfall conditions. The indicators of interest include the size of the ponding area, the load of the drainage system, the amount of rain penetration and collection, etc. According to the simulation result, the design scheme is adjusted and optimized as necessary to ensure the optimal performance under the actual rainfall condition.

The following technical effects can be obtained through the steps: through computer simulation, the rainwater management efficiency of the design scheme under different rainfall situations can be accurately predicted, and the actual rainfall event can be effectively treated. The simulation calculation helps to identify possible ponding risk areas and potential bottlenecks of the drainage system in advance, so that measures are taken to mitigate risks. The simulation result provides evidence basis for further optimizing the design scheme and improving the efficiency and effect of rainwater collection and management. Scientific data support is provided for decision makers, and the decision makers are helped to make more reasonable and effective decisions. By simulating the rainwater management efficiency of different schemes, the cost effectiveness of each scheme can be compared and analyzed, and a basis is provided for effective allocation of resources.

Through the steps, the computer simulation technology can ensure the theoretical effectiveness of the final design scheme of the sponge city, and can also predict and optimize the performance of the sponge city in actual operation, so that more efficient and sustainable rainwater management is realized.

And S6, acquiring the collection amount of the rainwater, monitoring the collection amount of the rainwater, and if the difference value between the collection amount of the rainwater and the simulation collection amount of the rainwater is not in a preset range, adjusting the final design scheme to obtain an optimal adjustment scheme.

Specifically, a real-time monitoring system is established for the rainwater collection and management system of the sponge city. Rain gauges, flow meters and other related sensors should be included for monitoring key data such as the amount, direction and flow rate of collected rain. Real-time data of the rainwater collection amount is continuously collected by a monitoring system, and the data is recorded together with meteorological data (such as actual rainfall) so as to carry out subsequent analysis. The actual monitored stormwater collection volume is compared with the collection volume previously obtained by computer simulation. It is important to pay attention to whether the difference between the two is out of a preset acceptable range. If the difference between the actual collection amount and the simulated collection amount is found to be outside the preset range, further analysis is performed to determine reasons including design insufficiency, accuracy problems of the prediction model or unexpected factors in actual operation. Based on the evaluation result, a specific adjustment scheme is formulated. Including physical modification of existing stormwater collection and drainage facilities, adding new collection facilities, adjusting the operating strategy of the drainage system, etc. The adjustment scheme is implemented, and the effect of adjustment is evaluated by continuously tracking the change of the rainwater collection amount through the monitoring system. If necessary, repeating the above steps until the difference between the actual collection amount and the analog collection amount is within an acceptable range.

The following technical effects can be obtained through the steps: through dynamic monitoring and timely adjustment, the rainwater collection and management system is ensured to achieve optimal efficiency in actual operation, and the rainwater utilization rate and management efficiency are effectively improved. The design scheme can be adjusted according to the actual running condition, so that the system is more flexible and flexible, and can adapt to future climate change and uncertainty of city development. By ensuring that the rainwater collection amount accords with the expectations, the urban flood risk caused by overload of the drainage system is effectively reduced. And scientific basis is provided for city planning and resource allocation through real-time monitoring and data analysis, so that investment is optimized, and resource waste is avoided.

The above-mentioned process promotes continuous learning and improvement mechanism, through continuous monitoring, evaluation and adjustment, the design and operation efficiency of the whole rainwater management system are improved. Through the steps, the rainwater management system in the sponge city can be ensured to be scientific and reasonable in design, and various rainfall conditions can be effectively treated in actual operation, so that efficient and sustainable rainwater management is realized.

In a specific embodiment, the current status data of the sponge city comprises a terrain parameter, a soil parameter, a hydrological parameter and a vegetation parameter, and the analysis result of the sponge city comprises a waterlogging area, a degree of groundwater level drop and a degree of water pollution of the sponge city; the method comprises the steps of collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city, comprising:

Specifically, basic data of the sponge city is collected, including parameters of historical topography, soil, hydrology, vegetation and the like. The data described above provides the necessary input information for the analytical model. An analytical model is constructed based on the collected historical parameter data. The analysis model can simulate and analyze the influence of different parameters on the urban rainwater management system. Parameters such as terrain, soil, hydrology and vegetation are input into a preset analysis model for calculation, and parameter calculation data of the sponge city are obtained. And carrying out deep analysis on the topography of the sponge city by utilizing the parameter calculation data, and identifying the waterlogging area, the groundwater level change condition and the potential water pollution area. Constraint condition data related to project implementation is collected, including land conditions, cost conditions, runoff control criteria, water conservancy conditions, and the like. And determining a sponge city target design scheme meeting actual requirements according to the terrain analysis result and the constraint condition. The scheme needs to comprehensively consider the targets of reducing waterlogging risk, reasonably controlling the underground water level, reducing water pollution and the like. And comprehensively evaluating the determined target design scheme, including technical feasibility, economic benefit and environmental impact evaluation. And if necessary, adjusting and optimizing the scheme according to the evaluation result.

The following technical effects can be achieved through the steps: through the deep analysis of the current situation of the sponge city, the waterlogging risk area, the underground water level change area and the potential water pollution source can be effectively identified, and a basis is provided for risk slowing measures. By comprehensively analyzing and considering constraint conditions, the sponge city design scheme which meets technical requirements and is economical and efficient can be manufactured, resource allocation is optimized, and overall benefits of projects are improved. Implementation of the target design scheme is beneficial to improving the performance of the urban rainwater management system, enhancing the adaptability of the city to extreme weather events and improving the quality of urban ecological environment. Through scientific analysis and planning, the design scheme of the sponge city can promote reasonable utilization and protection of water resources and support sustainable development of the city. The process provides decision support for decision makers based on data and scientific analysis, and enhances the transparency and reliability of decisions. In summary, not only the scientificity and practicability of the sponge city design scheme can be ensured, but also a safer, healthy and sustainable living environment can be provided for the city.

In a specific embodiment, performing terrain adjustment on a target design scheme of a sponge city by using a digital terrain model to obtain a plurality of first terrain adjustment schemes, including:

Specifically, based on a target design scheme of a sponge city, current topography information of the city is obtained. The method comprises the steps of inputting the topography data of the sponge city into a preset digital topography model, and extracting features of the topography through the model to obtain the topography features of the sponge city. Based on the extracted topographical features, key topographical features critical to rainwater management, such as height gradients, water collection areas, and the like, are identified. And according to the identified key terrain features, adjusting target design schemes of the sponge city in different dimensions to form a plurality of initial terrain adjustment schemes. Each terrain adjustment protocol was evaluated for rainwater penetration to determine the effectiveness of the different protocols in increasing ground penetration and reducing runoff. Further, each scheme was evaluated for rainwater collection efficiency, and its maximum rainwater collection and utilization ability was analyzed. And carrying out fusion analysis on the rainwater penetration evaluation result and the rainwater collection efficiency evaluation result, comprehensively considering the advantages and disadvantages of each scheme, further comparing and sequencing the schemes, and finally determining a plurality of preferred first terrain adjustment schemes.

The following technical effects can be achieved through the steps: through accurate topography adjustment, improve the permeability and the collection efficiency of rainwater, reduce urban waterlogging risk, promote the utilization efficiency of rainwater resource. By means of terrain adjustment, surface runoffs are effectively controlled and guided, the pressure of a drainage system is reduced, and flood damage in extreme weather is prevented. Through proper terrain adjustment, the urban green land and water body area are increased, and the quality of urban ecological environment and the quality of life of urban residents are improved. The terrain adjustment scheme based on the digital terrain model and comprehensive evaluation provides scientific decision basis for decision makers, and ensures the effectiveness and sustainability of urban development planning. By comprehensively evaluating and comparing different terrain adjustment schemes, the scheme with highest cost effectiveness can be identified, high-efficiency utilization of resources is ensured, and economic and environmental dual benefits are maximized. By adopting the digital terrain model to carry out fine terrain adjustment and analysis on the sponge city, the complex challenges of urban water management can be effectively addressed while the sustainability of urban development is ensured.

In a specific embodiment, performing benefit analysis on the plurality of first terrain adjustment schemes by using a rainwater control model to obtain a plurality of benefit analysis results, and comparing the plurality of benefit analysis results to obtain each initial benefit scheme, including:

Specifically, the different first terrain adjustment schemes are subjected to coding processing, and the coded first terrain adjustment schemes are converted into formats which can be analyzed by the rainwater control model. And performing benefit analysis on each coded terrain adjustment scheme by using a rainwater control model to obtain a preliminary benefit analysis result. And the preliminary benefit analysis result is converted into a vector form, so that mathematical comparison and analysis are convenient. Based on the vector of the benefit analysis result, a corresponding benefit analysis result matrix is constructed. And performing one-to-one mapping processing on the matrix of the benefit analysis result, and then comparing the mapping results of different schemes to determine each initial benefit scheme.

The following technical effects can be achieved through the steps: by means of the mathematical analysis method, comprehensive benefits of each terrain adjustment scheme can be estimated more accurately, including economic benefits, environmental benefits, social benefits and the like. The method makes the scheme more objective and scientific, and is helpful for screening out the optimized terrain adjustment scheme. Powerful data support is provided for city planning and water resource management, and decision makers are helped to make more reasonable selections. The high efficiency of resource allocation is ensured through comprehensive benefit analysis, and the maximum benefit of the input resources is ensured. Through scientific method evaluation and optimization scheme, the sustainable development of urban water resource management and urban planning is promoted. In summary, the selected sponge city topography adjustment scheme can be ensured to be optimal in comprehensive benefits, and has positive influence on the long-term development of cities.

In a specific embodiment, the optimizing design of each first terrain adjustment scheme based on each initial benefit scheme to obtain a final design scheme of the sponge city includes:

Specifically, a preprocessing module is used for evaluating each first terrain adjustment scheme which is determined and is based on each initial benefit scheme, and an evaluation initial scheme is obtained. Each evaluation initiation scheme is converted into a vector form for mathematical comparison and analysis. And obtaining cosine values of the expected benefit schemes, and carrying out similarity calculation on vectors of each evaluation initial scheme by using a cosine similarity model. And carrying out difference value calculation on the calculated similarity value of each evaluation initial scheme and the cosine value of the expected benefit scheme, and determining the similarity degree of each scheme and the expected scheme. And sorting the differences of all the estimated initial schemes from small to large, and determining the initial scheme closest to the expected benefit scheme. And selecting an initial evaluation scheme with the smallest difference value, namely closest to the expected benefit, and optimally designing the first terrain adjustment scheme based on the initial evaluation scheme to finally obtain a final design scheme of the sponge city.

The following technical effects can be achieved through the steps: the terrain adjustment scheme most matched with the expected benefit scheme can be accurately found out through cosine similarity calculation. The optimal scheme is favorable for accurately configuring urban resources, ensures the maximization of the utilization efficiency of the resources, and simultaneously gives consideration to economic, environmental and social benefits. The whole flow provides decision support through a mathematical method, and improves the decision quality of urban planning and management. The selected final scheme is beneficial to improving the ecological quality of the city and promoting sustainable development while improving the capability of the city for resisting natural disasters. Through scientific terrain adjustment and optimization, the adaptability of the city to climate change and extreme weather events is enhanced. In summary, the sponge city planning design can more accurately meet the established benefit targets, and a more sustainable, safe and efficient water management solution is provided for the city.

In a specific embodiment, the method for simulating and calculating the rainwater of the final design scheme of the sponge city by using a computer simulation technology to obtain the simulated collection amount of the rainwater comprises the following steps:

；

；/>

；

Specifically, information such as geographic positions, climate characteristics, historical rainfall records and the like of the sponge cities is collected. The data and images described above will be the basis for the calculation of the rain simulation. And using the collected simulation scene data to simulate the rainwater of the final design scheme of the sponge city through a professional hydrologic model and computer simulation software. The steps can generate key parameters such as simulated rainwater flow, flow velocity and concentration. Based on the obtained data such as the simulated rainwater flow, the flow velocity and the concentration, the simulated rainwater collection amount under the design scheme of the sponge city is calculated. Including the amount of rain expected to be collected and utilized by terrain adjustment, vegetation configuration, surface materials, etc., the geographic location of the sponge cityIn/>Is the abscissa of the geographic location of the sponge city,/>Is the ordinate of the geographic location of the sponge city.

The following technical effects can be achieved through the steps: providing accurate prediction of the rainwater collection and utilization effect that the sponge city design scheme can achieve in actual operation. By simulating rainfall events of different intensity, the performance of the design in extreme weather conditions is evaluated, thereby identifying potential risks and problems. The simulation results guide further optimization of the design scheme, such as adjusting the topography layout, adding rainwater collection facilities, etc., to improve the rainwater management effect. Scientific data support is provided, decision makers are helped to make more reasonable investment and planning decisions, and effective utilization of resources and successful implementation of projects are ensured. Better rainwater collection and utilization effects are achieved through the optimal design scheme, urban waterlogging risks are reduced, surface water quality is improved, and sustainable development of urban environments is further promoted. Through the computer simulation technology, not only can the rainwater management performance of the sponge city design scheme be accurately evaluated, but also the scheme design can be adjusted and optimized according to the simulation result, and finally, the effective management and utilization of the city water resource can be realized.

In a specific embodiment, acquiring a collection amount of rainwater, monitoring the collection amount of rainwater, and if a difference value between the collection amount of rainwater and a simulation collection amount of rainwater is not within a preset range, adjusting the final design scheme to obtain an optimal adjustment scheme, including:

Specifically, historical weather data of the area where the sponge city is located, such as rainfall, frequency, strength and the like, are positioned and collected, and related geographic information, such as terrain, soil water absorption capacity and the like, is collected. And analyzing the collected historical data by combining a hydrologic model with a GIS technology, and simulating the rainwater collection amounts under different rainfall conditions. Monitoring devices such as a rain gauge, a water level sensor and the like are installed at key collecting places so as to collect the actual collecting quantity of the rain water in real time. The existing data platform is developed or utilized to monitor and collect data in real time, and real-time comparison analysis is carried out on the actual collection amount and the analog collection amount. And setting an early warning system, and once the monitored difference value exceeds a preset range, automatically triggering an analysis program to extract a characteristic factor of the difference value. And according to the difference characteristic factors, combining equipment execution data and maintenance records, and identifying the root cause of the problem by using a statistical analysis or machine learning method. Based on the problem analysis results, a series of adjustment schemes are designed, including, but not limited to, re-planning collection areas, adjusting collection facility designs, optimizing maintenance flows. And constructing or using an existing feedback model, taking the adjustment scheme as input, simulating the adjusted effect, and continuing the adjustment scheme according to the simulation result until the optimal solution is found. After the final adjustment protocol is selected, the protocol is implemented and its effect is continuously monitored, ensuring that the adjustment approach meets the intended goal.

The following technical effects can be achieved through the steps: through finer data analysis and simulation, accuracy of rainwater collection prediction is improved, and urban waterlogging risk is effectively controlled. An automatically triggered monitoring and alarm system is constructed to ensure that once an anomaly occurs, it can be quickly identified and action taken. Through continuous iteration of the feedback model, the adjustment scheme is continuously optimized, and the rainwater collection and management capacity of the sponge city is improved. And the detailed problem analysis and adjustment scheme evaluation provide powerful support for decision makers and ensure the maximum benefit of resource investment. The design and management of the sponge urban rainwater collection system can be more scientific, accurate and efficient, so that the aims of better adapting to urban development requirements, reducing natural disaster risks and improving urban ecological environment are fulfilled.

The terrain construction method based on the sponge city design in the embodiment of the present invention is described above, and the terrain construction system based on the sponge city design in the embodiment of the present invention is described below, referring to fig. 2, an embodiment of the terrain construction system based on the sponge city design in the embodiment of the present invention includes:

the collecting module 21 is configured to collect current status data of a sponge city, and analyze topography of the sponge city based on the current status data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city;

The adjusting module 22 is configured to adjust the terrain of the target design solution of the sponge city by using the digital terrain model, so as to obtain a plurality of first terrain adjustment solutions; the first terrain adjustment scheme is used for improving rainwater penetration and increasing rainwater collection efficiency;

The analysis module 23 is configured to perform benefit analysis on each first terrain adjustment scheme by using a rainwater control model to obtain a plurality of benefit analysis results, and compare each benefit analysis result to obtain each initial benefit scheme;

The optimizing module 24 is configured to optimally design each of the first terrain adjustment schemes based on each of the initial benefit schemes, so as to obtain a final design scheme of the sponge city;

the calculation module 25 is used for performing rainwater simulation calculation on the final design scheme of the sponge city through a computer simulation technology to obtain a simulation collection amount of rainwater;

The judging module 26 is configured to obtain a collection amount of rainwater, monitor the collection amount of rainwater, and if a difference between the collection amount of rainwater and a simulated collection amount of rainwater is not within a preset range, adjust the final design scheme to obtain an optimal adjustment scheme.

In this embodiment, for specific implementation of each unit in the above system embodiment, please refer to the description in the above method embodiment, and no further description is given here.

Referring to fig. 3, a computer device is further provided in an embodiment of the present invention, and the internal structure of the computer device may be as shown in fig. 3. The computer device includes a processor, a memory, a display screen, an input device, a network interface, and a database connected by a system bus. Wherein the computer is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer device is used to store the corresponding data in this embodiment. The network interface of the computer device is used for communicating with an external terminal through a network connection. Which computer program, when being executed by a processor, carries out the above-mentioned method.

It will be appreciated by those skilled in the art that the architecture shown in fig. 3 is merely a block diagram of a portion of the architecture in connection with the present inventive arrangements and is not intended to limit the computer devices to which the present inventive arrangements are applicable.

An embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the above method. It is understood that the computer readable storage medium in this embodiment may be a volatile readable storage medium or a nonvolatile readable storage medium.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium provided by the present invention and used in embodiments may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual speed data rate SDRAM (SSRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (SYNCHLINK) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, apparatus, article, or method that comprises the element.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and drawings of the present invention or direct or indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. A topography construction method based on sponge city design is characterized in that: the method comprises the following steps:

2. The terrain construction method based on sponge city design of claim 1, wherein: the current status data of the sponge city comprises terrain parameters, soil parameters, hydrological parameters and vegetation parameters, and the analysis result of the sponge city comprises waterlogging areas, the degree of groundwater level drop and the degree of water pollution of the sponge city; the method comprises the steps of collecting current situation data of a sponge city, and analyzing the topography of the sponge city based on the current situation data to obtain an analysis result of the sponge city; determining a target design scheme of the sponge city based on the analysis result of the sponge city, comprising:

3. The terrain construction method based on sponge city design of claim 1, wherein: performing terrain adjustment on a target design scheme of a sponge city by using a digital terrain model to obtain a plurality of first terrain adjustment schemes, wherein the method comprises the following steps:

4. The terrain construction method based on sponge city design of claim 1, wherein: performing benefit analysis on a plurality of first terrain adjustment schemes by using a rainwater control model to obtain a plurality of benefit analysis results, and comparing the plurality of benefit analysis results to obtain each initial benefit scheme, wherein the method comprises the following steps:

5. The terrain construction method based on sponge city design of claim 1, wherein: and performing optimal design on each first terrain adjustment scheme based on each initial benefit scheme to obtain a final design scheme of the sponge city, wherein the method comprises the following steps:

6. The terrain construction method based on sponge city design of claim 1, wherein: the final design scheme of the sponge city is subjected to rainwater simulation calculation through a computer simulation technology to obtain the simulation collection amount of rainwater, and the method comprises the following steps:

；

Wherein the said Is in the geographic position/>, of sponge cityAnd a rain simulation flow rate at time t; /(I)Is a constant related to surface roughness and soil permeability,/>Representing a high gradient, representing a vector,Is the height of collecting rainwater,/>Is in the geographic position/>, of sponge cityAnd the rain simulation concentration at time t,/>Is the initial concentration,/>Is a rainwater collecting area,/>Is the decay constant,/>Is the period of time of the rainfall event,Is the efficiency of collecting rainwater in a rainwater collecting place,/>Is in the geographic position/>, of sponge cityAnd time t, rain simulation flow,/>Is the simulated collection of rainwater.

7. The method for constructing a topography based on a sponge city design according to claim 1, wherein the steps of obtaining a collection amount of rainwater, monitoring the collection amount of rainwater, and if a difference between the collection amount of rainwater and a simulated collection amount of rainwater is not within a preset range, adjusting the final design scheme to obtain an optimal adjustment scheme include:

8. A terrain construction system based on sponge city design, comprising:

9. A computer device comprising a memory and a processor, the memory having stored therein a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 7.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 7.