Efficient drainage strategy optimization method for radially-distributed water system in coastal shallow hill region

Abstract

The invention provides an efficient drainage strategy optimization method for a radially-distributed water system in a coastal shallow hill region. The method comprises the following steps: performing drainage layout on a target region by adopting different modes; carrying out flood drainage strategy selection; acquiring key data of a radially-distributed water system area in a coastal shallow hill area; performing real-time analysis, processing and evaluation on the key data; based on the key data analysis result, the drainage strategy is optimized and adjusted, and the optimal drainage scheme is compared and selected; and evaluating the optimized drainage strategy, dynamically adjusting a joint operation scheme under different boundary conditions, and applying the joint operation scheme to an equipment scheduling operation management system so as to improve the adaptability and efficiency of the drainage system to different scenes and external boundaries. The efficient flood drainage strategy and system capable of adapting to the coastal shallow hill area can provide effective support for improving the comprehensive benefit of flood control and drainage of the area, reducing the flood disaster risk, improving the utilization rate of urban land and reasonably carrying out flood drainage project layout and dispatching operation.

Description

Technical Field

[0001] The present application belongs to the technical field of flood control and drainage engineering, and relates to an efficient drainage optimization method, and in particular to an efficient drainage strategy optimization method for radially distributed water systems in coastal shallow hilly areas. Background Art

[0002] In coastal tidal areas, drainage issues have always been a key factor restricting economic and social development. In particular, in coastal shallow hilly areas composed of low hills and coastal plains, due to their special geographical environment, some typical areas have short rivers and the water level of inland rivers is easily affected by the tide level of the outer river, which makes it easy for waterlogging to occur during heavy rainfall.

[0003] Traditional drainage strategies such as self-drainage or forced drainage are often based on urban vertical planning that is conducive to self-drainage or certain water storage bodies. They are difficult to adapt to terrain and water system conditions where urban vertical planning does not meet the requirements of self-drainage or the capacity of water storage bodies is limited and the water system connectivity is poor. On the one hand, the scale of the pump station will be too large due to the steep rise of mountain torrents upstream and insufficient storage capacity downstream, but at the same time, the flow capacity of the river is limited, resulting in poor drainage effect. On the other hand, due to the poor connectivity of the water system, pump stations need to be set up at multiple inland river outlets, which makes dispatching and operation management more difficult.

[0004] Therefore, in the existing flood control and drainage technologies, the drainage effect is poor, which leads to excessive difficulty in scheduling and operation management, because the drainage strategy is difficult to adapt to the terrain and water system conditions where the urban vertical planning does not meet the self-drainage requirements or the storage water capacity is limited, and the water system connectivity is poor, but at the same time the river flow capacity is limited. This is a problem that needs to be solved urgently. Summary of the invention

[0005] In view of the shortcomings of the prior art mentioned above, the purpose of the present application is to provide a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas, which is used to solve the problem in existing flood control and drainage technologies that drainage strategies are difficult to adapt to terrain and water system conditions where urban vertical planning does not meet self-drainage requirements or the capacity of regulating water bodies is limited, the water system connectivity is poor, but at the same time the river flow capacity is limited, resulting in poor drainage effects and excessive difficulty in scheduling and operation management. This is a problem that needs to be urgently solved.

[0006] To achieve the above-mentioned purpose and other related purposes, in the first aspect, the present application provides a method for optimizing the efficient drainage strategy of radially distributed water systems in coastal shallow hilly areas, comprising the following steps: adopting different modes to carry out drainage layout for target areas, and obtaining the regional drainage planning layout of target coastal shallow hilly areas; selecting the regional drainage planning layout based on the drainage strategy to obtain a matching drainage plan; obtaining key drainage data of the radially distributed water system area in the target coastal shallow hilly area; the key drainage data includes: any one or more of the water level, flow rate, upstream rainfall, inland river water level, outer river water level, inflow flow rate, outflow flow rate, and soil saturation of key parts. The key data of waterlogging drainage are analyzed, processed and evaluated in real time by a data processing center to obtain analysis results of the key data of waterlogging drainage; the analysis results of the key data of waterlogging drainage include: the operation status of the current waterlogging drainage system and the probability of waterlogging; based on the analysis results of the key data of waterlogging drainage, the waterlogging drainage strategy is optimized and adjusted, and the optimal waterlogging drainage solution is selected by comparing different strategy solutions; by evaluating the optimized waterlogging drainage strategy, the joint operation solutions under different boundary conditions are dynamically adjusted according to the evaluation results, and the operation solutions of different waterlogging drainage facilities are applied to the equipment scheduling and operation management system to improve the adaptability and efficiency of the waterlogging drainage system to different scenarios and external boundaries.

[0007] In an implementation of the first aspect, the drainage layout includes: a drainage layout mode of regulation and storage + self-drainage utilizing the regulation and storage water body capacity and terrain advantages, and a drainage layout mode of regulation and storage + pumping utilizing the regulation and storage water body capacity combined with a pump station.

[0008] In an implementation method of the first aspect, it includes: in the drainage layout, when the ground elevation of the drainage area is higher than the outer river water level corresponding to the flood control standard, and the inner river water level does not overflow the embankment after regulation by natural / artificial water bodies in the area, the drainage safety can be guaranteed by opening and closing the gates and gravity self-drainage, and this drainage method is the storage + self-drainage mode; when the ground elevation of the drainage area is lower than the outer river water level corresponding to the flood control standard, and the inner river water level still overflows the embankment after regulation by natural / artificial water bodies in the area and the sluice gates waiting for an opportunity to discharge, it is necessary to ensure the drainage safety through water body regulation and pump station linkage, and this drainage method is the storage + pumping mode.

[0009] In one implementation of the first aspect, the typical landform characteristics of the target coastal shallow hill area with radially distributed water system areas are that the inland / island area of ​​the coastal area is hilly; the terrain transitions from high to low to the coastal plain and then merges into the outer river estuary. The water system is developed from the hilly area and is radially distributed in different catchment areas, flowing into the outer river alone.

[0010] In an implementation of the first aspect, the data processing center includes: at least one server; data processing of the key drainage data includes: storing and analyzing the flow data of the same period through the data processing center to form a time series of rainfall, flow, inner river water level and outer river water level; establishing an inner river rainfall-flow and flow-water level relationship based on the rainfall, flow, inner river water level and outer river water level time series; based on the inner river rainfall-flow and flow-water level relationship, combining real-time meteorological information and pump station parameters, performing flood routing according to a one-dimensional hydrodynamic model to analyze the inner river water level under boundary conditions. The relationship between the level and ground elevation includes real-time rainfall, river and rainwater pipe network inflow, and inland river and outer river water levels to assess flood risks; wherein, the flow data for the same period include: rainfall in the same period, water level at the upstream starting point of the river during the same rainstorm period, water level at the river outlet during the same period, water level at the outer river during the same period, and any one or more combinations of the river outlet during the same period; the meteorological information and pump station parameters include: any one or more combinations of weather forecast, inland river inflow process line, river water level-volume curve, outer river tidal process line, sluice discharge curve, and pump station scale; the boundary conditions include: current rainfall, sluice size, and pump station scale.

[0011] In one implementation of the first aspect, the optimization and adjustment of the drainage strategy should take into account terrain factors, hydrological factors, and meteorological factors; the optimal drainage plan is selected by comparing different strategic plans, including: when the river flow capacity meets the peak discharge capacity of the pump station, the scale of the pump station is increased; when the river flow capacity cannot match the pump station scale, resulting in a rapid increase in the upstream water level, the river needs to be further widened to increase the flow capacity; while maintaining the basic functions of the water body, the pre-drainage level is further reduced; the size of the sluice gate is adjusted to increase the discharge capacity; and the construction of sponge cities is promoted to control runoff and reduce confluence, delaying the time of flood peak.

[0012] In an implementation of the first aspect, the operating parameters of the drainage facility include any one or more combinations of starting and stopping a drainage pump, opening and closing a sluice gate, and regulating natural rivers, lakes, and artificial facilities.

[0013] In an implementation of the first aspect, it also includes: quickly launching an emergency plan under extreme weather conditions.

[0014] In the second aspect, the present application provides an efficient drainage strategy optimization system for radially distributed water systems in coastal shallow hilly areas, including: a drainage layout module, which is used to adopt different modes to carry out drainage layout for target areas, and obtain the regional drainage planning layout of the target coastal shallow hilly areas; a drainage strategy selection module, which is used to select the regional drainage planning layout based on the drainage strategy, and obtain a matching drainage plan; a data acquisition module, which is used to obtain key drainage data for radially distributed water systems in the target coastal shallow hilly areas; the key drainage data includes: any one or more combinations of water level, flow, upstream rainfall, inland river water level, outer river water level, inflow flow, outflow flow, and soil saturation at key locations; a data processing and analysis module, which is used to obtain the key drainage data through a data processing center The key drainage data are analyzed, processed and evaluated in real time to obtain the key drainage data analysis results; the key drainage data analysis results include: the current operating status of the drainage system and the probability of waterlogging; an optimization and adjustment module is used to optimize and adjust the drainage strategy based on the key drainage data analysis results, and select the optimal drainage solution by comparing different strategy solutions; a feedback and application module is used to evaluate the optimized drainage strategy, dynamically adjust the joint operation solution under different boundary conditions according to the evaluation results, and apply the operation solutions of different drainage facilities to the equipment scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries; an emergency response module is used to deal with drainage needs in extreme situations.

[0015] In the last aspect, the present application provides a device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas, comprising: a processor and a memory. The memory is used to store a computer program; the processor is connected to the memory and is used to execute the computer program stored in the memory, so that the device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas executes the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas.

[0016] As described above, the method for optimizing the efficient drainage strategy of radially distributed water systems in coastal shallow hilly areas described in this application has the following beneficial effects:

[0017] The present application provides a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas. The method can adapt to efficient drainage strategies and systems in coastal shallow hilly areas. It is of great significance for improving the comprehensive benefits of regional flood control and drainage, reducing the risk of flood disasters, and promoting regional security, stability and sustainable development. It not only helps to optimize resource allocation and improve urban land utilization, but also provides effective support for the reasonable layout and scheduling of drainage projects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1Shown is a flow chart of an embodiment of a method for optimizing a high-efficiency drainage strategy for radially distributed water systems in coastal shallow hilly areas as described in the present application.

[0019] Figure 2 Shown is a schematic flow chart of a method for optimizing an efficient flood drainage strategy for radially distributed water systems in coastal shallow hilly areas described in the present application.

[0020] Figure 3 Shown is a schematic flow chart of drainage data processing in S4 of an implementation of a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in this application.

[0021] Figure 4 Shown is a flow chart of selecting the optimal drainage plan in S5 of an implementation of a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in this application.

[0022] Figure 5 Shown is a schematic layout diagram of a typical coastal shallow hill area A consisting of low hills and coastal plains in an optimization method for efficient drainage strategies of radially distributed water systems in coastal shallow hill areas described in this application.

[0023] Figure 6 Shown is a schematic diagram of the principle structure of an embodiment of a radially distributed water system high-efficiency drainage strategy optimization system in a coastal shallow hill area described in the present application.

[0024] Figure 7 Shown is a schematic diagram of the principle structure of an efficient drainage strategy optimization device for radially distributed water systems in coastal shallow hilly areas described in this application in one embodiment.

[0025] Component number description

[0026] 61 Drainage Layout Module

[0027] 62 Drainage strategy selection module

[0028] 63 Data acquisition module

[0029] 64 Data processing and analysis module

[0030] 65 Optimization and adjustment module

[0031] 66 Feedback and Application Module

[0032] 71 Processor

[0033] 72 Memory DETAILED DESCRIPTION

[0034] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0035] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0036] The following will describe in detail the method for optimizing the efficient drainage strategy for radially distributed water systems in coastal shallow hilly areas provided in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application.

[0037] See also Figure 1 and Figure 2 , respectively showing a schematic diagram of a flow chart of an optimization method for efficient drainage strategy of radially distributed water systems in coastal shallow hills in one embodiment of the present application and a schematic diagram of a flow chart of an optimization method for efficient drainage strategy of radially distributed water systems in coastal shallow hills in the present application. Figure 1 and Figure 2 As shown, this embodiment provides a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas.

[0038] The method for optimizing the efficient drainage strategy of radially distributed water systems in coastal shallow hilly areas specifically comprises the following steps:

[0039] S1, adopt different modes to carry out drainage layout for the target area and obtain the regional drainage planning layout of the target coastal shallow hill area.

[0040] In this embodiment, the regional drainage planning is comprehensively arranged according to the topography of the drainage unit, urban planning (functional area positioning and vertical planning), flood control and drainage standards, etc., including: a drainage layout mode of regulation and storage + self-drainage that utilizes the capacity of the regulation and storage water body and the advantages of the terrain, and a drainage layout mode of regulation and storage + pumping that utilizes the combination of the capacity of the regulation and storage water body and the pumping station.

[0041] Specifically, in the drainage layout, when the ground elevation of the drainage area is higher than the outer river water level corresponding to the flood control standard, and the inner river water level does not overflow the embankment after regulation by natural or artificial water bodies in the area, the drainage safety can be guaranteed by opening and closing the gates and gravity drainage. This drainage method is the storage + self-drainage mode; when the ground elevation of the drainage area is lower than the outer river water level corresponding to the flood control standard, and the inner river water level still overflows the embankment after regulation by natural or artificial water bodies in the area and the sluice gates waiting for an opportunity to discharge, it is necessary to ensure the drainage safety through water body regulation and pump station linkage. This drainage method is the storage + pumping mode.

[0042] External rivers refer to the natural water systems outside the city, which are usually large rivers, lakes or oceans connected to the outside of the city. These water systems play an important role in flood control and drainage projects. On the one hand, they prevent external floods from entering the city area by building embankments and pumping stations, and on the other hand, they drain the internal water through internal pumping stations and other facilities to achieve the purpose of flood control and drainage.

[0043] For example, to carry out drainage layout for the target area, it is necessary to first understand the topographic and geomorphic characteristics of the drainage unit in detail, including altitude, slope, water system distribution, soil type, etc.; use GIS (geographic information system) and other technical means to digitally model the topography. Then, in-depth research on the positioning of functional areas in urban planning is carried out to clarify the functional needs and development directions of different areas; analyze the vertical planning content, understand the slope of urban land, the elevation of control points, the planned ground form, etc., to provide a basis for drainage planning. Then, according to the topography and urban planning requirements, a reasonable layout of the drainage system, including drainage pipes, pumping stations, ditches, etc., is carried out; ensure that the drainage system can cover the entire drainage unit and achieve efficient and rapid drainage. Combined with the vertical planning content, necessary adjustments and optimizations are made to the terrain within the drainage unit; the overall drainage capacity of the region is improved by changing the slope, adding drainage facilities and other measures. Finally, according to the specific needs of different functional areas, differentiated drainage planning schemes are formulated to complete the differentiated planning of functional areas; for example, key protection measures are taken for low-lying and flood-prone areas, and attention is paid to improving drainage efficiency for high-altitude areas.

[0044] For example, in the regulation and storage + self-drainage mode: first, we need to build a regulation and storage water body, identify the difference in terrain height in the region, determine the direction of natural water flow, evaluate low-lying areas and potential catchment areas, and provide a basis for the site selection of regulation and storage facilities. Build rainwater storage pools, wetlands and other regulation and storage facilities in low-lying areas or natural depressions to increase the capacity of rainwater regulation and storage, ensure that the regulation and storage facilities are coordinated with the surrounding terrain, and make full use of the terrain advantages to achieve natural drainage. Then, clean and dredge natural drainage channels such as rivers, streams, and drainage ditches to ensure smooth water flow; build or restore rain and flood discharge channels in necessary areas to improve regional drainage capacity. In urban planning, we should fully consider the drainage needs, reasonably layout buildings, roads and green spaces, and through vertical design, enable rainwater to flow smoothly to regulation and storage facilities and drainage channels. Finally, establish a sound drainage facility management system, regularly maintain regulation and storage facilities and drainage channels; strengthen the construction of monitoring and early warning systems to promptly discover and deal with drainage problems.

[0045] For example, in the regulation and storage + pumping mode, it is necessary to build the regulation and storage water bodies and pumping stations, build rainwater regulation and storage facilities at appropriate locations, and increase the rainwater regulation and storage capacity; build or renovate pumping stations according to drainage needs to improve regional pumping and drainage capabilities; ensure that pumping stations have dual-circuit power supplies or backup power supplies to improve power supply reliability. Then optimize the drainage network, that is, increase the construction of drainage networks, gradually eliminate blank areas of the network; renovate rainwater and sewage networks that are prone to waterlogging and mixed and misconnected, and improve drainage efficiency to ensure effective connection between the drainage network and pumping stations, regulation and storage facilities, etc.

[0046] S2, selecting the drainage planning layout of the area based on the drainage strategy to obtain a matching drainage plan.

[0047] In this embodiment, the drainage strategy is selected as follows: when the terrain conditions of the drainage unit are good, the water system connectivity is good and it has sufficient storage capacity, a self-drainage or self-drainage + pumping drainage strategy is selected. At this time, combined with the collection and analysis of rainfall, water level and other data, a suitable pump station linkage plan is selected.

[0048] When the drainage unit is low-lying, the water system connectivity is poor and the storage capacity is insufficient, the pumping drainage strategy is selected. At this time, it is necessary to combine the rainstorm and flood forecast to lower the inland river water level in advance. When the inland river water level is higher than the outer river water level, seize the opportunity to drain. At the same time, because the rivers in this area have short flow paths, small capacity and limited flow capacity, it is necessary to control the start and stop of the pump station based on the water level at the starting point of the river to prevent waterlogging in the upstream area of ​​the river.

[0049] Specifically, (1) when choosing the drainage strategy of self-drainage or self-drainage + pumping:

[0050] If the terrain conditions are favorable, the water system connectivity is good, and the storage capacity is sufficient, the self-drainage strategy is given priority; if the drainage capacity needs to be further enhanced, the pumping strategy is combined. Then a drainage plan is formulated, and reasonable drainage channels and paths are designed to ensure that rainwater can flow smoothly to natural water bodies or storage facilities; pump stations are set up at key nodes, and a pump station linkage plan is formulated. According to rainfall and water level data, the operation status of the pump station is automatically or manually adjusted to achieve efficient drainage.

[0051] Furthermore, the pump station linkage is carried out. That is, according to the regional characteristics and drainage needs, a reasonable pump station linkage plan is designed; the intelligent control system is used to realize remote monitoring and automatic scheduling of the pump station, and the pump station operation parameters are automatically adjusted according to the real-time rainfall and water level data through preset algorithms and logical judgments. Then the construction or renovation of the pump station is carried out according to the design plan. Ensure that the pump station has sufficient pumping capacity and stability, and configure the necessary backup power supply and emergency equipment to deal with emergencies. Finally, the pump station is included in the regional drainage monitoring system to realize real-time data collection and sharing, and system testing and debugging are carried out to ensure the accuracy and reliability of the pump station linkage plan.

[0052] Among them, the operating parameters of drainage facilities include but are not limited to: starting and stopping drainage pumps, opening and closing of sluice gates, and regulation of natural rivers, lakes and artificial facilities.

[0053] (2) When the drainage unit is low-lying, the water system connectivity is poor, and the storage capacity is insufficient:

[0054] Choose drainage as the main drainage strategy; formulate a detailed drainage plan, including: drainage timing, drainage volume, drainage route, etc.; then plan the pumping station: rationally arrange the pumping stations in the area to ensure that they can cover the areas that need drainage; select the appropriate pumping station model and number to meet the drainage needs; and consider the backup power supply and emergency measures of the pumping station to ensure normal operation in emergencies. Then carry out pre-lowering and emergency drainage of the inland river water level: combined with the rainstorm and flood forecast information, pre-lower the inland river water level in advance, and lower the inland river water level by opening the upstream gates, increasing the drainage volume, etc., to create favorable conditions for emergency drainage; when the inland river water level is higher than the outer river water level and the rainfall interval or intensity is weakened, seize the favorable opportunity to start emergency drainage; use the powerful drainage capacity of the pumping station to quickly discharge the inland river water into the outer river.

[0055] Then, due to the short flow path, small capacity and limited flow capacity of the rivers and creeks in this area, special attention should be paid to the water level at the starting point of the rivers and creeks. During the emergency drainage process, the water level at the starting point of the rivers and creeks is used as the control standard, and the water level of the rivers and creeks is controlled by adjusting the operating status of the pumping stations.

[0056] Then the pump station start-stop control is carried out. That is: establish a pump station start-stop control mechanism to automatically or manually adjust the pump station operation status according to the change of the water level at the starting point of the river; when the water level at the starting point of the river reaches the set threshold, start the pump station in time for pumping; when the water level drops to a safe range, stop the pump station operation in time to avoid waste of resources.

[0057] S3, obtaining key drainage data of the radially distributed water system area in the target coastal shallow hill area, wherein the key drainage data include but are not limited to key parameters such as water level and flow rate at key locations, upstream rainfall, inland river water level, external river water level, inflow flow rate, outflow flow rate, soil saturation, etc.

[0058] The formation characteristics of radially distributed water systems are that the terrain is high in the middle and low around. This distribution pattern is mainly seen in Asia, where the water system has two main characteristics: one is that the water system structure is radial, forming an outflow water system that flows from the central plateau and mountains to the surrounding oceans; the other is that the inland flow basin area is large. The terrain is high in the middle and low around, resulting in most rivers originating from the central plateau and mountains, and flowing radially to the surrounding areas along the terrain into the sea. This terrain feature makes the river system in this type of area form a unique radial distribution pattern.

[0059] The formation of radially distributed water systems is closely related to the natural geographical features of the surface. When the terrain is high in the middle and low around, rivers and streams will naturally flow from highlands to lowlands, forming a centripetal or centrifugal water flow pattern. The plateaus and mountainous areas in the middle of this terrain are the source of many rivers, and the rivers flow along the terrain to the surrounding oceans or lowlands, thus forming a radial water system distribution.

[0060] In this embodiment, water level and flow sensors are deployed at key locations such as the transition zone between hills and plains, the starting point and outlet of rivers and streams, and the outlet of rainwater pipes in the radially distributed water system area in the coastal shallow hills area to monitor key parameters such as upstream rainfall, water levels of inland and outer rivers, inflow and outflow flow, soil saturation, etc. in real time. Then, data transmission is performed, and the data collected by the sensors is transmitted to the data processing center in real time using wireless communication technology.

[0061] Among them, the typical coastal shallow hilly area with radially distributed water systems is characterized by hilly landforms in the inland of the coastal area or in the middle of the island. The terrain transitions from high to low to the coastal plain and then merges into the outer river (estuary). The water system is developed in the hilly area and is radially distributed in different catchment areas, flowing into the outer river alone.

[0062] Specifically, first select the appropriate sensor type according to the monitoring needs, such as: water level sensor, flow sensor, rainfall sensor, soil moisture sensor, etc.; determine the installation location of the sensor according to the monitoring plan, and install the sensor in the designated location according to the operating specifications to ensure that the installation is stable and the connection is reliable; debug and test the installed sensor to ensure that the sensor can work normally and transmit data accurately.

[0063] Then, each sensor is integrated with the data acquisition system or monitoring platform to realize automatic data collection, processing and storage.

[0064] Finally, configure the data transmission method (such as wired, wireless, etc.), and use wireless communication technology to transmit the data collected by the sensor to the data processing center in real time. It is necessary to ensure that the data of these key parameters can be transmitted to the data processing center in a timely and accurate manner.

[0065] S4, the data processing center performs real-time analysis, processing and evaluation on the key drainage data to obtain the key drainage data analysis results. The key drainage data analysis results include: the current operation status of the drainage system and the probability of waterlogging. Figure 3 , which is a schematic diagram of the process of processing drainage data in S4 of an implementation of a method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in this application. Figure 3 As shown, S4 comprises the following steps:

[0066] The data processing of the key drainage data includes:

[0067] S41, storing and analyzing the flow data of the same period through the data processing center to form a time series of rainfall, flow, inner river water level and outer river water level;

[0068] S42, establishing the relationship between rainfall-discharge and discharge-water level of the inner river based on the time series of rainfall, discharge, inner river water level and outer river water level;

[0069] S43, based on the rainfall-flow and flow-water level relationships of the inland river, combined with real-time meteorological information and pump station parameters, flood calculation is performed according to a one-dimensional hydrodynamic model, and the relationship between the inland water level and the ground elevation under boundary conditions is analyzed, including real-time rainfall, river and rainwater pipe network inflow, and inland and outer river water levels, so as to assess flood risks.

[0070] in,

[0071] The flow data for the same period includes: any one or more combinations of the rainfall for the same period, the water level at the upstream starting point of the river during the same rainstorm period, the water level at the outlet of the river for the same period, the water level of the outer river for the same period, and the outlet of the river for the same period;

[0072] The meteorological information and pump station parameters include: any one or more combinations of weather forecast, inland river inflow process line, river water level-volume curve, external river tide process line, sluice discharge curve, and pump station scale;

[0073] The boundary conditions include: current rainfall, sluice size, and pump station scale.

[0074] In this embodiment, the data processing center performs real-time analysis on the collected data, and evaluates the current operation status of the drainage system and the probability of waterlogging by combining parameters such as the capacity of the regulated water body and the relationship between the water levels of the inner and outer rivers. The data processing center includes: at least one server.

[0075] Specifically, the data processing center includes one or more servers for storing and analyzing the rainfall data collected by rain gauges, water level meters, and flow meters during the same period, the water level at the upstream starting point of the river during the rainstorm period, the water level at the river outlet (before the gate), the water level of the outer river, the river outlet and other flow data, and statistically forming the rainfall, flow, inner river water level and outer river water level time series, and establishing the inner river rainfall-flow, flow-water level relationship. Combined with real-time weather forecasts, inner river inflow process lines, river water level-volume curves, outer river tide process lines, sluice discharge curves, pump station scale and other parameters, flood routing is performed according to the one-dimensional hydrodynamic model, and the relationship between the inner waterlogging water level and the ground elevation under the boundary conditions of the current rainfall, sluice size, pump station scale and other real-time rainfall, river and rainwater pipe network inflow, inner river and outer river water level and other data are analyzed to assess the flood risk.

[0076] It should be noted that data analysis tools can be used to process and analyze monitoring data, extract useful information, and provide decision-making support for flood control and drainage, water resources management, and ecological and environmental protection.

[0077] S5, based on the analysis results of the key drainage data, optimize and adjust the drainage strategy, and select the best drainage plan by comparing different strategies. Figure 4 , which is a schematic diagram of the process of selecting the optimal drainage plan in S5 of an implementation of the method for optimizing the efficient drainage strategy of radially distributed water systems in coastal shallow hills described in this application. Figure 4 As shown, S5 comprises the following steps:

[0078] S51: When the river flow capacity meets the peak discharge capacity of the pumping station, increase the scale of the pumping station;

[0079] S52: When the flow capacity of the river cannot match the scale of the pump station, resulting in too fast an increase in the upstream water level, it is necessary to further widen the river to increase the flow capacity;

[0080] S53: further reduce the pre-drawn water level while maintaining the basic functions of the water body;

[0081] S54, adjust the size of the water gate to increase the discharge capacity;

[0082] S55, promote the construction of sponge cities, control runoff and reduce confluence, and delay the occurrence of flood peaks.

[0083] In this embodiment, the optimization and adjustment of the drainage strategy should take into account multiple factors such as terrain factors, hydrological factors, meteorological factors, etc.; based on the data analysis results, the drainage strategy is optimized and adjusted in combination with engineering technical and economic analysis and external conditions; including but not limited to: drainage pump station operation plan, sluice opportunity drainage plan, inland river water level pre-drainage plan, sponge city pipeline flow control strategy, etc., and the optimal drainage plan is selected through technical and economic comparison of different strategy plans.

[0084] Specifically, first, based on the analysis results of the key drainage data, combined with terrain factors, hydrological factors, meteorological factors and other factors, a preliminary drainage strategy is formulated, including: drainage pump station operation plan, sluice emergency drainage plan, inland river water level pre-drop plan, sponge city pipe network flow control strategy, etc. For example: considering terrain factors, optimizing drainage paths and catchment area division to ensure smooth water discharge; considering hydrological factors, reasonably designing the capacity and layout of drainage facilities to cope with drainage needs under different rainfall conditions; considering meteorological factors, strengthening rainstorm warning and emergency response mechanisms, and taking drainage measures in advance. Then, design multiple drainage plans.

[0085] Next, an engineering and technical analysis is conducted on each plan to evaluate its technical feasibility, reliability and maintainability; a cost-benefit analysis is conducted on the plan to compare the investment cost, operating cost and long-term benefits of different plans, and economic evaluation indicators such as payback period, internal rate of return, net present value, etc. are used for evaluation; and a comprehensive comparison of different plans is conducted by comprehensively considering factors such as engineering technology, economy and social benefits.

[0086] Finally, the optimal drainage plan is selected, which should have obvious advantages in terms of technical feasibility, economic rationality, and significant social benefits.

[0087] In summary, after considering various factors such as topography, hydrology, and meteorology in the optimization plan, the optimal drainage plan is selected through technical and economic comparison of different strategies, including: 1) Increasing the scale of the pump station when the river flow capacity meets the peak discharge capacity of the pump station; 2) The river flow capacity cannot match the scale of the pump station, resulting in a rapid increase in the upstream water level, and the river needs to be further widened to increase the flow capacity; 3) Under the condition of maintaining the basic functions of the water body (landscape, barges, etc.), further reduce the pre-drainage level; 4) Adjust the size of the sluice gate to increase the discharge capacity; 5) Promote the construction of sponge cities, control runoff and reduce confluence, and delay the time of flood peaks.

[0088] S6, by evaluating the optimized drainage strategy, dynamically adjusting the joint operation plan under different boundary conditions according to the evaluation results, and applying the operation plans of different drainage facilities to the equipment scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries.

[0089] In this embodiment, the drainage effect of the optimized drainage strategy is evaluated through simulation operation, and the joint operation plan of the sluice and pump station under different boundary conditions such as rainfall, outer river water level, and urban vertical planning is dynamically adjusted according to the evaluation results. Different pump and gate operation plans are applied to the pump and gate scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries.

[0090] Specifically, first, by using professional hydrological models and hydrodynamic models, a simulation environment that is consistent with the actual situation is constructed; the optimized drainage strategy parameters are input, including: pump station operation plan, sluice scheduling strategy, inland river water level pre-drop plan, etc. Rainfall scenarios with different rainfall intensities, frequencies, and durations are simulated in the simulation environment; at the same time, the influence of external boundary conditions such as changes in the outer river water level and adjustments to the urban vertical planning are considered. The simulation results are analyzed to evaluate the drainage effect of the optimized drainage strategy in different scenarios, focusing on key indicators such as inland waterlogging waterlogging time, waterlogging volume, and drainage efficiency.

[0091] Then, based on the simulation evaluation results, identify areas or time periods with poor drainage effects, analyze the specific causes of the problems, such as insufficient pump station capacity, unreasonable sluice scheduling, improper inland river water level control, etc., to identify problem areas. Then make dynamic adjustments, such as dynamically adjusting the joint operation plan of sluice pump stations according to the problem areas and causes, including: adjusting the number of pump stations started, operating time, drainage flow, etc., and optimizing the opening time and opening degree of sluices, etc., to ensure that the drainage system can operate efficiently under boundary conditions such as different rainfall, external river water levels, and urban vertical planning.

[0092] Next, the adjusted different pump gate operation plans are integrated into the pump gate dispatching and operation management system to ensure that the system can automatically select the appropriate operation plan according to different scenarios and external boundary conditions. Modern information technology means, such as the Internet of Things, big data, and artificial intelligence, are then used to achieve real-time monitoring and intelligent dispatching of pump gates; at the same time, key information such as rainfall conditions, external river water levels, and internal river water levels are monitored in real time, and the operation status of pump gates is dynamically adjusted according to real-time data. Furthermore, in the actual application process, feedback information and data are continuously collected to optimize and iterate the pump gate dispatching and operation management system; through data analysis and model prediction, the adaptability and efficiency of the system are further improved.

[0093] It should be noted that the implementation of the feedback link includes real-time monitoring of drainage effects, and optimizing and adjusting drainage strategies and drainage facility layouts based on actual results.

[0094] In addition, the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in the present application also includes an emergency response function for quickly launching emergency plans in extreme weather conditions.

[0095] In this embodiment, a detailed drainage emergency plan is formulated and an emergency response team is established based on regional characteristics, historical flood data, meteorological forecasts and other factors. Modern scientific and technological means, such as satellite remote sensing, radar rain measurement, automatic weather stations, etc., are used to establish a flood monitoring system to monitor key indicators such as rainfall, water level, and water flow rate in real time. When extreme weather or flooding is detected, the drainage emergency plan is immediately activated. Then, according to the actual situation, appropriate drainage measures are taken, such as opening drainage pump stations, unblocking drainage pipes, and setting up temporary drainage facilities; ensure the normal operation of the drainage system and reduce the impact of waterlogging on citizens' lives and urban operations.

[0096] The following is an example of a typical coastal shallow hill area A consisting of low hills and coastal plains, combined with the implementation process of the above technical solution. Figure 5 , showing a schematic layout diagram of a typical coastal shallow hill area A consisting of low hills and coastal plains in an optimization method for an efficient drainage strategy of a radially distributed water system in a coastal shallow hill area described in this application.

[0097] In this embodiment, for the typical coastal shallow hill area in Region A, basic project data needs to be extracted, such as: the existing river width, length and water level-volume relationship curve, the scale and location of the drainage gate, the designed inflow process and the tidal level process of the outer river discharge area outside each gate.

[0098] The specific process is as follows:

[0099] The first step is to determine the drainage mode of self-drainage or forced drainage according to the control regulations, vertical planning and drainage standards of the independent drainage unit corresponding to the outer river tide level and other parameters.

[0100] For example, a typical coastal shallow hill area A consisting of low hills and coastal plains is divided into multiple coastal plain areas, each of which contains rivers. For example, in this embodiment, area A is divided into 6 drainage units, with a total of 6 rivers. Each river is located in each drainage unit area, and each river is provided with a sluice gate or pump station at the mouth of each river to assist in the drainage work.

[0101] In the second step, different methods are used to calculate the design flood water according to the characteristic values ​​of the independent drainage unit watershed and the rainstorm parameters. After the results are coordinated, the one with the larger flow peak is selected as the natural flood water design flow result of the drainage outlet of each flood area. According to the measured tidal data, the tide type that is unfavorable to drainage is selected as the tidal process line for drainage calculation, and the tidal process of each frequency is obtained by scaling the highest tidal peak value in the same proportion.

[0102] The third step is to simulate the drainage according to the proposed drainage dispatch rules, river and creek capacity, designed flood water and outer river tidal level. The unfavorable combination of tidal process and flood water process is considered as the flood tidal condition for drainage simulation.

[0103] The fourth step is that traditional drainage simulation calculations are based on the relationship between the water levels inside and outside the sluice and the water level at the pump station inlet when determining the opening and closing status of the sluice and pump station.

[0104] Specifically, according to the terrain and water system characteristics of the area where this embodiment is located, it is necessary to combine the monitoring data such as the peak value of the rainstorm in the upper reaches of the river, the flood evolution time course, and the water level at the starting point of the river, and transmit them to the pump station dispatching control system for start-up status judgment. If the water level at the starting point of the river exceeds the start-stop water level of the pump station or the flood flow at the starting point of the river exceeds the warning value, the pump station is started to pump out.

[0105] The fifth step is to formulate different control water levels for drainage pump station scale comparison. The scale selection of drainage pump station needs to be comprehensively compared with factors such as pump station investment, regional vertical elevation planning, and the degree of matching of river and creek peak discharge capacity to determine the scale of the drainage unit pump station.

[0106] The sixth step is to carry out the calculation process of the first to fifth steps for each drainage unit until the drainage strategy and scale layout of all drainage units are completed. After the layout of drainage facilities in the entire drainage area is formed, the dynamic management of the drainage system is implemented through the integrated control system to ensure the flood safety of the entire drainage area.

[0107] It should be noted that in this embodiment, when the ground elevation of each independent drainage unit in the drainage area is higher than the outer river water (tide) level of the corresponding drainage standard and the inland river flow capacity and the sluice flood discharge capacity meet the peak flood flow, the drainage requirements can be met by gravity drainage, and there is no optimization problem of the drainage strategy at this time.

[0108] The optimization method for efficient drainage strategy of radially distributed water system in coastal shallow hilly areas provided by this application can optimize and adjust the drainage strategy that conforms to the characteristics of the terrain and water system according to the actual terrain and confluence of the radially distributed water system area in coastal shallow hilly areas; at the same time, it also broadens the scope of application of different drainage strategies for different terrain and water system scenarios and the ability of drainage systems to cope with extreme weather events. This application can improve the decision-making ability and efficiency of drainage strategies and reduce the risk of waterlogging through the analysis and optimization algorithm that combines hydrological and meteorological forecasts with real-time data.

[0109] The protection scope of the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in the embodiment of the present application is not limited to the order of execution of the steps listed in the present embodiment. All solutions implemented by adding, reducing or replacing steps in the prior art based on the principles of the present application are included in the protection scope of the present application.

[0110] An embodiment of the present application also provides a system for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas. The system for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas can implement the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in the present application. However, the implementation device of the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas described in the present application includes but is not limited to the structure of the system for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas listed in the present embodiment. All structural deformations and replacements of the prior art made according to the principles of the present application are included in the protection scope of the present application.

[0111] The following will describe in detail the efficient drainage strategy optimization system for radially distributed water systems in coastal shallow hilly areas provided by this embodiment with reference to the diagrams.

[0112] This embodiment provides a system for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas, including:

[0113] See also Figure 6 , which is a schematic diagram of the principle structure of an optimization system for efficient drainage strategy of radially distributed water systems in coastal shallow hilly areas described in this application in one embodiment. Figure 6 As shown, the efficient drainage strategy optimization system for radially distributed water systems in coastal shallow hilly areas includes: a drainage layout module 61, a drainage strategy selection module 62, a data acquisition module 63, a data processing and analysis module 64, an optimization and adjustment module 65, a feedback and application module 66, and an emergency response module 67.

[0114] The drainage layout module 61 is used to carry out drainage layout for the target area using different modes, and obtain the regional drainage planning layout of the target coastal shallow hill area.

[0115] In this embodiment, in this embodiment, the regional drainage planning is coordinated and arranged according to the topography of the drainage unit, urban planning (functional area positioning and vertical planning), flood control and drainage standards, etc., including: a drainage layout mode of regulation and storage + self-drainage that utilizes the capacity of the regulation and storage water body and the advantages of the terrain, and a drainage layout mode of regulation and storage + pumping that utilizes the combination of the capacity of the regulation and storage water body and the pumping station.

[0116] Specifically, in the drainage layout, when the ground elevation of the drainage area is higher than the outer river water level corresponding to the flood control standard, and the inner river water level does not overflow the embankment after regulation by natural or artificial water bodies in the area, the drainage safety can be guaranteed by opening and closing the gates and gravity drainage. This drainage method is the storage + self-drainage mode; when the ground elevation of the drainage area is lower than the outer river water level corresponding to the flood control standard, and the inner river water level still overflows the embankment after regulation by natural or artificial water bodies in the area and the sluice gates waiting for an opportunity to discharge, it is necessary to ensure the drainage safety through water body regulation and pump station linkage. This drainage method is the storage + pumping mode.

[0117] The drainage strategy selection module 62 is used to select the regional drainage planning layout based on the drainage strategy to obtain a matching drainage plan.

[0118] In this embodiment, the drainage strategy is selected as follows: when the terrain conditions of the drainage unit are good, the water system connectivity is good and it has sufficient storage capacity, a self-drainage or self-drainage + pumping drainage strategy is selected. At this time, combined with the collection and analysis of rainfall, water level and other data, a suitable pump station linkage plan is selected.

[0119] When the drainage unit is low-lying, the water system connectivity is poor and the storage capacity is insufficient, the pumping drainage strategy is selected. At this time, it is necessary to combine the rainstorm and flood forecast to lower the inland river water level in advance. When the inland river water level is higher than the outer river water level, seize the opportunity to drain. At the same time, because the rivers in this area have short flow paths, small capacity and limited flow capacity, it is necessary to control the start and stop of the pump station based on the water level at the starting point of the river to prevent waterlogging in the upstream area of ​​the river.

[0120] The data acquisition module 63 is used to obtain key drainage data of the radially distributed water system area in the target coastal shallow hill area; the key drainage data includes: any one or more combinations of water level, flow, upstream rainfall, inland river water level, outer river water level, inflow flow, outflow flow, and soil saturation at key locations.

[0121] In this embodiment, water level and flow sensors are deployed at key locations such as the transition zone between hills and plains, the starting point and outlet of rivers and streams, and the outlet of rainwater pipes in the radially distributed water system area in the coastal shallow hills area to monitor key parameters such as upstream rainfall, water levels of inland and outer rivers, inflow and outflow flow, soil saturation, etc. in real time. Then, data transmission is performed, and the data collected by the sensors is transmitted to the data processing center in real time using wireless communication technology.

[0122] Among them, the typical coastal shallow hilly area with radially distributed water systems is characterized by hilly landforms in the inland of the coastal area or in the middle of the island. The terrain transitions from high to low to the coastal plain and then merges into the outer river (estuary). The water system is developed in the hilly area and is radially distributed in different catchment areas, flowing into the outer river alone.

[0123] The data processing and analysis module 64 is used to perform real-time analysis, processing and evaluation of the key drainage data through the data processing center to obtain key drainage data analysis results; the key drainage data analysis results include: the operating status of the current drainage system and the probability of waterlogging.

[0124] In this embodiment, processing the key data of flood drainage includes:

[0125] The data processing center stores and analyzes the flow data of the same period to form a time series of rainfall, flow, inland river water level and external river water level;

[0126] Based on the time series of rainfall, flow, inland river water level and external river water level, the relationship between inland river rainfall-flow and flow-water level is established;

[0127] Based on the relationship between the rainfall-flow and the flow-water level of the inland river, flood calculation is performed according to the one-dimensional hydrodynamic model in combination with real-time meteorological information and pump station parameters. The relationship between the inland water level and the ground elevation under boundary conditions is analyzed using real-time rainfall, river and rainwater pipe network inflow, and inland and outer river water levels to assess flood risks.

[0128] in,

[0129] The flow data for the same period includes: any one or more combinations of the rainfall for the same period, the water level at the upstream starting point of the river during the same rainstorm period, the water level at the outlet of the river for the same period, the water level of the outer river for the same period, and the outlet of the river for the same period;

[0130] The meteorological information and pump station parameters include: any one or more combinations of weather forecast, inland river inflow process line, river water level-volume curve, external river tide process line, sluice discharge curve, and pump station scale;

[0131] The boundary conditions include: current rainfall, sluice size, and pump station scale.

[0132] In this embodiment, the data processing center performs real-time analysis on the collected data, and evaluates the current operation status of the drainage system and the probability of waterlogging by combining parameters such as the capacity of the regulated water body and the relationship between the water levels of the inner and outer rivers. The data processing center includes: at least one server.

[0133] Specifically, the data processing center includes one or more servers for storing and analyzing the rainfall data collected by rain gauges, water level meters, and flow meters during the same period, the water level at the upstream starting point of the river during the rainstorm period, the water level at the river outlet (before the gate), the water level of the outer river, the river outlet and other flow data, and statistically forming the rainfall, flow, inner river water level and outer river water level time series, and establishing the inner river rainfall-flow, flow-water level relationship. Combined with real-time weather forecasts, inner river inflow process lines, river water level-volume curves, outer river tide process lines, sluice discharge curves, pump station scale and other parameters, flood routing is performed according to the one-dimensional hydrodynamic model, and the relationship between the inner waterlogging water level and the ground elevation under the boundary conditions of the current rainfall, sluice size, pump station scale and other real-time rainfall, river and rainwater pipe network inflow, inner river and outer river water level and other data are analyzed to assess the flood risk.

[0134] The optimization and adjustment module 65 is used to optimize and adjust the drainage strategy based on the analysis results of the key drainage data, and select the optimal drainage solution by comparing different strategy solutions.

[0135] In this embodiment, the optimization and adjustment of the drainage strategy should take into account multiple factors such as terrain factors, hydrological factors, meteorological factors, etc.; based on the data analysis results, the drainage strategy is optimized and adjusted in combination with engineering technical and economic analysis and external conditions; including but not limited to: drainage pump station operation plan, sluice opportunity drainage plan, inland river water level pre-drainage plan, sponge city pipeline flow control strategy, etc., and the optimal drainage plan is selected through technical and economic comparison of different strategy plans.

[0136] Specifically, first, based on the analysis results of the key drainage data, combined with terrain factors, hydrological factors, meteorological factors and other factors, a preliminary drainage strategy is formulated, including: drainage pump station operation plan, sluice emergency drainage plan, inland river water level pre-drop plan, sponge city pipe network flow control strategy, etc. For example: considering terrain factors, optimizing drainage paths and catchment area division to ensure smooth water discharge; considering hydrological factors, reasonably designing the capacity and layout of drainage facilities to cope with drainage needs under different rainfall conditions; considering meteorological factors, strengthening rainstorm warning and emergency response mechanisms, and taking drainage measures in advance. Then, design multiple drainage plans.

[0137] Next, an engineering and technical analysis is conducted on each plan to evaluate its technical feasibility, reliability and maintainability; a cost-benefit analysis is conducted on the plan to compare the investment cost, operating cost and long-term benefits of different plans, and economic evaluation indicators such as payback period, internal rate of return, net present value, etc. are used for evaluation; and a comprehensive comparison of different plans is conducted by comprehensively considering factors such as engineering technology, economy and social benefits.

[0138] Finally, the optimal drainage plan is selected, which should have obvious advantages in terms of technical feasibility, economic rationality, and significant social benefits.

[0139] In summary, after considering various factors such as topography, hydrology, and meteorology in the optimization plan, the optimal drainage plan is selected through technical and economic comparison of different strategies, including: 1) Increasing the scale of the pump station when the river flow capacity meets the peak discharge capacity of the pump station; 2) The river flow capacity cannot match the scale of the pump station, resulting in a rapid increase in the upstream water level, and the river needs to be further widened to increase the flow capacity; 3) Under the condition of maintaining the basic functions of the water body (landscape, barges, etc.), further reduce the pre-drainage level; 4) Adjust the size of the sluice gate to increase the discharge capacity; 5) Promote the construction of sponge cities, control runoff and reduce confluence, and delay the time of flood peaks.

[0140] The feedback and application module 66 is used to evaluate the optimized drainage strategy, dynamically adjust the joint operation plan under different boundary conditions according to the evaluation results, and apply the operation plans of different drainage facilities to the equipment scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries.

[0141] In this embodiment, the drainage effect of the optimized drainage strategy is evaluated through simulation operation, and the joint operation plan of the sluice and pump station under different boundary conditions such as rainfall, outer river water level, and urban vertical planning is dynamically adjusted according to the evaluation results. Different pump and gate operation plans are applied to the pump and gate scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries.

[0142] The emergency response module 67 is used to handle drainage needs in extreme situations.

[0143] In this embodiment, a detailed drainage emergency plan is formulated and an emergency response team is established based on regional characteristics, historical flood data, meteorological forecasts and other factors. Modern scientific and technological means, such as satellite remote sensing, radar rain measurement, automatic weather stations, etc., are used to establish a flood monitoring system to monitor key indicators such as rainfall, water level, and water flow rate in real time. When extreme weather or flooding is detected, the drainage emergency plan is immediately activated. Then, according to the actual situation, appropriate drainage measures are taken, such as opening drainage pump stations, unblocking drainage pipes, and setting up temporary drainage facilities; ensure the normal operation of the drainage system and reduce the impact of waterlogging on citizens' lives and urban operations.

[0144] Optimization model for efficient drainage strategy of radially distributed water systems in coastal shallow hills The optimization system for efficient drainage strategy of radially distributed water systems in coastal shallow hills can dynamically adjust drainage strategies according to real-time data and terrain characteristics to improve drainage efficiency. Similarly, this application can also adapt to efficient drainage strategies and systems in coastal shallow hills, which is of great significance for improving the comprehensive benefits of regional flood control and drainage, reducing the risk of flood disasters, and promoting regional security, stability and sustainable development. It not only helps to optimize resource allocation and improve urban land utilization, but also provides effective support for the reasonable layout and scheduling of drainage projects.

[0145] It should be noted that it should be understood that the division of the various modules of the above system is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And these modules can all be implemented in the form of software called by processing elements; they can also be all implemented in the form of hardware; some modules can also be implemented in the form of software called by processing elements, and some modules can be implemented in the form of hardware. For example, the x module can be a separately established processing element, or it can be integrated in a certain chip of the above system for implementation. In addition, it can also be stored in the memory of the above system in the form of program code, and called and executed by a certain processing element of the above system. The implementation of other modules is similar. In addition, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element described here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each module above can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.

[0146] The above modules may be one or more integrated circuits configured to implement the above methods, such as one or more application specific integrated circuits (ASIC), or one or more digital signal processors (DSP), or one or more field programmable gate arrays (FPGA). For another example, when a module is implemented in the form of a processing element scheduling program code, the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

[0147] See also Figure 7, which is a schematic diagram of the principle structure of an efficient drainage strategy optimization device for radially distributed water systems in coastal shallow hills in one embodiment of the present application. Figure 7 As shown, the present embodiment provides a device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas, and the device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas comprises: a processor 71 and a memory 72; the memory 72 is used to store computer programs; the processor 71 is connected to the memory 72, and is used to execute the computer program stored in the memory 72, so that the device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas executes each step of the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas as described above.

[0148] Preferably, the memory may include a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0149] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0150] In summary, the optimization method for efficient drainage strategy of radially distributed water systems in coastal shallow hilly areas provided by this application has the following beneficial effects:

[0151] The present application provides an optimization method for efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas. It can optimize and adjust drainage strategies that meet the characteristics of the terrain and water systems according to the actual terrain and confluence conditions of radially distributed water systems in coastal shallow hilly areas. At the same time, it also broadens the scope of application of different drainage strategies for different terrain and water system scenarios and the ability of drainage systems to respond to extreme weather events. The present application can improve the decision-making ability and efficiency of drainage strategies and reduce the risk of waterlogging through analysis and optimization algorithms that combine hydrological and meteorological forecasts with real-time data.

[0152] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas, characterized in that: The following steps are involved: Different models are used to carry out drainage layout for the target area, and the regional drainage planning layout of the target coastal shallow hill area is obtained; Selecting the drainage planning layout of the area based on the drainage strategy to obtain a matching drainage plan; Obtain key drainage data for radially distributed water system areas in the target coastal shallow hill area; the key drainage data include: any one or more combinations of water level, flow, upstream rainfall, inland river water level, external river water level, inflow flow, outflow flow, and soil saturation at key locations; The key drainage data are analyzed, processed and evaluated in real time by the data processing center to obtain the key drainage data analysis results; the key drainage data analysis results include: the operating status of the current drainage system and the probability of waterlogging; Based on the analysis results of the key drainage data, the drainage strategy is optimized and adjusted, and the optimal drainage plan is selected by comparing different strategic plans; By evaluating the optimized drainage strategy, dynamically adjusting the joint operation plan under different boundary conditions according to the evaluation results, and applying the operation plans of different drainage facilities to the equipment scheduling and operation management system, the adaptability and efficiency of the drainage system to different scenarios and external boundaries can be improved.

2. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: The drainage layout includes: a drainage layout mode of regulation and storage + self-drainage that utilizes the capacity of the regulation and storage water body and the advantages of the terrain, and a drainage layout mode of regulation and storage + pumping that utilizes the combination of the capacity of the regulation and storage water body and the pumping station.

3. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 2 is characterized in that: include: In the drainage layout, when the ground elevation of the drainage area is higher than the outer river water level corresponding to the flood control standard, and the inner river water level does not overflow the embankment after being regulated by natural / artificial water bodies in the area, the drainage safety can be ensured by opening and closing the gate and gravity self-drainage. This drainage method is a storage + self-drainage mode; When the ground elevation of the drainage area is lower than the outer river water level corresponding to the flood control standard, and the inner river water level still overflows the embankment after natural / artificial water body regulation in the area and sluice gates waiting for an opportunity to discharge water, it is necessary to ensure drainage safety through water body regulation and pump station linkage. This drainage method is the storage + pumping mode.

4. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: The typical landform characteristics of the coastal shallow hill area in the target radially distributed water system area are that the inland / island area of ​​the coastal area is hilly in the middle; The terrain transitions from high to low to the coastal plain and then flows into the estuary of the Waijiang River. The water system is developed from the hilly area and is radially distributed in different catchment areas, flowing into the Waijiang River alone.

5. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: The data processing center includes: at least one server; and processing the key drainage data includes: The data processing center stores and analyzes the flow data of the same period to form a time series of rainfall, flow, inland river water level and external river water level; Based on the time series of rainfall, flow, inland river water level and external river water level, the relationship between inland river rainfall-flow and flow-water level is established; Based on the relationship between the inland river rainfall-flow and the flow-water level, combined with real-time meteorological information and pump station parameters, flood routing is performed according to a one-dimensional hydrodynamic model to analyze the relationship between the inland water level and the ground elevation under boundary conditions, including real-time rainfall, inflow of rivers and rainwater pipe networks, and water levels of inland and outer rivers, so as to assess flood risks; in, The flow data for the same period includes: any one or more combinations of the rainfall for the same period, the water level at the upstream starting point of the river during the same rainstorm period, the water level at the outlet of the river for the same period, the water level of the outer river for the same period, and the outlet of the river for the same period; The meteorological information and pump station parameters include: any one or more combinations of weather forecast, inland river inflow process line, river water level-volume curve, external river tide process line, sluice discharge curve, and pump station scale; The boundary conditions include: current rainfall, sluice size, and pump station scale.

6. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: To optimize the drainage strategy, topographic factors, hydrological factors, and meteorological factors should be considered; the optimal drainage solution can be selected by comparing different strategies, including: When the river flow capacity meets the peak discharge capacity of the pump station, increase the scale of the pump station; When the flow capacity of a river cannot match the scale of a pump station, causing the upstream water level to increase too quickly, it is necessary to further widen the river to increase the flow capacity; Under the condition of maintaining the basic functions of the water body, further reduce the pre-drawn water level; Adjust the size of the sluice gate to increase the discharge capacity; Promote the construction of sponge cities, control runoff and reduce confluence, and delay the occurrence of flood peaks.

7. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: The operating parameters of the drainage facilities include any one or more combinations of the start and stop of drainage pumps, the opening and closing of sluice gates, and the regulation of natural rivers, lakes and artificial facilities.

8. The method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas according to claim 1 is characterized in that: Also includes: Quickly activate emergency plans in extreme weather conditions.

9. An optimization system for efficient drainage strategies of radially distributed water systems in coastal shallow hilly areas, characterized in that: include: The drainage layout module is used to carry out drainage layout for the target area using different modes, and obtain the regional drainage planning layout of the target coastal shallow hill area; A drainage strategy selection module is used to select the drainage planning layout of the area based on the drainage strategy to obtain a matching drainage plan; A data acquisition module is used to acquire key drainage data of radially distributed water system areas in the target coastal shallow hill area; the key drainage data includes: any one or more combinations of water level, flow, upstream rainfall, inland river water level, external river water level, inflow flow, outflow flow, and soil saturation at key locations; A data processing and analysis module is used to perform real-time analysis, processing and evaluation of the key drainage data through a data processing center to obtain key drainage data analysis results; the key drainage data analysis results include: the current operation status of the drainage system and the probability of waterlogging; An optimization and adjustment module, used to optimize and adjust the drainage strategy based on the analysis results of the key drainage data, and select the optimal drainage plan by comparing different strategic plans; The feedback and application module is used to evaluate the optimized drainage strategy, dynamically adjust the joint operation plan under different boundary conditions according to the evaluation results, and apply the operation plans of different drainage facilities to the equipment scheduling and operation management system to improve the adaptability and efficiency of the drainage system to different scenarios and external boundaries; Emergency response module to handle drainage needs in extreme situations.

10. An efficient drainage strategy optimization device for radially distributed water systems in coastal shallow hilly areas, characterized in that: include: Processor and memory; The memory is used to store computer programs; The processor is connected to the memory and is used to execute the computer program stored in the memory, so that the device for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas executes the method for optimizing efficient drainage strategies for radially distributed water systems in coastal shallow hilly areas as described in any one of claims 1 to 8.

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