Road vertical elevation planning method, device, equipment, storage medium and product

Abstract

The invention discloses a road vertical elevation planning method, device and equipment, a storage medium and a product, and the method comprises the steps: determining a river surge range in a target region according to a road network structure, river surge water system distribution and rainwater pipeline layout in the target region; according to the river surge range, the inland river surge surface rate of the drainage subarea of the target area is counted; according to the pump station scale of the drainage subarea, the inland river surge surface rate and the preset rainfall duration, the inland river surge design water level corresponding to the drainage standard of the drainage subarea is obtained; and determining the road vertical elevation of the target area according to the designed water level of the inland river and the hydraulic gradient of the rainwater pipeline. According to the embodiment of the invention, the inland river surge design water level can be determined according to the natural characteristics and the drainage mechanism of the target area, and the road vertical elevation of the target area is determined according to the inland river surge design water level and the hydraulic slope of the rainwater pipeline, so that the method is more suitable for road vertical planning in a plain river network area, and the water safety in the plain river network area is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of urban planning, and in particular to a method, device, equipment, storage medium and product for planning vertical elevation of a road. Background Art

[0002] Vertical elevation is an important factor affecting the level of urban water security, especially in plain river network areas, where the terrain is low-lying and the water network is dense. The vertical elevation not only has a more significant impact on water security, but also has a more sensitive impact on pipeline laying. Vertical elevation is irreversible. Once implemented in plain river network areas, the basic framework of the water security system is formed. The current road vertical planning method is mainly based on the water level data provided by the water department to determine the road bottom line elevation (water level + 0.5m superelevation), and plan the vertical elevation of road intersections according to the requirements of the longitudinal slope of different levels of roads in the specification. However, the water department formulates the river water level based on the current ground, and the water level is generally low, resulting in a low bottom line vertical elevation, which cannot meet the urban waterlogging prevention and control standards; and the current road vertical planning method is based on the free outflow of rainwater, while the rainwater discharge in the plain river network area is basically submerged outflow. Therefore, the current road vertical planning method is not suitable for road vertical planning in plain river network areas. Summary of the invention

[0003] The present invention provides a method, device, equipment, storage medium and product for vertical elevation planning of roads, which can determine the design water level of inner rivers and streams according to the natural characteristics (distribution of river systems) and drainage mechanisms (drainage standards, rainfall duration, etc.) of the target area, and determine the vertical elevation of roads in the target area according to the design water level of inner rivers and streams and the hydraulic gradient of rainwater pipes. The method is suitable for vertical planning of roads in plain river network areas, and improves the safety of water safety planning in plain river network areas.

[0004] In order to achieve the above object, an embodiment of the present invention provides a road vertical elevation planning method, comprising: Determine the scope of rivers and streams in the target area based on the road network structure, river and stream system distribution and rainwater pipe layout in the target area; According to the range of the rivers and streams, the water surface ratio of the inner rivers and streams in the drainage subarea of ​​the target area is counted; According to the scale of the pump station in the drainage zone, the water surface ratio of the inner river and the preset rainfall duration, the inner river design water level corresponding to the drainage standard of the drainage zone is obtained; The vertical elevation of the road in the target area is determined based on the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

[0005] As an improvement of the above scheme, the scope of rivers and streams in the target area is determined according to the road network structure, river and stream water system distribution and rainwater pipe layout in the target area, including: Obtain a land use planning map and a rainwater engineering planning map in the target area, and extract road network and river water area spots in the land use planning map as a road network and water system planning map; Determine the layout of rainwater pipes in the target area according to the rainwater engineering planning map; According to the layout of the rainwater pipes and the road network water system planning map, the scope of the rivers and streams in the target area is delineated with the rivers and streams as the axis and the starting point of the rainwater pipes that discharge into the rivers and streams as the boundary.

[0006] As an improvement of the above solution, the method of counting the water surface rate of the inner rivers and streams in the drainage partition of the target area according to the river and stream range includes: According to the river range, determine the drainage zone of the target area and extract the river water area map of the drainage zone; According to the area of ​​the drainage zone and the area of ​​the river water area map, the inner river water surface rate of the drainage zone is obtained.

[0007] As an improvement of the above scheme, the design water level of the inner river corresponding to the drainage standard of the drainage zone is obtained according to the scale of the pump station of the drainage zone, the water surface rate of the inner river and the preset rainfall duration, including: Determine a preset rainfall duration according to the drainage standard of the drainage zone, and determine the minimum flow rate of the pump station of the drainage zone according to the preset rainfall duration; Determine the required storage water depth at each rainfall moment in the preset rainfall duration according to the minimum flow of the pump station and the water surface rate of the inland river; The normal water level of the inner river of the drainage zone is obtained, and the design water level of the inner river corresponding to the drainage standard of the drainage zone is obtained according to the normal water level of the inner river and the storage water depth.

[0008] As an improvement of the above solution, the vertical elevation of the road in the target area is determined according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe, including: Determine the vertical elevation of the cross-river road node in the target area according to the designed water level of the inner river, and use the vertical elevation of the cross-river road node as the reference elevation; Taking the river crossing road node as the origin, trace back along the drainage direction of the rainwater pipe, and determine the vertical elevation of the next road intersection according to the benchmark elevation and the length and hydraulic gradient of the rainwater pipe at the next road intersection; If there are still road intersections in the target area whose vertical elevations have not been determined, the vertical elevation of the current road intersection is determined based on the vertical elevation of the previous road intersection and the length and hydraulic gradient of the stormwater pipe of the current road intersection, until the vertical elevations of all road intersections in the target area have been determined, then the vertical elevations of the roads in the target area are obtained.

[0009] As an improvement of the above solution, after determining the vertical elevation of the road in the target area, the method further includes: Road planning is performed for the target area according to the vertical elevation of the road to improve water safety in the target area.

[0010] In order to achieve the above object, an embodiment of the present invention provides a road vertical elevation planning device, comprising: A river range determination module is used to determine the river range in the target area according to the road network structure, river system distribution and rainwater pipe layout in the target area; A river surface rate statistics module is used to count the inner river surface rate of the drainage zone of the target area according to the river range; A river water level design module, used to obtain the inner river design water level corresponding to the drainage standard of the drainage zone according to the pump station scale of the drainage zone, the inner river water surface ratio and the preset rainfall duration; The vertical elevation determination module is used to determine the vertical elevation of the road in the target area according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

[0011] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides a road vertical elevation planning device, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the above-mentioned road vertical elevation planning method when executing the computer program.

[0012] In order to achieve the above-mentioned purpose, an embodiment of the present invention also provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned road vertical elevation planning method.

[0013] To achieve the above objectives, an embodiment of the present invention further provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the steps of the above road vertical elevation planning method.

[0014] Compared with the prior art, the embodiments of the present invention disclose a method, device, equipment, storage medium and product for planning the vertical elevation of a road. The method determines the scope of rivers and streams in a target area according to the road network structure, river and stream water system distribution and rainwater pipe layout in the target area; based on the scope of rivers and streams, the water surface ratio of inner rivers and streams in the drainage partition of the target area is calculated; based on the scale of pump stations in the drainage partition, the water surface ratio of inner rivers and streams and the preset rainfall duration, the design water level of inner rivers and streams corresponding to the drainage standard of the drainage partition is obtained; based on the design water level of inner rivers and streams and the hydraulic gradient of the rainwater pipe, the vertical elevation of the road in the target area is determined. The embodiment of the present invention can determine the design water level of inner rivers and streams according to the natural characteristics of the target area (distribution of river systems) and drainage mechanisms (drainage standards, rainfall duration, etc.), and determine the vertical elevation of roads in the target area according to the design water level of inner rivers and streams and the hydraulic gradient of rainwater pipes. It is more suitable for the rainwater discharge method in plain river network areas. Using the hydraulic gradient of rainwater pipes as the longitudinal slope of roads is also more in line with the geomorphic characteristics of plain river network areas. The obtained vertical elevation of roads is suitable for the vertical planning of roads in plain river network areas, thereby improving the safety of water safety planning in plain river network areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a flow chart of a road vertical elevation planning method provided by an embodiment of the present invention; Figure 2 It is a structural schematic diagram of a road vertical elevation planning device provided by an embodiment of the present invention; Figure 3 It is a structural block diagram of a road vertical elevation planning device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that the terms "comprises" and "specifically" and any variations of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0018] See also Figure 1 , Figure 11 is a flow chart of a road vertical elevation planning method provided by an embodiment of the present invention, and the road vertical elevation planning method includes: S1, determining the scope of rivers and streams in the target area according to the road network structure, river and stream water system distribution and rainwater pipe layout in the target area; S2, according to the range of the river, counting the water surface rate of the inner river in the drainage area of ​​the target area; S3, obtaining the design water level of the inner river corresponding to the drainage standard of the drainage zone according to the scale of the pump station of the drainage zone, the water surface ratio of the inner river and the preset rainfall duration; S4, determining the vertical elevation of the road in the target area according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

[0019] Exemplarily, the road vertical elevation planning method is implemented by an elevation planning server, and the elevation planning server is capable of human-computer interaction. The elevation planning server obtains vector files of the land use planning map and the rainwater engineering planning map in the target area, determines the road network structure and river and creek water system distribution of the target area from the land use planning map, determines the layout of the rainwater pipes in the target area from the rainwater engineering planning map, and delineates the river and creek range in the target area with the river and creek as the axis and the starting point of the rainwater pipes discharged into the river and creek as the boundary. According to the river and creek range, the target area is divided into drainage zones, and the river and creek water area patches of the drainage zones are extracted from the land use planning map. The areas of the drainage zones and river and creek water area patches are counted, so as to calculate the water surface rate of the inner river and creek in the drainage zones. According to the level of drainage zoning, the corresponding drainage standard is found, and the scale of the pump station and the preset rainfall duration are determined according to the drainage standard, so as to calculate the design water level of the inner river corresponding to the drainage standard; the vertical elevation of the road in the target area is determined according to the design water level of the inner river and the hydraulic gradient of the rainwater pipe; the embodiment of the present invention can determine the design water level of the inner river according to the natural characteristics of the target area (distribution of river systems, etc.) and the drainage mechanism (drainage standard, rainfall duration, etc.), and determine the vertical elevation of the road in the target area according to the design water level of the inner river and the hydraulic gradient of the rainwater pipe, which is more suitable for the rainwater discharge method in the plain river network area, and uses the hydraulic gradient of the rainwater pipe as the longitudinal slope of the road, which is also more in line with the geomorphic characteristics of the plain river network area, and the obtained vertical elevation of the road is suitable for the vertical planning of roads in the plain river network area.

[0020] Specifically, the step S1 includes: S11, obtaining a land use planning map and a rainwater engineering planning map within the target area, and extracting road network and river water area spots in the land use planning map as a road network and water system planning map; S12, determining the layout of rainwater pipes in the target area according to the rainwater engineering planning map; S13, based on the layout of the rainwater pipes and the road network water system planning map, the river range in the target area is delineated with the river as the axis and the starting point of the rainwater pipes discharged into the river as the boundary.

[0021] Exemplarily, in the embodiment of the present invention, an extraction and analysis model is pre-trained, and the extraction and analysis model is obtained by pre-training based on big data. The extraction and analysis model can be a convolutional neural network. After the land use planning map and the rainwater engineering planning map are input into the extraction and analysis model, the road network, river water area spots, and rainwater pipe layout spots can be selected from the land use planning map and the rainwater engineering planning map, and the extraction and analysis model will automatically output the road network, river water area spots, and rainwater pipe layout spots of the target area. Alternatively, the image recognition technology in the AI ​​intelligent detection technology is used to select the road network, river water area spots, and rainwater pipe layout spots of the target area from the land use planning map and the rainwater engineering planning map. The road network and river water area spots of the target area are used as the road network water system planning map, and the rainwater pipe layout spots and the road network water system planning map are aligned in coordinates. After the spots are merged and other processing, in the processed road network water system planning map, the river is used as the axis and the starting point of the rainwater pipe discharged into the river is used as the boundary to delineate the river range in the target area.

[0022] Specifically, the step S2 includes: S21, determining the drainage partition of the target area and extracting the river water area map of the drainage partition according to the river range; S22, obtaining the water surface ratio of the inner river and creek in the drainage zone according to the area of ​​the drainage zone and the area of ​​the river and creek water area map.

[0023] Exemplarily, according to the basic principles of drainage zoning stipulated in the relevant documents of the target area (such as "Urban Drainage Engineering Planning Specifications [with Explanations of Articles]", etc.), the river and creek range is divided to determine the drainage zoning of the target area, and the river and creek water area spots of the drainage zoning are extracted from the river and creek range in the road network water system planning map. For example, the image recognition model in the AI ​​intelligent detection technology is used to automatically extract and identify the river and creek water area spots based on big data training to obtain the river and creek water area spots of the drainage zoning within the river and creek range, and the area of ​​the drainage zoning and the area of ​​the river and creek water area spots are counted, and the inner river and creek water surface rate of the drainage zoning is calculated according to the calculation formula of the inner river and creek water surface rate. The calculation formula of the inner river and creek water surface rate is: (1), in, The water surface ratio of the inner river in the drainage zone; The area of ​​the river water area in the drainage zone, in km 2 ; is the area of ​​the drainage zone, in km 2 ; is the total number of river water area patches. It is mainly used to calculate the corresponding drainage standards and river storage depths under different rainfall durations.

[0024] Specifically, the step S3 includes: S31, determining a preset rainfall duration according to the drainage standard of the drainage zone, and determining a minimum flow rate of a pump station in the drainage zone according to the preset rainfall duration; S32, determining the required storage water depth at each rainfall moment in the preset rainfall duration according to the minimum flow of the pump station and the water surface rate of the inland river; S33, obtaining the normal water level of the inner river of the drainage zone, and obtaining the designed water level of the inner river corresponding to the drainage standard of the drainage zone according to the normal water level of the inner river and the storage water depth.

[0025] Exemplarily, in the embodiment of the present invention, a database with one-to-one correspondence between drainage standards and rainfall durations is pre-set. According to the basic principles of drainage zoning specified in the relevant documents of the target area (such as "Urban Drainage Engineering Planning Specifications [Attached Articles and Explanations]", etc.), the drainage standards of the drainage zoning are determined, and the corresponding rainfall duration is found in the database according to the drainage standards, so as to determine the corresponding rainfall; according to the preset rainfall duration, the minimum flow of the pump station in the drainage zoning is determined according to the calculation formula of the pump station flow, and the calculation formula of the pump station flow is: (2), in, The minimum flow rate of the pump station required for drainage design with rainfall duration T; ψ is the comprehensive runoff coefficient; is the area of ​​the drainage zone; It is the rainfall corresponding to the drainage design rainfall duration T; T is the drainage design rainfall duration, which is generally set to 24h.

[0026] In order to fully consider the possibility of disasters caused by short rainfall duration, the river storage depth is calculated according to the calculation formula of river storage depth, taking 1h, 3h, 6h, 12h, and 24h rainfall conditions as examples. The calculation formula for the water depth of the river is: (3), in, Duration of rainfall i of rainfall; i is the rainfall duration, where i=1, 3, 6, 12, 24; It is the water surface ratio of the inner river in the drainage area.

[0027] The design water level of the inner river is calculated using the calculation formula of the design water level of the inner river. , the calculation formula for the design water level of the inner river is: = +max { }(4), in, It is the normal water level of the inland river, that is, the average tidal level of the outer river.

[0028] It is worth mentioning that the average tidal level of the outer river is obtained directly from the local water affairs department. The normal water level of rivers and creeks in the plain river network area is the average tidal level of the outer river. The average tidal level of the outer river is obtained in order to determine the normal water level of rivers and creeks within the planning scope, and then calculate the design water level of rivers and creeks within the corresponding design drainage standards.

[0029] Specifically, the step S4 includes: S41, determining the vertical elevation of the cross-river road node in the target area according to the designed water level of the inner river, and taking the vertical elevation of the cross-river road node as the reference elevation; S42, taking the cross-river road node as the origin, tracing back along the drainage direction of the rainwater pipe, and determining the vertical elevation of the next road intersection according to the reference elevation and the length and hydraulic gradient of the rainwater pipe at the next road intersection; S43, if there are still road intersections in the target area whose vertical elevations have not been determined, the vertical elevation of the current road intersection is determined according to the vertical elevation of the previous road intersection and the length and hydraulic gradient of the rainwater pipe of the current road intersection, until the vertical elevations of all road intersections in the target area have been determined, then the vertical elevations of the roads in the target area are obtained.

[0030] For example, in a plain river network area, roads and river networks frequently intersect. To ensure traffic comfort, the vertical elevation of the road node across the river is selected as the benchmark elevation. The calculation formula for the road vertical elevation is used to calculate the road vertical elevation. The calculation formula for the road vertical elevation is: (5), in, is the vertical elevation of the node road across the river, in m, Clearance for the bridge, is the thickness of the bridge structure.

[0031] Calculate the vertical elevation of the road from downstream to upstream according to the drainage direction of the rainwater pipe In plain river network areas, rainwater pipes are all submerged outflows, and the requirement for waterlogging prevention is that the rainwater inspection wells do not overflow. The height difference of the road is equivalent to the water loss of the pipe. Taking the cross-river road node as the original point, trace the rainwater pipe upward in the reverse direction, and calculate the vertical elevation of the first road intersection according to the calculation formula of the vertical elevation of the road intersection. The calculation formula of the vertical elevation of the road intersection is: (6), in, For the The vertical elevation of a road intersection, For To Length of stormwater pipes at each road intersection; For the To Hydraulic gradient of stormwater pipes at a road intersection.

[0032] For example, the vertical elevation of the second road intersection ,in, is the length of the stormwater pipe section; is the hydraulic gradient of this section of the rainwater pipe; and by analogy, the vertical elevation of the road intersection upstream of the rainwater pipe is calculated. It is worth noting that under the flooded outflow condition, the Darcy-Weisbach formula is used to calculate the hydraulic gradient , , where n is the pipe roughness coefficient, D is the diameter of the rainwater pipe (mm), and Q is the design flow rate of the rainwater pipe.

[0033] For example, assuming that the calculated design water level of the inner river is 5.9m, the bridge clearance requirement is 0.5m, and the bridge structure thickness is 1.5m, the vertical elevation of the cross-river road node is 5.9+0.5+1.5=7.9m. Going upstream along the rainwater pipe discharge direction, the length of the rainwater pipe between the first road intersection and the cross-river road node is 200m, and the hydraulic gradient of this section of the rainwater pipe is 0.002, so the vertical elevation of the first road intersection is 7.9+200×0.002=8.3m; the length of the rainwater pipe between the second road intersection and the first road intersection is 300m, and the hydraulic gradient of this section of the rainwater pipe is 0.001, so the vertical elevation of the second road intersection is 8.3+300×0.001=8.6m, and so on, until the vertical elevations of all road intersections in the target area have been determined, the vertical elevation of the road in the target area is obtained.

[0034] Furthermore, after determining the vertical elevation of the road in the target area, the method further includes: S5, planning roads for the target area according to the vertical elevation of the road to improve water safety in the target area.

[0035] Specifically, during the construction of the road, the road engineering design software (such as Hongye Municipal Road Design Software) is used to first perform the road plane design, including the road centerline and the corresponding pile number setting, and the road vertical elevation calculated by the embodiment of the present invention is associated with the pile number corresponding to the road centerline. The software automatically calculates the road slope according to the road pile number and the corresponding vertical elevation. At the slope change, according to the road grade and the design speed, in accordance with the requirements of the "Urban Road Engineering Design Code" (CJJ 37-2012) (2016 Edition), the vertical curve radius is input, and the corresponding road longitudinal curve will be generated. Since the vertical elevation calculation method of the embodiment of the present invention uses the hydraulic gradient of the rainwater pipe as the road longitudinal slope, the road slope conforms to the landform characteristics of the plain river network and will not violate the maximum longitudinal slope and slope length requirements in the "Urban Road Engineering Design Code" (CJJ 37-2012) (2016 Edition).

[0036] According to the method of the embodiment of the present invention, the vertical elevation of the road intersection is calculated, and the planned vertical elevation, rainwater pipe network, river and drainage pump station are coupled to model, and the flood risk and inundation situation of the city under extreme rainstorm conditions are evaluated to provide technical support for emergency rescue. Using the InforWoks ICM hydraulic model software, first establish a 1D model, that is, the diameter of the rainwater pipe, the bottom elevation of the upstream and downstream pipes of the inspection well, the cross-sectional parameters of the river and the flow parameters of the drainage pump station are input into the model, the ground elevation of the inspection well is calculated using the planned road intersection vertical elevation or by interpolation, and the rainwater inspection well catchment area is automatically divided according to the Thiessen polygon method, and finally the designed rainfall is input into the model. On the basis of the 1D model, a 2D model is established, that is, the planned vertical elevation of the road intersection is used to create a ground elevation model (TIN model), in which the vertical elevation of the road can be directly used as the vertical elevation of the intersection, and the vertical elevation of residential, commercial, public service and other construction land is 0.2m higher than the vertical elevation of the adjacent road intersection; the boundary lines of residential, commercial, public service and other construction land are defined as water-blocking structures, and finally grid processing is performed. Using the 2D model, the overflow process of rainwater from the rainwater inspection well under heavy rain conditions can be simulated on the ground, and then the data such as the scope of water accumulation, water accumulation depth and water withdrawal time can be counted, so as to assess the risk of flooding and provide technical support for emergency rescue.

[0037] A method for planning the vertical elevation of a road disclosed in an embodiment of the present invention determines the scope of rivers and streams in a target area according to the road network structure, river and stream water system distribution and rainwater pipe layout in the target area; based on the scope of rivers and streams, the water surface ratio of inner rivers and streams in the drainage subdistrict of the target area is counted; based on the scale of pump stations in the drainage subdistrict, the water surface ratio of inner rivers and streams and the preset rainfall duration, the design water level of inner rivers and streams corresponding to the drainage standard of the drainage subdistrict is obtained; based on the design water level of inner rivers and streams and the hydraulic gradient of the rainwater pipe, the vertical elevation of the road in the target area is determined. The embodiment of the present invention can determine the design water level of inner rivers and streams according to the natural characteristics of the target area (distribution of river systems) and drainage mechanisms (drainage standards, rainfall duration, etc.), and determine the vertical elevation of roads in the target area according to the design water level of inner rivers and streams and the hydraulic gradient of rainwater pipes. It is more suitable for the rainwater discharge method in plain river network areas. Using the hydraulic gradient of rainwater pipes as the longitudinal slope of roads is also more in line with the geomorphic characteristics of plain river network areas. The obtained vertical elevation of roads is suitable for the vertical planning of roads in plain river network areas, thereby improving the safety of water safety planning in plain river network areas.

[0038] See also Figure 2 , Figure 2 1 is a schematic diagram of the structure of a road vertical elevation planning device 10 provided in an embodiment of the present invention. The road vertical elevation planning device 10 comprises: The river range determination module 11 is used to determine the river range in the target area according to the road network structure, river system distribution and rainwater pipe layout in the target area; A river surface rate statistics module 12 is used to count the inner river surface rate of the drainage zone of the target area according to the river range; The river water level design module 13 is used to obtain the inner river water level corresponding to the drainage standard of the drainage zone according to the pump station scale of the drainage zone, the inner river water surface ratio and the preset rainfall duration; The vertical elevation determination module 14 is used to determine the vertical elevation of the road in the target area according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

[0039] Specifically, the river range determination module 11 is used to: Obtain a land use planning map and a rainwater engineering planning map in the target area, and extract road network and river water area spots in the land use planning map as a road network and water system planning map; Determine the layout of rainwater pipes in the target area according to the rainwater engineering planning map; According to the layout of the rainwater pipes and the road network water system planning map, the scope of the rivers and streams in the target area is delineated with the rivers and streams as the axis and the starting point of the rainwater pipes that discharge into the rivers and streams as the boundary.

[0040] Specifically, the river surface rate statistics module 12 is used to: According to the river range, determine the drainage zone of the target area and extract the river water area map of the drainage zone; According to the area of ​​the drainage zone and the area of ​​the river water area map, the inner river water surface rate of the drainage zone is obtained.

[0041] Specifically, the river water level design module 13 is used to: Determine a preset rainfall duration according to the drainage standard of the drainage zone, and determine the minimum flow rate of the pump station of the drainage zone according to the preset rainfall duration; Determine the required storage water depth at each rainfall moment in the preset rainfall duration according to the minimum flow of the pump station and the water surface rate of the inland river; The normal water level of the inner river of the drainage zone is obtained, and the design water level of the inner river corresponding to the drainage standard of the drainage zone is obtained according to the normal water level of the inner river and the storage water depth.

[0042] Specifically, the vertical elevation determination module 14 is used to: Determine the vertical elevation of the cross-river road node in the target area according to the designed water level of the inner river, and use the vertical elevation of the cross-river road node as the reference elevation; Taking the river crossing road node as the origin, trace back along the drainage direction of the rainwater pipe, and determine the vertical elevation of the next road intersection according to the benchmark elevation and the length and hydraulic gradient of the rainwater pipe at the next road intersection; If there are still road intersections in the target area whose vertical elevations have not been determined, the vertical elevation of the current road intersection is determined based on the vertical elevation of the previous road intersection and the length and hydraulic gradient of the stormwater pipe of the current road intersection, until the vertical elevations of all road intersections in the target area have been determined, then the vertical elevations of the roads in the target area are obtained.

[0043] Furthermore, the road vertical elevation planning device 10 further includes: The regional road planning module is used to plan roads for the target area according to the vertical elevation of the road to improve water safety in the target area.

[0044] A road vertical elevation planning device 10 provided in an embodiment of the present invention can implement all the processes of the road vertical elevation planning method of the above-mentioned embodiment. The functions of each module in the device and the technical effects achieved are respectively the same as the functions and technical effects achieved by the road vertical elevation planning method of the above-mentioned embodiment, and will not be repeated here.

[0045] See also Figure 3, Figure 3 1 is a schematic diagram of the structure of a road vertical elevation planning device 20 provided in an embodiment of the present invention. The road vertical elevation planning device 20 of this embodiment includes: a processor 21, a memory 22, and a computer program stored in the memory 22 and executable on the processor 21. When the processor 21 executes the computer program, the steps in the above-mentioned road vertical elevation planning method embodiment are implemented. Alternatively, when the processor 21 executes the computer program, the functions of each module in the above-mentioned road vertical elevation planning device embodiment are implemented.

[0046] Exemplarily, the computer program may be divided into one or more modules, which are stored in the memory 22 and executed by the processor 21 to implement the present invention. The one or more modules may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the road vertical elevation planning device 20.

[0047] The road vertical elevation planning device 20 can be a computing device such as a desktop computer, a notebook, a PDA, and a cloud server. The road vertical elevation planning device 20 can include, but is not limited to, a processor 21 and a memory 22. Those skilled in the art can understand that the schematic diagram is only an example of the road vertical elevation planning device 20 and does not constitute a limitation on the road vertical elevation planning device 20. It can include more or less components than shown in the figure, or combine certain components, or different components. For example, the road vertical elevation planning device 20 can also include input and output devices, network access devices, buses, etc.

[0048] The processor 21 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc. The processor 21 is the control center of the road vertical elevation planning device 20, and uses various interfaces and lines to connect various parts of the entire road vertical elevation planning device 20.

[0049] The memory 22 can be used to store the computer program and / or module. The processor 21 realizes various functions of the road vertical elevation planning device 20 by running or executing the computer program and / or module stored in the memory 22 and calling the data stored in the memory 22. The memory 22 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 22 can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0050] Wherein, if the module integrated in the road vertical elevation planning device 20 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor 21. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media does not include electrical carrier signals and telecommunication signals.

[0051] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0052] An embodiment of the present invention also provides a computer-readable storage medium, which includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the road vertical elevation planning method as described in the above embodiment.

[0053] In addition, an embodiment of the present invention further provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the steps of the road vertical elevation planning method of the above embodiment.

[0054] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A road vertical elevation planning method, characterized in that: include: Determine the scope of rivers and streams in the target area based on the road network structure, river and stream system distribution and rainwater pipe layout in the target area; According to the range of the rivers and streams, the water surface ratio of the inner rivers and streams in the drainage subarea of ​​the target area is counted; According to the scale of the pump station in the drainage zone, the water surface ratio of the inner river and the preset rainfall duration, the inner river design water level corresponding to the drainage standard of the drainage zone is obtained; The vertical elevation of the road in the target area is determined based on the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

2. The road vertical elevation planning method as claimed in claim 1, characterized in that: Determining the scope of rivers and streams in the target area according to the road network structure, river and stream system distribution and rainwater pipe layout in the target area includes: Obtain a land use planning map and a rainwater engineering planning map in the target area, and extract the road network and river water area spots in the land use planning map as a road network and water system planning map; Determine the layout of rainwater pipes in the target area according to the rainwater engineering planning map; According to the layout of the rainwater pipes and the road network water system planning map, the scope of the rivers and streams in the target area is delineated with the rivers and streams as the axis and the starting point of the rainwater pipes that discharge into the rivers and streams as the boundary.

3. The road vertical elevation planning method according to claim 1, characterized in that: The method of calculating the water surface rate of the inner rivers and streams in the drainage zone of the target area according to the river and stream range includes: According to the river range, determine the drainage zone of the target area and extract the river water area map of the drainage zone; According to the area of ​​the drainage zone and the area of ​​the river water area map, the inner river water surface rate of the drainage zone is obtained.

4. The road vertical elevation planning method according to claim 1, characterized in that: The method of obtaining the inner river design water level corresponding to the drainage standard of the drainage zone according to the pump station scale of the drainage zone, the inner river surface rate and the preset rainfall duration includes: Determine a preset rainfall duration according to the drainage standard of the drainage zone, and determine the minimum flow rate of the pump station of the drainage zone according to the preset rainfall duration; Determine the required storage water depth at each rainfall moment in the preset rainfall duration according to the minimum flow of the pump station and the water surface rate of the inland river; The normal water level of the inner river of the drainage zone is obtained, and the design water level of the inner river corresponding to the drainage standard of the drainage zone is obtained according to the normal water level of the inner river and the storage water depth.

5. The road vertical elevation planning method according to claim 1, characterized in that: Determining the vertical elevation of the road in the target area according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe includes: Determine the vertical elevation of the cross-river road node in the target area according to the designed water level of the inner river, and use the vertical elevation of the cross-river road node as the reference elevation; Taking the river crossing road node as the origin, trace back along the drainage direction of the rainwater pipe, and determine the vertical elevation of the next road intersection according to the benchmark elevation and the length and hydraulic gradient of the rainwater pipe at the next road intersection; If there are still road intersections in the target area whose vertical elevations have not been determined, the vertical elevation of the current road intersection is determined based on the vertical elevation of the previous road intersection and the length and hydraulic gradient of the stormwater pipe of the current road intersection, until the vertical elevations of all road intersections in the target area have been determined, then the vertical elevations of the roads in the target area are obtained.

6. The road vertical elevation planning method according to claim 1, characterized in that: After determining the vertical elevation of the road in the target area, the method further includes: Road planning is performed for the target area according to the vertical elevation of the road to improve water safety in the target area.

7. A road vertical elevation planning device, characterized in that: include: A river range determination module is used to determine the river range in the target area according to the road network structure, river system distribution and rainwater pipe layout in the target area; A river surface rate statistics module is used to count the inner river surface rate of the drainage area of ​​the target area according to the river range; A river water level design module, used to obtain the inner river design water level corresponding to the drainage standard of the drainage zone according to the pump station scale of the drainage zone, the inner river water surface ratio and the preset rainfall duration; The vertical elevation determination module is used to determine the vertical elevation of the road in the target area according to the designed water level of the inner river and the hydraulic gradient of the rainwater pipe.

8. A road vertical elevation planning device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, the road vertical elevation planning method as claimed in any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the road vertical elevation planning method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product is stored in a storage medium, and the program product is executed by at least one processor to implement the steps of the road vertical elevation planning method as described in any one of claims 1-6.

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