JP2021196849A - Inner water flooding analysis device, inner water flooding analysis method, inner water flooding analysis program, computer-readable recording medium and storage apparatus - Google Patents

Abstract

To analyze inner water flooding according to actual occurrence processes.SOLUTION: An inner water flooding analysis device for analyzing inner water flooding in a specific area comprises: an input unit 10 which acquires information about effective precipitation; a dam inner area flooding flow analysis unit 31 which analyzes a dam inner area flooding flow on the basis of effective precipitation data acquired by the input unit 10; an inflow area flow-down analysis unit 32 which analyzes flow-down to an area to which the dam inner area flooding flow analyzed by the dam inner area flooding flow analysis unit 31 flows; a drainage analysis unit 36 which analyzes drainage to a drainage facility on the basis of the inflow area flow-down analysis result analyzed by the inflow area flow-down analysis unit 32; and a display unit 40 which displays the drainage analysis result analyzed by the drainage analysis unit 36. With this configuration, the dam inner area flooding flow can be properly analyzed regardless of presence/absence of maintenance of a sewer.SELECTED DRAWING: Figure 1

Description

The present invention relates to an inland waters inundation analysis device, an inland waters inundation analysis method, an inland waters inundation analysis program, a computer-readable recording medium, and a stored device.

Natural disasters such as guerrilla rainstorms, which are thought to be caused by abnormal weather in recent years, have caused frequent damage such as flooding and inundation of rivers. Inundation and inundation are the so-called inundation of the inland embankment (hereinafter referred to as "inland inundation"), in which inundation occurs in the area surrounded by the embankment, in addition to the so-called out-of-embankment inundation caused by the inundation of the river. Call.) Is known.

When conducting inundation analysis in the event of inland inundation, the current guideline is "Inland Inundation Estimated Area Map Creation Manual (Draft)", Water and Disaster Management Bureau, Ministry of Land, Infrastructure, Transport and Tourism, PP30-31, H28.4. .. (Non-Patent Document 1: Hereinafter referred to as "inland water guideline"), the procedure shown in FIG. 3 was performed according to the inundation model.

However, although this method was constructed on the premise that a sewer pipe is maintained, there is a problem that it cannot be applied to an area where a sewer pipe is not maintained. Even in various parts of Japan, sewer pipes are often not maintained except in urban areas, and it has been practically difficult to analyze inland floods in such areas.

Japanese Patent No. 560507

"Inland Inundation Estimated Area Map Creation Manual (Draft)" Ministry of Land, Infrastructure, Transport and Tourism Water and Disaster Management Bureau, PP30-31, H28.4. "Technical Guidelines for Watershed Storage Facilities (Draft)" Association for Rainwater Storage and Infiltration Technology, P39, H19.3. "Stormwater Infiltration Facility Technical Guideline (Draft) Survey / Planning" Association for Rainwater Storage and Infiltration Technology, P46, H18.9. "Guide for real-time inundation prediction simulation (draft)" Ministry of Land, Infrastructure, Transport and Tourism River Bureau, P. 2-30, H17.6. "Land improvement business plan design standard and operation / explanation plan" drainage "" Agricultural Engineering Society, P243, H18.3. "Flood Simulation Manual (Draft)" Civil Engineering Research Material No. 3400: Public Works Research Institute, P16, H8.2. "Technical Guidelines for Watershed Storage Facilities (Draft)" Association for Rainwater Storage and Infiltration Technology, PP48-49, H19.3. "Stormwater Infiltration Facility Technical Guideline (Draft) Survey / Planning" Association for Rainwater Storage and Infiltration Technology, PP51-53, H18.9. "Land improvement business plan design standard and operation / explanation plan" drainage "" Agricultural Engineering Society, P239, H18.3. "Guide for real-time inundation prediction simulation (draft)" Ministry of Land, Infrastructure, Transport and Tourism River Bureau, P. 2-42, H17.6.

The present invention has been made in view of such a background, and one of the objects thereof is an inland waters inundation analyzer capable of analyzing inland waters, an inland waters inundation analysis method, an inland waters inundation analysis program, and a computer. It is an object of the present invention to provide a recording medium and a storage device that can be read by the user.

Means for Solving Problems and Effects of Invention

According to the inland water inundation analysis device according to the first aspect of the present invention, it is an inland water inundation analysis device for analyzing inland water inundation in a specific area, and is an input for acquiring information on effective rainfall amount. Based on the effective rainfall data acquired by the input section, the inland inundation analysis section that analyzes the inland inundation flow, and the inflow area where the inundation inflow analysis section analyzes the inland flood flow. Based on the inflow area flow analysis unit that analyzes the inflow area flow analysis unit and the inflow area flow analysis unit analyzed by the inflow area flow analysis unit, the wastewater analysis unit that analyzes the drainage to the drainage facility and the wastewater analysis unit analyzed. It can be provided with a display unit for displaying the wastewater analysis result. With the above configuration, it is possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Further, according to the inland water inundation analysis device according to the second aspect of the present invention, in addition to the above configuration, the inflow area inflow analysis unit further analyzes the inflow area inflow analysis unit. It is possible to provide an inflow and overflow analysis unit for the inflow and overflow of the inflow facility existing in the inflow area.

Further, according to the inland waters inundation analysis device according to the third aspect of the present invention, in addition to any of the above configurations, the inflow facility inflow analysis unit further analyzes the inflow facility inflow analysis unit. As a flow facility existing in the area where the inundation flow in the embankment flows, an open channel inflow and overflow analysis unit that analyzes the inflow and overflow of the open channel can be provided.

Furthermore, according to the inland water inundation analysis device according to the fourth aspect of the present invention, in addition to any of the above configurations, the inflow facility inflow analysis unit further analyzes the inflow facility inflow analysis unit. As a flow facility existing in the area where the inflow of the inland sewage has flowed, a sewer pipe inflow and overflow analysis unit for analyzing the inflow and overflow of the sewer can be provided.

Furthermore, according to the inland waters inundation analysis device according to the fifth aspect of the present invention, in addition to any of the above configurations, the inflow area flow analysis unit further analyzes the inflow area inundation analysis unit. It is possible to provide a storage facility inflow / outflow analysis unit that analyzes the inflow and outflow of the storage facility existing in the area where the inflow of the inland embankment flows.

Furthermore, according to the inland water inundation analysis device according to the sixth aspect of the present invention, in addition to any of the above configurations, the inflow area inflow analysis unit further analyzes the inflow area inundation analysis unit. It is possible to provide an infiltration facility infiltration analysis unit that analyzes the infiltration into the ground in the infiltration facility existing in the area where the inundation flow in the embankment flows.

Furthermore, according to the inland water inundation analysis device according to the seventh aspect of the present invention, in addition to any of the above configurations, the wastewater analysis unit further analyzes the natural wastewater at the gutter gate or the water gate. It can be equipped with a wastewater analysis unit.

Furthermore, according to the inland water inundation analysis device according to the eighth aspect of the present invention, in addition to any of the above configurations, the wastewater analysis unit further analyzes the forced wastewater at the drainage pump station. Can be equipped with a part.

Furthermore, according to the inland water inundation analysis device according to the ninth aspect of the present invention, in addition to any of the above configurations, further, based on the wastewater analysis result analyzed by the wastewater analysis unit, drainage to the river It can be equipped with a river drainage analysis unit that analyzes the state of.

Furthermore, according to the inland water inundation analysis method according to the tenth aspect of the present invention, it is an inland water inundation analysis method for analyzing inland water inundation in a specific area, and information on effective rainfall is acquired. The process, the process of analyzing the inundation inflow in the embankment based on the acquired effective rainfall data, the process of analyzing the inflow to the area where the inflow of the inland inflow analyzed is analyzed, and the analysis of the inflow area inflow analyzed. Based on the result, it is possible to include a step of analyzing the drainage to the drainage facility and a step of displaying the analyzed wastewater analysis result on the display unit. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Furthermore, according to the inland waters inundation analysis method according to the eleventh aspect of the present invention, in addition to the above, the step of analyzing the flow to the area where the analyzed inland inundation inflow flows into the analyzed bank is described above. It can be a process of analyzing the inflow and overflow of the inflow facility existing in the area where the inland inundation flow flows.

Furthermore, according to the inland inundation analysis method according to the twelfth aspect of the present invention, in addition to any of the above, a step of analyzing inflow and overflow to the inflow facility is performed by the inland inundation analysis unit. The inflow facility existing in the area where the analyzed inundation inflow flows includes at least one of the steps of analyzing the inflow and overflow for the open channel and the step of analyzing the inflow and overflow for the sewer pipe. Can be done.

Furthermore, according to the inland water inundation analysis method according to the thirteenth aspect of the present invention, in addition to any of the above, the step of analyzing the inflow to the area where the analyzed inland inundation inflow flows into is described above. Infiltration into the ground in the process of analyzing inflow and outflow to the storage facility existing in the area where the analyzed inflow of inland inflow, or in the infiltration facility existing in the area of inflow of inundation inland analyzed above It can include at least one of the steps to be analyzed.

Furthermore, according to the inland water inundation analysis method according to the fourteenth aspect of the present invention, in addition to any of the above, a step of analyzing the drainage to the drainage facility based on the analysis result of the inflow area flow analysis is performed. It can include at least one of a step of analyzing natural wastewater at a gutter or a water gate, or a step of analyzing forced drainage at a drainage pump station.

Furthermore, according to the inland water inundation analysis program according to the fifteenth aspect of the present invention, it is an inland water inundation analysis program for analyzing inland water inundation in a specific area, and obtains information on effective rainfall. The function to analyze the inundation flow in the embankment based on the function and the effective rainfall data acquired by the effective rainfall information acquisition function, and the inflow to the area where the inundation inflow analyzed by the inland embankment analysis function flows. The function to analyze the drainage to the drainage facility based on the inflow area flow analysis result analyzed by the inflow area flow analysis function, and the wastewater analysis result analyzed by the drainage analysis function are displayed on the display unit. It is possible to realize the function to make the computer. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Furthermore, the computer-readable recording medium or storage device according to the sixteenth aspect of the present invention stores the above program. Recording media include CD-ROM, CD-R, CD-RW, flexible disc, magnetic tape, MO, DVD-ROM, DVD-RAM, DVD-R, DVD + R, DVD-RW, DVD + RW, and Blu-ray (registered). Trademarks), magnetic disks such as HD DVDs (AODs), optical disks, magneto-optical disks, semiconductor memories and other media capable of storing programs are included. Further, the program includes a program stored in the above-mentioned recording medium and distributed, and a program distributed by download through a network line such as the Internet. Further, the stored device includes a general-purpose or dedicated device in which the above program is implemented in a state where it can be executed in the form of software, firmware, or the like. Furthermore, each process or function included in the program may be executed by program software that can be executed by a computer, or the process of each part may be performed by hardware such as a predetermined gate array (FPGA, ASIC), or program software and hardware. It may be realized in a form in which a partial hardware module that realizes a part of the element of the wear is mixed.

It is a block diagram which shows the inland water inundation analysis apparatus which concerns on Embodiment 1 of this invention. It is an image diagram of the user interface screen of the inland water inundation analysis program. It is a flow chart which shows the flood analysis procedure of the inland waters guideline. It is a flow chart which shows the inundation mechanism of an actual phenomenon. It is a flow chart which shows the inland waters inundation model used in the inland waters inundation analysis method which concerns on Embodiment 1 of this invention. It is a schematic diagram which modeled a paddy field tank. It is a schematic diagram which shows the discharge hole of a basin storage facility. It is a schematic diagram which shows the structure of a gutter gate and a water gate (drainage port). It is a schematic cross-sectional view which shows the state of forced drainage. It is a hydrograph of forced drainage.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present invention, and the present invention is not specified as the following. Further, the present specification does not specify the members shown in the claims as the members of the embodiment. In particular, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments are not intended to limit the scope of the present invention to the specific description, but are merely described. It's just an example. The size and positional relationship of the members shown in each drawing may be exaggerated for the sake of clarity. Further, in the following description, members of the same or the same quality are shown with the same name and reference numeral, and detailed description thereof will be omitted as appropriate. Further, each element constituting the present invention may be configured such that a plurality of elements are composed of the same member and the plurality of elements are combined with one member, or conversely, the function of one member is performed by the plurality of members. It can also be shared and realized.

The connection between the inland water inundation analysis device used in the embodiment of the present invention and a computer, printer, external storage device or other peripheral device for operations, control, display, other processing, etc. connected to the device is, for example, Serial or parallel connections such as IEEE 1394, RS-232x, RS-422, RS-423, RS-485, USB, or electrical or magnetic via networks such as 10BASE-T, 100BASE-TX, 1000BASE-T, etc. Communicate by connecting objectively and optically. The connection is not limited to a physical connection using a wire, but may be a wireless LAN such as IEEE802.1x, a wireless connection using Bluetooth (registered trademark), other radio waves such as NFC, infrared rays, optical communication, or the like. Further, a memory card, a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like can be used as a recording medium for exchanging data and storing settings. In the present specification, the inland waters inundation analysis device is used to include not only the main body of the inland waters inundation analysis device but also an inundation degree real-time prediction system in which peripheral devices such as a computer and an external storage device are combined.
(Inland water inundation analysis device 100)

FIG. 1 shows the inland water inundation analysis device 100 according to the first embodiment of the present invention. The inland waters inundation analysis device 100 shown in this figure includes an input unit 10, an operation unit 20, a calculation unit 30, a display unit 40, and a data storage unit 50. The inland waters inundation analysis device 100 may be configured by using dedicated hardware or by installing an inland waters inundation analysis program on a general-purpose or dedicated computer.
(Input unit 10)

The input unit 10 is an input interface for receiving data input from the outside, and functions as a data acquisition unit for acquiring necessary information by accessing an external database, for example, by communicating with an external device or the like. .. The data acquisition unit has a communication function for connecting to a specific network via a general-purpose network line such as the Internet or a dedicated line. The input unit 10 realizes the function of the effective rainfall acquisition unit 11 for acquiring information on the effective rainfall.

The effective rainfall amount is, for example, acquired by the input unit 10 as rainfall data via a communication network. This makes it easy to update to the latest information one by one.

The rainfall data includes the analysis rainfall and short-term precipitation forecast of the predicted area and the arbitrarily set rainfall. Here, the analyzed rainfall is the amount of rainfall actually rained within a predetermined time in the past from the present time. The short-term precipitation forecast is the amount of rainfall that is expected to rain within a predetermined time from the current time. In the present embodiment, this predetermined time is set to every hour. For example, the rainfall data distributed by the Meteorological Business Support Center is distributed by updating the analyzed rainfall and short-term precipitation forecast every 30 minutes with the predicted rainfall up to 6 hours ahead in the range where the topographical data is divided by a 1 km mesh. Therefore, the input unit 10 sequentially acquires such data and sends it to the calculation unit 30. Further, the weather data captured by the input unit 10 can be stored in the data storage unit 50.

Further, the input unit 10 also functions as a topographical information acquisition unit 12 for acquiring information on the topography of a specific area to be analyzed for inland waters inundation. The topographical information acquisition unit 12 is a member for acquiring topographical data of the area to be inundated analysis. As the topographical data input by the topographical information acquisition unit 12, for example, a map created by the Geographical Survey Institute of the Ministry of Land, Infrastructure, Transport and Tourism, three-dimensional point group data acquired by a drone, and the like can be used. The inland waters inundation analysis device 100 has a ground elevation model creation function for creating a ground elevation model from such topographical data. For example, the basic map information (digital elevation model which is mesh data of elevation) by the Geographical Survey Institute of the Ministry of Land, Infrastructure, Transport and Tourism is input from the topographical information acquisition unit 12, a ground elevation model of the flood analysis target area is created, and displayed on the display unit 40. Can be made to.

The collection destination of the rainfall data is not particularly specified. For example, the rainfall data distributed by the Japan Meteorological Agency or the Meteorological Business Support Center may be used, or an original rainfall observation device or the like may be installed to directly collect the rainfall data. Further, the predetermined time is not limited to one hour, and may be a shorter time (for example, 30 minutes) or a longer time (for example, 2 hours).
(Data storage unit 50)

The data storage unit 50 is a member for holding various data, and for example, a semiconductor memory, a hard disk, a portable medium, or the like can be used. For example, the function of the terrain data storage unit that holds the terrain data is realized. The terrain data holds height information at each position on the map. For example, it contains information such as the elevation and slope of each section in the predicted area. The position on the map can be managed by the data divided in a mesh shape.

Here, the section is a unit in which the predicted area is divided into 5 m squares in a grid pattern. In the first embodiment, 5 m square areas are further combined in 5 × 5 vertical and horizontal directions to form a 25 m square area as one section. The terrain data used for the calculation unit 30 uses the average value within this 25 m square. The data storage unit 50 may store the terrain data of 5 m square, or may store the average value of the terrain data in 25 m square in advance.

The size per section is not specified above. If accurate prediction results are required, one section may be smaller than 25 m. For example, one side can be set to 1 m, 2.5 m, 5 m, or any size can be set. Alternatively, if speeding up of arithmetic processing is prioritized, one section may be enlarged.

For example, detailed ground height data of 5m mesh (for example, basic map information by the Geographical Survey Institute of the Ministry of Land, Infrastructure, Transport and Tourism) and 2m mesh (for example, 2m mesh elevation data by the Japan Map Center) have been published and sold. Such ground elevation data may reflect drainage channels as surface undulations.
(Operation unit 20)

The operation unit 20 is a member for performing various operations and settings for the inland water inundation analysis device 100, and an input device such as a mouse, keyboard, or console can be used.
(Display unit 40)

The display unit 40 is a member for displaying a map of a specific area, displaying a hyetograph or a hydrograph, or confirming necessary settings and the like. As the display unit 40, for example, an LCD, an organic EL display, a CRT, or the like can be used. Further, by using a touch panel for the display unit, the operation unit and the display unit can be integrally configured.

The display unit 40 can display the inland inundation flow analyzed by the embankment inundation flow analysis unit, the inflow area inflow analysis result analyzed by the inflow area inflow analysis unit, the drainage analysis result analyzed by the drainage analysis unit, and the like. can. Such display may be performed by switching screens, or may be displayed side by side in a plurality of windows at the same time.

The display unit 40 is provided with a hydrograph display area for displaying a hydrograph showing a time change of the outflow amount in a specific area. A hydrograph is a diagram showing the relationship between time and flood water level or flood flow rate.
(Calculation unit 30)

The calculation unit 30 is a member for performing various calculations and processes, and is composed of, for example, a CPU. Further, not limited to the CPU, a SoC or a graphics processing unit (GPU) may be used. In addition, by using GPGPU (General-Purpose computing on Graphics Processing Units), the load on the CPU is reduced, the calculation speed is improved, and the prediction result is made more accurate, but it is also used by the display unit 40. It makes it easy for people to check the analysis results. For GPGPU, for example, CUDA (trade name) can be used.

The calculation unit 30 realizes the functions of the inflow area inundation analysis unit 31, the inflow area inflow analysis unit 32, the wastewater analysis unit 36, and the river drainage analysis unit 37.

The embankment inundation flow analysis unit 31 is a member for analyzing the embankment inundation flow based on the effective rainfall data acquired by the input unit 10.

The inflow area inflow analysis unit 32 is a member for analyzing the inflow to the area where the inflow area inflow analysis unit 31 has analyzed the inflow area inflow analysis unit 31.

The wastewater analysis unit 36 is a member for analyzing the drainage to the drainage facility based on the inflow area flow analysis result analyzed by the inflow area flow analysis unit 32.

The river drainage analysis unit 37 is a member for analyzing the state of drainage to the river based on the wastewater analysis result analyzed by the wastewater analysis unit 36.

With such a configuration, it is possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

The inflow area inflow analysis unit 32 includes an inflow facility inflow and overflow analysis unit 33, a storage facility inflow and outflow analysis unit 34, and an inflow facility infiltration analysis unit 35.

The inflow and overflow analysis unit 33 for the inflow facility is a member for analyzing the inflow and overflow to the inflow facility existing in the area where the inflow of the inland inflow analyzed by the inflow analysis unit 31 in the embankment.

The inflow and overflow analysis unit 33 of the inflow facility includes an open channel inflow and overflow analysis unit 33a and a sewer pipe inflow and overflow analysis unit 33b.

The open channel inflow overflow analysis unit 33a is a member for analyzing the inflow and overflow to the open channel as a flow facility existing in the area where the inland inflow analysis unit analyzed by the inland inflow analysis unit 31 flows.

The sewer inflow overflow analysis unit 33b is a member for analyzing the inflow and overflow to the sewer pipe as a flow facility existing in the area where the inflow inflow is analyzed by the inland inundation analysis unit 31. be.

The storage facility inflow / outflow analysis unit 34 is a member for analyzing the inflow and outflow to the storage facility existing in the area where the inflow inflow of the inland embankment analyzed by the inflow analysis unit 31 in the embankment.

The infiltration facility infiltration analysis unit 35 is a member for analyzing the infiltration into the ground in the infiltration facility existing in the area where the inland inundation inflow analysis unit 31 has analyzed.

The wastewater analysis unit 36 includes a natural wastewater analysis unit 36a and a forced wastewater analysis unit 36b.

The natural wastewater analysis unit 36a is a member for analyzing natural wastewater at a gutter gate or a floodgate as a drainage facility.

The forced drainage analysis unit 36b is a member for analyzing forced drainage at a drainage pump station as a drainage facility.

Using such an inland water inundation analysis device 100, it is possible to analyze inland waters in a specific area. The inland water inundation analysis method consists of the process of acquiring information on the effective rainfall amount, the process of analyzing the inland inundation flow in the embankment based on the acquired effective rainfall data, and the flow to the area where the analyzed inland inundation flow flows. A step of analyzing the effluent to the drainage facility based on the analyzed inflow area flow analysis result, and a step of displaying the analyzed effluent analysis result on the display unit 40 are included. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

In addition, the inland flood analysis program has a function to acquire information on effective rainfall, a function to analyze the inundation flow in the embankment based on the effective rainfall data acquired by the effective rainfall information acquisition function, and an inland inland inundation analysis function. A function to analyze the inflow to the area where the inflow of the inland inflow analyzed in the above, a function to analyze the outflow to the drainage facility based on the inflow area inflow analysis result analyzed by the inflow area inflow analysis function, and a drainage analysis. It is possible to realize a function of displaying the wastewater analysis result analyzed by the function on the display unit 40 on the computer. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Here, an example of the user interface screen of the inland water inundation analysis program is shown in FIG. The user interface screen 200 of the inland waters inundation analysis program shown in this figure shows the input conditions in the inland waters inundation analysis device 100, the water depth, the flow velocity, the arrival time, the inundation time, the walking difficulty determined from the water depth / flow velocity, and the collapse of the house. It has a function to display the results of time-series time changes such as danger zones and the maximum and minimum values within the target time.
(Flood model)

The details of the inland flood analysis will be described below. The current guideline, the inland waters guideline, shows a flooding model. The procedure for flood analysis of inland water disclosed here is shown in FIG. Looking at FIG. 3, the amount of runoff calculated in the runoff calculation (calculation of the amount of rainfall runoff to the embankment) all flows into the sewer pipe, and the amount of water overflowing from the sewer pipe is defined as the amount of inundation in the embankment. It can be seen that the flood analysis is being carried out.

However, this inland waters guideline states that the total amount of outflow flows into the sewer pipe, and the overflow from the sewer pipe is the inundation of the inland area, so the problem is that it cannot be applied in areas where the sewer pipe is not maintained. was there. In urban areas and rural areas in the suburbs of Japan, there are many areas where sewer pipes are not maintained, and in such areas, the current guidelines cannot be applied and inland water inundation cannot be analyzed.

In addition, "Technical Guidelines for Watershed Storage Facilities (Draft)", Association for Rainwater Storage and Infiltration Technology, P39, H19.3. (Non-Patent Document 2; hereinafter referred to as "storage guideline"), and "Rainwater infiltration facility technical guideline (draft) investigation / planning", Association for Rainwater Storage and Infiltration Technology, P46, H18.9. (Non-Patent Document 3: hereinafter referred to as "penetration guideline") treats the disaster mitigation effect of storage facilities and infiltration facilities as loss of rainfall, and evaluates the maintenance effect. More specifically, the amount of rainfall equivalent to the amount of rainfall for the maintenance effect is subtracted from the effective rainfall in FIG. 3, and the inundation analysis is performed using this as an external force.

However, in this inundation analysis, there is a problem that the disaster mitigation effect of the storage facility / infiltration facility cannot be evaluated in consideration of the maintenance position of the storage facility / infiltration facility because it is a method of evaluating the disaster mitigation effect of the storage facility / infiltration facility in the entire target area. rice field.

Furthermore, the inland waters guideline states that the total amount of outflow flows into the sewer pipe, and the overflow from the sewer pipe is the flooding of the inland area.

However, in the actual phenomenon, as shown in FIG. 4, the amount of rainfall falls on the inland of the embankment and flows into the sewer pipe through the inland of the embankment. For this reason, the current guideline in FIG. 3 has a problem that the inland water inundation that occurs during the inflow from the precipitation point to the sewer pipe cannot be taken into consideration.
[Embodiment 1]

On the other hand, the inland waters inundation analysis method according to the first embodiment of the present invention adopts the inland waters inundation model shown in FIG.

This inland flood model is a model in which rainfall is added to the inundation depth of the ground surface. Therefore, the amount of rainfall flows into the open channel through the ground surface. Then, it flows down the open channel and is drained to the river through the drainage facility. Looking at FIG. 5, it can be seen that a route for rainfall to be drained to the river is secured without going through the sewer pipe. Therefore, this embodiment can be applied to an area where rainwater is drained in an open channel where a sewer pipe is not maintained. This solves the problem that the conventional model does not have a sewer pipe and cannot be applied to areas where rainwater is drained through open channels.

In this inland water inundation model, the positions of the storage facility and infiltration facility are input to the mesh position of the plane two-dimensional indefinite flow calculation that calculates the inland inundation flow. Since the amount of water for the effect of the storage facility / infiltration facility is deducted from the flooding of the embankment at the location where the facility is installed, the disaster mitigation effect can be evaluated in consideration of the location of the storage facility / infiltration facility. This makes it possible to study the effective installation positions of storage facilities and infiltration facilities.

According to the inland waters guideline, the total amount of outflow flows into the sewer pipe, and the overflow from the sewer pipe is the flooding of the inland area. However, in the actual phenomenon, the amount of rainfall falls on the inland of the embankment and flows into the sewer pipe through the inland of the embankment. On the other hand, the inland waters inundation model according to the first embodiment is in line with the inundation mechanism of the actual phenomenon. Therefore, when analyzed by the inundation model with the inland water guideline, the flow velocity vector points in the direction of overflow from the sewer pipe. On the other hand, the inland water inundation model according to the present embodiment is an inundation analysis model in which the flow velocity vector faces the direction of inflow into the sewer pipe and faithfully reflects the actual phenomenon.

The inland waters inundation model of FIG. 5 is constructed by combining existing guidelines. It is considered that the analysis accuracy is also ensured by complying with the concept described in the existing guidelines. 1) to 6) of FIG. 5 will be described in detail below.

In the inland waters inundation model shown in Fig. 5, the effective rainfall to the inland inundation flow (rainfall) is described in "Guide for real-time inundation prediction simulation (draft)", Ministry of Land, Infrastructure, Transport and Tourism, River Bureau, P. 2-30, H17.6. (Non-Patent Document 4: Hereinafter referred to as "real-time inundation prediction guideline"), by adding the water depth equal to the amount of rainfall to the mesh of the plane two-dimensional indefinite flow calculation for calculating the inundation flow in the embankment, it is raining. The quantity is modeled. The details will be described below.
a) How to give rain

The following methods can be considered as the method of giving rainfall.
(1) A method of calculating the average rainfall in the basin and giving an equal amount of rainfall to a certain range of calculated meshes (2) A method of giving the amount of rainfall in mesh units to each calculated mesh

In the inland waters inundation model of FIG. 5, since it is assumed that rainfall data is given in mesh units from a separate calculation, the method (2) is adopted.
b) Calculation of runoff

Since the topography in the floodplain is mainly handled in mesh units, the handling of floodplain floodplains due to rainfall is performed by adding the _{effective rainfall R t at the corresponding time to the water depth h obtained by the continuity equation.}

h _t = h + rΔt

Here, r = R _t × 1000/3600 × f

f: runoff rate, R _t : rainfall intensity (mm / hr) of the corresponding mesh, h: the inundation water depth at the corresponding time t.

Next, in FIG. 5, the inflow / overflow (inflow / overflow of the open channel) from the inundation flow in the embankment to the open channel will be examined. "Land improvement project plan design standard and operation / explanation plan" drainage "" Agricultural Engineering Society, P243, H18.3. (Non-Patent Document 5: hereinafter referred to as "land improvement drainage guideline") describes that the flow rate between a paddy field and a river channel is calculated using the weir calculation formulas (1) and (2) described below. In the inland waters inundation model of FIG. 5, in accordance with the land improvement drainage guideline, the paddy field tank described in this land improvement drainage guideline is read as the embankment land and the river channel tank is read as the open channel, respectively, and the water tank is opened from the embankment inundation flow. Calculate the inflow to the waterway.

In the land improvement drainage guideline, the distance between the paddy field and the river channel is modeled as shown in FIG. 6, and the following weir calculation formulas (1) and (2) are applied to the flow rate q.

(Number 1)

(Number 2)

In the above equation, B: Weir width (open channel extension in the inland water inundation model in Fig. 5), H _j : The water level of the connected channel is a flow coefficient, and if the overflow coefficient is μ and the gravitational acceleration is g, the following equation It is represented by the number 3 and the number 4.

(Number 3)

(Number 4)

If the weir height is z, the higher water level of _{H i} and H _{j is H H} , and the lower water level of _{H i and H J is HL} , h ₁ and h ₂ are the following equations 5, respectively. , The number 6 is as follows.

(Number 5)

h ₁ = H _H −z

(Number 6)

h ₂ = _{HL −} z

Next, the inflow / overflow (inflow / overflow of the sewer pipe) from the inundation flow in the embankment in FIG. 5 to the sewer pipe will be examined. "Flood Simulation Manual (Draft)" Civil Engineering Research Material No. 3400: Public Works Research Institute, P16, H8.2. (Non-Patent Document 6: hereinafter referred to as "inundation simulation guideline") calculates the inflow amount from the inundation flow in the embankment to the sewer pipe as follows. The inland waters inundation model of FIG. 5 determines the inflow and overflow amount from the inland inundation flow to the sewer pipe based on the inundation simulation guideline.

In the inundation simulation guideline, the method of calculating the water level in the sewer pipe and _{the calculation method of the inflow amount S jk} ^{n + 1} of the inundation water in the embankment into the sewer pipe are as follows. Is.

For ^{_{V j n + 1 ≦ V Mj}} , we obtain the H _j ^{n + 1} than V _j ^{n + 1} using H _j ~V _j relationship. Further, the absorption amount S _jk ^{n + 1} can be obtained from the formula of Mostkov (formula of the bottom intake work) as the following equation 7.

(Number 7)

When V _j ^{n + 1} > V _Mj , let (V _j ^{n + 1} −V _Mj ) be the amount of water discharged to the mesh S _jj ^{n + 1,} and obtain it by the equation 8.

(Number 8)

Here, the flow coefficient μ = 0.8, α is the pore area of the rainwater, H _mk is the mesh inundation level, and Z _k is the ground height.

In the inland waters inundation model of FIG. 5, the installation position of the storage facility is input to the mesh of the plane two-dimensional indefinite flow calculation for calculating the inundation flow in the embankment, and the amount of water stored in the storage facility is subtracted from the inundation amount of the installation position mesh. The amount of water is used as the amount of inflow to the storage facility. And when the storage facility is full, the inflow is stopped. Since this inland water inundation model considers the installation position, it is possible to examine the effective installation position of the storage facility.

"Technical Guidelines for Watershed Storage Facilities (Draft)" Association for Rainwater Storage and Infiltration Technology, PP48-49, H19.3. (Non-Patent Document 7: hereinafter referred to as "storage guideline") describes a method for calculating the amount of runoff from the storage facility to the inundation flow in the embankment. In the inland waters inundation model of FIG. 5, the amount of outflow from the storage facility to the inland inundation flow is calculated by the following method in accordance with the storage guideline. In the case shown in FIG. 7, the discharge Q from the storage facility is given as a function of the water depth H by the number 9 which is the flow formula, depending on the shape of the discharge hole.

(Number 9)

Here, C = 0.85 to 0.95 when the bell mouth is held by the flow coefficient, and C = 0.6 to 0.8 when the bell mouth is not attached. In the inland waters inundation model of FIG. 5, the median value of the latter is taken and C = 0.7 is adopted.

g: Gravitational acceleration (9.8 [m / s ² ]); B: Discharge hole width; D: Discharge hole height

In the inland water inundation model of FIG. 5, the installation position of the infiltration facility is input to the mesh of the plane two-dimensional indefinite flow calculation for calculating the inundation flow in the embankment, and the infiltration water amount of the storage facility is subtracted from the inundation amount of the installation position mesh. In this inland water inundation model, the effective installation position of the infiltration facility can be examined because the installation position is taken into consideration.

In this embodiment, "Stormwater Infiltration Facility Technical Guideline (Draft) Survey / Planning", Association for Rainwater Storage and Infiltration Technology, PP51-53, H18.9. (Non-Patent Document 8: hereinafter referred to as "penetration guideline"), the amount of permeated water in the permeation facility is determined. The procedure for calculating the amount of seepage water in the infiltration facility is described below.

The saturated permeability coefficient is estimated from the particle size test results of the disturbed sample collected from the infiltration surface stratum, and the saturated permeability coefficient obtained in the infiltration test is verified. In the case of undisturbed and aggregated soil such as Kanto Loam, the saturated permeability coefficient cannot be estimated only from the particle size test results.

Here, the approximate values for estimating the saturated permeability coefficient from the particle size obtained by the soil particle size test and the type of soil are shown in Tables 1 and 2 below. Table 1 shows the approximate value of the saturated permeability coefficient according to the particle size, and Table 2 shows the approximate value of the saturated permeability coefficient.

The unit design infiltration amount of the infiltration facility is _{obtained by multiplying the standard infiltration amount Q f} described below by various influence factors C.

(Number 10)
Q = C × Q _f

In the above formula, Q: unit design permeation amount of _{permeation facility; Q f} : standard permeation amount of permeation facility; C: various influence coefficients are shown respectively.

In the inland waters inundation model of FIG. 5, since C = 1.0, when C is set, a value obtained by multiplying by C when setting _{k 0 is set from the following number 11.} (Generally C = 0.81)

The standard permeation amount Q _f for each facility is calculated by the number 11.

(Number 11)
Q _f = k ₀ × k _f

Here, Q _f : the standard infiltration amount of the installation facility [penetration facility 1 m, m ^{3 / hr per 1 m 2} or 1 m 2]; k _f : specific permeability of the installation facility [m ² ]; k ₀ : soil saturation. Permeability coefficient [m / hr].

Note that k _f is a constant automatically determined by the shape of the installation facility and the design head, and is calculated as shown in Table 3, Table 4, Table 5, Table 6, and Table 7. In these tables, Table 3 shows the specific permeation amount of the water-permeable pavement (k _f value [m ² ]), Table 4 shows the specific permeation amount of the water-permeable side groove (k _f value [m ² ]), and Table 5 shows the permeation trench. Specific permeation amount (k _f value [m ² ]), Table 6 shows the specific permeation amount of the permeation box (cylindrical) (k _f value [m ² ]), and Table 7 shows the specific permeation amount of the storage facility (large storage tank). (K _f value [m ² ]) are shown respectively.

（河川への排水）

(Drainage to the river)

There are two types of drainage to rivers in FIG. 5, natural drainage and forced drainage. Natural drainage refers to the drainage situation in which the water level inside the bank is higher than the water level outside the bank, and when the gutter gate is opened, the water is naturally drained to the outside of the bank due to the difference in water level. On the other hand, forced drainage is a situation in which the gutter gate is closed so that the water level outside the embankment is higher than the water level inside the embankment and the amount of water outside the embankment does not flow into the embankment. The drainage situation where forced drainage is carried out.
a) Natural drainage

"Land improvement business plan design standard and operation / explanation plan" drainage "" Agricultural Engineering Society, P239, H18.3. (Non-Patent Document 9: hereinafter referred to as "land improvement drainage guideline") describes that the amount of natural drainage is calculated using the relational expression between the water level inside the bank and the water level outside the bank described below. The inland waters inundation model of FIG. 5 conforms to the natural drainage amount described in the land improvement drainage guideline.

The drainage amount Q is governed by the drainage capacity of the drainage port affected by the inner water level h and the outer water level H. In the case of the natural drainage method, the gutter / water gate (drainage port) has an underdrain method and an open channel method as shown in FIG. Here the inner water level h, outside water level H, the inner water level h _t of t time, when the outer level and H _t, wastewater Q is represented by the number _{12 (h t> H t)} .

(Number 12)

On the other hand, in the calculation of the embankment land when calculating regardless of the magnitude of the values of _{h t} and H _{t, it is decomposed as shown in Equation 13.}

(Number 13)

Here, A _t, R _t: cross-sectional flow area of the drain outlet (m ²⁾ and hydraulic radius (m); n: coefficient of roughness Manning; X: an extension of the drainage port (m).

In Equation 13, A _t, R _t, if the underdrain system, becomes constant regardless of time. On the other hand, in the case of the open channel method, it changes according to the change of the inner water level and the outer water level.
(Forced drainage)

"Guide for real-time inundation prediction simulation (draft)" Ministry of Land, Infrastructure, Transport and Tourism River Bureau, P. 2-42, H17.6. (Non-Patent Document 10: hereinafter referred to as "real-time inundation prediction guideline"), it is said that the forced drainage amount is calculated using the numbers 14, 15, and 16 described below. The inland flood model of FIG. 5 conforms to the forced displacement described in this real-time inundation prediction guideline.

The concept of forced drainage (longitudinal view) is shown in FIG. 9, and the concept of forced drainage (hydrograph) is shown in FIG. Inundation reaches the area where drainage by the drainage machine of the drainage pump station is possible and the plane two-dimensional indefinite flow calculation mesh (single mesh, multiple meshes) input to the inland inundation model, and the water level inside the bank is higher than the water level at which the drainage pump station starts operation. If it exceeds the drainage pump station, the amount of drainage from the drainage pump station will be drained to the outside of the inundation area, and if the inundation is resolved and the water level inside the bank is lower than the water level at which the drainage pump station is stopped, the water level will be stopped.

This method is effective when the water level inside and outside the drainage pump station cannot be estimated. Regarding the amount of drainage and the amount of inland water flooding of the drainage machine, the water balance is the following number 14, number 15, and number 16.

(Number 14)

(Number 15)

(Number 16)

Here, V: the amount of water inside the embankment in the area where drainage by the drainage machine of the drainage pump station is possible; Q _in : the inflow flow rate to the drainage pump station, Q _out : the amount of drainage outside the embankment, Q _pa : the drainage capacity of the drainage machine, Δt: in calculation It is in time increments.

To accurately analyze the inland waters in a specific area by using the inland waters inundation analysis device, the inland waters inundation analysis method, the inland waters inundation analysis program, a computer-readable recording medium, and a stored device of the present invention. Is possible. For example, it can contribute to the real-time inundation monitor provided on the Web by government agencies during actual rainfall and the creation of hazard maps. It can also be used for disaster prevention such as forecasting future inundation areas, forecasting damage, and formulating evacuation routes.

100 ... Inland water inundation analysis device 200 ... User interface screen of inland water inundation analysis program 10 ... Input unit 11 ... Effective rainfall acquisition unit 12 ... Topographic information acquisition unit 20 ... Operation unit 30 ... Calculation unit 31 ... Bank inland inundation flow analysis Part 32 ... Inflow area inflow analysis unit 33 ... Inflow facility inflow and overflow analysis unit; 33a ... Open channel inflow and overflow analysis unit; 33b ... Sewage pipe inflow and overflow analysis unit 34 ... Storage facility inflow and outflow analysis unit 35 ... Infiltration facility inflow analysis unit 36 ... Wastewater analysis unit; 36a ... Natural wastewater analysis unit; 36b ... Forced wastewater analysis unit 37 ... River drainage analysis unit 40 ... Display unit 50 ... Data storage unit

According to the inland water inundation analysis device according to the first aspect of the present invention, it is an inland water inundation analysis device for analyzing inland water inundation in a specific area, and is an input for acquiring information on effective rainfall amount. Based on the effective rainfall data acquired by the input section, the inland inundation analysis section that analyzes the inland inundation flow, and the inflow area where the inundation inflow analysis section analyzes the inland flood flow. Based on the inflow area flow analysis unit that analyzes the inflow area flow analysis unit and the inflow area flow analysis unit analyzed by the inflow area flow analysis unit, the wastewater analysis unit that analyzes the drainage to the drainage facility and the wastewater analysis unit analyzed. It is equipped with a display unit that displays the results of wastewater analysis , and the inflow and outflow to the storage facility existing in the area where the inflow inflow analysis unit analyzed by the inflow area inflow analysis unit further flows. can Rukoto equipped with storage facilities inflow and outflow analysis unit for analyzing. With the above configuration, it is possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Further , according to the inland water inundation analysis device according to the second aspect of the present invention, the inland water inundation analysis device for analyzing the inland water inundation in a specific area is used to acquire information on the effective rainfall amount. Based on the input section of the above, the effective rainfall data acquired by the input section, the inland inundation analysis section that analyzes the inundation flow in the bank, and the inundation flow in the bank that is analyzed by the inundation analysis section in the bank flow in. The inflow area flow analysis unit that analyzes the flow to the area, the wastewater analysis unit that analyzes the drainage to the drainage facility based on the inflow area flow analysis result analyzed by the inflow area flow analysis unit, and the wastewater analysis unit. The inflow area inflow analysis unit is provided with a display unit for displaying the analyzed wastewater analysis result, and the ground in the infiltration facility existing in the area where the inflow area inflow analysis unit analyzed by the inflow area inflow analysis unit is inflowed. It can be equipped with a permeation facility permeation analysis unit that analyzes permeation into the inside. With the above configuration, it is possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.
Further, according to the inland waters inundation analysis device according to the third aspect of the present invention, in addition to the above configuration, the inflow area inflow analysis unit further analyzes the inflow area inflow analysis unit, and the inland inland inundation analysis unit analyzes the inflow area. It is possible to provide an inflow and overflow analysis unit for the inflow and overflow of the inflow facility existing in the inflow area.

Further, according to the inland waters inundation analysis device according to the fourth aspect of the present invention, in addition to any of the above configurations, the inflow facility inflow analysis unit further analyzes the inflow facility inflow analysis unit. As a flow facility existing in the area where the inundation flow in the embankment flows, an open channel inflow and overflow analysis unit that analyzes the inflow and overflow of the open channel can be provided.

Furthermore, according to the inland water inundation analysis device according to the fifth aspect of the present invention, in addition to any of the above configurations, the sewage facility inflow overflow analysis unit further analyzes with the sewage inland inundation analysis unit. As a flow facility existing in the area where the inflow of the inland sewage has flowed, a sewer pipe inflow and overflow analysis unit for analyzing the inflow and overflow of the sewer can be provided.

Furthermore, according to the inland water inundation analysis device according to the sixth aspect of the present invention, in addition to any of the above configurations, the wastewater analysis unit further analyzes the natural wastewater at the gutter gate or the water gate. It can be equipped with a wastewater analysis unit.

Furthermore, according to the inland water inundation analysis device according to the seventh aspect of the present invention, in addition to any of the above configurations, the wastewater analysis unit further analyzes the forced wastewater at the drainage pump station. Can be equipped with a part.

Furthermore, according to the inland water inundation analysis device according to the eighth aspect of the present invention, in addition to any of the above configurations, further, based on the wastewater analysis result analyzed by the wastewater analysis unit, drainage to the river It can be equipped with a river drainage analysis unit that analyzes the state of.

Furthermore, according to the inland water inundation analysis method according to the ninth aspect of the present invention, it is an inland water inundation analysis method for analyzing inland water inundation in a specific area, and information on effective rainfall is acquired. The process, the process of analyzing the inundation inflow in the embankment based on the acquired effective rainfall data, the process of analyzing the inflow to the area where the inflow of the inland inflow analyzed is analyzed, and the analysis of the inflow area inflow analyzed. based on the results, and the step of analyzing the waste water to the drainage facilities, only contains a step to be displayed on the display unit of the drainage analysis result of the analysis, the flow down to the area where the analysis was protected inland flood flow flows analysis The process to be performed is the process of analyzing the inflow and outflow to the storage facility existing in the area where the analyzed inland inundation flow flows, or the ground in the infiltration facility existing in the area where the analyzed inland inundation flow flows. the step of analyzing the penetration into the medium, either at least can free Mukoto. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Furthermore, according to the inland waters inundation analysis method according to the tenth aspect of the present invention, in addition to the above, the step of analyzing the flow to the area where the analyzed inland inundation flow flows into the analyzed bank is described above. It can be a process of analyzing the inflow and overflow of the inflow facility existing in the area where the inland inundation flow flows.

Furthermore, according to the inland water inundation analysis method according to the eleventh embodiment of the present invention, in addition to any of the above, a step of analyzing inflow and overflow to the inflow facility is performed by the inland inundation inundation analysis unit. The inflow facility existing in the area where the analyzed inundation inflow flows includes at least one of the steps of analyzing the inflow and overflow for the open channel and the step of analyzing the inflow and overflow for the sewer pipe. Can be done.

Furthermore, according to the inland water inundation analysis method according to the twelfth aspect of the present invention, in addition to any of the above, a step of analyzing the drainage to the drainage facility based on the analysis result of the inflow area flow analysis is performed. It can include at least one of a step of analyzing natural wastewater at a gutter or a water gate, or a step of analyzing forced drainage at a drainage pump station.

Furthermore, according to the inland inundation analysis program according to the thirteenth aspect of the present invention, it is an inland inundation analysis program for analyzing inland inundation in a specific area, and obtains information on effective rainfall. The function to analyze the inundation flow in the embankment based on the function and the effective rainfall data acquired by the effective rainfall information acquisition function, and the inflow to the area where the inundation inflow analyzed by the inland embankment analysis function flows. The function to analyze the drainage to the drainage facility based on the inflow area flow analysis result analyzed by the inflow area flow analysis function, and the wastewater analysis result analyzed by the drainage analysis function are displayed on the display unit. The function to analyze the inflow to the area where the analyzed inland inundation flow flows is realized by the computer, and the inflow and outflow to the storage facility existing in the area where the analyzed inland inundation inflow flows. It can include at least one of the function of analyzing the infiltration into the ground and the function of analyzing the infiltration into the ground in the infiltration facility existing in the area where the inflow of the inland inundation flow is analyzed. This makes it possible to analyze the inundation flow in the embankment appropriately regardless of whether or not the sewer pipe is constructed.

Furthermore, the computer-readable recording medium or storage device according to the fourteenth aspect of the present invention stores the above program. Recording media include CD-ROM, CD-R, CD-RW, flexible disc, magnetic tape, MO, DVD-ROM, DVD-RAM, DVD-R, DVD + R, DVD-RW, DVD + RW, and Blu-ray (registered). Trademarks), magnetic disks such as HD DVDs (AODs), optical disks, magneto-optical disks, semiconductor memories and other media capable of storing programs are included. Further, the program includes a program stored in the above-mentioned recording medium and distributed, and a program distributed by download through a network line such as the Internet. Further, the stored device includes a general-purpose or dedicated device in which the above program is implemented in a state where it can be executed in the form of software, firmware, or the like. Furthermore, each process or function included in the program may be executed by program software that can be executed by a computer, or the process of each part may be performed by hardware such as a predetermined gate array (FPGA, ASIC), or program software and hardware. It may be realized in a form in which a partial hardware module that realizes a part of the element of the wear is mixed.

Claims (16)

An inland waters inundation analysis device for analyzing inland waters in a specific area.
An input section for acquiring information on effective rainfall, and
Based on the effective rainfall data acquired by the input unit, the levee inland inundation analysis unit that analyzes the levee inland inundation flow and the levee inland inundation analysis unit
The inflow area flow analysis unit that analyzes the flow to the area where the embankment inundation flow flows, which was analyzed by the embankment inundation flow analysis unit, and the inflow area flow analysis unit.
A wastewater analysis unit that analyzes drainage to drainage facilities based on the results of inflow area flow analysis analyzed by the inflow area flow analysis unit.
A display unit that displays the wastewater analysis result analyzed by the wastewater analysis unit,
Inland waters inundation analysis device equipped with. The inland water inundation analysis device according to claim 1.
The inflow area flow analysis unit further
An inland waters inundation analysis device including an inflow facility inflow and overflow analysis unit that analyzes inflow and overflow for a flow facility existing in an area where the inland inundation flow analyzed by the inland inundation analysis unit. The inland water inundation analysis device according to claim 2.
The inflow and overflow analysis unit of the flow facility further
An inland waters inundation analysis device including an open channel inflow and overflow analysis unit that analyzes inflow and overflow to an open channel as a flow facility existing in an area where the inflow of the inland inflow analyzed by the inland inflow analysis unit is inflow. The inland water inundation analysis device according to claim 2 or 3.
The inflow and overflow analysis unit of the flow facility further
An inland water inundation analysis device equipped with a sewer pipe inflow overflow analysis unit that analyzes inflow and overflow to a sewer pipe as a flow facility existing in the area where the inland inundation flow analyzed by the inland inundation analysis unit is inflowed. .. The inland water inundation analysis apparatus according to any one of claims 1 to 4.
The inflow area flow analysis unit further
An inland waters inundation analysis device including a storage facility inflow / outflow analysis unit that analyzes inflows and outflows to a storage facility existing in an area where the inland inundation flow analyzed by the inland inundation analysis unit. The inland water inundation analysis apparatus according to any one of claims 1 to 5.
The inflow area flow analysis unit further
An inland waters inundation analysis device including an infiltration facility infiltration analysis unit that analyzes infiltration into the ground in an infiltration facility existing in an area where the inland inundation flow analyzed by the inland inundation analysis unit. The inland water inundation analysis apparatus according to any one of claims 1 to 6.
The wastewater analysis unit further
An inland water inundation analysis device equipped with a natural wastewater analysis unit that analyzes natural wastewater at a gutter or water gate. The inland water inundation analysis apparatus according to any one of claims 1 to 7.
The wastewater analysis unit further
An inland water inundation analysis device equipped with a forced drainage analysis unit that analyzes forced drainage at a drainage pump station. The inland water inundation analysis apparatus according to any one of claims 1 to 8, further comprising.
An inland water inundation analysis device including a river drainage analysis unit that analyzes the state of drainage to a river based on the wastewater analysis result analyzed by the wastewater analysis unit. It is an inland waters inundation analysis method for analyzing inland waters inundation in a specific area.
The process of acquiring information on effective rainfall and
Based on the obtained effective rainfall data, the process of analyzing the inundation flow in the embankment and
The process of analyzing the flow to the area where the inundation flow in the embankment analyzed above flows, and
Based on the analysis result of the inflow area flow analysis, the process of analyzing the drainage to the drainage facility and
The process of displaying the analyzed wastewater analysis result on the display unit,
Inland waters inundation analysis method including. The inland water inundation analysis method according to claim 10.
The process of analyzing the flow to the area where the inundation flow in the embankment analyzed above flows is
The inland waters inundation analysis method, which is a step of analyzing the inflow and overflow of the inflow facility existing in the area where the inland inundation inflow analyzed. The inland water inundation analysis method according to claim 11.
The process of analyzing inflow and overflow to the flow facility is
As a flow-down facility existing in the area where the inundation inflow analyzed in the embankment, which was analyzed by the inundation inflow analysis department, exists.
An inland waters inundation analysis method comprising at least one of a step of analyzing inflow and overflow for an open channel or a step of analyzing inflow and overflow for a sewer pipe. The inland water inundation analysis method according to any one of claims 10 to 12.
The process of analyzing the flow to the area where the inundation flow in the embankment analyzed above flows is
Infiltration into the ground in the process of analyzing inflow and outflow to the storage facility existing in the area where the inflow of the inland flood flow analyzed, or in the infiltration facility existing in the area where the inundation inflow of the inland analyzed inflow flows. An inland waters inundation analysis method that includes at least one of the steps of analyzing. The inland water inundation analysis method according to any one of claims 10 to 13.
The process of analyzing the drainage to the drainage facility based on the analysis result of the inflow area flow analysis described above
An inland water inundation analysis method including at least one of a step of analyzing natural wastewater at a gutter or a water gate, or a step of analyzing forced drainage at a drainage pump station. An inland waters inundation analysis program for analyzing inland waters in a specific area.
A function to acquire information on effective rainfall and
A function to analyze the inundation flow in the embankment based on the effective rainfall data acquired by the effective rainfall information acquisition function, and
A function to analyze the flow to the area where the inflow of the inland embankment analyzed by the above-mentioned inundation analysis function of the embankment and the function to analyze the inflow to the area.
A function to analyze drainage to drainage facilities based on the results of inflow area flow analysis analyzed by the inflow area flow analysis function, and
A function to display the wastewater analysis result analyzed by the wastewater analysis function on the display unit,
Inland waters inundation analysis program to realize the above on a computer. A computer-readable recording medium or device that stores the program according to claim 15.

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