JP5654069B2 - Information processing apparatus, information processing apparatus control method, and program - Google Patents

Description

  The present invention relates to an information processing apparatus, a control method for an information processing apparatus, and a program for formulating a method for constructing a placement soil constructed on the downstream side of a dam using sediment deposited on the upstream side of the dam.

  Hydroelectric power plant dams and dams (hereinafter also referred to simply as dams) block the sediment flowing from the upstream of the river. For this reason, the amount of sediment supplied to the downstream is reduced, and there is a risk that the coastline will decrease or become armored (the riverbed will be composed of only large stones and gravel).

  For this reason, the earth and sand blocked by the dam are transported to the downstream side of the dam and placed along the river to construct the soil, and the earth and sand are caused to flow downstream by the flow of water from the dam (see FIG. 12). ).

  By flowing the earth and sand down the ground by placing soil, the cost required for transporting the earth and sand accumulated in the dam to the earth disposal site can be reduced, and the earth and sand can be supplied downstream in a natural state (see, for example, Patent Document 1).

JP 2006-200168 A

  However, when constructing the soil, it is not just a matter of pouring the sediment deposited on the upstream side of the dam and placing it on the downstream side. For example, the discharge of a dam operated in accordance with the policy of a hydroelectric power plant In consideration of the implementation status of the soil and the impact on the natural environment by flowing earth and sand into the river, a method for constructing the soil that has been set up so that the earth and sand will flow properly It is necessary to formulate.

  For example, if the amount of earth and sand is too large, the period required for the earth and sand to flow down becomes long, and a large amount of earth and sand that flows downstream may adversely affect the environment such as the ecosystem. On the other hand, if the amount of earth and sand is too small, the period of time required for the earth and sand to flow down is shortened, but there is a possibility that the coastline will decrease and armoring will occur, which may also have an adverse effect on the environment.

  Also, even if the amount of earth and sand is the same, placing it so that the earth and sand are piled up higher will increase the time required for all the earth and sand to flow down, but conversely if placing it so that the height of the earth and sand is lower The time it takes for sediment to flow down is shortened, and the sediment flows down in a shorter time.

In order to appropriately formulate such a method for constructing soil, advanced judgment based on many years of experience and achievements is required.
For this reason, there is a need for technology to support the work of formulating a method for constructing soil.

  The present invention has been made in view of the above-mentioned problems, and an object thereof is to support the formulation work of a method for constructing the soil.

  An information processing apparatus according to one aspect is an information processing apparatus for formulating a method for constructing a placement soil constructed on the downstream side of the dam using sediment deposited on the upstream side of the dam, A first value indicating the amount of earth and sand used for constructing the placement soil and a second value indicating the height of the placement soil are varied, and the first value and the second value are changed. The third value indicating the time required for the flow of the placement soil to be calculated for each combination of values is associated with the first value and the second value for each combination. A table to be stored; an input receiving unit that receives an input of a value for at least one of the amount of the earth and sand, the height of the storage soil, and the time required to complete the flow of the storage soil; and For items that are different from the item for which the value was entered , And an output section for outputting a value corresponding to the inputted value is read from the table.

  In addition, the problems disclosed by the present application and the solutions thereof will be clarified by the description in the column of the embodiment for carrying out the invention and the description of the drawings.

  It can support the work of formulating the construction method of the soil.

It is a block diagram which shows the hardware constitutions of a placement support apparatus. The structure of the data stored in the memory | storage part of a placement support apparatus is shown. It is a flowchart which shows the flow of the process by a placement support apparatus. It is a figure which shows a simulation result table. It is a figure which shows a simulation result table. It is a figure which shows an example of a water discharge pattern. It is a figure which shows a mode that a placement soil flows down. It is a figure which shows a mode that a placement soil flows down. It is a figure which shows a mode that a placement soil flows down. It is a figure for demonstrating the height of placement soil. It is a figure for demonstrating the height of placement soil. It is a figure for demonstrating placement soil.

  At least the following matters will become apparent from the description of this specification and the accompanying drawings.

== Configuration of device and data ==
FIG. 1 is a diagram showing a hardware configuration of a placement support apparatus 1 according to the embodiment of the present invention. The placement support apparatus 1 includes a communication unit 11, a display unit (output unit) 12, an input unit (input reception unit) 13, a processing unit (simulation execution unit, table creation unit) 14, and a storage unit 15. Device).

  The communication unit 11 is a part that communicates with other computers via a network (not shown), and is realized by, for example, a NIC (Network Interface Card).

  The display unit 12 is a part that outputs data in response to an instruction from the processing unit 14, and is realized by, for example, a liquid crystal display (LCD).

  The input unit 13 is a part where an operator inputs data (for example, data on terrain conditions and water discharge patterns), and is realized by, for example, a keyboard or a mouse.

  The processing unit 14 performs overall control of the placement support device 1 and is realized by a CPU (Central Processing Unit) executing various programs stored in the storage unit 15.

  The storage unit 15 stores various programs, data, tables, and the like executed by the processing unit 14 in order to make the placement support apparatus 1 according to the present embodiment function. The storage unit 15 is realized by, for example, a nonvolatile storage device such as a flash memory or a hard disk device, and a volatile storage device such as a RAM. The storage unit 15 indicates the temporal change in the amount of sediment and the height of the soil, the data of the terrain condition of the dam or river of the hydroelectric power plant, and the flow rate related to the water discharge that should flow from the dam to the downstream. Water discharge pattern data, mass conservation law continuity equation, momentum conservation law equation of motion P. Data such as M-type and Hasegawa's formula are stored.

  The placement support apparatus 1 may be a stand-alone information processing apparatus (PC (Personal Computer) or the like), or another information processing apparatus such as a terminal or a server (for example, a simulation execution apparatus described later) and a network ( It may be an information processing apparatus capable of communicating via (not shown). In addition, the placement support apparatus 1 does not need to be provided with the communication part 11, when it is a stand-alone apparatus.

  In the case where communication with other information processing devices such as the above-described terminals and servers is possible, the placement support device 1 receives data such as terrain conditions, water discharge patterns, and simulation results from the terminals and servers and stores them in the storage unit 15. You may make it memorize | store. Furthermore, the storage unit 15 may be provided at a remote location. In this case, the placement support apparatus 1 exchanges programs and data with the storage unit 15 via the communication unit 11.

  FIG. 2 shows a configuration of data stored in the storage unit 15. The storage unit 15 stores calculation formula data 15A, terrain condition data 15B, water discharge pattern data 15C, and a simulation result table 15D.

  The calculation formula data 15A is data of a calculation formula used when executing the simulation. The mass conservation law continuity formula and the momentum conservation law motion equation as the basic formula of the flow and the M.M. P. There are M formula, Hasegawa formula, etc.

  The terrain condition data 15B is data related to the terrain of dams and rivers. The amount of soil (the amount of earth and sand) and height, the height of the riverbed, the river width, the height of the dam, the average particle size of the riverbed material, etc. is there.

  The flood pattern data 15C is data indicating a temporal change in the flow rate related to the flood that should flow down the soil.

  The simulation result table 15D varies the first value indicating the amount of earth and sand used for constructing the placement soil and the second value indicating the height of the placement soil to be constructed, For each combination, the third value indicating the time required to complete the flow of the placement soil calculated by performing the simulation for each combination of the first value and the second value is the first value. And stored in association with the second value.

  An example of the simulation result table 15D is shown in FIG. The first value used when the simulation is executed is described in the column of “amount of earth and sand” of the simulation result table 15D. In the column of “height of earth and sand”, the second value used when the simulation is executed is described. In the “flow period” column, a third value calculated by executing the simulation is described.

  Note that the time required to complete the flow of the soil can be defined in various ways, but as an example, the temporary deadline set when constructing the soil in the river is removed and the soil is removed from the river. It can be a period from the time when it begins to be exposed to water to the time when all the earth and sand of the installed soil has been repositioned by the water flow.

  A graph created by plotting the simulation result table 15D on the two-dimensional coordinates is shown in FIG.

As shown in FIG. 5, even if the amount of earth and sand in the placement soil is the same (for example, 1000 m ³ ), it is necessary to complete the flow of the earth and sand in the placement soil if the earth and sand are placed so that the height of the placement soil becomes higher. The period will be longer.

  For example, FIG.10 and FIG.11 is sectional drawing at the time of cut | disconnecting a river in a crossing direction, but the height H2 of the placement soil shown in FIG. 11 is more than the height H1 of the placement soil shown in FIG. Because it is high (H2> H1), even if the amount of these sediments is the same, if the construction soil is constructed so that the height of the placement soil becomes higher as shown in FIG. The time it takes to finish is longer.

  Returning to FIG. 5, even if the height of the placement soil is the same, as the amount of sediment in the placement soil is larger, the period required for the flow of the sediment in the placement soil is longer.

  In addition, when the upper limit of the period until the sediment runoff is determined in advance, in order to treat a larger amount of sediment as placed soil, the height should be set as low as possible. It is necessary to construct soil.

≪About simulation≫
The soil placement support apparatus 1 varies the first value indicating the amount of earth and sand used for constructing the soil and the second value indicating the height of the soil, respectively. For each combination of the value of 1 and the second value, a simulation of how the soil is being flowed downstream is performed, and a third value indicating a period required until the flow of the soil is completed is calculated.

  First, the soil placement support apparatus 1 acquires data on topographic conditions including the amount of soil and the height of soil placement via the communication unit 11 and the input unit 13. The terrain condition data includes river width, river longitudinal height, average particle size of earth and sand (bed material), dam height, roughness coefficient, and the like. The longitudinal height of the river is the distribution of the height of the river bed along the direction of the flow, and includes the river bed raised by the soil. The acquired terrain condition data is stored in the terrain condition data 15B of the storage unit 15.

Next, the soil placement support apparatus 1 acquires data on the pattern of water discharge from the dam via the communication unit 11 and the input unit 13. Flooding is water that flows downstream from a dam of a hydroelectric power plant, and is caused by natural flooding or forced dam opening. FIG. 6 is a graph showing an example of a water discharge pattern. The elapsed time [hour] is taken on the horizontal axis, and the flow rate [m ³ / s] is taken on the vertical axis, showing the temporal change of the flow rate. The acquired water discharge pattern data is stored in the water discharge pattern data 15 </ b> C of the storage unit 15.

  Then, the placement support device 1 initializes the time t. At time t, for example, a start time (0hour) of water discharge is set as an initial value.

The soil placement support apparatus 1 inputs various terrain data and the like into the flow basic equation (Equation 1) and the motion equation (Equation 2) (Equation 3) stored in the calculation formula data 15A, and performs numerical calculation.

Where (x, y): spatial coordinates, t: time, h: water depth, Zs: water level, (u, v): (x, y) component of the average flow velocity vector, M: M = hu Flow flux, N: Flow flux defined by N = hv, -u _i 'u _j ': Reynolds stress tensor averaged in water depth, τ _bx , τ _by : Shear stress acting in the (x, y) direction at the bottom It is a vector component.

The placement support apparatus 1 _calculates τ _bx and τ _{by according} to (Expression 4) and (Expression 5) shown below. Note that n is a Manning roughness coefficient.

Further, the Reynolds stress tensor -u _i 'u _j ' averaged in depth is given by (Equation 6) and (Equation 7) as follows.

Here, u _* : friction velocity, k: turbulence energy averaged in water depth, D _h : eddy viscosity coefficient, δ _ij : Kronecker delta, α: constant (= 0.3).

The turbulence energy k is evaluated by 2.07u _* ² obtained by integrating the following empirical formula (Formula 8) in the water depth direction.

  Next, the soil placement support device 1 analyzes the sediment. The placement support device 1 according to the present embodiment is an M.M. P. M.M. Using the Hasegawa equation in the crossing direction, the sediment is analyzed by the equilibrium sediment rate equation.

Specifically, the soil placement support device 1 _converts the sediment flow amount (q _bs , q _bn ) obtained by solving (Equation 9) and (Equation 10) into the x and y direction components (q _bx , q _by ). Sediment is analyzed by converting and calculating the riverbed variation from the continuous equation of the riverbed of (Equation 11).

Where (q _bs , q _bn ): flow direction, transverse sand flux, τ _* , τ _{* c} : dimensionless tractive force, dimensionless critical tractive force, (u _sb , un _nb ): near the riverbed (S, n) direction component of flow velocity, μ _s : Static friction coefficient of riverbed material, μ _k : Dynamic friction coefficient of riverbed material, z _b : River bed height. λ: The porosity of the riverbed material.

  By analyzing the above (Equation 1) to (Equation 11), the placement support device 1 simulates the situation where the placement soil built in the river flows downstream as time passes.

  The result of the simulation implemented by the placement support apparatus 1 is shown in FIGS. 7 to 9, t indicates the elapsed time since the soil has begun to be exposed to the river stream.

  The placement support device 1 varies the first value indicating the amount of earth and sand used for constructing the placement soil as described above and the second value indicating the height of the placement soil, respectively. While doing the simulation.

  Then, the placement support device 1 uses the above simulation to calculate the third value indicating the time required for the flow of the placement soil to be calculated for each combination of the first value and the second value. Every time, it is stored in the simulation result table 15D in association with the first value and the second value.

  By such an aspect, the soil placement support apparatus 1 has the amount of earth and sand used for constructing the soil, the height of the soil to be constructed, and the time required for the flow of the soil to be completed. When an implementation condition for placing soil specifying at least one of the above is input to the input unit 13, it is possible to output a placement method for placing that matches the implementation condition. Further, the placement support apparatus 1 can quickly output the placement method of the placement that matches the implementation conditions by simply referring to the simulation result table 15D.

  The simulation may be performed by a simulation execution device (not shown) connected to the placement support device 1 in a communicable manner. In this case, the placement support device 1 receives a combination of a first value indicating the amount of earth and sand used for constructing the placement and a second value indicating the height of the placement from the simulation execution device. Each time, the first value, the second value, and the third value are received, and the first value, the second value, and the third value are received for each combination. Correspondingly, it is stored in the simulation result table 15D.

  According to such an aspect, it is not necessary for the placement support apparatus 1 to execute a simulation, and thus the load on the placement support apparatus 1 can be reduced. Further, if the simulation execution device is realized by a computer having higher performance than the placement support device 1 (for example, a so-called supercomputer), the placement support device 1 can acquire the simulation result more quickly. Become.

== Flow of processing ==
Next, the flow of processing executed by the placement support apparatus 1 according to the present embodiment will be described with reference to the flowchart of FIG.

  First, the placement support device 1 accepts input of construction conditions for placement (S1000). Specifically, the installation condition of the soil is input to the input unit 13 by the operator.

  At this time, the operator inputs a value for at least one of the following items: the amount of earth and sand used to construct the placement soil, the height of the placement soil, and the period required for the placement soil to flow down. Input to the unit 13.

As an example, a case will be described in which a value indicating the amount of earth and sand used for constructing the laying soil and a value indicating a period required for the laying down of the laying soil are input to the input unit 13. For example, it is assumed that 500 m ³ is input as the amount of earth and sand and 100 days are input as the period.

  Then, the placement support device 1 refers to the simulation result table 15D, reads values corresponding to these input values from the simulation result table 15D, and outputs them to the display unit 12 (S1010).

As shown in FIG. 4, since the amount of earth and sand = 500 m ³ and the flow period = 100 days corresponds to the height of the placed soil = 1.0 m, the placed soil support apparatus 1 sets the height of the placed soil as 1. 0 m is output to the display unit 12.

In other words, the operator is to Zo設placed soil using soil of 500 meters ^3, in order to flow down all at 100 days, to know a may be Zo設placed soil to be 1.0m Height Can do.

  As described above, the placement support device 1 according to the present embodiment has a value indicating the amount of earth and sand used for constructing the placement soil, a value indicating a period required for the flow of the placement soil to be completed, Is input to the input unit 13 so that it is easy to know how to set the height of the soil in order to allow a predetermined amount of sediment to flow down the river within a predetermined period. It becomes possible. As a result, it is possible to reduce the burden of the work for formulating the laying soil construction method.

  As another example, a case will be described in which a value indicating the height of the placement soil and a value indicating a period required for the completion of the placement soil flow are input to the input unit 13. For example, it is assumed that 3 m is input as the height of the placement soil and 300 days is input as the period.

  Then, the placement support device 1 refers to the simulation result table 15D, reads values corresponding to these input values from the simulation result table 15D, and outputs them to the display unit 12 (S1010).

As shown in FIG. 4, the amount of earth and sand of the placement soil = 2000 m ³ corresponds to the height of the placement soil = 3 m and the flow period = 300 days. 2000 m ³ is output to the display unit 12.

In other words, the operator can know that 2000 m ³ of earth and sand can be processed in order to construct the soil at a height of 3 m and make it all flow down in 300 days.

  As described above, the placement support device 1 according to the present embodiment has a value indicating the height of the placement soil to be constructed and a value indicating the time required for the flow of the placement soil to be completed in the input unit 13. By making it input, it is possible to easily know how much earth and sand can be processed in order to allow the soil placed at a predetermined height to flow down within a predetermined period. Become. As a result, it is possible to reduce the burden of the work for formulating the laying soil construction method.

  As yet another example, a case will be described in which only a value indicating a period required for the pouring of pouring is input to the input unit 13. For example, it is assumed that 150 days is input as a period until the pouring of pouring is completed.

  Then, the placement support device 1 refers to the simulation result table 15D, reads the amount of sediment and the height of the placement corresponding to the input flow period = 150 days from the simulation result table 15D, and displays them on the display unit 12. Output (S1010).

  In this case, the combination of the amount of sediment and the height of the placement soil corresponding to the flow-down period = 150 days is not necessarily one. The placement support device 1 reads all combinations of the amount of sediment and the height of placement soil corresponding to the flow-down period = 150 days from the simulation result table 15D and outputs them to the display unit 12.

  In this way, the operator can know the combination of the amount of earth and sand and the height of the earth that can cause all the earth to flow down in 150 days.

  As described above, the placement support device 1 according to the present embodiment allows the placement section to be placed within a predetermined period by allowing the input unit 13 to input a value indicating the period required for the completion of the flow of placement. In order to make it flow down, it is possible to easily know how much soil and what height should be used to construct the soil. As a result, it is possible to reduce the burden of the work for formulating the laying soil construction method.

  In this case, the placement support device 1 plots and displays on the two-dimensional coordinates each combination of the amount of earth and sand that can flow down the placement soil within the input period and the height of the placement soil. Anyway.

  Accordingly, the placement support device 1 according to the present embodiment can visually display the placement condition that matches the construction conditions input to the input unit 13. It is possible to reduce the burden of construction method formulation work.

  In addition to the above example, there is a value for at least one item of the amount of earth and sand used for constructing the placement soil, the height of the placement soil, and the period required for the flow of the placement soil to be completed. When input to the input unit 13, the placement support device 1 refers to the simulation result table 15 </ b> D, and reads a value corresponding to the input value for an item different from the item input to the input unit 13. To the display unit 12.

  By such an aspect, the placement support apparatus 1 according to the present embodiment can quickly perform a placement construction method that matches the construction conditions input to the input unit 13 only by referring to the simulation result table 15D. It becomes possible to output. As a result, it is possible to reduce the burden of the work for formulating the laying soil construction method.

  In particular, when construction work is to be carried out, the scale of the work is large, and it is difficult to redo it even if the placement soil does not flow down as planned. Therefore, it is possible to devise a more accurate placement plan by examining the construction method of the placement soil in advance using the placement support device 1 according to the present embodiment.

  Although the best mode for carrying out the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention.

  For example, the value input to the input unit 13 by the operator may not be the same as the value recorded in the simulation result table 15D. In this case, the placement support apparatus 1 calculates a value corresponding to the input value by linearly interpolating the value recorded in the simulation result table 15D, and outputs the value to the display unit 12.

DESCRIPTION OF SYMBOLS 1 Placement support apparatus 14 Processing part 15 Memory | storage part 15A Calculation formula data 15B Topographic condition data 15C Water discharge pattern data 15D Simulation result table

Claims (7)

An information processing apparatus for formulating a construction method for placing soil constructed on the downstream side of the dam using sediment deposited on the upstream side of the dam,
A first value indicating the amount of earth and sand used for constructing the placement soil and a second value indicating the height of the placement soil are varied, respectively, and the first value and the first value are changed. The third value indicating the time required to complete the flow of the set soil calculated for each combination of two values is associated with the first value and the second value for each combination. And a table to remember
An input receiving unit that receives an input of a value for at least one item of the amount of earth and sand, the height of the storage soil, and the time required to complete the flow of the storage soil;
For an item different from the item in which the value is input, an output unit that reads and outputs a value corresponding to the input value from the table;
An information processing apparatus comprising: The information processing apparatus according to claim 1,
The input receiving unit receives an input of a value indicating the amount of the earth and sand and a value indicating a time required to complete the flow of the placing soil,
The information processing apparatus, wherein the output unit reads out and outputs a value indicating the height of the placement corresponding to each input value from the table. The information processing apparatus according to claim 1,
The input receiving unit receives an input of a value indicating a height of the laying soil and a value indicating a time required to complete the laying of the laying soil;
The information processing apparatus, wherein the output unit reads and outputs a value indicating the amount of earth and sand corresponding to each of the input values from the table. The information processing apparatus according to claim 1,
A simulation execution unit that varies the first value and the second value, and calculates the third value for each combination of the first value and the second value;
A table creation unit that records the third value calculated by the simulation execution unit in the table in association with the first value and the second value for each combination;
An information processing apparatus further comprising: The information processing apparatus according to claim 1,
Communicating with a simulation execution device that calculates the third value for each combination of the first value and the second value by varying the first value and the second value. A communication unit that receives the first value, the second value, and the third value for each combination from the simulation execution device;
A table creation unit that records the first value, the second value, and the third value received by the communication unit in the table in association with each combination;
An information processing apparatus further comprising: A control method for an information processing apparatus for formulating a method for constructing a soil to be constructed on the downstream side of the dam using sediment deposited on the upstream side of the dam,
The information processing apparatus varies a first value indicating the amount of earth and sand used for constructing the placement soil and a second value indicating the height of the placement soil, respectively, A third value indicating the time required for the flow of the placement soil to be calculated for each combination of the first value and the second value, and for each combination, the first value and the second value Stored in association with the value of 2,
The information processing apparatus accepts input of values for at least one item of the amount of earth and sand, the height of the placing soil, and the time required for the flow of the placing soil to be completed,
A method of controlling an information processing apparatus, wherein the information processing apparatus reads a value corresponding to the input value from the table and outputs an item different from the item to which the value is input. In the information processing device for formulating the construction method of the soil to be built on the downstream side of the dam using the sediment deposited on the upstream side of the dam,
A first value indicating the amount of earth and sand used for constructing the placement soil and a second value indicating the height of the placement soil are varied, respectively, and the first value and the first value are changed. The third value indicating the time required to complete the flow of the set soil calculated for each combination of two values is associated with the first value and the second value for each combination. And the procedure to remember
A procedure for accepting input of values for at least one of the amount of earth and sand, the height of the placement soil, and the time required for the flow of the placement soil to be completed;
For an item different from the item in which the value is input, a procedure for reading and outputting a value corresponding to the input value from the table;
A program for running