Future landform estimation method

Abstract

To accurately estimate a future landform.SOLUTION: A future landform estimation method includes the steps of: acquiring information on a soil conveyance amount in respective regions in a predetermined construction section; calculating required man-hours necessary for conveying soil in the respective regions, on the basis of information on usable heavy machines; acquiring soil conveyance plan information formulated on the basis of the required man-hours necessary for conveying the soil in the respective regions, and period information indicating a period in which construction can be started in the respective regions in the construction section; and calculating ground heights of the respective regions in the construction section at a predetermined date, on the basis of the soil conveyance plan information.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a method for estimating future topography. [Background technology]

[0002] Conventionally, as a method for creating a delivery plan for goods and the like, a method for creating a delivery plan by optimization calculation using linear programming is known (for example, see Patent Document 1, etc.). It is considered that such a method for creating a delivery plan by optimization calculation can also be used in creating a soil volume allocation plan at a construction site. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-136421 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, because the road surface conditions at construction sites vary, the heavy machinery owned also varies, and the heavy machinery that can be used varies depending on the road surface conditions, construction often does not proceed as planned even if an earthwork allocation plan is created using optimization calculations based on linear programming. There is also a demand to confirm how the topography will change by the time construction is completed when construction is carried out according to the earthwork allocation plan.

[0005] In one aspect, the present invention has an object to provide a future topography estimation method capable of estimating a future topography with high accuracy. [Means for solving the problem]

[0006] The future topography estimation method includes the steps of: acquiring information on the amount of soil to be transported between each area within a specified construction zone; calculating the required man-hours required to transport soil between each area based on information on available heavy machinery; acquiring soil transport plan information formulated based on the required man-hours required to transport soil between each area and period information indicating the period during which construction can be commenced in each area within the construction zone; and calculating the ground level of each area within the construction zone at a specified date and time based on the soil transport plan information. Effect of the Invention

[0007] Future topography can be estimated with high accuracy. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a diagram illustrating a hardware configuration of an information processing device. [Diagram 2] FIG. 2 is a functional block diagram of an information processing device. [Diagram 3] 13 is a flowchart showing the process of a soil volume allocation plan creation unit. [Figure 4] FIG. 4(a) is a diagram showing a state in which a planning area is divided into a large number of meshes, and FIG. 4(b) is a diagram showing a state in which each mesh is divided into a cutting mesh and an embankment mesh. [Diagram 5] Figure 5(a) is a diagram showing the state in which the planning area has been divided into cut blocks and fill blocks, and Figure 5(b) is a diagram showing the state in which the cut blocks and fill blocks have been combined to generate cut areas and fill areas. [Figure 6] Figure 6(a) is a diagram showing the state in which the fill block with the largest fill height has been identified, and Figure 6(b) is a diagram showing the state in which the cut block with the largest cut height has been extracted from each of the adjacent cut areas. [Figure 7] FIG. 4 is a diagram for explaining the process of step S18 in FIG. 3. [Figure 8] FIG. 2 is a diagram showing an example of a heavy machine table stored in a heavy machine DB. [Figure 9]FIG. 4 is a diagram for explaining the process of step S20 in FIG. [Figure 10] Figure 10(a) is a graph showing the relationship between the distance traveled by heavy equipment (m) and the amount of soil transported per hour (m3 / h), as stored in the heavy equipment database, and Figure 10(b) is a graph showing the relationship between the distance traveled by heavy equipment (m) and the transportation cost (yen / m3). [Figure 11] 13 is a flowchart showing the process of a future terrain estimation unit. [Figure 12] FIG. 1 shows a process plan creation table. [Figure 13] FIG. 2 shows a process plan creation table (part 2). [Figure 14] FIG. 13 is a diagram showing a construction quantity management table. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an information processing device according to an embodiment will be described in detail with reference to FIGS.

[0010] Fig. 1 shows a schematic diagram of a hardware configuration of an information processing device 100 according to an embodiment. The information processing device 100 in Fig. 1 is a terminal such as a PC (Personal Computer) used by a person (worker) who formulates a construction plan at a stage prior to the start of land development work or the like.

[0011] As shown in FIG. 1, the information processing device 100 includes a CPU (Central Processing Unit) 90, a ROM (Read Only Memory) 92, a RAM (Random Access Memory) 94, a storage unit (SSD (Solid State Drive) or HDD (Hard Disk Drive)) 96, a network interface 97, a display unit 93, an input unit 95, and a portable storage medium drive 99. These components of the information processing device 100 are connected to a bus 98. The display unit 93 includes a liquid crystal display, and the input unit 95 includes a keyboard, a mouse, a touch panel, and the like. In the information processing device 100, the CPU 90 executes a program stored in the ROM 92 or the storage unit 96, or a program read by the portable storage medium drive 99 from the portable storage medium 91, thereby realizing the functions of the components shown in FIG. 2. The functions of the components in FIG. 2 may be realized by an integrated circuit, such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array).

[0012] Fig. 2 shows a functional block diagram of the information processing device 100. In the information processing device 100, the CPU 90 executes a program to realize functions as an earth volume allocation plan creation unit 50 and a future terrain estimation unit 52. Fig. 2 also shows various DBs (three-dimensional terrain data DB 60, three-dimensional design data DB 62, heavy equipment DB 64) stored in the storage unit 96, etc.

[0013] The soil volume allocation plan creation unit 50 specifies the locations to be cut and filled based on the three-dimensional topographical data and three-dimensional design data of the construction scope (planned area) at the stage before construction of land development work, etc. The soil volume allocation plan creation unit 50 also specifies which soil to transport, where and how much, which heavy machinery to use for transportation, etc., and calculates the construction price.

[0014] The future terrain estimation unit 52 assists in creating a process plan for land development work, and generates and outputs (displays) three-dimensional terrain data a predetermined period of time after the start of work based on the created process plan.

[0015] (Regarding the processing of the soil volume allocation plan creation unit 50) First, the soil volume allocation plan creation process performed by the soil volume allocation plan creation unit 50 at the pre-construction stage of land development work or the like will be described in detail with reference to the flowchart of Fig. 3 and other drawings as appropriate. The process of Fig. 3 starts when a worker inputs information on the construction work scope (referred to as the planning area 2) into the information processing device 100 via the input unit 95.

[0016] 3 is started, first, in step S10, the soil volume allocation plan creation unit 50 reads three-dimensional topographical data of the planning area 2 from the three-dimensional topographical data DB 60, and reads three-dimensional design data of the planning area 2 from the three-dimensional design data DB 62. In addition, the soil volume allocation plan creation unit 50 divides the planning area 2 into a large number of meshes.

[0017] For example, when the three-dimensional topographical data of the planning area 2 is data as shown in Fig. 4(a), the soil volume allocation plan creation unit 50 divides the planning area 2 into a plurality of meshes 3. Here, the soil volume allocation plan creation unit 50 divides the planning area 2 into, for example, a square mesh or an irregular mesh. In the case of a square mesh, each side is about 5m to 50m, but is not limited to this.

[0018] In step S10, the soil volume allocation plan creation unit 50 compares the three-dimensional topographical data with the three-dimensional design data to determine whether each mesh 3 is a cut earth mesh (a mesh that requires excavation) or a banking mesh (a mesh that requires banking soil transported from elsewhere). Specifically, the elevation of the center of each mesh 3 indicated by the three-dimensional topographical data is compared with the elevation of the center of each mesh 3 indicated by the three-dimensional design data, and the mesh with a higher elevation in the three-dimensional topographical data is determined as a cut earth mesh, and the mesh with a higher elevation in the three-dimensional design data is determined as a banking mesh. In Fig. 4(b), the cut earth mesh is given the symbol C, and the banking mesh is given the symbol B.

[0019] In step S10, the soil volume allocation plan creation unit 50 generates cut blocks and fill blocks by grouping multiple meshes together. In the example of Fig. 5(a), the soil volume allocation plan creation unit 50 divides the planning area 2 into blocks (in Fig. 5(a), one block is a 2x2 mesh or a 2x1 mesh, length x width), and sets each block as a cut block 4C or a fill block 4B. In Fig. 5(a), if a block consisting of four meshes has three cut meshes and one fill mesh, the block is set as a cut block 4C. In addition, if a block has one cut mesh and three fill meshes, the block is set as a fill block 4B. The soil volume allocation plan creation unit 50 generates the cut block 4C and the fill block 4B based on other predetermined rules.

[0020] Next, in step S12, the soil volume allocation plan creation unit 50 generates a cut area (cut region) and a fill area (fill region) from the consecutive cut blocks 4C and fill blocks 4B. Specifically, as shown in Fig. 5(b), the soil volume allocation plan creation unit 50 generates a cut area by grouping consecutive cut blocks 4C together, and generates a fill area by grouping consecutive fill blocks 4B together. It can also be said that the plan area 2 is divided into a cut area and a fill area by Fig. 5(b).

[0021] Next, in step S14, the soil volume allocation plan creation unit 50 extracts the embankment block (embankment target area) 4B' that is constructable and has the largest embankment height from among the embankment blocks 4B generated in step S10. For example, the soil volume allocation plan creation unit 50 calculates the difference between the elevation in the three-dimensional topographical data of the center of all the embankment blocks 4B and the elevation in the three-dimensional design data, and extracts the embankment block 4B' with the largest calculated difference. Here, as an example, it is assumed that the embankment block 4B' shown in Figure 6(a) has been identified.

[0022] Next, in step S16, the soil volume allocation plan creation unit 50 extracts a cut block (cut target range) with the largest cut height that can be constructed for each cut area adjacent to the fill area including the extracted fill block 4B'. For example, the soil volume allocation plan creation unit 50 calculates the difference between the elevation in the three-dimensional topographical data and the elevation in the three-dimensional design data at the center of each cut block in each of the three cut areas adjacent to the fill area shown in Fig. 6(b), and extracts the cut blocks 4C1, 4C2, and 4C3 with the largest calculated difference.

[0023] Next, in step S18, the soil volume allocation plan creation unit 50 determines the transport distance between the extracted embankment block (4B') and each of the extracted cut blocks (4C1, 4C2, 4C3) using the steepest gradient i of the transport route, the minimum radius of curvature R, and available heavy machinery. The soil volume allocation plan creation unit 50 also sets the cut block with the shortest transport distance among the cut blocks 4C1, 4C2, 4C3 as the source of soil transport to the extracted embankment block 4B'.

[0024] More specifically, the soil volume allocation plan creation unit 50 calculates the transport distance of transport route R1 from cut block 4C1 to fill block 4B' shown in Figure 7, the transport distance of transport route R2 from cut block 4C2 to fill block 4B', and the transport distance of transport route R3 from cut block 4C3 to fill block 4B'.

[0025] Here, there may be multiple candidates for each of the transportation routes R1 to R3, and the transportation route may not be linear but may have a slope. Also, the heavy machinery that can run on each transportation route is different. Therefore, the soil distribution plan creation unit 50 determines the shortest route among the transportation routes that the available heavy machinery can run on as the transportation route R1 to R3.

[0026] For example, when determining the transportation distance of the transportation route R1, the soil volume allocation plan creation unit 50 identifies one or more candidate routes existing between the cut block 4C1 and the bank block 4B' from the three-dimensional topographical data. Then, the soil volume allocation plan creation unit 50 judges whether there is a heavy machine (construction machine) that can travel along the identified candidate route by referring to the heavy machine DB 64 shown in FIG. 2. Here, it is assumed that the heavy machine DB 64 stores a heavy machine table as shown in FIG. 8. The heavy machine table stores the name of the usable heavy machine, the monetary cost required when using the heavy machine, the steepest gradient at which the heavy machine can travel, the minimum radius of curvature, the maximum speed, and the like, in association with each other. The soil volume allocation plan creation unit 50 refers to the information on the heavy machine stored in the heavy machine DB 64, identifies the candidate route that has the heavy machine that can travel among the candidate routes existing between the cut block 4C1 and the bank block 4B', and identifies the candidate route with the shortest distance as the transportation route R1.

[0027] The soil volume allocation plan creation unit 50 also identifies the transportation routes R2 and R3 in the same manner as above. The soil volume allocation plan creation unit 50 then calculates the distances (route distances) of the transportation routes R1 to R3, and identifies the cut earth block corresponding to the transportation route with the shortest calculated distance as the source of soil to the fill earth block 4B. In FIG. 7, it is assumed that the cut earth block 4C1 is identified as the source of soil.

[0028] In the above, a case has been described in which a candidate route that exists between a cut block and an embankment block and that is capable of being traveled by heavy machinery and has the shortest distance is specified as the transportation route R1 to R3. Also, in the above, a case has been described in which a cut block corresponding to the route with the shortest distance among the transportation routes R1 to R3 is specified as the transportation origin. However, this is not limited to this, and for example, a route that exists between a cut block and an embankment block and that is capable of being traveled by heavy machinery and has the lowest cost or the shortest transportation time may be specified as the transportation route R1 to R3. Also, for example, a cut block corresponding to the route with the lowest cost or the shortest transportation time among the transportation routes R1 to R3 may be specified as the transportation origin.

[0029] Next, in step S20, the soil volume allocation plan creation unit 50 calculates the volume of embankment to be the same height as the largest embankment block among the embankment blocks adjacent to the extracted embankment block 4B', and sets this volume as the cutting volume of the cut earth block 4C1 from which the embankment is to be transported. For example, as shown in Fig. 9, assume that there are three-dimensional topographical data and three-dimensional design data, and that there are five adjacent embankment blocks around the embankment block 4B'. In this case, the soil volume allocation plan preparation unit 50 determines the embankment height (the difference between the elevation in the three-dimensional topographical data at the center of the block and the elevation in the three-dimensional design data) of each of the five embankment blocks adjacent to embankment block 4B', and identifies embankment block 4B" with the largest embankment height.Then, based on the elevation difference between the identified embankment block 4B" and embankment block 4B', the soil volume allocation plan preparation unit 50 calculates the embankment volume of embankment block 4B' (the volume of soil required to make embankment block 4B" and embankment block 4B' the same height), and uses this as the cut volume of cut earth block 4C1 from which the embankment is to be transported.

[0030] Next, in step S22, the soil volume allocation plan creation unit 50 updates the three-dimensional topographical data. More specifically, the soil volume allocation plan creation unit 50 assumes that the cut soil volume of the cut soil block 4C1, which is the transportation source, has been transported to the fill soil block 4B', and updates the three-dimensional topographical data.

[0031] Next, in step S24, the soil volume allocation plan creation unit 50 judges whether or not the three-dimensional topographical data matches the three-dimensional design data. If the judgment in step S24 is positive, it means that all soil volume allocation plans have been formulated. If the judgment in step S24 is negative, the process returns to step S14. Then, the processes and judgments in steps S14 to S24 are repeatedly executed until the judgment in step S24 is positive. After that, if the judgment in step S24 is positive, the process proceeds to step S26. Note that, at the stage of proceeding to step S26, it has been specified how much soil should be transported from which cut block to which fill block.

[0032] When proceeding to step S26, the soil volume allocation plan creation unit 50 identifies the heavy machinery to be used for transporting soil along each of the transport routes set up so far from the cut block at the transport source to the fill block at the transport destination. The soil volume allocation plan creation unit 50 may refer to the heavy machinery DB 64 to select the heavy machinery with the lowest monetary cost among the heavy machinery that can be used along each transport route, or may select the heavy machinery with the shortest transport time. At this time, the soil volume allocation plan creation unit 50 can refer to information stored in the heavy machinery DB 64, as shown in Figures 10(a) and 10(b). Figure 10(a) shows the transport distance (m) and transport volume of soil per hour (m) of heavy machinery 1 to 3. 3 / h), and Fig. 10(b) shows the relationship between the transportation distance (m) and transportation cost (yen / m 3 ) is shown. For example, when an operator inputs a request to prioritize cost, the soil volume allocation plan creation unit 50 refers to FIG. 10(b) and selects the heavy machinery having the lowest cost for the transport distance. When an operator inputs a request to prioritize time, the soil volume allocation plan creation unit 50 refers to FIG. 10(a) and selects the heavy machinery having the largest soil volume transported per hour for the transport distance.

[0033] Next, in step S28, the soil volume allocation plan creation unit 50 calculates the construction price based on the cost of the heavy equipment selected in step S26, the transportation distance, and other expenses. When calculating the construction price, the soil volume allocation plan creation unit 50 can use information such as that shown in Fig. 10(b). Then, the soil volume allocation plan creation unit 50 generates a screen that displays the formulated soil volume allocation plan and the calculated construction price, and displays it on the display unit 93. After that, all the processing in Fig. 3 is terminated.

[0034] (Regarding the processing of the future terrain estimation unit 52) Next, the processing of the future terrain estimation unit 52 will be described in detail with reference to the flowchart of Fig. 11 and other drawings as appropriate. This processing supports the formulation of a construction plan for the planning area 2, and generates and outputs (displays) terrain data for a predetermined period of time after the construction plan.

[0035] When the process of FIG. 11 is started, first, in step S50, the future terrain estimation unit 52 acquires three-dimensional terrain data of the planning area 2 from the three-dimensional terrain data DB 60, and acquires three-dimensional design data of the planning area 2 from the three-dimensional design data DB 62. The future terrain estimation unit 52 also acquires information on the soil volume allocation plan obtained in the process of FIG. 3 (information indicating from where to where, which heavy equipment is used, and how much soil is to be transported) from the soil volume allocation plan creation unit 50. The future terrain estimation unit 52 also acquires information on the capacity of the heavy equipment as shown in FIG. 10(a) from the heavy equipment DB 64. Note that, if the process of FIG. 3 has not been performed in advance, in step S50, the same process as that of FIG. 3 may be performed using three-dimensional terrain data, three-dimensional design data, etc. to acquire information on the soil volume allocation plan.

[0036] Next, in step S52, the future topography estimation unit 52 calculates the construction quantity for each combination of cut blocks and bank blocks. The construction quantity means the man-hours required for transporting soil. At this time, the future topography estimation unit 52 calculates the construction quantity for each heavy machinery used. For example, as shown in the process plan creation table in FIG. 12, as the construction quantity when transporting soil from the cut block C1 to the bank block B1, it is assumed that "3585" is calculated as the construction quantity of the work type "b" (e.g., transport within a block), and "3921" is calculated as the construction quantity of the work type "c" (e.g., rough construction). It is also assumed that "18472" is calculated as the construction quantity of the work type "d" (e.g., transport from the cut block to the bank block using the first heavy machinery), and "46549" is calculated as the construction quantity of the work type "e" (e.g., transport from the cut block to the bank block using the second heavy machinery). The construction quantities are calculated similarly for other combinations of cut blocks and bank blocks.

[0037] Next, in step S54, the future terrain estimation unit 52 calculates the total number of days required for each construction quantity (number of construction days) based on the construction quantities calculated in step S52 and the capacity information of the heavy machinery (FIG. 10(a)). The future terrain estimation unit 52 stores the calculated number of construction days in the construction plan creation table of FIG.

[0038] Next, in step S56, the future topography estimation unit 52 accepts input of start conditions for each combination of cut blocks and fill blocks from the worker. For example, the worker selects a period during which construction cannot be performed for each combination of cut blocks and fill blocks in the construction schedule creation table of FIG. 12. In FIG. 12, the period during which construction cannot be performed is shown in gray. Note that a period during which construction cannot be performed means, for example, a period during which land acquisition has not been completed or a period during which construction must be completed. Note that in the construction schedule creation table of FIG. 12, a period during which construction cannot be performed can be set for the period from the start month (first month) to the 18th month.

[0039] Next, in step S58, the future terrain estimation unit 52 accepts input of a process plan from a worker. The worker refers to the process plan creation table in FIG. 12 to consider when to perform which tasks, and inputs the work period of each task into the process plan creation table as shown in FIG. 13. When creating a process plan, the worker takes into consideration the order in which heavy machinery is arranged and introduced. Note that the process plan may be created automatically using, for example, machine learning or optimization calculation. In this case, the worker can simply check the created process plan and make corrections, etc.

[0040] Next, in step S60, the future topography estimation unit 52 calculates the construction quantity scheduled to be completed each month after the start of construction based on the accepted process plan. FIG. 14 shows a table (construction quantity management table) indicating the construction quantity scheduled to be completed each month. The construction quantity management table in FIG. 14 shows the construction quantity, number of construction days, and daily construction amount for each type of work in a combination of cut blocks and fill blocks. The table in FIG. 14 also shows the construction quantity scheduled to be completed each month. The construction quantity scheduled to be completed each month is the product of the number of construction days and the daily construction amount (number of construction days x daily construction amount), which is the cumulative number since the start of construction. The number of construction days can be obtained from the process plan (work period of each work) in the process plan creation table in FIG. 13.

[0041] Next, in step S62, the future topography estimation unit 52 calculates the construction progress rate (hereinafter simply referred to as the progress rate) of each cut block and each bank block after a predetermined period (predetermined month) from the start of construction. Note that the predetermined month is assumed to be selected in advance by the worker.

[0042] For example, when focusing on a certain cut block (hereinafter referred to as a specified cut block), the construction quantity (planned) related to the specified cut block can be obtained by extracting and adding up the construction quantities of the rows in which the specified cut block is the transfer source in the process plan creation table in FIG. 13. Also, the construction quantity (completed) related to the specified cut block can be obtained by extracting and adding up the construction quantities that have been completed by a specified month from all rows in which the specified cut block is the transfer source in the construction quantity management table in FIG. 14. Therefore, the future topography estimation unit 52 can calculate the progress rate of the specified cut block in a specified month by calculating the ratio of the construction quantity (completed) to the construction quantity (planned). The progress rate of the fill block in a specified month can be calculated in the same manner.

[0043] Next, in step S64, the future terrain estimation unit 52 sets the progress rate of each block as the progress rate of each mesh contained in each block, and calculates the terrain change amount of each mesh by multiplying the cut height or fill height of each mesh by the progress rate. The future terrain estimation unit 52 also edits the terrain change amount of each mesh by reflecting it in the three-dimensional terrain data, and creates three-dimensional terrain data for the specified month. Then, the future terrain estimation unit 52 displays the three-dimensional terrain data for the specified month on the display unit 93.

[0044] As a result, the three-dimensional topographical data for a specific month can be displayed on the display unit 93 in a state that the worker can check. In addition, the worker can check how the three-dimensional topographical data changes by changing the specific month. The future topographical estimation unit 52 may create three-dimensional topographical data for each month in advance. In this case, the future topographical estimation unit 52 may sequentially display how the three-dimensional topographical data changes for each month.

[0045] As described above in detail, according to this embodiment, the soil volume allocation plan creation unit 50 generates a cut area and a fill area from the three-dimensional topographical data and the three-dimensional design data of the planning area 2 (S12), and extracts the fill area block 4B' that is workable and has the largest fill height from the fill area (S14). The soil volume allocation plan creation unit 50 also extracts the cut blocks 4C1-4C3 that are workable and have the largest cut height from each of a plurality of cut areas adjacent to the fill area including the fill block 4B' (S16). Then, the soil volume allocation plan creation unit 50 sets the cut block from which the cut is to be transferred from among the extracted cut blocks 4C1-4C3 based on the transportation conditions (e.g., transportation distance) (S18). In this way, in this embodiment, an appropriate cut block can be set as the cut block from which the cut is to be transferred for the fill block with the largest fill height, taking into account the actual construction procedure and transportation conditions. For example, when creating an earthwork volume allocation plan between each block, pursuing the minimum amount of work may result in an earthwork volume allocation plan that is far removed from actual construction; however, by adopting a method such as that of this embodiment, it is possible to create an appropriate earthwork volume allocation plan that can actually be used for construction.

[0046] In this embodiment, the soil volume allocation plan creation unit 50 selects the cut block with the shortest transportation distance from the cut blocks extracted in step S16 and sets it as the cut block to be transported, so that it is possible to set an appropriate cut block as the transport source. The soil volume allocation plan creation unit 50 may select the cut block with the shortest transportation time or the cut block with the smallest transportation cost (expense) from the cut blocks extracted in step S16, and in this case, it is possible to set an appropriate cut block as the transport source. The soil volume allocation plan creation unit 50 may select the cut block to be transported from the cut blocks extracted in step S16, taking into consideration two or all of the transportation conditions of transportation time, transportation cost, and transportation distance. For example, it is possible to score two or all of the transportation conditions of the cut blocks extracted in step S16, and set the cut block with the best total score as the transport source.

[0047] In addition, in this embodiment, when calculating the transport distance between the embankment block with the largest embankment height and the cut block, the soil volume allocation plan creation unit 50 takes into consideration the available heavy equipment, the steepest gradient i of the transport route, and the minimum radius of curvature R, so that it is possible to calculate the transport distance between the embankment block with the largest embankment height and the cut block by excluding transport routes on which the available heavy equipment cannot travel.

[0048] In addition, in this embodiment, the soil volume allocation plan creation unit 50 calculates the amount of fill required to reach the same height as the largest embankment block 4B″ among the embankment blocks adjacent to the embankment block 4B′ with the largest embankment height (S20), and updates the three-dimensional topographical data based on the calculated amount of fill (S22). In this way, it is possible to obtain three-dimensional topographical data after the embankment block 4B′ with the largest embankment height has been filled. In addition, in this embodiment, while updating the three-dimensional topographical data, the processing and judgment of steps S14 to S24 are repeatedly executed until the three-dimensional topographical data and the three-dimensional design data match, so that the soil transportation procedure until the planning area 2 matches the three-dimensional design data can be appropriately determined step by step.

[0049] According to this embodiment, the future terrain estimation unit 52 acquires information on the amount of soil to be transported between each block in the planning area 2 (S50), and calculates the amount of construction work between each block based on information on available heavy machinery (S52). The future terrain estimation unit 52 also receives input of a construction plan created based on the amount of construction work between each block and the start conditions for each block (S58). The future terrain estimation unit 52 then calculates the ground elevation of each mesh included in each block in a specified month based on the construction plan (S60, S64). In this way, in this embodiment, the ground elevation of each mesh in a specified month is calculated from the construction plan between each block, so that the ground elevation of each mesh in a specified month when construction is carried out according to the construction plan can be calculated with high accuracy. This allows the future terrain to be estimated with high accuracy.

[0050] Furthermore, in this embodiment, the future terrain estimation unit 52 generates and outputs three-dimensional terrain data within the planning area 2 based on the ground elevation of each mesh in a specified month, allowing the worker to check what the state of the terrain will be in a specified month.

[0051] Furthermore, in this embodiment, the future terrain estimation unit 52 calculates the progress rate of construction in each block and each mesh in a specified month based on the process plan, and calculates the ground level of each mesh from the calculated progress rate, so that the ground level of each mesh can be calculated accurately and easily.

[0052] In the above embodiment, the information processing device 100 has both the functions of the soil volume allocation plan creation unit 50 and the future terrain estimation unit 52, but the present invention is not limited to this. For example, the information processing device 100 may have only at least one of the functions of the soil volume allocation plan creation unit 50 and the future terrain estimation unit 52. Also, at least one of the functions of the soil volume allocation plan creation unit 50 and the future terrain estimation unit 52 may be provided in a server, and the server and a client terminal used by an operator may be connected via a network.

[0053] The above-described embodiment is a preferred example of the present invention, but the present invention is not limited to this embodiment and can be modified in various ways without departing from the scope of the present invention. [Explanation of symbols]

[0054] 2 Planning Area 50 Soil Allocation Planning Department 52 Future Topography Estimation Department 60 3D Topographical Data DB 62 3D design data DB 64 Heavy machinery DB 100 Information processing device

Claims

1. acquiring information on the amount of soil transported between each area within a predetermined construction area; Calculating the required man-hours required for transporting soil between each of the regions based on information about available heavy machinery; A process of acquiring soil transportation plan information formulated based on the required man-hours required for transporting soil between each of the areas and period information indicating the period during which construction can be started in each of the areas within the construction zone; A method for estimating future topography, comprising a step of calculating the ground level of each area within the construction zone at a specified date and time based on the soil transportation plan information.

2. 2. The method for estimating future topography according to claim 1, further comprising the step of generating and outputting three-dimensional topographical data within the construction area based on the ground elevation of each area within the construction area at the specified date and time.

3. The future topography estimation method according to claim 1 or 2, further comprising a step of formulating soil transportation plan information based on the required man-hours required for transporting soil between each of the areas and commencement information indicating whether construction can be commenced in each area within the construction zone.

4. A future topography estimation method according to any one of claims 1 to 3, wherein in the calculating step, a construction progress rate of each area within the construction zone at the specified date and time is calculated based on the soil transportation plan information, and the ground level of each area within the construction zone is calculated from the calculated construction progress rate of each area within the construction zone.

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