JP7756587B2 - Groundwater treatment support device and groundwater treatment support program - Google Patents

Description

The present invention relates to a groundwater treatment support device and a groundwater treatment support program.

In areas where quarrying or other similar activities have been carried out in the past, the land may not have been properly backfilled. There are also cases where it is not necessary to comply with development standards.

On the other hand, solid ground that can be used for quarrying does not allow water to permeate easily, so if drainage plans are not properly formulated, groundwater may accumulate. In this case, combined with insufficient backfilling, it can cause liquefaction during an earthquake. In particular, if the location is on a mountain slope, it could cause a landslide.

Traditionally, the following technologies have been applicable to effectively develop groundwater drainage plans:

Patent Document 1 discloses a groundwater treatment method that aims to enable three-dimensional analysis of groundwater and other conditions using a small number of boreholes.

In this groundwater treatment method, a curved boring is used to drill a hole in the ground within the investigation area, and water pressure, flow velocity, flow direction, soil quality, etc. are investigated at any point within the drilled hole.

Japanese Patent Application Laid-Open No. 2003-321991

However, the technology disclosed in Patent Document 1 has the problem that it cannot detect impermeable layers and therefore cannot contribute to measures to deal with groundwater caused by impermeable layers.

This disclosure was made in consideration of the above circumstances, and aims to provide a groundwater treatment support device and a groundwater treatment support program that can contribute to measures to address groundwater caused by impermeable layers.

The groundwater treatment support device according to the present invention, as described in claim 1, includes an acquisition unit that acquires depth information indicating the depth of the impermeable layer obtained by ground surveys at multiple points in a target area and two-dimensional position information indicating the horizontal position of the corresponding points; a derivation unit that uses the depth information and two-dimensional position information corresponding to the acquired multiple points to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area; and a presentation unit that uses the derived three-dimensional position information to present support information regarding groundwater treatment in the target area.

The groundwater treatment support device of the present invention described in claim 1 acquires depth information indicating the depth of the impermeable layer obtained by ground surveys at multiple points in a target area, and two-dimensional position information indicating the horizontal position of the corresponding points. The depth information and two-dimensional position information corresponding to the acquired multiple points are used to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area. The derived three-dimensional position information is then used to present support information regarding the treatment of groundwater in the target area, thereby contributing to measures to deal with groundwater caused by impermeable layers.

The groundwater treatment support device according to the present invention described in claim 2 is the groundwater treatment support device described in claim 1, wherein the support information includes at least one of information regarding whether the groundwater can be discharged and information regarding the treatment of the groundwater.

According to the groundwater treatment support device of the present invention described in claim 2, by including support information that includes at least one of information regarding the feasibility of groundwater drainage and information regarding groundwater treatment, measures can be taken to address groundwater caused by impermeable layers in accordance with the applied information.

The groundwater treatment support device according to the present invention described in claim 3 is the groundwater treatment support device described in claim 2, wherein the information related to the groundwater treatment includes information indicating the drainage route of the groundwater.

According to the groundwater treatment support device of the present invention described in claim 3, by including information on groundwater treatment that indicates the groundwater drainage route, measures can be taken to deal with groundwater originating from impermeable layers using that drainage route.

The groundwater treatment support device according to the present invention, as described in claim 4, is the groundwater treatment support device as described in any one of claims 1 to 3, further comprising an identification unit that uses the three-dimensional position information to identify a ground investigation point different from the multiple points, which contributes to improving the accuracy of the three-dimensional position information, and the presentation unit further presents the identified ground investigation point.

The groundwater treatment support device according to the present invention, as described in claim 4, uses three-dimensional position information to identify and present ground investigation points that are different from the multiple points and that contribute to improving the accuracy of the three-dimensional position information. This makes it possible to derive three-dimensional position information with higher accuracy, thereby enabling more accurate measures to be taken against groundwater caused by impermeable layers.

The groundwater treatment support program of the present invention described in claim 5 causes a computer to execute the following process: acquire depth information indicating the depth of an impermeable layer obtained by ground surveys at multiple points in a target area and two-dimensional position information indicating the horizontal position of the corresponding points; use the depth information and two-dimensional position information corresponding to the acquired multiple points to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area; and use the derived three-dimensional position information to present support information regarding groundwater treatment in the target area.

The groundwater treatment support program of the present invention described in claim 5 acquires depth information indicating the depth of the impermeable layer obtained by ground surveys at multiple points in a target area, and two-dimensional position information indicating the horizontal position of the corresponding points. The depth information and two-dimensional position information corresponding to the acquired multiple points are used to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area. The derived three-dimensional position information is then used to present support information regarding the treatment of groundwater in the target area, thereby contributing to measures to deal with groundwater caused by impermeable layers.

As explained above, the present invention can contribute to measures against groundwater caused by impermeable layers.

1 is a block diagram showing an example of a hardware configuration of a groundwater treatment support device according to an embodiment. 1 is a block diagram showing an example of a functional configuration of a groundwater treatment support device according to an embodiment. 1 is a chronological cross-sectional view illustrating ANAGO (registered trademark) applied to a groundwater treatment support device according to an embodiment. FIG. 10 is a plan view illustrating a method for determining additional drilling points according to an embodiment of the present invention. FIG. 2 is a schematic diagram showing an example of the configuration of a bowling information database according to the embodiment. FIG. 2 is a schematic diagram illustrating an example of a configuration of a three-dimensional position information database according to the embodiment. FIG. 1 is a plan view showing an example of a boring position in a target area according to an embodiment. 10 is a flowchart illustrating an example of a groundwater treatment support process according to the embodiment. FIG. 10 is a front view showing an example of a bowling location presentation screen according to the embodiment. FIG. 10 is a front view showing an example of a support screen according to the embodiment.

Hereinafter, an example embodiment of the present invention will be described in detail with reference to the drawings. Note that in this embodiment, a boring survey is applied as the ground investigation of the present invention, but this is not limited to this. For example, other ground investigations such as liquefaction surveys, soil surveys, and current site surveys may also be applied as the ground investigation of the present invention.

First, the configuration of the groundwater treatment support device 10 according to this embodiment will be described with reference to Figures 1 and 2. Figure 1 is a block diagram showing an example of the hardware configuration of the groundwater treatment support device 10 according to this embodiment. Figure 2 is a block diagram showing an example of the functional configuration of the groundwater treatment support device 10 according to this embodiment. Examples of the groundwater treatment support device 10 include information processing devices such as personal computers and server computers.

As shown in FIG. 1, the groundwater treatment support device 10 according to this embodiment includes a CPU (Central Processing Unit) 11, memory 12 as a temporary storage area, non-volatile memory unit 13, input unit 14 such as a keyboard and mouse, display unit 15 such as an LCD display, media read/write device (R/W) 16, and communication interface (I/F) unit 18. The CPU 11, memory 12, memory unit 13, input unit 14, display unit 15, media read/write device 16, and communication I/F unit 18 are connected to one another via bus B. The media read/write device 16 reads information written to recording medium 17 and writes information to recording medium 17.

The storage unit 13 is realized by a hard disk drive (HDD), solid state drive (SSD), flash memory, etc. The storage unit 13 serves as a storage medium and stores a groundwater treatment support program 13A. The groundwater treatment support program 13A is stored (installed) in the storage unit 13 when a recording medium 17 containing the program 13A is set in the medium reading/writing device 16 and the medium reading/writing device 16 reads the program 13A from the recording medium 17. The CPU 11 reads the groundwater treatment support program 13A from the storage unit 13 as appropriate, expands it into memory 12, and sequentially executes the processes contained in the groundwater treatment support program 13A.

The memory unit 13 also stores a bowling information database 13B and a three-dimensional position information database 13C. Details of the bowling information database 13B and the three-dimensional position information database 13C will be described later.

Next, with reference to Figure 2, the functional configuration of the groundwater treatment support device 10 according to this embodiment will be described.

As shown in FIG. 2, the groundwater treatment support device 10 according to this embodiment includes an acquisition unit 11A, a derivation unit 11B, a presentation unit 11C, and an identification unit 11D. The CPU 11 of the groundwater treatment support device 10 executes the groundwater treatment support program 13A, thereby functioning as the acquisition unit 11A, the derivation unit 11B, the presentation unit 11C, and the identification unit 11D.

The acquisition unit 11A in this embodiment acquires depth information indicating the depth of the impermeable layer and two-dimensional position information indicating the horizontal position of the corresponding positions obtained by a ground survey (a boring survey in this embodiment, but also referred to as a "ground survey" hereinafter) at multiple points in a target area (hereinafter referred to as the "target area"). Note that, in this embodiment, this depth information and two-dimensional position information are acquired by reading them from a boring information database 13B pre-stored in the memory unit 13, but this is not limited to this. For example, the depth information and two-dimensional position information may be acquired by acquiring the depth information and two-dimensional position information input via the input unit 14 or received via the communication I/F unit 18. Hereinafter, the boring survey conducted to obtain the depth information and two-dimensional position information acquired by the acquisition unit 11A is also referred to as the "initial boring survey."

The derivation unit 11B according to this embodiment uses the depth information and two-dimensional position information corresponding to multiple points acquired by the acquisition unit 11A to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area. The groundwater treatment support device 10 according to this embodiment derives this three-dimensional position information using ANAGO (registered trademark) (ANAlysis for Geologic Optimum), a system developed by Takenaka Corporation. ANAGO (registered trademark) is a design and construction management system that visualizes the required pile length by three-dimensionally modeling the underground support layer, which cannot be seen directly. Figure 3 shows chronological cross-sectional views to explain ANAGO (registered trademark) used in the groundwater treatment support device 10 according to this embodiment.

As shown in Figure 3, ANAGO (registered trademark) is a system that corrects the depth and inclination of the bearing layer determined from boring data and pile construction results based on the latest data added daily, visualizes it in 3D, and automatically determines the length to the bearing layer of piles to be driven in the future. Note that the leftmost and center figures in the top row of Figure 3 show the situation at the design stage, while the remaining figures show the situation at the construction stage. ANAGO (registered trademark) is a well-known technology, so further explanation will be omitted.

The derivation unit 11B in this embodiment uses a three-dimensional model of the support layer obtained during processing using ANAGO (registered trademark) to derive the three-dimensional position of the upper surface of the support layer as the three-dimensional position of the upper surface of the impermeable layer. In this way, the groundwater treatment support device 10 in this embodiment derives three-dimensional position information using ANAGO (registered trademark) developed by the present applicant, but this is not limited to this. For example, three-dimensional position information may also be derived using a conventionally known BIM (Building Information Modeling) model or a three-dimensional CAD (Computer Aided Design) system.

The presentation unit 11C according to this embodiment then presents support information regarding groundwater treatment in the target area using the three-dimensional position information derived by the derivation unit 11B. Note that while the presentation unit 11C according to this embodiment presents various types of information by display using the display unit 15, this is not limitative. For example, the presentation unit 11C may present various types of information by audio using an audio playback device such as a microphone, or by printing using an image forming device such as a printer.

In the groundwater treatment support device 10 according to this embodiment, support information includes both information regarding whether groundwater can be discharged and information regarding groundwater treatment, but this is not limited to this. For example, support information may be provided by using only one of information regarding whether groundwater can be discharged or information regarding groundwater treatment.

In addition, while the groundwater treatment support device 10 according to this embodiment applies information including information indicating groundwater drainage routes as information related to groundwater treatment, this is not limited to this. For example, information indicating various pieces of advice regarding groundwater treatment may be applied as information related to groundwater treatment. Examples of information indicating advice in this form include information indicating whether there is an underground escape route for rainwater, etc., and if there is no escape route, information indicating the optimal drainage route (for example, information indicating possible drainage routes toward a detention pond), information suggesting the TOFT method (a seismic solidification method) (registered trademark) or liquefaction countermeasure work such as sand compaction, etc.

In addition, in this embodiment, both a contour map and a cross-sectional view of the target area are used as information indicating the groundwater drainage route, but this is not limited to this. For example, only either a contour map or a cross-sectional view of the target area may be used as information indicating the groundwater drainage route.

On the other hand, the identification unit 11D according to this embodiment uses the above-mentioned three-dimensional position information to identify a location for a ground survey (hereinafter referred to as an "additional drilling survey") that is different from the above-mentioned multiple locations and that contributes to improving the accuracy of the three-dimensional position information. The presentation unit 11C according to this embodiment then further presents the location for the additional drilling survey identified by the identification unit 11D.

In particular, the identification unit 11D of this embodiment identifies more points as points for additional drilling surveys in a divided area where the degree of unevenness of the upper surface of the impermeable layer indicated by the three-dimensional position information (hereinafter referred to as "unevenness") is higher.

In addition, in the identification unit 11D of this embodiment, the higher the slope of the upper surface of the impermeable layer indicated by the three-dimensional position information in the divided area, the more points are identified as points for additional drilling surveys.

That is, in this embodiment, as shown in FIG. 4 as an example, an initial drilling survey is carried out at multiple initial drilling points 52 in a target area 50. In the groundwater treatment support device 10 according to this embodiment, the acquisition unit 11A acquires depth information and two-dimensional position information obtained from the initial drilling survey, and the derivation unit 11B and identification unit 11D use the acquired information to determine additional drilling points 54, and the presentation unit 11C presents the determined additional drilling points 54. Note that FIG. 4 is a plan view provided for explaining the method for determining additional drilling points according to this embodiment.

Next, the bowling information database 13B according to this embodiment will be described with reference to Figure 5. Figure 5 is a schematic diagram showing an example of the configuration of the bowling information database 13B according to this embodiment.

As shown in Figure 5, the bowling information database 13B in this embodiment stores the target area ID (Identification), initial information, and additional information in association with each other.

The target area ID is information that is assigned in advance and is unique to each target area in order to individually identify the target area.

The initial information is information related to the initial drilling survey described above, and includes information on the drilling position and depth. The drilling position is information indicating the two-dimensional position of the point where the initial drilling survey was conducted, and corresponds to the two-dimensional position information described above. In this embodiment, latitude and longitude information is used as information indicating the drilling position, but this is not limited to this. For example, a two-dimensional coordinate position with a predetermined reference position for each target area as the origin may be used as information indicating the drilling position. The depth is information indicating the position of the top surface of the impermeable layer obtained in the corresponding initial drilling survey, and corresponds to the depth information described above. In this embodiment, information indicating the depth from the ground surface is used as information indicating the depth, but this is not limited to this. For example, information indicating the height above sea level of the top surface of the impermeable layer may be used as information indicating the depth.

Furthermore, the additional information is information related to the additional drilling survey described above, and includes information on the drilling position and depth. Here, the drilling position is information indicating the two-dimensional position of the point where the additional drilling survey was conducted, and is information similar to the drilling position in the initial information described above. Furthermore, the depth is information indicating the position of the top surface of the impermeable layer obtained in the corresponding additional drilling survey, and is information similar to the information indicating the depth in the initial information described above.

Next, the three-dimensional position information database 13C according to this embodiment will be described with reference to Figure 6. Figure 6 is a schematic diagram showing an example of the configuration of the three-dimensional position information database 13C according to this embodiment.

As shown in FIG. 6, the three-dimensional position information database 13C according to this embodiment stores the target area ID and three-dimensional position information in association with each other.

The above target area ID is the same information as the target area ID in the boring information database 13B, and the three-dimensional position information is the above-mentioned three-dimensional position information derived using the corresponding initial information.

Next, a specific example of a target area according to this embodiment will be described with reference to Figure 7. Figure 7 is a plan view showing an example of a boring position in a target area according to this embodiment.

As shown in Figure 7, the groundwater treatment support device 10 according to this embodiment includes a target area 60, which is a site including a rectangular area in plan view (hereinafter referred to as the "building area") 62 where a building will be constructed. To the west of the building area 62 in the target area 60 is a planned detention pond area 64, which is lower than the building area 62 and where a detention pond is planned to be constructed.

As an example, as shown in Figure 7, in the target area 60 according to this embodiment, four points C, D, G, and H (hereinafter referred to as the "initial four points") located at the four corner points of the building area 62 are pre-determined as initial drilling points. Furthermore, in the target area 60 according to this embodiment, four points A, B, E, and F (hereinafter referred to as the "additional four points") located in an area outside the building area 62 from the initial four points are determined as additional drilling points by the groundwater treatment support process (see also Figure 8), which will be described later.

Next, the operation of the groundwater treatment support device 10 according to this embodiment will be described with reference to Figures 8 to 10. When a user of the groundwater treatment support device 10 (hereinafter simply referred to as "user") inputs an instruction to start the execution of the groundwater treatment support process via the input unit 14, the CPU 11 of the groundwater treatment support device 10 executes the groundwater treatment support program 13A, thereby executing the groundwater treatment support process shown in Figure 8. Figure 8 is a flowchart showing an example of the groundwater treatment support process according to this embodiment. Note that, to avoid confusion, the case will be described here in which initial information including the target area ID of the boring information database 13B and information about the initial four locations mentioned above, as an example, is pre-registered. Furthermore, to avoid confusion, the case will be described here in which the target area to be processed is pre-specified.

In step 100 of FIG. 8, the CPU 11 reads initial information corresponding to a pre-specified target area from the boring information database 13B. In step 102, the CPU 11 uses the read initial information to derive three-dimensional position information indicating the three-dimensional position of the top surface of the impermeable layer in the target area, as described above. The CPU 11 then stores the derived three-dimensional position information in the three-dimensional position information database 13C together with the target area ID corresponding to the corresponding target area.

In step 104, the CPU 11 uses the derived three-dimensional position information to determine whether or not an additional drilling survey is necessary, and if the determination is negative, proceeds to step 106. In this embodiment, the determination of whether or not an additional drilling survey is necessary is made by determining whether or not the state of the impermeable layer extending from the building area 62 to the planned reservoir area 64 can be adequately grasped through the drilling surveys conducted up to that point, but it goes without saying that this is not limited to this.

In step 106, the CPU 11 determines additional drilling points as described above, using the condition of the top surface of the impermeable layer indicated by the derived three-dimensional position information.

In step 108, the CPU 11 controls the display unit 15 to display a predetermined bowling location presentation screen using the determined additional bowling location, and in step 110, the CPU 11 waits until the specified information is input.

Figure 9 shows an example of a drilling site presentation screen according to this embodiment when the target area 60 shown in Figure 7 is specified as the target area to be processed. As shown in Figure 9, the drilling site presentation screen according to this embodiment displays a message indicating that a drilling survey will be conducted at the displayed additional drilling site and prompting the user to input the position (depth information) of the top surface of the impermeable layer obtained by the drilling survey. The drilling site presentation screen according to this embodiment also displays a plan view showing the positions of the initial drilling site and the additional drilling site. Furthermore, the drilling site presentation screen according to this embodiment displays an input field 15A for inputting depth information indicating the position of the top surface of the impermeable layer obtained by the drilling survey for the additional drilling site.

As an example, when the drilling site presentation screen shown in Figure 9 is displayed on the display unit 15, the user conducts a drilling survey of one of the additional drilling sites and inputs the depth information obtained from the survey into the corresponding input area 15A via the input unit 14. In response, step 110 is judged as positive, and the process proceeds to step 112.

In step 112, the CPU 11 associates the depth information entered via the drilling site presentation screen with two-dimensional position information indicating the location of the corresponding additional drilling site, and stores this as additional information in the memory area of the corresponding target area in the drilling information database 13B.

In step 114, the CPU 11 determines whether the processing of steps 108 to 112 has been completed for all additional drilling sites. If the determination is negative, the processing returns to step 108; if the determination is positive, the processing returns to step 102. In this embodiment, once the user has completed the drilling surveys for all additional drilling sites and finished inputting the depth information obtained from each survey, the user selects the End button 15B on the drilling site presentation screen. Therefore, by determining whether the End button 15B has been selected, the CPU 11 can determine whether the processing of steps 108 to 112 has been completed for all additional drilling sites. Note that when repeatedly executing the processing of steps 102 to 114, the CPU 11 derives three-dimensional position information in step 102 using all of the initial information and additional information stored up to that point in the drilling information database 13B, and stores (overwrites) this information in the three-dimensional position information database 13C.

On the other hand, if the determination in step 104 is affirmative, i.e., if additional drilling surveys are no longer necessary, proceed to step 116.

In step 116, the CPU 11 uses the three-dimensional position information finally obtained by the processing of step 102 (hereinafter referred to as "final three-dimensional position information") to create support screen presentation information that shows a support screen with a predetermined configuration. In step 118, the CPU 11 controls the display unit 15 to display a support screen using the created support screen presentation information, and in step 120, the CPU 11 waits until specified information is input.

Figure 10 shows an example of a support screen according to this embodiment when the target area 60 shown in Figure 7 is specified as the target area to be processed. As shown in Figure 10, the support screen according to this embodiment displays a contour map and a cross-sectional view obtained using the final 3D position information. Note that in this embodiment, a cross-sectional view of a cutting plane J that passes through the lowest point L indicated by the contour line in the contour map and is parallel to the east-west direction is automatically created and displayed as the cross-sectional view, but this is not limited to this. For example, a configuration may be adopted in which the user is prompted to specify a desired cutting plane on the contour map, and a cross-sectional view of the area cut along the specified cutting plane is created and displayed.

In addition, the support screen according to this embodiment displays information indicating that it is currently difficult to drain groundwater, information indicating recommended drainage routes, and information indicating countermeasures (in the example shown in Figure 10, information encouraging the implementation of liquefaction countermeasure work).

By referring to the support screen, users can grasp the above information and accurately and quickly formulate future measures regarding groundwater.

When the support screen shown in Figure 10 is displayed on the display unit 15 as an example, the user of the groundwater treatment support device 10 understands the displayed content and then selects the end button 15B using the input unit 14. In response, step 120 is judged as positive, and the groundwater treatment support process ends.

As described above, this embodiment acquires depth information indicating the depth of the impermeable layer obtained by ground surveys at multiple points in a target area, and two-dimensional position information indicating the horizontal position of the corresponding points. The depth information and two-dimensional position information corresponding to the acquired multiple points are used to derive three-dimensional position information indicating the three-dimensional position of the impermeable layer in the target area, and the derived three-dimensional position information is used to present support information regarding the treatment of groundwater in the target area. This can therefore contribute to measures to deal with groundwater caused by impermeable layers.

Furthermore, according to this embodiment, the support information includes at least one of information regarding whether groundwater can be drained and information regarding groundwater treatment. Therefore, measures can be taken to deal with groundwater caused by impermeable layers in accordance with this information.

Furthermore, according to this embodiment, information regarding groundwater treatment includes information indicating the groundwater drainage route. Therefore, measures can be taken to deal with groundwater originating from impermeable layers using this drainage route.

Furthermore, according to this embodiment, three-dimensional position information is used to identify and present locations for further ground investigation that will contribute to improving the accuracy of the three-dimensional position information. This allows for more accurate measures to be taken against groundwater caused by impermeable layers.

In the above embodiment, the initial drilling points are only points within the target area, but this is not limited to this. For example, multiple points in the area surrounding the target area may also be used as initial drilling points.

In this case, information from locations where drilling surveys have already been conducted can be applied, making it possible to identify locations where additional ground surveys can be conducted at lower cost than with the groundwater treatment support device 10 of this embodiment.

Furthermore, as a variation of this form, points both inside the target area and in the surrounding area may be applied as initial drilling points.

In addition, in the above embodiment, a case where additional drilling locations are determined using a three-dimensional model of the impermeable layer obtained during processing using ANAGO (registered trademark) was described, but this is not limited to this. For example, additional drilling locations may also be determined using a trained model.

An example of a trained model in this form is a machine-learned model in which the above-mentioned three-dimensional position information and the above-mentioned two-dimensional position information used to derive that three-dimensional position information are used as input information, and the corresponding ground survey points are used as output information, which ultimately increases the accuracy of deriving the three-dimensional position information.

In this case, the trained model is trained using the initial information and additional information that were previously registered in the boring information database 13B and correspond to a target area whose ground conditions are similar to those of the area to be processed, and that ultimately increased the accuracy of deriving three-dimensional position information, as well as the corresponding three-dimensional position information.

The trained model in this form can be an AI (Artificial Intelligence) model that uses a trained CNN (Convolutional Neural Network), as well as other machine learning models such as AI other than CNN.

This method makes it possible to identify locations for additional ground surveys with greater precision based on past performance.

It goes without saying that the configurations of the various databases applied in the above embodiments are merely examples and are not limited to the examples shown.

Furthermore, the flow of the groundwater treatment support process applied in the above embodiment is just one example, and it goes without saying that unnecessary steps can be deleted, new steps can be added, or the processing order can be rearranged.

In addition, in the above embodiment, for example, the hardware structure of the processing unit that executes the processes of the acquisition unit 11A, derivation unit 11B, presentation unit 11C, and identification unit 11D can use the various processors listed below. As mentioned above, the various processors include a CPU, which is a general-purpose processor that executes software (programs) and functions as a processing unit, as well as dedicated electrical circuits, such as programmable logic devices (PLDs) that are processors whose circuit configuration can be changed after manufacture, such as field-programmable gate arrays (FPGAs), and application-specific integrated circuits (ASICs), which are processors with a circuit configuration designed specifically to execute specific processes.

The processing unit may be configured with one of these various processors, or may be configured with a combination of two or more processors of the same or different types (for example, a combination of multiple FPGAs, or a combination of a CPU and an FPGA). The processing unit may also be configured with a single processor.

Examples of a processing unit being configured with a single processor include, first, a form in which a single processor is configured with a combination of one or more CPUs and software, as typified by client and server computers, and this processor functions as the processing unit. Second, a form in which a processor is used to realize the functions of the entire system, including the processing unit, on a single IC (Integrated Circuit) chip, as typified by systems on chips (SoCs). In this way, the processing unit is configured as a hardware structure using one or more of the various processors listed above.

Furthermore, the hardware structure of these various processors can be, more specifically, an electrical circuit that combines circuit elements such as semiconductor elements.

10 Groundwater treatment support device 11 CPU
11A Acquisition unit 11B Derivation unit 11C Presentation unit 11D Identification unit 12 Memory 13 Storage unit 13A Groundwater treatment support program 13B Boring information database 13C Three-dimensional position information database 14 Input unit 15 Display unit 16 Medium reading and writing device 17 Recording medium 18 Communication I/F unit 50 Target area 52 Initial boring point 54 Additional boring point 60 Target area 62 Building area 64 Planned area for regulating reservoir

Claims (5)

an acquisition unit that acquires depth information indicating the depth of an impermeable layer obtained by ground surveys at multiple points in a target area and two-dimensional position information indicating the horizontal position of the corresponding points;
a derivation unit that derives three-dimensional position information indicating a three-dimensional position of the impermeable layer in the target area using the depth information and the two-dimensional position information corresponding to the acquired multiple points;
a presentation unit that presents support information regarding groundwater treatment in the target area using the derived three-dimensional position information;
Groundwater treatment support equipment equipped with The support information includes at least one of information regarding whether the groundwater can be drained and information regarding the treatment of the groundwater.
The groundwater treatment support device according to claim 1. The information regarding the treatment of the groundwater includes information indicating a drainage route of the groundwater.
The groundwater treatment support device according to claim 2. Further, an identification unit is provided that uses the three-dimensional position information to identify a ground investigation point different from the plurality of points, which contributes to improving the accuracy of the three-dimensional position information,
The presentation unit further presents the identified ground investigation point.
The groundwater treatment support device according to any one of claims 1 to 3. depth information indicating the depth of the impermeable layer obtained by ground surveys at multiple points in the target area and two-dimensional position information indicating the horizontal positions of the corresponding points are obtained;
deriving three-dimensional position information indicating a three-dimensional position of the impermeable layer in the target area using the depth information and the two-dimensional position information corresponding to the acquired multiple points;
Using the derived three-dimensional position information, support information regarding groundwater treatment in the target area is presented.
A groundwater treatment support program that allows a computer to carry out the processing.