Judgment support system and judgment support method

Abstract

To provide a judgment support system and a judgment support method for supporting the judgment of whether a pile hole has reached a supporting layer.SOLUTION: A management device 40, which supports a judgment of whether a pile has reached a supporting layer, includes a control unit connected to a contractor system 20 and a vibration measurement device 30. The control unit acquires the construction data of a pile hole from the contractor system 20, and acquires the external measurement data during the construction of the pile hole from the vibration measurement device 30. Furthermore, the control unit matches the excavation time zone in the construction data with the excavation time zone in the external measurement data, and outputs information that matches the construction data with the external measurement data to a display device.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a judgment support system and a judgment support method for supporting the judgment of whether a pile hole for installing a pile has reached a supporting layer. [Background technology]

[0002] When constructing a structure, a plurality of piles may be driven into the supporting layer, and the load of the structure may be supported by the supporting layer through the piles. For this reason, the pile holes into which the piles are inserted are made to reach the supporting layer. However, it is difficult to determine a qualitative judgment index for confirming the reaching of the supporting layer. Therefore, a method for judging the reaching of the drilling to the supporting layer has been considered (for example, see Patent Document 1). The drilling management system described in Patent Document 1 displays an output screen including a display area for displaying a depth-elapsed time graph, a depth-drilling speed graph, a depth-integrated current value graph, a depth-vibration analysis graph, a judgment index value graph for the drilling speed, and a judgment index value graph for the vibration. The control unit calculates a value obtained by dividing the short-term average, which is the first statistical value of the drilling speed, by the long-term average, which is the second statistical value of the drilling speed, as the judgment index value for the drilling speed and the vibration. Furthermore, the control unit adds the drilling depth during the drilling time period to the depth-elapsed time graph, and adds the drilling speed, vibration characteristic value, drilling speed judgment index value, and vibration judgment index value associated with the drilling depth to each graph, respectively. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-031839 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, multiple pile builders may build piles on the same site. In this case, the heavy machinery used to excavate pile holes and the method of managing construction data may differ depending on the builder. Therefore, the method of acquiring construction data may also differ accordingly. Furthermore, vibration data, etc. is often not managed by the builder. Therefore, vibration data, etc. must be acquired independently by the manager of the construction site. However, if vibration data is acquired separately from the builder's system, a mismatch may occur between the construction data and the vibration data, etc. In this case, the excavation situation cannot be accurately determined. [Means for solving the problem]

[0005] The judgment support system for solving the above problem includes a control unit connected to a contractor system and a display device, and supports the judgment of whether the pile hole reaches the supporting layer. The control unit acquires the construction data of the pile hole from the contractor system, acquires the external measurement data during the construction of the pile hole from an external measurement device, matches the excavation time zone in the construction data with the excavation time zone in the external measurement data, and outputs information that matches the construction data with the external measurement data to the display device. Effect of the Invention

[0006] According to the present invention, it is possible to assist in determining whether a pile hole has reached the supporting layer. [Brief description of the drawings]

[0007] [Figure 1] 1 is an explanatory diagram illustrating a schematic configuration of a judgment support system according to an embodiment. [Diagram 2] FIG. 2 is an explanatory diagram of a hardware configuration of the embodiment. [Diagram 3] FIG. 2 is an explanatory diagram of functions of the judgment support system according to the embodiment. [Figure 4] 5A is an explanatory diagram of a conversion information storage unit, FIG. 5B is an explanatory diagram of a construction information storage unit, and FIG. 5C is an explanatory diagram of a vibration information storage unit in the embodiment. [Diagram 5]FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 6] 5A to 5C are explanatory diagrams of data in an embodiment, where FIG. 5A is an explanatory diagram of depth data, FIG. 5B is an explanatory diagram of current data, and FIG. 5C is an explanatory diagram of vibration data before correction. [Figure 7] 5A to 5C are explanatory diagrams of data in an embodiment, where FIG. 5A is an explanatory diagram of depth data, FIG. 5B is an explanatory diagram of current data, and FIG. 5C is an explanatory diagram of vibration data after correction. [Figure 8] FIG. 2 is an explanatory diagram of a display screen in the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, a specific embodiment of the judgment support system and judgment support method of the present embodiment will be described with reference to FIGS. As shown in Fig. 1, when drilling a pile hole h0 for installing a pile of a building, an excavator 10 is used as an excavation device. The excavator 10 includes a base machine 11, a mast 14, and an auger machine 16. The base machine 11 includes a lower traveling body including a crawler 12, and an upper rotating body including an operation room 13.

[0009] The mast 14 is erected on the base machine 11. Wires for measuring depth and speed are provided inside the mast 14. An auger machine 16 is attached to the mast 14 so that it can be raised and lowered. The auger machine 16 is equipped with a drive motor housed in a box and a drilling rod 17 that is driven and rotated by the drive motor. A drilling head 18 is attached to the tip (lower end) of the drilling rod 17. The drilling head 18 has a pair (two) of swinging drilling arms with drilling blades formed at the tips thereof. The elevation and lowering of the drilling head 18 is controlled by an operator in the operation room 13.

[0010] In addition, a drilling water supply device (not shown) that supplies drilling water to the drilling head 18 is connected to the drilling machine 10. The amount of this drilling water is adjusted by the operator in the operation room 13 depending on the drilling conditions. For excavation management, a contractor system 20, a vibration measuring device 30, and a management device 40 are used. The details of these will be described later.

[0011] (Hardware configuration example) FIG. 2 shows an example of the hardware configuration of an information processing device H10 that functions as the constructor system 20, the vibration measuring device 30, the management device 40, and the like.

[0012] The information processing device H10 includes a communication device H11, an input device H12, a display device H13, a storage device H14, and a processor H 15. Note that this hardware configuration is an example, and the information processing device H10 may include other hardware.

[0013] The communication device H11 is an interface that establishes a communication path with other devices and transmits and receives data. The input device H12 is a device that accepts input from the user.

[0014] The display device H13 is a display, a touch panel, or the like that displays various information. The storage device H14 stores data and various programs for executing various functions of the constructor system 20, the vibration measuring device 30, and the management device 40. Examples of the storage device H14 include a ROM, a RAM, and a hard disk. The processor H15 controls each process in the constructor system 20, the vibration measuring device 30, and the management device 40 using the programs and data stored in the storage device H14.

[0015] (Explanation of the functions of the decision support system) As shown in FIG. 1, the contractor system 20 of the excavator 10 includes a depth meter 21, a current meter 22, and a flow meter 23.

[0016] The depth gauge 21 measures the amount of wire paid out within the mast 14 and measures the drilling depth (depth) according to the position of the drilling head 18. The ammeter 22 measures the load current of the drive motor of the auger machine 16 . The flow meter 23 measures the injection flow rate of the drilling water supplied from the drilling water supply device.

[0017] The constructor system 20 acquires various information from the depth gauge 21, the ammeter 22, and the flow meter 23. This constructor system 20 is a computer system used by an excavator. During excavation, the constructor system 20 manages the various information acquired from the depth gauge 21, the ammeter 22, and the flow meter 23 as evidence information during excavation.

[0018] Furthermore, the excavator 10 is equipped with a vibration measuring device 30 as an external measuring device separate from the contractor system 20. The vibration measuring device 30 measures vibrations (external measurement information) at the installation location. In this embodiment, the vibration measuring device 30 is installed inside the operation room 13, on the roof of the operation room 13, or on an operation lever inside the operation room 13. This vibration measuring device 30 measures vertical and horizontal vibrations.

[0019] As shown in FIG. 3, the management device 40 acquires various types of information from the contractor system 20 and the vibration measuring device 30. When acquiring information from the contractor system 20, the management device 40 is connected to the contractor system 20 via an information acquisition device 45 as various interfaces.

[0020] For example, when the constructor system 20 accumulates information acquired from the depth meter 21, ammeter 22, and flow meter 23 and displays the measurement information on the display device H13, the image capturing terminal 451 serving as the information acquiring device 45 is used to capture an image of the output screen. In this case, the image capturing terminal 451 performs character recognition on the pile number, depth, current, and water volume in the captured image. The image capturing terminal 451 then transmits the construction data, including the character-recognized pile number, depth, current, and water volume, to the management device 40.

[0021] Furthermore, when the contractor system 20 has an output port for construction data, the construction data is acquired by wired communication via an input device 452 serving as an information acquisition device 45, and transmitted to the management device 40. As the input device 452, a PLC (Programmable Logic Controller) can be used.

[0022] Furthermore, in the case where the construction data is managed by a cloud server, the construction operator system 20 acquires the construction data from the cloud server via the gateway 453 as the information acquisition device 45 and transmits the data to the management device 40 .

[0023] In addition, when the constructor system 20 is capable of wireless communication with an external device, the construction data may be acquired by wireless communication via a communication device 454 serving as an information acquisition device 45, and transmitted to the management device 40. As the wireless communication, Bluetooth (registered trademark), Wi-Fi (registered trademark), etc. may be used.

[0024] The management device 40 is a computer system used by a manager of a construction site. The management device 40 includes a control unit 41, a conversion information storage unit 42, a construction information storage unit 43, and a vibration information storage unit 44.

[0025] The control unit 41 performs various processes (processes such as an acquisition stage, a conversion stage, a matching stage, and a judgment stage). To this end, the control unit 41 functions as an acquisition unit 411, a conversion unit 412, a matching unit 413, and a judgment unit 414 by executing a hole drilling management program stored in the memory.

[0026] The acquisition unit 411 acquires various information from the constructor system 20 and the vibration measuring device 30, and executes a process of registering the acquired information in the construction information storage unit 43 and the vibration information storage unit . The conversion unit 412 converts the information acquired from the constructor system 20 into a standardized format using the information recorded in the conversion information storage unit 42 .

[0027] The matching unit 413 performs a process of matching the construction data with the vibration data. The determination unit 414 executes a process of outputting the excavation status using the matched construction data and vibration data.

[0028] As shown in Fig. 4(a), the conversion information storage unit 42 records conversion information for standardizing the construction data acquired from the contractor system 20. This conversion information is recorded when the contractor system 20 used for construction management is registered. This conversion information records a system code, a management item, and a conversion processing method.

[0029] The system code is information related to an identifier for identifying the installer system 20 . The management items are items included in the construction data acquired from the constructor system 20 (depth, current value, water volume, etc.).

[0030] The conversion processing method is information for converting the information acquired from the contractor system 20 into a format for management by the management device 40. For example, a function for converting the unit system used in the contractor system 20 into the unit system used in the management device 40 is recorded.

[0031] As shown in Fig. 4(b), the construction information storage unit 43 records construction management information including construction data acquired from the constructor system 20. This construction management information is recorded when acquired from the constructor system 20. In this construction management information, a constructor folder, an excavator folder, a pile folder, and construction data are recorded.

[0032] The contractor folder is a storage folder set for each contractor. The excavator folder is provided in the contractor folder, and is a storage folder set for each excavator identification information (unit number). The pile folder is a storage folder provided in the excavator folder and set for each pile number. The pile folder stores construction data acquired from the constructor system 20 when a pile hole is excavated.

[0033] The construction data includes measurement history data on the control items and the control item values ​​for each construction time. The construction time is a date and time, and is recorded periodically (for example, every 1 or 2 seconds). In this embodiment, the depth, current value, and water volume are used as the control items.

[0034] 4(c), the vibration information storage unit 44 records vibration management information including vibration data as external measurement data acquired from the vibration measuring device 30. This vibration management information is recorded when it is acquired from the vibration measuring device 30. In this vibration management information, a contractor folder, an excavator folder, and vibration data are recorded.

[0035] The contractor folder is a storage folder set for each contractor. The excavator folder is a storage folder provided in the contractor folder and set for each identification information (unit number) of an excavator corresponding to the vibration measuring device 30. The excavator folder stores vibration data acquired from the vibration measuring device 30 when a pile hole is excavated. The vibration data includes vibration history data on vibration values ​​for each construction time. The construction time is a date and time, and is recorded periodically (for example, every second).

[0036] (Management process) The management process will be described with reference to FIGS.

[0037] First, the control unit 41 of the management device 40 executes a process of acquiring construction data (step S11). Specifically, the acquisition unit 411 of the control unit 41 acquires the construction data from the constructor system 20 via the information acquisition device 45. In this case, the acquisition unit 411 acquires the construction data for each excavation time together with the identification information (machine number) of the excavator and the identification information (pile number) of the pile.

[0038] Next, the control unit 41 of the management device 40 executes a conversion process of the construction data (step S12). Specifically, the conversion unit 412 of the control unit 41 uses the conversion information storage unit 42 to convert item values ​​of management items included in the acquired construction data.

[0039] Next, the control unit 41 of the management device 40 executes a registration process of the construction data (step S13). Specifically, the conversion unit 412 of the control unit 41 records the converted construction data in the construction information storage unit 43. In this case, a contractor folder corresponding to the contractor system 20 from which the information was acquired is identified, and the construction data (item values ​​for each management item) is recorded in a pile folder in the excavator folder corresponding to the identification information (machine number) of the excavator.

[0040] Furthermore, the control unit 41 of the management device 40 executes a vibration data acquisition process (step S21). Specifically, the acquisition unit 411 of the control unit 41 acquires the vibration data from the vibration measuring device 30. In this case, the acquisition unit 411 acquires the vibration data for each excavation time together with the identification information (machine number) of the excavator on which the vibration measuring device 30 is installed. The identification information (machine number) of the excavator may be specified from the identification information of the vibration measuring device 30 that acquired the vibration data, using a management table of the excavator on which the vibration measuring device 30 is installed.

[0041] Next, the control unit 41 of the management device 40 executes a vibration data registration process (step S22). Specifically, the acquisition unit 411 of the control unit 41 records the vibration data in the vibration information storage unit 44. In this case, the vibration data is recorded in an excavator folder corresponding to the identification information (machine number) of the excavator on which the vibration measuring device 30 that acquired the information is installed.

[0042] Then, the control unit 41 of the management device 40 executes a matching process (step S31). Specifically, the matching unit 413 of the control unit 41 acquires the construction data and vibration data stored in the excavator folder of the same excavator identification information in the construction information storage unit 43 and the vibration information storage unit 44. Then, the matching unit 413 identifies an excavation time period (first time period) in which a change in depth or a current value equal to or greater than a first reference value occurs in the construction data. Also, the matching unit 413 identifies an excavation time period (second time period) in which a vibration equal to or greater than a second reference value continues for a predetermined time period or longer in the vibration data. Then, the matching unit 413 performs matching between the first time period and the second time period.

[0043] Next, the control unit 41 of the management device 40 executes a process of determining whether or not there is an inconsistency (step S32). Specifically, the matching unit 413 of the control unit 41 checks whether or not there is a discrepancy between the first time period and the second time period. For example, if there is no vibration of a reference value or more during a time period during excavation when a change in depth or a current value occurs, or if there is no change in depth or a current value during a time period when there is a vibration of a reference value or more, it is determined that there is an inconsistency.

[0044] When it is determined that there is an inconsistency ("YES" in step S32), the control unit 41 of the management device 40 executes a correction process (step S33). Specifically, the determination unit 414 of the control unit 41 corrects the first time slot so that the nearest first time slot and the second time slot coincide with each other. In this case, for example, the correction is performed by calculating the difference time between the time when the current value suddenly decreases and the time when the vibration suddenly decreases. Here, when the first time slot is earlier than the second time slot, the second time slot is shifted on the time axis by deleting a part of the time slot in which the vibration is small in the time slot immediately before the second time slot. On the other hand, when the second time slot is earlier than the first time slot, the second time slot is shifted on the time axis by inserting a blank time slot in the time slot immediately before the first time slot and the time slot immediately before the second time slot. Furthermore, after this shift, it is confirmed whether the inconsistency between the first time slot and the second time slot is resolved in other subsequent time slots as well. In the case where there is also an inconsistency between the first and second time periods in other time periods, the second time period is shifted to match the first time period by deleting or inserting data on the time axis of the vibration data immediately before the time period where the inconsistency occurs. If this resolves the inconsistency, the correction process is terminated. Note that if the inconsistency with the first time period cannot be resolved even after shifting the second time period, an alarm is output to the display device H13.

[0045] FIG. 6(a) shows a depth graph G10, FIG. 6(b) shows a current graph G20, and FIG. 6(c) shows a vibration graph G30 before correction. The horizontal axis is the time when each data was acquired. As shown by the dashed arrow, the time when the current value suddenly decreases and the time when the vibration suddenly decreases are not aligned, and the first time period T1 of the current graph G20 and the second time period T2 of the vibration graph G30 do not match.

[0046] Fig. 7(a) shows a depth graph G10, Fig. 7(b) shows a current graph G20, and Fig. 7(c) shows a corrected vibration graph G40. In this case, by shifting the vibration graph so that the time axis of the vibration graph G40 shown in Fig. 6(c) coincides with the time indicated by the dashed arrow, the first time zone T1 of the current graph G20 and the second time zone T2 of the vibration graph G40 are aligned.

[0047] On the other hand, if it is determined that there is no inconsistency ("NO" in step S32), the control unit 41 of the management device 40 skips the correction process (step S33). Next, the control unit 41 of the management device 40 executes a display process (step S34). Specifically, the determination unit 414 of the control unit 41 outputs a management screen including the construction data and the corrected vibration data to the display device H13.

[0048] As shown in Fig. 8, this management screen 500 includes a contractor column 501, a pile number column 502, a depth column 511, an excavation time column 512, a current column 513, an integral current column 514, a vibration column 515, and a water volume column (not shown). In this vibration column 515, a spectrogram SP0 is displayed, in which the horizontal axis indicates vibration frequency and the vertical axis indicates a frequency distribution of depth. This spectrogram SP0 is corrected (step S33), and a corrected spectrogram SP1 is displayed. In this case, the manager checks the depth, current value, water volume, vibration status, etc. to determine whether the bearing layer has been reached.

[0049] (action) The construction data acquired from the construction company system 20 and the vibration data acquired from the vibration measuring device 30 are corrected according to the signal strength, so that any inconsistency between the two is eliminated.

[0050] According to this embodiment, the following effects can be obtained. (1) In this embodiment, the control unit 41 of the management device 40 executes an acquisition process of construction data (step S11) and a registration process of the construction data (step S13). This allows the construction data managed by the contractor to be used in the contractor system 20.

[0051] (2) In this embodiment, the conversion information storage unit 42 records conversion information for standardizing the construction data acquired from the contractor system 20. Then, the control unit 41 of the management device 40 executes a conversion process of the construction data (step S12). This allows data in different formats depending on the contractor system 20 to be centrally managed by the management device 40.

[0052] (3) In this embodiment, the control unit 41 of the management device 40 executes a vibration data acquisition process (step S21) and a vibration data registration process (step S22). This makes it possible to determine whether the support layer has been reached using data that is not managed by the contractor system 20.

[0053] (4) In this embodiment, the control unit 41 of the management device 40 executes a matching process (step S31). If it is determined that there is an inconsistency (if "YES" in step S32), the control unit 41 of the management device 40 executes a correction process (step S33). This allows the information acquired from the contractor system 20 and the management device 40 to be consistent.

[0054] (5) In this embodiment, the control unit 41 of the management device 40 executes a display process (step S34). This makes it possible to determine whether the support layer has been reached using information acquired from the contractor system 20 and the management device 40 and aligned on the time axis.

[0055] This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction. In the above embodiment, the excavator 10 is equipped with a vibration measuring device 30 as an external measuring device. The external measuring device is not limited to the vibration measuring device 30 as long as it is a device attached externally to the contractor system 20. For example, a recording device that captures sounds (external measurement data) generated during excavation may be used. Also, multiple external measuring devices may be used. In the above embodiment, the control unit 41 of the management device 40 executes a process of acquiring construction data (step S11). Here, the depth, current value, and water volume are used as management items, but the management items are not limited to these. Some of these or other management items may be included.

[0056] In the above embodiment, the control unit 41 of the management device 40 executes a vibration data acquisition process (step S21). Specifically, the acquisition unit 411 of the control unit 41 acquires the vibration data from the vibration measuring device 30. If the constructor system 20 manages the vibration data, the vibration data may be acquired from the constructor system 20. In addition, the sound generated during excavation may be recorded by a recording device (external measuring device) to acquire the time change of this sound (e.g., volume, frequency).

[0057] In the above embodiment, the construction information storage unit 43 records a contractor folder, an excavator folder, a pile folder, and construction data. The vibration information storage unit 44 records a contractor folder, an excavator folder, and vibration data. The method of saving the construction data and vibration data is not limited to this. For example, the construction data and vibration data may be managed together for each excavator. Also, instead of identifying by folder, the data file name may include the excavator identification information and the pile number. In this case, the construction data and vibration data are matched by the data file name.

[0058] In the above embodiment, the control unit 41 of the management device 40 executes a matching process (step S31). Here, matching is performed using construction data (current value) and vibration data. The matching targets are not limited to construction data (current value) and vibration data. For example, matching may be performed between the construction data and audio recording data (external measurement data) of sounds generated during excavation obtained from an external measurement device. In this case, matching may be performed between multiple types of external measurement data (vibration data, audio recording data, etc.) obtained from the external measurement device and the construction data. In the above embodiment, the control unit 41 of the management device 40 executes a matching process (step S31). Specifically, the matching unit 413 of the control unit 41 checks whether there is a discrepancy between the first time period and the second time period. The matching method is not limited to this. For example, matching with the vibration data may be performed using a third time period in which the depth has changed and become deeper.

[0059] In the above embodiment, the control unit 41 of the management device 40 executes a display process (step S34). In addition to this, the technology described in Patent Document 1 may be applied to the management device 40. In this case, the management device 40 determines whether the target user has reached the support layer based on the determination index value, and displays the determination result.

[0060] In the above embodiment, the control unit 41 of the management device 40 executes a correction process (step S33). Here, the second time zone is shifted to match the first time zone by deleting or inserting on the time axis of the vibration data. Alternatively, the first time zone may be shifted on the time axis of the construction data by deleting part of a time zone in which the current value is small or by inserting a blank time zone. In this case, the time axis is similarly corrected for other management items of the construction data of the same pile.

[0061] In the above embodiment, the control unit 41 of the management device 40 executes a correction process (step S33). In this case, for example, the difference time between the time when the current value suddenly decreases and the time when the vibration suddenly decreases is calculated and correction is performed. It is sufficient to perform correction so that the construction data and the vibration data match over the entire time period. For example, when the period when excavation is not performed is longer than the excavation period, correction may be performed so that the time period when the current value is small matches the time period when the vibration is small.

[0062] Next, the technical ideas that can be understood from the above embodiment and other examples will be described below. 2. The judgment support system according to claim 1, wherein: (a) the construction data includes excavation depth data. (b) The judgment support system according to claim 1 or (a) above, characterized in that the construction data includes data on a current value of an excavator.

[0063] (c) The judgment support system described in (b), characterized in that a time period during which the current value is equal to or greater than a first reference value is matched with a time period during which the vibration intensity of the vibration data is equal to or greater than a second reference value. (d) The judgment support system described in any one of (a) to (c) above, characterized in that the construction data of the pile hole is obtained by character recognition of the screen displayed on the contractor system.

[0064] (e) The judgment support system according to any one of (a) to (d) above, characterized in that construction data of the pile hole is acquired from an output port of the constructor system by wired communication or wireless communication. (f) The judgment support system according to any one of (a) to (e) above, characterized in that construction data of the pile hole is acquired from a cloud server of the contractor system via a gateway. [Explanation of symbols]

[0065] h0...pile hole, 10...drilling machine, 20...constructor system, 21...depth gauge, 22...flow meter, 23...flow meter, 30...vibration measuring device, 40...management device, 41...control unit.

Claims

1. A judgment support system comprising a control unit connected to a construction system, an external measuring device, and a display device, and supporting the judgment of whether a pile hole has reached a supporting layer, The control unit: Acquire construction data of the pile hole from the constructor system; Acquire external measurement data during construction of the pile hole from the external measurement device, A judgment support system characterized by matching the excavation time period in the construction data with the excavation time period in the external measurement data, and outputting information that aligns the construction data with the external measurement data to the display device.

2. 2. The judgment support system according to claim 1, wherein vibration data is acquired as the external measurement data from the external measurement device.

3. A method for supporting the determination of whether a pile hole has reached a supporting layer by using a determination support system having a control unit connected to a construction system, an external measurement device, and a display device, The control unit: Acquire construction data of the pile hole from the constructor system; Acquire external measurement data during construction of the pile hole from the external measurement device, A judgment support method characterized by matching the excavation time period in the construction data with the excavation time period in the external measurement data, and outputting information that aligns the construction data with the external measurement data to the display device.

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