Construction assist device and construction assist method

Abstract

To provide a construction assist device and a construction assist method to assist the construction of pile holes.SOLUTION: A management device 30 assists the judgement as to whether a pile has arrived at a bearing layer, comprising a control section that is connected to a display unit and a measurement unit 20. The management device 30: identifies stratum information corresponding to the depths up to a bearing layer in the ground at a job site; obtains measurement information corresponding to the bored depths up to the bearing layer in the ground; uses the measurement information to organize stratum-specific measurement information corresponding to the depths of strata at a bore hole location according to the stratum information; and, upon getting new measurement information from the measurement unit 20, uses the stratum-specific measurement information to output to the display unit the information regarding the arrival at the bearing layer based on the new measurement information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a construction support device and a construction support method for supporting construction of pile holes for installing piles. [Background technology]

[0002] When constructing a structure, multiple piles may be driven into the supporting layer, allowing the load of the structure to be supported by the piles. Therefore, pile holes into which the piles are inserted are extended to the supporting layer. However, it is difficult to establish a qualitative judgment index for confirming whether the piles have reached the supporting layer. Therefore, a ground firmness estimation system capable of efficiently evaluating the firmness of the ground has been studied (see, for example, Patent Document 1). The ground firmness estimation system described in Patent Document 1 acquires values ​​measured by a drilling depth measuring device, a flow rate measuring device, a current measuring device, and a vibration measuring device. Then, a multivariate analysis is performed using the acquired measurement values ​​and firmness index value as explanatory variables and a target variable. When measurement values ​​are acquired during the excavation of the target pile hole, the firmness index value of the ground where the target pile hole is excavated is estimated using these measurement values ​​and a multiple regression equation.

[0003] Furthermore, an evaluation support device for supporting the evaluation of the ground at a proposed building construction site is also under consideration (see, for example, Patent Document 2). The evaluation support device described in Patent Document 2 acquires a three-dimensional geological layer estimation model generated based on geological layer information from a modeling device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-80737 [Patent Document 2] Japanese Patent Application Publication No. 2023-144684 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the ground at a construction site is composed of multiple layers, and the measured values ​​during drilling of the pile hole are affected by the layer structure, making it difficult to accurately determine the excavation status. [Means for solving the problem]

[0006] The construction support device for solving the above problems comprises a control unit connected to a measurement device and a display device, and supports management of the excavation status of pile holes. The control unit specifies stratum information according to the depth of the ground to the bearing stratum at the construction site, specifies measurement information according to the depth to which the ground has been excavated to the bearing stratum, specifies stratum-corresponding measurement information according to the depth range of the stratum at the pile hole position in the stratum information using the measurement information, and when new measurement information is acquired from the measurement device, uses the stratum-corresponding measurement information to output information regarding reaching the bearing stratum in the new measurement information to the display device. [Effects of the Invention]

[0007] According to the present disclosure, construction of pile holes can be assisted. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an explanatory diagram of a schematic configuration of a construction support system according to an embodiment. [Figure 2] FIG. 2 is an explanatory diagram of a hardware configuration of the embodiment. [Figure 3] FIG. 2 is an explanatory diagram of functions of a management device of the construction support system according to the embodiment. [Figure 4] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 5] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 6] FIG. 2 is an explanatory diagram of a processing procedure according to an embodiment. [Figure 7] FIG. 2 is an explanatory diagram of a geological formation estimation model according to the embodiment. [Figure 8] FIG. 2 is an explanatory diagram of the relationship between a geological layer estimation model and a pile hole model in the embodiment. [Figure 9]FIG. 2 is an explanatory diagram of the association between a geological layer and excavation management information in the embodiment. [Figure 10] FIG. 2 is an explanatory diagram of a display screen in the embodiment. [Figure 11] FIG. 10 is an explanatory diagram of a display screen in another example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a specific embodiment of a construction support device and a construction support method will be described with reference to FIGS. As shown in FIG. 1, the construction support system A1 includes a ground estimation system C1, a construction management system C2, a measuring device 20, and a management device 30 (construction support device), which are connected via a network.

[0010] When drilling pile holes h0 for installing piles 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 crawlers 12, and an upper rotating body 13 including an operation room 13a.

[0011] The mast 14 is erected on the base machine 11. A wire for measuring depth is 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. The raising and lowering of the drilling head 18 is controlled by an operator in the operation room 13a.

[0012] 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 drilling water is adjusted by the operator in the operation room 13a depending on the drilling conditions. The excavation management uses a ground estimation system C1, a construction management system C2, a measuring device 20, and a management device 30. These will be described in detail later.

[0013] (Example of hardware configuration) FIG. 2 shows an example of the hardware configuration of an information processing device H10 that functions as a ground estimation system C1, a construction management system C2, a measuring device 20, and a management device 30.

[0014] 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 H15. Note that this hardware configuration is an example, and the information processing device H10 may include other hardware.

[0015] 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.

[0016] 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 ground estimation system C1, the construction management system C2, the measuring device 20, and the management device 30. Examples of the storage device H14 include a ROM, a RAM, a hard disk, etc.

[0017] The processor H15 controls each process in the ground estimation system C1, the construction management system C2, the measuring device 20, and the management device 30 using the programs and data stored in the storage device H14.

[0018] (Configuration of each functional part) Next, each functional unit that realizes the construction support method will be described. In this embodiment, the management device 30 realizes the construction support method using various information acquired from the ground estimation system C1, the construction management system C2, and the measurement device 20.

[0019] (Ground Estimation System C1) The ground estimation system C1 shown in Fig. 1 is a computer system that generates geological layer information that estimates the geological layers that make up the ground. In this embodiment, a geological layer estimation model and a borehole model that represent the geological layers as a three-dimensional model are used as the geological layer information. This ground estimation system C1 uses three-dimensional CAD (computer-aided design) technology to perform modeling processing (three-dimensional CAD processing) in which each element related to the geological layers that make up the ground is represented as a three-dimensional model (object) and placed in a three-dimensional virtual space. In this modeling, a cylindrical 3D model (a borehole model) is generated for each borehole position coordinate. The borehole model is a 3D model that represents the geological layer at the borehole position as a column in the depth direction.

[0020] Furthermore, the ground estimation system C1 arranges the strata using the minimum depth of each stratum according to the boring results with respect to the boring position coordinates. This ground estimation system C1 estimates the layer boundary surface so as to connect common layers in the surrounding cylindrical three-dimensional models. In this case, the layer surface is smoothed by an approximation method. Then, the ground estimation system C1 generates a three-dimensional model (layer estimation model) in which the estimated layer boundary surfaces are set.

[0021] (Construction Management System C2) The construction management system C2 shown in Fig. 1 is a computer system that supports construction progress management. This construction management system C2 includes a construction information storage unit.

[0022] The construction information storage unit stores 3D model information created by 3D CAD using BIM (Building Information Modeling) technology, etc. This 3D model information is recorded when piles are designed using 3D CAD. The 3D model information includes information on the project code, pile number, name, element model, placement, attributes, process code, and progress code.

[0023] The project code is an identifier for identifying each project (construction site). The pile number is an identifier for identifying the element (pile hole) for constructing the pile used in this project. Name is the name of this element (pile hole).

[0024] The element model is a three-dimensional model (object) of this element (pile hole). The placement is information about the coordinates at which each element model is placed. The attribute is attribute information of this element (specifications, dimensions, weight, material, etc.).

[0025] The process code is an identifier that specifies the order in which this element (hole) is excavated. The progress code is an identifier indicating whether the pile hole is before construction (scheduled date), during construction (implemented date), or completed construction (completion date).

[0026] (Measuring device 20 of excavator 10) As shown in FIG. 1, the measurement device 20 of the excavator 10 includes measuring instruments such as a depth meter 21, a current meter 22, a flow meter 23, a vibration meter 24, and the like.

[0027] The depth meter 21 measures the amount of wire fed out inside the mast 14 and measures the excavation depth according to the position of the excavation head 18. The excavation speed can be calculated from this excavation depth and the excavation time required to excavate this depth.

[0028] 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. The vibration meter 24 measures vibrations at the installation location. In this embodiment, the vibration meter 24 is installed inside the operation room 13a, on the roof of the operation room 13a, on the operation lever inside the operation room 13a, and on the mast 14. The vibration meter 24 measures vertical and horizontal vibrations.

[0029] The measurement device 20 then acquires various measurement values ​​from each measuring instrument (depth meter 21, ammeter 22, flow meter 23, and vibration meter 24). In this embodiment, the measurement values ​​acquired during excavation are used as measurement information. During excavation, the measurement device 20 manages the measurement information acquired from each measuring instrument as evidence information during excavation.

[0030] (Management device 30) The management device 30 shown in FIG. 1 is a computer system used by a construction site manager to manage the excavation status.

[0031] As shown in FIG. 3, the management device 30 includes a control unit 31, a ground information storage unit 32, an excavation information storage unit 33, and an analysis information storage unit . The control unit 31 performs various processes (processes such as an acquisition stage, an analysis stage, a display stage, and a determination stage) and functions as an acquisition unit 311, an analysis unit 312, a display unit 313, and a determination unit 314 by executing an excavation management program stored in the memory.

[0032] The acquisition unit 311 acquires various information from the ground estimation system C1, the construction management system C2, and the measuring device 20. Furthermore, the acquisition unit 311 executes a process of registering the acquired information in each storage unit (32, 33).

[0033] The analysis unit 312 uses the measurement information and the geological formation information to perform processing to generate an analytical model that predicts arrival at the bearing layer. The display unit 313 executes a process for displaying the construction status of the construction site. The determination unit 314 uses the newly acquired measurement information to execute a process of determining the excavation status (reaching of the bearing layer).

[0034] The ground information storage unit 32 stores layer model information of the layers that make up the ground. This layer model information is stored when layer information such as a layer estimation model is acquired from the ground estimation system C1. The layer model information includes 3D model information (object ID, element model, placement information, attribute information) of each layer.

[0035] The object ID is information about an identifier for identifying the three-dimensional shape (three-dimensional model) that constitutes the stratum. The element model is information relating to a three-dimensional object (three-dimensional model) that constitutes a stratum. In this embodiment, a stratum estimation model and a boring model are used as the element model.

[0036] The placement information includes information about the placement of the three-dimensional model (coordinates in the three-dimensional virtual space). The attribute information includes the contents of each element model. The attribute information of the stratum estimation model and the boring model includes a soil type classification that indicates the soil type of the stratum. The soil type classification is a classification of soil type. Here, for example, gravel (coarse gravel, sandy gravel, etc.), gravelly soil (silty gravel, etc.), sand (gravel-mixed sand, etc.), sandy soil (silty sand, etc.), silt (sandy silt, etc.), clayey soil (sandy clay, etc.), etc. are recorded. The supporting layer of the pile is identified by this soil type classification.

[0037] The excavation information storage unit 33 records excavation management information including measurement information acquired from the measuring device 20. This excavation management information is recorded when it is acquired from the measuring device 20. This excavation management information records pile number, pile hole position, measurement information, and bearing layer depth.

[0038] The stake number is an identifier for identifying each stake. The pile hole position is a coordinate for specifying the position of the pile at the construction site. The pile number and pile hole position are registered based on the pile number and arrangement recorded in the construction management system C2. The measurement information includes measurement history data on management items and measurement 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 management items used are excavation time, current value, water volume, and vibration. The bearing layer depth is the depth at which the bearing layer is determined to have been reached in this pile hole h0.

[0039] The analysis information storage unit 34 records analysis result information that associates the stratum with the measurement information through an evaluation process (described later). This analysis result information is recorded when an analysis process is performed. This analysis result information records an analysis model (stratum-corresponding measurement information). This analysis model is information for predicting the stratum and supporting layer from the measurement information.

[0040] (Administrative processing) The management process will be explained using Figures 4 to 10. Here, it is assumed that some pile holes h0 have been excavated at a construction site. This management process includes an evaluation process and an excavation support process.

[0041] (Evaluation process) First, the evaluation process will be explained using Figure 4. Here, an analytical model is created that predicts the soil classification and the arrival at the bearing layer from the measurement information.

[0042] First, the control unit 31 of the management device 30 executes a process for acquiring stratum information (step S11). Specifically, the ground estimation system C1 generates a 3D model (stratum estimation model) that estimates the stratum of the ground at the construction site based on the results of boring at the construction site. Then, the acquisition unit 311 of the control unit 31 acquires the stratum estimation model and the borehole model from the ground estimation system C1. Next, the acquisition unit 311 records the acquired stratum estimation model and the borehole model in the ground information storage unit 32. This stratum estimation model is used to identify the stratum based on the depth of the ground to the bearing layer at the construction site.

[0043] 7, in the three-dimensional model 500 (stratum estimation model), a plurality of stratum models 501 are arranged for each soil type classification with respect to the ground surface G1. Each stratum model 501 is estimated from the stratum included in the boring model 502.

[0044] Next, the control unit 31 of the management device 30 executes a process for identifying excavation management information (step S12). Specifically, the acquisition unit 311 of the control unit 31 identifies the excavation management information in which the bearing layer depth is recorded in the excavation information storage unit 33. This identifies measurement information corresponding to the depth to which the ground has been excavated down to the bearing layer.

[0045] Next, the control unit 31 of the management device 30 repeats the following process for each of the stake holes h0. Here, the control unit 31 of the management device 30 executes a process of identifying the stratum at the pile hole position (step S13). Specifically, the analysis unit 312 of the control unit 31 identifies the arrangement of piles at the construction site using the pile hole positions in the excavation management information. Next, the analysis unit 312 identifies the stratum at the pile hole position in the stratum estimation model recorded in the ground information storage unit 32.

[0046] As shown in FIG. 8, in the geological layer model 501, a geological layer model 501 that overlaps with a pile hole model 503 that indicates the arrangement of pile holes is identified. Next, the control unit 31 of the management device 30 executes a process of associating the stratum with the measurement information (step S14). Specifically, the analysis unit 312 of the control unit 31 identifies the depth range of each stratum from the upper depth (lower limit depth of the upper stratum) and lower depth (lower limit depth) of each stratum at the identified pile hole position. Then, the analysis unit 312 identifies the depth range of each stratum and each measurement value (excavation time, current value, water volume, vibration) at the time of reaching the bearing stratum in the excavation management information. Then, the analysis unit 312 records the soil classification of each stratum and each measurement value associated with the time of reaching the bearing stratum in memory as training information.

[0047] As shown in FIG. 9, measurement information 511 and a stratum 512 at the same depth are associated with each other to generate training information. Then, the control unit 31 of the management device 30 repeatedly executes the process until it is completed for all the pile holes h0 that have been constructed.

[0048] Next, the control unit 31 of the management device 30 executes an analysis process (step S15). Specifically, the analysis unit 312 of the control unit 31 uses the teacher information recorded in the memory to generate an analysis model that predicts the soil classification and the arrival at the bearing layer from each measurement value. Multivariate analysis or deep learning can be used to generate this analysis model. As a result, the measurement information is used to identify the stratum-corresponding measurement information corresponding to the depth range of the pilehole position in the stratum information. Then, the analysis unit 312 records the generated analysis model in the analysis information storage unit 34.

[0049] (Display processing) Next, the display process will be described with reference to Fig. 5. This process is carried out when the manager checks the excavation status.

[0050] Here, the control unit 31 of the management device 30 executes a process of acquiring stratum information (step S21). Specifically, the display unit 313 of the control unit 31 acquires, from the ground information storage unit 32, a stratum estimation model that estimates the stratum of the ground at the construction site.

[0051] Next, the control unit 31 of the management device 30 executes a process for acquiring excavation management information (step S22). Specifically, the display unit 313 of the control unit 31 identifies the pile number for which "completed" is recorded as the progress code in the construction management system C2, and acquires the excavation management information for this pile number from the excavation information storage unit 33.

[0052] Next, the control unit 31 of the management device 30 executes a display process of the pile hole position (step S23). Specifically, the display unit 313 of the control unit 31 specifies the arrangement of piles in a three-dimensional space using the pile hole position in the excavation management information. Next, the display unit 313 specifies the bearing layer depth in the excavation management information. Then, the display unit 313 arranges the stratum model in the three-dimensional space, generates a display screen in which the pile hole model is arranged at the pile hole position, and outputs it to the display device H13. Furthermore, the display unit 313 displays a marker indicating the bearing layer at the position of the bearing layer depth in the pile hole model.

[0053] As shown in Fig. 10, a stratum model 501 indicating the bearing layer is displayed on a display screen 550. Furthermore, a marker 551 indicating the bearing layer reach position is displayed on a pile hole model 503. The pile hole model 503 displayed with a dashed line indicates an unconstructed pile hole. The marker 551 indicating the bearing layer depth position is an example of measurement information. Furthermore, although only the stratum model 501 indicating the bearing layer is displayed on the display screen 550, the stratum model 501 indicating the upper stratum may be displayed so as to be distinguishable.

[0054] (Drilling support processing) Next, the excavation support process will be described with reference to Fig. 6. This process is carried out when excavating a pile hole.

[0055] Here, the control unit 31 of the management device 30 executes a measurement information acquisition process (step S31). Specifically, the determination unit 314 of the control unit 31 acquires new measurement information from the measuring device 20 and records it in the excavation information storage unit 33.

[0056] Next, the control unit 31 of the management device 30 executes a process for identifying a stratum (step S32). Specifically, the determination unit 314 of the control unit 31 uses a stratum estimation model recorded in the ground information storage unit 32 to identify a stratum corresponding to the excavation depth of the measurement information.

[0057] Next, the control unit 31 of the management device 30 executes a process of determining whether the bearing stratum has been reached (step S33). Specifically, the determination unit 314 of the control unit 31 determines the bearing stratum according to the identified stratum. Furthermore, the determination unit 314 inputs the measurement information of this pile hole h0 recorded in the excavation information storage unit 33 into the analysis model recorded in the analysis information storage unit 34 to determine whether the bearing stratum has been reached. When the determination unit 314 determines that the bearing stratum has been reached, it outputs the determination result to the display device H13. Then, when the manager confirms that the bearing stratum has been reached, the construction management system C2 registers "construction completed" as a progress code in association with the pile number.

[0058] (Action of this embodiment) The measurement information acquired from the measuring device 20 varies depending on the stratum that constitutes the ground at the construction site, so that the reaching of the bearing stratum is determined from the measurement information according to the stratum.

[0059] (Effects of this embodiment) (1) In this embodiment, the control unit 31 of the management device 30 executes a process of acquiring stratum information (step S11), a process of specifying excavation management information (step S12), and a process of specifying the stratum at the pile hole position (step S13). As a result, the stratum of the ground where the pile hole h0 is excavated can be specified.

[0060] (2) In this embodiment, the control unit 31 of the management device 30 executes a process of associating the geological layer with the measurement information (step S14), thereby making it possible to identify the geological layer at the depth at which the measurement information was acquired.

[0061] (3) In this embodiment, the control unit 31 of the management device 30 executes an analysis process (step S15). Since the measurement information during excavation changes depending on the stratum up to the bearing layer, an analysis model that predicts the bearing layer can be generated from the excavation information including the upper stratum.

[0062] (4) In this embodiment, the control unit 31 of the management device 30 executes the process of acquiring stratum information (step S21), the process of acquiring excavation management information (step S22), and the process of displaying the pile hole position (step S23). This allows the user to check the stratum of the ground at the construction site and the construction status of the pile hole h0 in three-dimensional space.

[0063] (5) In this embodiment, the control unit 31 of the management device 30 executes a process of acquiring measurement information (step S31), a process of identifying the stratum (step S32), and a process of determining whether the bearing layer has been reached (step S33). This allows the control unit 31 to determine whether the bearing layer has been reached based on the measurement information acquired from the measurement device 20.

[0064] This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility. In the above embodiment, the measurement device 20 of the excavator 10 includes measuring instruments such as a depth meter 21, an ammeter 22, a flow meter 23, and a vibration meter 24. Measurement values ​​of depth, current, flow rate, and vibration are acquired as measurement information. The measurement information is not limited to these. Some of these or other measurement values ​​may also be used. For example, an acoustic spectrum may be obtained using a recording device that captures sounds generated during excavation.

[0065] In the above embodiment, the control unit 31 of the management device 30 executes the evaluation process. In this case, the analysis model is generated using the stratum information of the pile hole positions that have already been drilled at the construction site and the excavation management information. Alternatively, the analysis model may be generated using the stratum information of the pile hole positions at other construction sites and the excavation management information.

[0066] In the above embodiment, the ground estimation system C1, the construction management system C2, and the management device 30 are used, but the hardware configuration is not limited to these. For example, they may be constructed as an integrated computer system.

[0067] In the above embodiment, the control unit 31 of the management device 30 executes a display process of the stakehole position (step S23). In this case, the display unit 313 displays a marker indicating the bearing layer at the position of the bearing layer depth in the stakehole model. The display form is not limited to the marker indicating the bearing layer. For example, measurement information may be displayed on the stakehole model.

[0068] As shown in FIG. 11, a stratum model 501 showing the supporting layer is displayed on the display screen 560. Furthermore, in the pile hole model 503, mapping may be performed to attach a vibration spectrum as a texture 561. Note that the texture is not limited to the vibration spectrum, and a graph of each measurement value may be mapped. Note that the texture 561 is an example of measurement information. Furthermore, although only the stratum model 501 showing the supporting layer is displayed on the display screen 560, the stratum model 501 showing the upper stratum may also be displayed so as to be distinguishable.

[0069] In the above embodiment, measurement information (measured values ​​of excavation time, current, flow rate, and vibration) is used as input information to generate an analytical model that predicts soil classification and arrival at the bearing layer. The input information is not limited to this. An analytical model may be generated using part of the measurement information or information other than the measurement information as input information. In the above embodiment, the control unit 31 of the management device 30 executes a process for determining whether the bearing layer has been reached (step S33). Here, the management device 30 may determine whether the desired stratum has been reached, instead of determining whether the bearing layer has been reached.

[0070] Next, the technical ideas that can be understood from the above-described embodiment and other examples will be described below. (a) The construction support device according to claim 1, characterized in that the measurement information includes excavation depth data.

[0071] (b) The construction support device according to claim 1 or (a) above, characterized in that the measurement information includes data on a current value of an excavator. (c) The construction support device according to claim 1 or (a) above, characterized in that the measurement information includes data on the amount of water supplied to the excavator.

[0072] (d) The construction support device according to any one of (a) to (c) above, characterized in that the measurement information includes data relating to vibrations of an excavator. (e) The construction support device according to any one of (a) to (d) above, characterized in that the stratum-specific excavation information is generated using measurement information of the pile holes that have already been constructed at the construction site.

[0073] (f) The construction support device according to any one of (a) to (e) above, characterized in that the measurement information is mapped onto the pile hole model as a texture. [Explanation of symbols]

[0074] A1...construction support system, C1...ground estimation system, C2...construction management system, h0...pile hole, 10...drilling machine, 20...measuring device, 21...depth meter, 22...flow meter, 23...flow meter, 24...vibration meter, 30...management device, 31...control unit.

Claims

1. A construction support device comprising a control unit connected to a measuring device and a display device, and supporting management of the excavation status of a pile hole, The control unit Identify the geological layer information according to the depth of the ground to the supporting layer at the construction site, Identifying measurement information according to the depth to which the ground has been excavated down to the bearing layer; Using the measurement information, stratum-corresponding measurement information corresponding to the depth range of the stratum at the pile hole position in the stratum information is identified; A construction support device characterized in that, when new measurement information is obtained from the measuring device, information regarding reaching the supporting layer in the new measurement information is output to the display device using the stratum-corresponding measurement information.

2. The control unit Displaying a stratum model of the ground at the construction site on the display device; 2. The construction support device according to claim 1, wherein the measurement information during the excavation of the pile hole is displayed in association with the pile hole model displayed at the pile hole position.

3. A method for supporting management of a pile hole excavation status using a construction support device having a control unit connected to a measurement device and a display device, The control unit Identify the geological layer information according to the depth of the ground to the supporting layer at the construction site, Identifying measurement information according to the depth to which the ground has been excavated down to the bearing layer; Using the measurement information, stratum-corresponding measurement information corresponding to the depth range of the stratum at the pile hole position in the stratum information is identified; A construction support method characterized by the fact that, when new measurement information is obtained from the measuring device, information regarding reaching the supporting layer in the new measurement information is output to the display device using the stratum-corresponding measurement information.

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