Construction assist device and construction assist method

Abstract

To provide a construction assist device and a construction assist method to assist in managing the boring status 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 connected to a display unit. The management device 30: obtains stratum information up to a bearing layer corresponding to the depths in the ground at a job site; uses the stratum information to estimate waste soil information regarding the waste soil discharged at a pile hole location in the job site; and, based on the waste soil information, outputs to the display unit waste soil assist information needed for waste soil treatment.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.

[0004] Furthermore, when pile excavation is performed, discharged soil is generated. Therefore, technologies for reusing discharged soil are also being considered (see, for example, Patent Document 3). The excavated soil improvement system described in Patent Document 3 is equipped with an electromagnetic flowmeter, a gamma-ray density meter, a neutron moisture meter, and an improvement device that adds improvement materials to the excavated soil in a mud discharge pipe on the transportation route. The soil quality of the excavated soil is determined from the volume of excavated soil transported per unit time measured by the electromagnetic flowmeter and the moisture content measured by the gamma-ray density meter and the neutron moisture meter. Then, improvement materials are added to the excavated soil to give it a predetermined hardness depending on the moisture content and soil quality. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2021-80737 [Patent Document 2] Japanese Patent Application Publication No. 2023-144684 [Patent Document 3] Japanese Patent Application Laid-Open No. 2002-097896 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the method of soil modification varies depending on the soil quality, and if the preparation for this modification is time-consuming, efficient pile construction cannot be achieved. [Means for solving the problem]

[0007] The construction support device for solving the above problems includes a control unit connected to a display device and supports management of the excavation status of pile holes. The control unit acquires stratum information at the construction site according to the depth of the ground to the bearing layer, uses the stratum information to predict soil discharge information regarding the soil discharge to be discharged at the pile hole position at the construction site, and outputs soil discharge support information required for soil discharge processing based on the soil discharge information to the display device. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to assist in managing the excavation status of pile holes. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an explanatory diagram illustrating 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 geological formation estimation model according to the embodiment. [Figure 7] FIG. 2 is an explanatory diagram of the relationship between a geological layer estimation model and a pile hole model in 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 relationship between a geological layer estimation model and a pile hole model in the embodiment. [Figure 10] FIG. 2 is an explanatory diagram of a dump site in the embodiment. [Figure 11] FIG. 2 is an explanatory diagram of a display screen in the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the construction support device and construction support method will be described below with reference to Figures 1 to 11. In this embodiment, it is assumed that cement (modifying material) is added to the excavated soil generated during the excavation of a pile hole h0 to modify the excavated soil.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] (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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] (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.

[0021] (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.

[0022] 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. 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.

[0023] 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.

[0024] (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.

[0025] 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.

[0026] 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).

[0027] 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.).

[0028] 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).

[0029] (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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] (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.

[0034] As shown in FIG. 3, the management device 30 includes a control unit 31, a ground information storage unit 32, and an excavation information storage unit 33. The control unit 31 performs various processes (processes such as an acquisition stage, an analysis stage, and a support stage) and functions as an acquisition unit 311, an analysis unit 312, and a support unit 313 by executing an excavation management program stored in the memory.

[0035] 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).

[0036] The analysis unit 312 performs processing to analyze the geological formation information. The analysis unit 312 stores information on the unit cement amount required for reforming according to the geology (unit volume). The support unit 313 executes a process for managing the construction status of the construction site. The support unit 313 holds an arrival determination model for determining whether the support layer has been reached, according to the measurement information acquired from the measurement device 20. As the arrival determination model, for example, a multiple regression equation using the measurement values ​​as variables as described in Patent Document 1 can be used.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 measurement information is acquired from the measuring device 20. This excavation management information records pile number, construction order, pile hole position, pile specifications, measurement information, and bearing layer depth.

[0041] The pile number is an identifier for identifying each pile. The construction order is the order in which the pile hole h0 for this pile is excavated.

[0042] The pile hole position is a coordinate for specifying the position of the pile at the construction site. The pile specifications are information about the pile length, pile diameter, etc. of the pile hole h0, and the size of the pile hole h0.

[0043] 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.

[0044] The bearing layer depth is the depth at which the bearing layer is determined to have been reached in this pile hole h0. (Administrative processing) The management process will be described with reference to Figures 4 to 11. The management process includes an evaluation process and an excavation support process.

[0045] (Evaluation process) First, the evaluation process will be described with reference to Figure 4. Here, the excavation order is determined from the stratum information.

[0046] 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 according to the depth of the ground to the bearing layer at the construction site.

[0047] 6, 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.

[0048] Then, the control unit 31 of the management device 30 performs 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 S12). Specifically, the analysis unit 312 of the control unit 31 acquires 3D model information from the construction management system C2 and registers the excavation management information in the excavation information storage unit 33. In this case, the pile number and the pile hole position are recorded in the excavation management information. Next, the analysis unit 312 identifies the stratum at the pile hole position in the stratum model recorded in the ground information storage unit 32.

[0049] As shown in FIG. 7, in the stratum model 510, the pile hole models 503 are arranged in correspondence with the positions of the pile holes so as to reach the supporting layer model 511 and have a length sufficient to function as piles. In this case, as shown in FIG. 8, the pile hole model 503 reaches the supporting layer model 511 via a plurality of stratum models 501a to 501e.

[0050] Next, the control unit 31 of the management device 30 executes a prediction process for soil removal (step S13). Specifically, the analysis unit 312 of the control unit 31 identifies the depth range of the stratum in the pile hole h0. Next, the analysis unit 312 multiplies the pile diameter of the pile hole h0 by the depth range for each stratum to calculate the volume (amount of soil removed) of each stratum.

[0051] As shown in Fig. 9, depth ranges d1 to d6 are specified for the stratum models 501a to 501e and the bearing stratum model 511 in the pile hole model 503. Note that here, a statistical depth range is specified taking into consideration the unevenness present at the boundary surface of the stratum. Then, the pile specifications (pile diameter) and the depth ranges d1 to d6 are used to calculate the amount of soil removed for each of the stratum models 501a to 501e and the bearing stratum model 511.

[0052] Next, the control unit 31 of the management device 30 executes a process for predicting the amount of cement (step S14). Specifically, the analysis unit 312 of the control unit 31 obtains the unit amount of cement required for reforming according to the geology (unit volume) contained in the discharged soil. Then, the analysis unit 312 calculates the amount of cement for each discharged soil of each geology by multiplying the discharged soil volume by the unit amount of cement. Then, the control unit 31 of the management device 30 repeats the above process until it is completed for all the stake holes h0.

[0053] Next, the control unit 31 of the management device 30 executes a process for identifying the soil disposal site (step S15). Specifically, the analysis unit 312 of the control unit 31 identifies the soil disposal site set according to the pile hole position from the construction management system C2.

[0054] In this case, as shown in Fig. 10, in the stratum model 520, a discharged soil storage area 521 is placed near the pile hole model 503. Then, a discharged soil storage area for temporarily storing discharged soil is assigned to each pile hole h0. Here, a discharged soil storage area near each pile hole is assigned.

[0055] Next, the control unit 31 of the management device 30 executes a process for setting the excavation order (step S16). Specifically, the analysis unit 312 of the control unit 31 sets the excavation order according to the amount of cement required for discharging soil from each pile hole h0. Here, the excavation order of the pile holes h0 is determined in descending order of the cement amount. Note that the construction site may be divided into multiple areas, and the order within each area may be set. Then, the analysis unit 312 outputs the location of the soil disposal storage area and the excavation order of each pile hole h0 as soil discharge support information. Furthermore, the soil discharge support information includes the soil quality of the soil discharged from each pile hole h0, the amount of soil discharged, and the amount of cement required at the soil discharge storage area, and outputs this information to the display device H13 as soil discharge support information.

[0056] (Drilling support processing) Next, the excavation support process will be described with reference to Fig. 5. This process is carried out when the pile hole h0 is excavated according to the construction order.

[0057] Here, the control unit 31 of the management device 30 executes a measurement information acquisition process (step S21). Specifically, the support unit 313 of the control unit 31 acquires new measurement information from the measuring device 20 and records it in the excavation information storage unit 33.

[0058] Next, the control unit 31 of the management device 30 executes a process of determining whether the object has reached the support layer (step S22). Specifically, the support unit 313 of the control unit 31 outputs the acquired measurement information to the display device H13.

[0059] As shown in Fig. 11, a display screen 600 is output on the display device H13. This display screen 600 displays the measurement information (drilling time, current value, integrated current value, vibration spectrum, etc.) recorded in the excavation information storage unit 33 for this pile hole h0. Next, the support unit 313 inputs the measurement information of this pile hole h0 into an arrival judgment model to estimate a hardness index value of the ground, and judges whether the bearing stratum has been reached based on this hardness index value. When the support unit 313 judges that the bearing stratum has been reached, it outputs the judgment 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.

[0060] During this excavation, soil is discharged from the pile hole h0 (step S23). Specifically, during excavation, the discharged soil is transported to a disposal site. Then, the control unit 31 of the management device 30 performs soil discharge processing (step S24). Specifically, the support unit 313 of the control unit 31 calculates the soil quality of the stratum and the amount of soil discharged (soil discharge information) according to the excavation depth for the new excavation. In this case, the support unit 313 calculates the required amount of cement (soil discharge support information) according to the soil quality of the discharged soil and the amount of soil discharged (accumulated amount). Then, the support unit 313 outputs the calculated required amount to the display device H13. The person in charge at the construction site adds the required amount of cement to the discharged soil transported from the pile hole h0 in the excavation order to the discharged soil storage area.

[0061] (Action of this embodiment) Since the geological layer model information of the strata that constitute the ground at the construction site is used, the soil quality of the stratum to be excavated is identified, and the soil removal processing corresponding to the soil quality is then identified.

[0062] (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) and a process of identifying the stratum at the pile hole position (step S12), thereby making it possible to predict the stratum to be excavated.

[0063] (2) In this embodiment, the control unit 31 of the management device 30 executes a process for predicting the amount of soil discharged (step S13), thereby making it possible to predict the soil quality and amount of soil discharged during excavation. (3) In this embodiment, the control unit 31 of the management device 30 executes a process for predicting the amount of cement (step S14), thereby making it possible to predict the amount of cement required to reform the discharged soil.

[0064] (4) In this embodiment, the control unit 31 of the management device 30 executes a process for setting a dump site (step S15), whereby the dumped soil can be temporarily stored and a dumping process can be carried out.

[0065] (5) In this embodiment, the control unit 31 of the management device 30 executes a process for setting the excavation order (step S16). This allows the excavation order to be determined taking into consideration the effort required for soil discharge processing, thereby improving the efficiency of construction. For example, if soil discharge processing requires a lot of effort, a suitable soil discharge storage area will be required, so excavation can be prioritized and soil discharge processing can be performed.

[0066] 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 control unit 31 of the management device 30 executes the setting process of the soil disposal storage area (step S15). Here, the control unit 31 of the management device 30 specifies the soil disposal storage area set according to the pile hole position from the construction management system C2. Alternatively, the control unit 31 of the management device 30 may suggest the location of the soil disposal storage area. In this case, the control unit 31 of the management device 30 temporarily stores the soil according to the amount of soil discharged, and calculates the area required for the soil discharge processing. Then, the analysis unit 312 may output the setting of the soil disposal storage area at a position a predetermined distance away from the pile hole h0 to be excavated.

[0067] In this case, the scheduled excavation time of each pile hole h0 may be used to simulate the amount of soil discharged from each pile hole h0. By this simulation, the work details required at each soil disposal site are output to the display device H13.

[0068] In the above embodiment, the control unit 31 of the management device 30 executes the process of setting the soil disposal site (step S15). Alternatively, the soil may be transported by a belt conveyor, and an adding device installed along the way may add concrete according to the soil quality. In this case, the soil quality and amount of soil to be removed are predicted in real time according to the excavation depth, and the amount of concrete to be added is determined. Then, the adding device is instructed to add the determined amount of concrete.

[0069] In the above embodiment, the control unit 31 of the management device 30 executes the process of setting the excavation order (step S16). Here, the excavation order is set according to the required amount of cement. The method of setting the excavation order is not limited to using the required amount of cement. For example, the excavation order may be determined based on the purpose of reusing the discharged soil. Furthermore, the excavation order may be determined according to the soil quality of the strata of other pile holes h0 to be excavated at the same time. In this case, for example, the excavation timing is adjusted so that strata of the same type of soil quality are excavated at the same time. This allows the discharge of soil of similar soil quality to be processed collectively.

[0070] In the above embodiment, cement is used to modify the soil. However, the modifying material is not limited to cement. For example, in the case of a stratum containing harmful substances, a modifying material is added to reduce the impact.

[0071] 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. The measurement information includes measurement values ​​of depth, current, flow rate, and vibration. The measurement information is not limited to these. Some of these or other measurement values ​​may also be used. For example, an audio recording device that captures sounds generated during excavation may be used to obtain an acoustic spectrum as measurement information.

[0072] In the above embodiment, the support unit 313 holds an arrival determination model for determining whether the target object has reached the support layer, based on the measurement information acquired from the measurement device 20. The arrival determination model uses a multiple regression equation or the like, with the measurement values ​​as variables. The arrival determination model is not limited to a regression equation based on multiple regression analysis. For example, a prediction model may be used, with each measurement value as input and the presence or absence of the target object having reached the support layer as output. In this case, the prediction model is generated by deep learning using a dataset consisting of the measurement information and the support layer arrival determination information as training data.

[0073] 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.

[0074] In the above embodiment, a reach determination model is generated that predicts the soil type and the arrival at the bearing layer from measurement information (measurement values ​​of excavation time, current, flow rate, and vibration). In addition, the reach determination model may be generated using stratum information predicted using boring results as one of the input information.

[0075] 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 or 2, characterized in that the measurement information includes at least one of excavation depth data, current value of the excavator, amount of water supplied to the excavator, and data relating to vibration of the excavator.

[0076] (b) The construction support device according to any one of claims 1, 2 and (a), characterized in that the control unit outputs a soil discharge storage area as the soil discharge support information according to the soil discharge amount of the soil discharge information.

[0077] (c) The control unit outputs, as the soil removal support information, a simulation result of the position of the soil removal storage area around the pile hole position at the construction site according to the soil removal amount of the soil removal information. Construction support device according to any one of claims 1, 2, (a) and (b). [Explanation of symbols]

[0078] 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 display device and supporting management of the excavation status of a pile hole, The control unit Depending on the depth of the ground to the supporting layer, information on the geological layers at the construction site is acquired, Using the geological layer information, predict soil discharge information regarding soil discharge at a pile hole position at the construction site, The construction support device is characterized in that soil discharge support information required for soil discharge processing is output to the display device based on the soil discharge information.

2. The soil discharge information includes information on the soil quality and amount of the soil discharged, 2. The construction support device according to claim 1, wherein the control unit outputs information about a modifying material to be added to the discharged soil according to the soil quality and amount of the discharged soil.

3. A method for supporting management of a pile hole excavation status using a construction support device having a control unit connected to a display device, The control unit Depending on the depth of the ground to the supporting layer, information on the geological layers at the construction site is acquired, Using the geological layer information, predict soil discharge information regarding soil discharge at a pile hole position at the construction site, A construction support method characterized in that soil discharge support information required for soil discharge processing is output to the display device based on the soil discharge information.

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