Judgment support system and judgment support method

Abstract

To provide a determination support system and determination method for accurately specifying the depth at which a pile hole reaches a support layer.SOLUTION: A determination support system 20 includes a pile management data storage unit 43 that stores a support layer depth at the site, and a control unit 41 that is connected to a determiner terminal 30 and a confirmer terminal 50. When acquiring the determined support layer depth at the site, the control unit 41 records it in the pile management data storage unit 43 in association with the site identifier of the site. According to a plurality of pieces of excavation status information in the excavation of a pile hole to be processed, when a new support layer depth determined that a determiner has reached the support layer is acquired from the determiner terminal 30, the control unit 41 acquires from the pile management data storage unit 43 the determined support layer depth at the same site as the pile hole to be processed. The control unit 41 outputs confirmation information including the acquired determined support layer depth and new support layer depth to the confirmer terminal 50.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a judgment support system and a judgment support method for determining whether a pile hole for installing a pile has reached a bearing layer. [Background technology]

[0002] When constructing a structure, there is a construction method in which multiple piles are driven into the supporting layer, and the load of the structure is supported by the supporting layer via the piles. For this reason, the pile holes into which the piles are inserted must always reach the supporting layer.

[0003] Normally, before constructing a structure, a ground survey is conducted to determine the depth (location) of the supporting layer. Then, a standard penetration test is performed during the ground survey to obtain the N-value, an index that indicates the hardness of the ground. However, even when using this index, due to the limitations of the excavation method, confirmation of whether the supporting layer has been reached often relies on subjective judgment based on experience, making it difficult to make an objective judgment.

[0004] Furthermore, the geological structure is not necessarily the same across the entire construction site. Furthermore, because soil surveys are costly and time-consuming, it is difficult to conduct soil surveys at all pile hole locations. In addition, even if the obtained N-value is the same, the geology may differ. Therefore, even if the columnar diagram and N-value based on the soil survey were known, it was difficult to determine whether each pile hole had reached the supporting layer.

[0005] Therefore, a technique has been studied in the past for determining whether the bearing stratum has been reached by using drilling status information when drilling a pile hole in which a pile is to be placed (see, for example, Patent Document 1). In the technique described in Patent Document 1, the control unit of the drilling management system displays an output screen. This output screen includes a depth-elapsed time graph, a depth-average drilling speed graph, a depth-water volume graph, a depth-current value graph, a depth-integrated current value graph, a depth-horizontal vibration analysis graph, and a depth-vertical vibration analysis graph. The control unit adds the drilling depth during the drilling time period to the depth-elapsed time graph, and adds the average drilling speed, water volume, instantaneous current value, and vibration characteristic value associated with the drilling depth to each graph, respectively. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Publication No. 2018-112010 Summary of the Invention [Problem to be solved by the invention]

[0007] As shown in the above-mentioned Patent Document 1, the accuracy of determining whether the bearing layer has been reached has been improved by using the average drilling speed, water volume, instantaneous current value, and vibration characteristic value associated with the drilling depth. However, there has been a demand for further improvements in the accuracy of determining whether the bearing layer has been reached. [Means for solving the problem]

[0008] The determination support system for solving the above problem is a determination support system including a support layer depth information storage unit that stores the support layer depth at the site, and a control unit connected to a user terminal, and the control unit The depth of the supporting layer determined in When the above information is acquired, it is recorded in the supporting layer depth information storage unit in association with the site identifier of the site, and it is determined that the assessor has reached the supporting layer according to a plurality of excavation status information in the excavation of the pile hole to be processed. The pile hole to be treated When a new bearing layer depth is acquired from the user terminal, the target pile hole The site that forms Same site as In this case, the depth of the supporting layer of the drilled pile holes arranged in a row including the pile hole to be treated is determined. is acquired from the support layer depth information storage unit, A graph showing depth on the vertical axis and distance from the target hole on the horizontal axis, The aforementioned The confirmed bearing layer of the drilled pile hole obtained Depth and 、 the new support layer depth; 、 and outputting confirmation information including the above to the user terminal. [Effects of the Invention]

[0009] According to the present invention, the depth to which the pile hole reaches the bearing layer can be accurately determined. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a schematic front view of a drilling device for drilling a pile hole in an embodiment. FIG. [Figure 2] 1 is a configuration diagram showing a configuration of a judgment support system according to an embodiment. [Figure 3] FIG. 2 is an explanatory diagram of a hardware configuration according to an embodiment. [Figure 4] 3 is an explanatory diagram illustrating a data configuration in an excavation situation data storage unit of the judgment support system in the embodiment. FIG. [Figure 5] 10 is an explanatory diagram illustrating the data configuration in a pile management data storage unit of the judgment support system in the embodiment. FIG. [Figure 6] 3 is a flowchart illustrating a processing procedure of the judgment support system according to the embodiment. [Figure 7] FIG. 10 is an explanatory diagram illustrating a working screen displayed on an assessor terminal of the assessment support system in the embodiment. [Figure 8] FIG. 10 is an explanatory diagram illustrating a confirmation screen displayed on a confirmer terminal of the judgment support system according to the embodiment. [Figure 9] FIG. 10 is an explanatory diagram illustrating a confirmation screen displayed on a user terminal of the judgment support system in the first modified example. [Figure 10] FIG. 11 is an explanatory diagram illustrating a confirmation screen displayed on a user terminal of the judgment support system in the second modified example. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described below with reference to Figs. 1 to 8. In this embodiment, when an assessor determines that the drilled pile hole has reached the bearing stratum, he / she inputs the determined depth of the bearing stratum (new bearing stratum depth). Then, a checker determines (checks) whether the depth of the bearing stratum input by the assessor is appropriate. For this determination, the checker uses the depth of the bearing stratum determined around the drilled pile hole (determined bearing stratum depth). In this embodiment, the confirmed bearing stratum depth, which has been confirmed by the checker, is used as the determined bearing stratum depth.

[0012] First, with reference to FIG. 1, an excavator 10 for excavating pile holes h0 for installing piles for a building will be described. 1, 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.

[0013] 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. The raising and lowering of the drilling head 18 is controlled by an operator in the control room 13.

[0014] In addition, a drilling water supply device (not shown) is connected to the drilling machine 10 to supply drilling water to the drilling head 18. The amount of drilling water is adjusted by the operator in the control room 13 depending on the drilling conditions.

[0015] The judgment support system 20 shown in Figure 2 comprises an judge's terminal 30, a management server 40, and a checker terminal 50. The judge's terminal 30 is a user terminal used by an judge (user) who judges that excavation has reached the supporting layer based on excavation status information of the excavator 10, etc. This judge's terminal 30 is connected to a drilling depth measuring instrument 21, a flow rate measuring instrument 22, a current measuring instrument 23, and a vibration measuring instrument 24. Each measuring instrument (21 to 24) constantly performs measurements and transmits the measured values ​​to the judge's terminal 30.

[0016] The drilling depth measuring instrument 21 measures the amount of wire fed out inside the mast 14 and measures the drilling depth (depth) according to the position of the drilling head 18. In this case, the drilling depth measuring instrument 21 measures the drilling depth in relation to time.

[0017] The flow rate measuring device 22 measures the injection flow rate of drilling water supplied from the drilling water supply device. In this case, the flow rate measuring device 22 measures the injection water amount in relation to time. The current meter 23 measures the load current of the drive motor of the auger machine 16. In this case, the current meter 23 measures the current value in relation to time.

[0018] The vibration measuring instrument 24 measures vibrations at the installation location. In this embodiment, the vibration measuring instrument 24 is attached to the mast 14 and measures vibration characteristics in three directions of the base machine 11: the front-to-back direction, the left-to-right direction, and the up-to-down direction. In this case, the vibration measuring instrument 24 measures the vibration characteristics in relation to time. Note that the vibration measuring instrument 24 may be attached to a location other than the mast 14, such as the operation room 13.

[0019] (Example of hardware configuration) FIG. 3 shows an example of the hardware configuration of an information processing device H10 that constitutes the assessor terminal 30, the management server 40, and the verifying terminal 50 of the assessment support system 20.

[0020] The information processing device H10 includes a communication device H11, an input device H12, a display device H13, a storage unit H14, and a processor H15. Note that this hardware configuration is an example, and it can also be realized by other hardware.

[0021] The communication device H11 is an interface that establishes a communication path with another device and executes data transmission and reception, and is, for example, a network interface or a wireless interface.

[0022] The input device H12 is a device that accepts input from a user (evaluator, confirmer, etc.), and is, for example, a mouse, a keyboard, etc. The display device H13 is a display, a touch panel, etc. that displays various information.

[0023] The memory unit H14 is a storage device (for example, an excavation status data memory unit 32, a ground investigation data memory unit 42, and a pile management data memory unit 43, which will be described later) that stores data and various programs for executing various functions of the assessor terminal 30, the management server 40, and the verifying terminal 50. Examples of the memory unit H14 include a ROM, a RAM, and a hard disk.

[0024] The processor H15 uses the programs and data stored in the storage unit H14 to control each process (for example, processes in the control units 31 and 41 described below) in the assessor terminal 30, the management server 40, and the verifying terminal 50. Examples of the processor H15 include a CPU and an MPU. The processor H15 loads a program stored in a ROM or the like into a RAM and executes various processes corresponding to various processes.

[0025] The processor H15 is not limited to a processor that performs all of its processing using software. For example, the processor H15 may include a dedicated hardware circuit (e.g., an application-specific integrated circuit (ASIC)) that performs hardware processing for at least some of the processing it performs. That is, the processor H15 may be configured with the following:

[0026] (1) One or more processors operating according to a computer program (software) (2) One or more dedicated hardware circuits that perform at least some of the processes; or (3) Circuits, including combinations thereof

[0027] The processor includes a CPU and memory, such as RAM and ROM, that stores program code or instructions configured to cause the CPU to perform processes. Memory, or computer-readable media, includes any available media that can be accessed by a general-purpose or special-purpose computer.

[0028] (Functions of the decision support system) Next, the functions of the assessor terminal 30, the management server 40, and the checker terminal 50 of the assessment support system 20 will be described with reference to FIGS.

[0029] The assessor terminal 30 shown in FIG. 2 includes a control unit 31 and an excavation situation data storage unit 32. The control unit 31 performs the processes described below (processes such as a measurement management stage and a bearing layer depth acquisition stage). To this end, the control unit 31 functions as a measurement management unit 311 and a bearing layer depth acquisition unit 312 by executing an excavation management program stored in the memory.

[0030] The measurement management unit 311 stores the measurement values ​​acquired from each measuring device (21-24) in memory and identifies the measurement values ​​for each depth using the measurement values ​​for each predetermined time period. Specifically, the measurement management unit 311 identifies the excavation speed (excavation time), water volume, current value, and vibration during the time period when excavation actually proceeded (excavation time period). Here, in hard stratum, the excavation head 18 may be temporarily withdrawn immediately before excavation. For this reason, the actual excavation depth of the excavation head 18 does not necessarily increase monotonically with elapsed time. Therefore, the measurement management unit 311 deletes the measurement values ​​for the period when the excavation head 18 was withdrawn or stopped from the measurement values ​​for each predetermined time period stored in memory, identifies the measurement values ​​for the excavation time period that was actually used for excavation, and records them in the excavation status data storage unit 32. Then, the measurement management unit 311 generates graphs of the drilling speed, water volume, current value, integrated current value, vibration characteristic value, etc. associated with the drilling depth by linking the measurement values ​​during the drilling time period that was actually used for drilling, and displays them on the display device H13.

[0031] Furthermore, the measurement management unit 311 executes an analysis process of vibration characteristics by performing frequency analysis of the vibration measured by the vibration measuring instrument 24. In this embodiment, a vibration characteristic value (for example, the magnitude of vibration such as maximum amplitude or maximum acceleration) is identified for each frequency band.

[0032] Furthermore, the measurement management unit 311 integrates the current value to calculate the integrated current value. When the excavation is completed, the measurement management unit 311 transmits the excavation status information recorded in the excavation status data storage unit 32 to the management server 40.

[0033] When the bearing layer depth acquisition unit 312 acquires the depth (new bearing layer depth) at which the assessor determines that the excavated pile hole has reached the bearing layer, it stores the depth in memory and transmits it to the management server 40.

[0034] As shown in Fig. 4, the excavation status data storage unit 32 stores excavation status data 320 used to determine whether the bearing layer has been reached. This excavation status data 320 is recorded before excavation begins, and is recorded and updated when measurement values ​​for each depth are obtained. The excavation status data 320 includes data on the site identifier, pile identifier, detailed information about the pile hole, N value corresponding to the depth, and excavation status information corresponding to the depth.

[0035] The site identifier data area and the pile identifier data area record an identifier for identifying the site where the pile hole is constructed and a pile identifier for identifying the pile to be installed in the pile hole, respectively. Since one pile is set in a pile hole, the pile hole is identified by the pile identifier.

[0036] The detailed information data area of ​​the pile hole includes data on the pile position, pile attribute information, construction machine identifier, etc. The pile position is the position (coordinates) of this pile hole (pile). The pile attribute information is information on the pile such as the shape, size, and length of the pile. The construction machine identifier is an identifier for specifying the construction machine (excavator) used to form this pile hole.

[0037] The N-value data field corresponding to the depth records data on the N-value associated with the depth. This N-value is the value obtained by a boring survey conducted nearest to the pile hole.

[0038] The excavation status information data area corresponding to the depth stores excavation status information corresponding to the excavation depth, including the excavation speed, water volume, current value, integrated current value, and vibration characteristic value.

[0039] 2 executes a determination support process for supporting the determination of reaching the bearing layer. The management server 40 includes a control unit 41, a geological survey data storage unit 42, and a pile management data storage unit 43 as a bearing layer depth information storage unit.

[0040] The control unit 41 functions as a judgment support unit by executing a judgment support program stored in the memory. When the control unit 41 receives a new support layer depth from the assessor terminal 30, it notifies the checker terminal 50. When the control unit 41 receives access from the checker terminal 50, it transmits confirmation information to the checker terminal 50. When the control unit 41 obtains return information from the checker terminal 50, it notifies the assessor terminal 30 of a correction request.

[0041] The geological survey data storage unit 42 stores geological survey result data acquired by boring surveys. This geological survey data is recorded before drilling pile holes. The geological survey data includes data on the site identifier, the survey position (coordinates), and the N value according to the depth.

[0042] The site identifier data area records data relating to a site identifier for identifying the site where the boring survey was conducted. The survey location data area records data on the location (coordinates) where the boring survey was conducted at this site.

[0043] The N-value data area according to depth records data on N-values ​​created based on the standard penetration test data obtained in this boring survey. This N-value is recorded in relation to depth.

[0044] As shown in Fig. 5, the pile management data storage unit 43 stores pile management data 430 related to piles to be used in buildings constructed on site. This pile management data 430 is registered when a building is designed on site and the positions of piles are determined, and is recorded and updated when information on the construction status of pile holes, the depth of the bearing layer, etc. is acquired. The pile management data 430 includes a site identifier, a pile identifier, the position of the pile, pile attribute information, a construction machine identifier, information on the excavation status of the pile hole, information on the assessor, the depth reached to the bearing layer, items of the basis for the assessment, information on the verifyer, a status, etc.

[0045] The site identifier data area and the pile identifier data area record a site identifier for identifying the site where the pile is to be installed and a pile identifier for identifying the pile, respectively. The pile position data area and pile attribute information area record data on the position (coordinates) of the pile at the site and attribute information such as the shape and size of the pile.

[0046] In the construction machine identifier data area, an identifier for specifying the construction machine (excavator 10) used to form the pile hole in which the pile is to be installed is recorded. The data area for pile hole excavation status information records excavation status information when the pile hole in which the pile is to be installed is excavated.

[0047] The assessor information data area stores data about the assessor who determined that the stakehole reached the supporting layer. In this embodiment, the assessor information includes a user identifier that identifies the assessor and the email address of the assessor terminal 30.

[0048] The bearing layer depth data area and the judgment basis item data area record the depth (bearing layer depth) when it is determined that the drilled pile hole has reached the bearing layer, and data on the items that are the basis for determining that the bearing layer has been reached, respectively. The bearing layer depth recorded in the bearing layer depth data area functions as the determined bearing layer depth when the status is confirmed, and functions as the new bearing layer depth when the status is other than the confirmed status.

[0049] The checker information data area stores data related to the checker who checks the depth (new support layer depth) that the judge has determined to have been reached by the support layer. In this embodiment, the checker information includes a user identifier that identifies the checker and an email address of the checker terminal 50.

[0050] The status data area records the status (condition) regarding the determination of whether the message has reached the support layer. For example, the status may be unconfirmed, awaiting confirmation, returned, or confirmed. The checker terminal 50 is a computer terminal (user terminal) used by the checker (user). Using the checker terminal 50, the checker performs a check on the depth of the pile reaching the bearing layer determined by the assessor.

[0051] (Support group determination process) Next, the support layer determination process will be described with reference to Figures 6 to 8. Here, a plurality of pile holes are formed on the grounds of a construction site.

[0052] In this case, a boring survey process is carried out at the construction site before excavation. In this boring survey process, as is well known, a geological survey is carried out on the construction site premises. Then, N values ​​for each predetermined depth are obtained, and a graph of N values ​​according to depth (depth-N value graph) is generated. Then, in response to a user's operation, the control unit 41 of the management server 40 obtains data related to the graph of N values ​​according to depth via the survey result registration screen. Then, the control unit 41 registers geological survey data including the N values ​​according to depth and the position (coordinates) of the boring survey in the geological survey data storage unit 42, associating it with the site identifier of the site.

[0053] (Drilling process) After that, the drilling process for each pile hole is carried out. As shown in Fig. 6, first, in the excavation process, the assessor terminal 30 executes a process for starting pile hole excavation (step S11). Specifically, the assessor terminal 30 accesses the management server 40 and transmits an excavation start notification to the management server 40 in response to an operation by the assessor. This excavation start notification includes the site identifier input by the assessor and the position of the pile hole to be excavated.

[0054] Next, the management server 40 executes a process of transmitting detailed information about the pile hole (step S12). Specifically, the control unit 41 of the management server 40 extracts pile management data 430 including the acquired site identifier and the position of the pile hole (pile) in the pile management data storage unit 43. Furthermore, the control unit 41 acquires an N value corresponding to the depth of the geological survey data at the position closest to the position of the pile hole from the geological survey data storage unit 42. Then, the control unit 41 transmits the pile identifier of the pile management data 430, the attribute information of the pile, and the N value corresponding to the acquired depth to the assessor terminal 30.

[0055] 7, the control unit 31 of the assessor terminal 30 displays a work screen 600 on the display device H13. This work screen 600 includes a pile identifier 601, detailed information 603 about the pile hole, and a graph 604 of the N value according to the depth. Furthermore, this work screen 600 includes a display field 602 that displays the current depth at the time of excavation, an excavation status information display field 605, a bearing layer confirmation depth display field 606, an assessment basis selection field 607, an assessor input button 608, and a checker input button 609. At this stage, nothing is displayed in these display fields (602, 605, 606).

[0056] Then, the drive motor of the auger machine 16 of the excavator 10 starts to rotate, and the excavation head 18 is inserted into the ground to start excavation. When excavation starts, the control unit 31 of the assessor's terminal 30 executes a process for recording excavation status information in association with the depth (step S13). Specifically, the measurement management unit 311 of the control unit 31 acquires measurement values ​​measured by each measuring instrument (21-24) at predetermined time intervals. Furthermore, the measurement management unit 311 identifies the vibration characteristic value and the integral current value for the excavation time period using the measurement values ​​from each measuring instrument (21, 23, 24). Then, the measurement management unit 311 displays the excavation status information corresponding to the excavation depth for the identified excavation time period in the excavation status information display field 605 of the work screen 600, and displays the excavated depth in the display field 602. Here, the excavation status information displayed in the excavation status information display field 605 includes the excavation speed (excavation time), the amount of water injected, the current value, the integral current value, the vibration characteristic value, etc. Furthermore, in this case, the excavation status information display field 605 selectively displays some of the measurement values ​​in accordance with the assessor's instructions.

[0057] Thereafter, the assessor terminal 30 executes a process for requesting registration of a new bearing stratum depth (step S14). Specifically, the assessor judges whether or not the excavated stakehole has reached the bearing stratum while looking at the work screen 600. In this case, the assessor makes a judgment based on the N value of the excavation depth on the work screen 600 and the excavation status information displayed in the excavation status information display field 605. Then, when the assessor judges that the stakehole has reached the bearing stratum, he selects the assessor input button 608 on the work screen 600.

[0058] When the assessor input button 608 is selected, the assessor terminal 30 displays a bearing stratum depth input screen. This bearing stratum depth input screen includes an input field for the bearing stratum depth, a selection field for selecting the item of the basis for determining that the bearing stratum has been reached, and an input button. The assessor inputs the determined bearing stratum depth (new bearing stratum depth), selects the item used as the basis for the determination in the selection field, and then presses the input button. In this case, the assessor terminal 30 stores the new bearing stratum depth and the items of the basis for the determination in memory. Next, the assessor terminal 30 displays the work screen 600 displaying the items of the new bearing stratum depth and the basis for the determination. The assessor terminal 30 then transmits a registration request for the new bearing stratum depth to the management server 40. This registration request includes the input bearing stratum depth and the items of the basis for the determination, as well as the site identifier, pile identifier, and construction machine identifier stored in the memory of the assessor terminal 30.

[0059] In this case, the management server 40 executes temporary storage processing of the new bearing layer depth (step S15). Specifically, the control unit 41 of the management server 40 extracts pile management data 430 including the site identifier and pile identifier of the acquired registration request from the pile management data storage unit 43. Then, the control unit 41 records the acquired bearing layer depth, items of determination basis, and construction machine identifier in the identified pile management data 430. Furthermore, the control unit 41 records "unconfirmed" in the status of the pile management data 430.

[0060] Next, the management server 40 executes a confirmation request process (step S16). Specifically, the control unit 41 of the management server 40 identifies the confirmer information of the pile management data 430 that records the unconfirmed status, and sends a confirmation request to the email address of this confirmer information. This confirmation request includes a site identifier and a pile identifier for identifying the pile hole to be confirmed. Then, the control unit 41 updates the status of this pile management data 430 to waiting for confirmation.

[0061] Thereafter, the checker terminal 50 executes the access process (step S17). Specifically, the checker who has received the confirmation request accesses the management server 40 using the checker terminal 50. In this case, the checker terminal 50 transmits to the management server 40 a site identifier and a stake identifier for identifying the stake hole to be confirmed.

[0062] The management server 40 executes a process for acquiring the surrounding determined bearing layer depths (step S18). Specifically, the control unit 41 of the management server 40 identifies the pile management data 430 including the site identifier and pile identifier acquired from the checker terminal 50 as the pile management data to be confirmed, and identifies the position of the pile (pit) in this pile management data 430. Then, the control unit 41 extracts the pile management data 430 of the piles that are lined up in a row and include the pile hole to be confirmed from the pile management data 430 whose status is confirmed. Specifically, the control unit 41 identifies the pile management data 430 of the piles that are located in a second direction perpendicular to the first direction within a predetermined first range in the first direction, centered on the position of the pile hole to be confirmed. Then, the control unit 41 acquires the pile length and bearing layer depth of the identified pile management data 430.

[0063] Next, the management server 40 executes a process of transmitting a confirmation screen (step S19). Specifically, the control unit 41 of the management server 40 generates a confirmation screen. This confirmation screen includes the lengths and bearing layer depths of multiple other piles lined up in a row around the target pile hole, from the position of the target pile hole. Then, the control unit 41 transmits the generated confirmation screen to the verifying terminal 50.

[0064] The checker terminal 50 executes a process for transmitting the approval result (step S20). Specifically, the checker terminal 50 displays a confirmation screen on the display device H13. As shown in Fig. 8, the confirmation screen 650 includes a bearing layer depth display field 651, a confirmed depth display field 652 showing the bearing layer depth of the pile hole of the pile being confirmed, a confirmed button 655, and a return button 656. The bearing layer depth display field 651 shows the length of the pile hole Ph1 being confirmed and the lengths of the piles P2, P3, P4, P5, P6, and P8 lined up in a row including this pile hole Ph1. In this case, the piles P2 to P8 are displayed according to their distance from the pile hole Ph1. Furthermore, the new bearing layer depth CD1 is shown for the pile hole Ph1, and the determined bearing layer depths D2, D3, D4, D5, D6, and D8 are shown for the piles P2 to P8.

[0065] Here, the checker judges whether the new bearing layer depth of the target hole Ph1 is appropriate or not based on the intervals and lengths of the piles P2 to P8 and the determined bearing layer depths D2 to D8 displayed in the bearing layer depth display field 651. For example, as shown in this figure, if the new bearing layer depth CD1 is higher than the determined bearing layer depths D2 and D3 of the nearby piles P2 and P3, the checker may press the "Return" button 656 since the new bearing layer depth may be deeper. Also, if the new bearing layer depth of the target hole Ph1 is located between the determined bearing layer depths D2 and D3 of the piles P2 and P3, the checker presses the "Confirmed" button 655. The checker terminal 50 transmits the approval result to the management server 40 together with the site identifier and the pile identifier. This approval result includes the "return" information when the "Return" button 656 is selected, and the "approved" information when the "Confirmed" button 655 is selected.

[0066] The management server 40 executes a process of determining whether or not approval has been granted (step S21). Specifically, the control unit 41 of the management server 40 makes the determination based on the approval result acquired from the verifying terminal 50.

[0067] Here, when the management server 40 determines that the request is not approved based on the obtained return information ("NO" in step S21), it executes a correction request process (step S22). Specifically, the control unit 41 of the management server 40 records "return" in the status of the pile management data 430, which includes the site identifier and pile identifier included in the approval result. Then, the control unit 41 identifies the evaluator's email address from the evaluator information in the pile management data 430, and sends a correction request to this email address. This correction request includes the site identifier, the pile identifier, and the bearing layer depth recorded in the pile management data 430.

[0068] The assessor terminal 30 then executes the process of correcting the new bearing stratum depth (step S23). Specifically, the assessor who received the correction request uses the assessor terminal 30 to access the management server 40. In this case, the assessor terminal 30 sends a request to acquire a correction screen to the management server 40. The request to acquire a correction screen includes the new bearing stratum depth to be corrected, the site identifier of the site where the depth was entered, and the pile identifier. The control unit 41 of the management server 40 then identifies the pile management data 430 that includes the site identifier and the pile identifier, and records "being corrected" in the status of this pile management data 430. Next, the control unit 41 sends the work screen 600 including the identified pile management data 430 to the assessor terminal 30. The assessor terminal 30 then displays the work screen 600 on the display device H13 and executes the processes from step S14 onwards.

[0069] On the other hand, if the management server 40 determines that the approval has been obtained (if "YES" in step S21), it executes a process of storing the new bearing layer depth (step S24). Specifically, the control unit 41 of the management server 40 records "confirmed" in the status of the pile management data 430, which includes the site identifier and pile identifier included in the approval result.

[0070] After it is determined that the bearing layer has been reached, the excavation is completed after further excavation by a predetermined length. In this case, the excavation head 18 of the excavator 10 is withdrawn from the pile hole h0. Then, when detecting a rise in response to the withdrawal of the drilling head 18, the control unit 31 of the assessor terminal 30 transmits the excavation status information corresponding to the depth registered in the excavation status data storage unit 32, together with the site identifier and the pile identifier, to the management server 40. The control unit 41 of the management server 40 records the excavation status information in the pile management data 430 including the site identifier and the pile identifier.

[0071] (action) In this embodiment, the control unit 41 of the management server 40 displays a confirmation screen including the depth (new bearing layer depth) at which the assessor has determined that the pile hole h0 has reached the bearing layer using the excavation status information and the determined bearing layer depths around the pile hole on the verifyer terminal 50. This allows the verifyer to check whether the determined new bearing layer depth is appropriate by using the determined bearing layer depths of other piles at the same site.

[0072] According to this embodiment, the following effects can be obtained. (1) In this embodiment, the assessor terminal 30 executes a process of recording excavation status information associated with the depth (step S13) and a process of requesting registration of a new bearing stratum depth (step S14). The control unit 41 of the management server 40 executes a process of acquiring the surrounding determined bearing stratum depths (step S18) and a process of transmitting a confirmation screen (step S19). The confirmation screen includes the new bearing stratum depth as well as other determined bearing stratum depths acquired in step S18. Therefore, the assessor can determine whether the new bearing stratum depth is appropriate using the determined bearing stratum depths of other piles at the same site. Therefore, the appropriateness of the new bearing stratum depth can be determined based on multiple different pieces of information, and the depth to which the pilehole reaches the bearing stratum can be accurately identified.

[0073] (2) In this embodiment, in the process of acquiring the surrounding determined bearing layer depths (step S18), the control unit 41 of the management server 40 acquires the pile management data 430 of other piles that are lined up in a row including the pile hole (pile) to be confirmed and have a confirmed status. The control unit 41 generates and displays a confirmation screen including the pile lengths and bearing layer depths of the acquired pile management data 430. The person checking can determine whether the new bearing layer depth is appropriate from the lengths and bearing layer depths (determined bearing layer depths) of the other confirmed piles displayed on the confirmation screen.

[0074] (3) In this embodiment, when the control unit 41 of the management server 40 receives a rejection approval result from the verifying terminal 50, the control unit 41 executes a correction request process to the assessor terminal 30 (step S22). This allows the assessor to reconfirm the new support layer depth and correct it as necessary.

[0075] 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, a checker other than the assessor confirmed the new support layer depth determined by the assessor by viewing the confirmation screen. The assessor may also confirm the new support layer depth instead of the checker. In this case, the control unit 41 of the management server 40 executes a temporary storage process for the new support layer depth (step S15), then executes a process for acquiring the surrounding determined support layer depths, and sends the generated confirmation screen to the assessor terminal 30. Even in this case, it is possible to determine whether the new support layer depth is appropriate using the surrounding determined support layer depths of the same site.

[0076] In the above embodiment, in the process of acquiring the determined bearing stratum depths in the surrounding areas (step S18), the control unit 41 of the management server 40 acquires other pile management data 430 that are arranged in a row including the target pile hole and have the confirmed status from the position of the target pile hole. The determined bearing stratum depths displayed on the confirmation screen are not limited to piles arranged in a row. For example, the control unit 41 may acquire determined bearing stratum depths located within a predetermined range from the position of the target pile hole. Specifically, the control unit 41 identifies the pile management data 430 in which a position within the predetermined range and a confirmed status are recorded from the position of the target pile hole. Then, the control unit 41 transmits a confirmation screen including the determined bearing stratum depth and new bearing stratum depth of the identified pile management data 430 to the user terminal (the checker terminal 50 or the assessor terminal 30).

[0077] Furthermore, the display method of the determined bearing stratum depth is not limited to the display using the distance from the target stakehole. For example, the determined bearing stratum depths of the stakeholes located around the target stakehole may be acquired and displayed two-dimensionally or three-dimensionally.

[0078] Furthermore, the confirmation screen may display the determined bearing layer depths of the nearest pile holes together with the new bearing layer depth. In this case, the determined bearing layer depths of a plurality of pile holes (piles) may be displayed, or only the determined bearing layer depth of the nearest pile hole (piles) may be displayed. For example, the confirmation screen 700 shown in FIG. 9 includes pile hole information 701, new bearing layer depth 702, detailed information 703 of the adjacent pile, and a confirmation button 706. The pile hole information 701 includes the site of the pile hole to be confirmed (site name corresponding to the site identifier), pile identifier, and construction machine identifier. The detailed information 703 of the adjacent pile includes the pile identifier of the adjacent pile, the position (coordinates) of this pile, the distance from the pile hole to be confirmed, and the determined bearing layer depth of this pile. On this confirmation screen 700, the person checking can view the new bearing layer depth in comparison with the determined bearing layer depth of the adjacent pile. Therefore, it is possible to determine whether the new bearing layer depth is appropriate using the determined bearing layer depth of the adjacent pile at the same site.

[0079] Furthermore, by having the inspector input the determined bearing layer depth of the newly installed pile, the inspector can grasp the determined bearing layer depths of the surrounding areas along with the new bearing layer depth. For example, the confirmation screen 750 shown in Fig. 10 includes pile hole information 701, new bearing layer depth 702, detailed information 703 of the adjacent pile, and an input field 755. Here, the determined bearing layer depth displayed in the detailed information 703 of the adjacent pile is input into the input field 755. When the user terminal detects completion of input in the input field 755, it displays a confirmation screen 760 including a confirmation button 766. Then, the user can select the confirmation button 766 to confirm the new bearing layer depth.

[0080] In the above embodiment, the control unit 41 of the management server 40 displayed the determined bearing stratum depth on the confirmation screen. However, the information displayed on the confirmation screen may include information other than the determined bearing stratum depth. For example, the information on the stakeholes around the target stakehole, which have a status of waiting for confirmation, may be displayed on the confirmation screen in a manner that can be distinguished from the determined bearing stratum depth. In the above embodiment, the support layer depth confirmed by the confirmer is used as the determined support layer depth. The determined support layer depth included together with the new support layer depth on the confirmation screen is not limited to the support layer depth confirmed by the confirmer, but may also be the support layer depth determined by multiple people at the time of input.

[0081] Next, the technical ideas that can be understood from the above-described embodiment and other examples will be described below. (a) The control unit of the judgment support system described in claim 1 is characterized in that it acquires the determined support layer depth within a predetermined range relative to the hole to be processed, and includes the acquired determined support layer depth and the new support layer depth in the confirmation information.

[0082] (b) The control unit is characterized in that the confirmation screen displaying the confirmation information includes an input field for inputting the determined support layer depth, and after the determined support layer depth is entered into the input field, a confirmation button is displayed on the confirmation screen. [Explanation of symbols]

[0083] CD1...New bearing layer depth, D2, D3, D4, D5, D6, D8...Determined bearing layer depth, h0...Pile hole, Ph1...Pile hole, P2, P3, P4, P5, P6, P8...Pile, 10...Drilling machine, 11...Base machine, 12...Crawler, 13...Operation room, 14...Mast, 16...Auger machine, 17...Drilling rod, 18...Drilling head, 20...Judgment support system, 21...Drilling depth measuring instrument, 22...Flow rate measuring instrument, 23...Current measuring instrument, 24...Vibration measuring instrument, 30...Judge terminal, 31, 41...Control unit, 32...Drilling status data storage unit, 40...Management server, 42...Geological survey data storage unit, 43...Pile management data storage unit as bearing layer depth information storage unit, 50...Determined Approval person terminal, 311...measurement management section, 312...bearing layer depth acquisition section, 320...excavation status data, 430...pile management data, 600...work screen, 601...pile identifier, 602...display column, 603, 703...detailed information, 604...graph, 605...excavation status information display column, 606...bearing layer confirmation depth display column, 607...judgment basis selection column, 608...judger input button, 609...verifier input button, 650, 700, 750, 760...confirmation screen, 651...bearing layer depth display column, 652...confirmation depth display column, 655...confirmed button, 656...return button, 701...pile hole information, 702...new bearing layer depth, 706, 766...confirm button, 755...input column.

Claims

1. A judgment support system including a support layer depth information storage unit that stores support layer depths at a site, and a control unit connected to a user terminal, The control unit When the depth of the supporting layer determined at the site is acquired, the depth is recorded in the supporting layer depth information storage unit in association with the site identifier of the site; When a new depth of the supporting layer of the target pile hole, which the judge has determined to have reached the supporting layer, is acquired from the user terminal according to a plurality of pieces of excavation status information in the excavation of the target pile hole, the depth of the supporting layer of the already excavated pile holes lined up in a row including the target pile hole is acquired from the supporting layer depth information storage unit at the same site where the target pile hole is to be formed, A judgment support system characterized by outputting confirmation information to the user terminal, including the confirmed depth of the supporting layer of the acquired excavated pile hole and the new supporting layer depth, on a graph showing depth on the vertical axis and distance from the pile hole to be processed on the horizontal axis.

2. A judgment support method using a judgment support system including a support layer depth information storage unit that stores support layer depths at a site and a control unit connected to a user terminal, The control unit When the depth of the supporting layer determined at the site is acquired, the depth is recorded in the supporting layer depth information storage unit in association with the site identifier of the site; When a new depth of the supporting layer of the target pile hole, which the judge has determined to have reached the supporting layer, is acquired from the user terminal according to a plurality of pieces of excavation status information in the excavation of the target pile hole, the depth of the supporting layer of the already excavated pile holes lined up in a row including the target pile hole is acquired from the supporting layer depth information storage unit at the same site where the target pile hole is to be formed, A judgment support method characterized by outputting confirmation information to the user terminal, including the confirmed depth of the supporting layer of the acquired excavated pile hole and the new supporting layer depth, on a graph showing depth on the vertical axis and distance from the pile hole to be processed on the horizontal axis.

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