Support layer reach management system, method and program for excavation work

Abstract

To efficiently and accurately measure ground strength for all piles, to minimize risks in an excavation work of non-homogeneous ground, and to improve quality and efficiency of a construction.SOLUTION: A method for managing a work of excavating vertical holes in a ground of a specified area for driving piles comprises: a preliminary geological survey process, prior to excavating the vertical hole for each pile for all piles to be driven within the specified area, in which a preliminary geological survey is conducted, in which a sampling hole with a diameter smaller than a diameter of the pile to be driven is drilled at the center of each vertical hole and samples of a stratum at a specified depth or more are obtained, to investigate a depth of a support ground at a driving position of each pile; a survey result acquisition process in which the depth of the support ground for each pile obtained in the preliminary geological survey process is acquired by an information processing device together with position information of each pile; and a vertical hole drilling process in which a central axis of a drilling drill is aligned with the sampling hole and the vertical holes for driving the piles are drilled.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a method, system, and program for managing reaching of a bearing layer in excavation work for excavating a vertical hole in the ground in pile driving work or the like. [Background technology]

[0002] Conventionally, when constructing or rebuilding a building, a vertical hole is excavated to construct a pile foundation to support the structure. A pile driving device is used to excavate this vertical hole. For example, as disclosed in Patent Document 1, this device moves by a traveling means such as a crawler and excavates the ground using a spiral auger or the like.

[0003] In such conventional pile driving work, boring surveys and other ground investigations are not carried out for all piles, and in order to reduce costs and time, it is common to carry out ground investigations at only one location for every five piles, for example.It is considered desirable to consider the number of ground investigations (several locations) based on the "Guidelines for Designing Foundation Structures of Buildings" and "Guidelines for Ground Investigation Planning for Designing Foundations of Buildings," but in reality, this is often not done. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-71320 Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the properties of the ground often vary greatly from place to place, surveying only a few piles may mean that the ground is weak in other, unsurveyed locations. Furthermore, driving piles into unsurveyed locations may increase the risk to buildings and structures, such as subsidence or tilting of the ground, if the ground is weak.

[0006] In more detail, when conventional construction ground surveys are not conducted on all piles but are limited to a few or even several dozen locations within the planned site, the condition of the ground is not necessarily uniform throughout the entire site, and the depth and thickness of the bearing layer often do not necessarily match the results of a typical ground survey.

[0007] Furthermore, because conventional soil surveys are conducted only at limited representative locations, the design of foundation structures can be inaccurate, and it has been pointed out that the results often differ from those of the surveys when piles are actually installed. The number of soil surveys is influenced by the intentions of the designer and client, as well as the region, topography, and depth of the supporting layer, which can lead to a gap between the survey results and the actual ground conditions.

[0008] Furthermore, in order to refer to the information obtained from the above-mentioned prior ground survey in real time while the excavation work is in progress and adjust the timing of reaching the supporting ground and the excavation resistance value, the excavation equipment must be equipped with special functions, which makes the excavation equipment more complex and its operation more sophisticated, and also increases the manufacturing and operating costs of the equipment, making it inappropriate for the actual situation.

[0009] Therefore, the present invention aims to solve the above problems and provide a supporting layer reach management system, method, and program for excavation work that can efficiently and accurately measure the ground strength of all piles, minimize the risks in excavation work on non-homogeneous ground, and improve the quality and efficiency of construction. [Means for solving the problem]

[0010] In order to solve the above problem, the present invention provides a method for managing the excavation of a vertical hole in a predetermined area of ​​ground for driving piles, the method comprising: (1) A preliminary geological survey process for piles to be driven into a predetermined area, in which, prior to the excavation of the vertical hole for each pile, a sampling hole having a diameter smaller than the diameter of the pile is drilled at the center of each vertical hole, and samples of the strata at a predetermined depth or greater are obtained through a preliminary geological survey to investigate the depth of the supporting ground at the driving position of each pile; (2) a vertical hole excavation step of excavating the vertical hole for pile driving based on the sampling hole; (3) a survey result acquisition step of acquiring the depth of the supporting ground for each pile obtained in the preliminary geological survey step together with the position information of each pile by an information processing device; Including, The vertical hole excavation step includes: While drilling a vertical hole with a drilling drill, information on at least one of the drilling depth and the drilling resistance of the driving device of the drilling drill is displayed on a display device on the driving device side. Information regarding the drilling depth or drilling resistance of the driving device of the drill an excavation monitoring step of acquiring the information in real time by the information processing device by photographing the excavation site; an integrated output process of integrating information from the preliminary geological survey process of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputting the information in real time; The present invention is characterized by comprising:

[0011] The present invention also provides a system for managing work to excavate a vertical hole in the ground of a predetermined area for driving a pile, the system comprising: A survey result acquisition unit that acquires the depth of the supporting ground at the driving position of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole of each pile, together with the position information of each pile; When a vertical hole is excavated by a drill, information on at least one of the excavation depth and the excavation resistance of the driving device of the drill is displayed on a display device on the driving device side. Information regarding the drilling depth or drilling resistance of the driving device of the drill an excavation monitoring unit that acquires the information in real time in an information processing device by photographing the excavation site; an integrated output unit that integrates information on the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired by the excavation monitoring unit and outputs the integrated information in real time; It is characterized by having the following features.

[0012] Furthermore, in the present invention, in the excavation monitoring step, the excavated soil obtained at a predetermined depth while the vertical hole is being excavated and the soil obtained in the preliminary geological survey step are monitored. Sample from the sampling hole It is preferable to compare the values ​​of the two signals successively. According to this invention, by digging sampling holes and obtaining excavated soil during the preliminary geological survey process, the condition of the ground before pile driving can be visually determined in more detail, and the depth and properties of the supporting ground at the location of the pile to be driven can be accurately determined, thereby reducing risks and the danger of accidents during excavation work.

[0013] In the above invention, the depth of the supporting ground for each pile obtained in the preliminary geological survey step is acquired by an information processing device together with position information of each pile, When excavating the vertical hole, While excavating the vertical hole, information on at least one of the excavation depth and the excavation resistance is acquired in real time by the information processing device; The information on the preliminary geological survey process of the vertical hole involved in the excavation and the information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process are integrated and output in real time. 。

[0014] In the above invention, the depth of the supporting ground for each pile obtained in the preliminary geological survey step is acquired by an information processing device together with position information of each pile, When excavating the vertical hole, While excavating the vertical hole, information on at least one of the excavation depth and the excavation resistance is acquired in real time by the information processing device; The information on the preliminary geological survey process of the vertical hole involved in the excavation and the information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process are integrated and output in real time. It is preferable.

[0015] In addition, in the above invention, when monitoring excavation, Displaying information about the drilling depth or the drilling resistance in the driving device of the drilling drill on a display device on the driving device side in real time; The information displayed on the display device is photographed, and information relating to the excavation depth or the excavation resistance is acquired by the information processing device. 。

[0016] In addition, in the above invention, when monitoring excavation, Displaying information about the drilling depth or the drilling resistance in the driving device of the drilling drill on a display device on the driving device side in real time; The information displayed on the display device is photographed, and information relating to the excavation depth or the excavation resistance is acquired by the information processing device. It is preferable.

[0017] The above-described system and method according to the present invention can be realized by executing a program of the present invention written in a predetermined language on a computer. That is, an application for managing the work of excavating a vertical hole in the ground of a predetermined area for driving piles is installed in an information processing device. a survey result acquisition unit that acquires the depth of the supporting ground at the driving position of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole of each pile, together with the position information of each pile; When a vertical hole is excavated by a drill, information on at least one of the excavation depth and the excavation resistance of the driving device of the drill is displayed on a display device on the driving device side. Information regarding the drilling depth or drilling resistance of the driving device of the drill an excavation monitoring unit that acquires the data in real time in an information processing device by capturing the data; an integrated output unit that integrates information on the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired by the excavation monitoring unit and outputs the integrated information in real time; Function as.

[0018] The above-described system and method according to the present invention can be realized by executing a program of the present invention written in a predetermined language on a computer. That is, an application for managing the work of excavating a vertical hole in the ground of a predetermined area for driving piles is installed in an information processing device. a survey result acquisition unit that acquires the depth of the supporting ground at the driving position of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole of each pile, together with the position information of each pile; an excavation monitoring unit that acquires information on at least either the excavation depth or the excavation resistance in real time in the information processing device when excavating a vertical hole; an integrated output unit that integrates information from the preliminary geological survey process of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the integrated information in real time; Function as.

[0019] Such a program of the present invention can be installed in an IC chip or memory device of a portable terminal device, smartphone, wearable terminal, mobile PC or other information processing terminal, or a general-purpose computer such as a personal computer or server computer, and executed on a CPU to construct a system having the above-mentioned functions and to implement the method of the present invention.

[0020] Furthermore, the program of the present invention can be distributed, for example, via a communication line, and can be transferred as a package application that runs on a stand-alone computer by recording it on a computer-readable recording medium. Specifically, this recording medium can be recorded on a variety of recording media, including magnetic recording media such as flexible disks and cassette tapes, optical disks such as CD-ROMs and DVD-ROMs, and RAM cards. Furthermore, a computer-readable recording medium on which this program is recorded makes it possible to easily implement the above-described system and method using a general-purpose computer or a dedicated computer, and also makes it easy to store, transport, and install the program. [Effects of the Invention]

[0021] As described above, according to the present invention, it is possible to efficiently and accurately measure the ground strength of all piles, minimize the risks involved in excavation work in heterogeneous ground, and improve the quality and efficiency of construction. Furthermore, by running the application using a versatile and relatively inexpensive device such as a smartphone, it is possible to avoid increasing the complexity of equipment, thereby reducing costs, and improve the quality and efficiency of construction. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is an explanatory diagram showing an overview of a management method and management system for excavation work according to an embodiment; [Figure 2] 1 is a conceptual diagram showing the overall configuration of construction equipment according to an embodiment. [Figure 3] 1 is an explanatory diagram simply illustrating an example of the configuration of an excavation work management system according to an embodiment; [Figure 4] FIG. 2 is a block diagram showing the internal configuration of the smartphone according to the embodiment. [Figure 5] FIG. 2 is a block diagram showing the internal configuration of an operation panel mounted on the heavy machinery according to the embodiment. [Figure 6]FIG. 1 is a flowchart showing the steps of a method for managing excavation work according to an embodiment. [Figure 7] FIG. 10 is an explanatory diagram showing an overview of image output processing of a smartphone in integrated display according to an embodiment. [Figure 8] FIG. 10 is an explanatory diagram showing an overview of a management method and management system for excavation work according to a modified example. [Figure 9] FIG. 10 is an explanatory diagram showing an overview of a management method and management system for excavation work according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, with reference to the accompanying drawings, embodiments of the excavation work management method, management system, and management application according to the present invention will be described in detail. Note that the embodiments shown below are examples of devices and the like that embody the technical idea of ​​this invention, and the technical idea of ​​this invention does not limit the material, shape, structure, arrangement, etc. of each component part to those described below. Various modifications can be made to the technical idea of ​​this invention within the scope of the claims.

[0024] (Outline of excavation work) Fig. 1 is an explanatory diagram showing an overview of a method and system for managing excavation work according to an embodiment, and Fig. 2 is a conceptual diagram showing the overall configuration of construction equipment according to this embodiment. As shown in Figs. 1 and 2, in this embodiment, a vertical hole 11 is excavated in a predetermined area of ​​ground 10 to install pile foundations to support a structure when constructing or rebuilding a building. The present invention is used to manage the work of excavating this vertical hole 11.

[0025] In this embodiment, when excavating the vertical holes 11, a preliminary geological investigation step is performed in which a preliminary geological investigation such as a preliminary geological survey is carried out for all of the piles to be driven, and a vertical hole excavation step is performed in which the vertical holes 11 for driving the pile foundations are excavated using the sampling holes 12A as references. In the preliminary geological investigation step in this embodiment, for all of the piles to be driven within a predetermined volume area, a sampling hole 12A with a diameter smaller than the diameter of the pile to be driven is excavated at the center of each vertical hole 11 prior to the excavation of the vertical holes 11 for each pile, and the depth of the supporting ground at the driving position of each pile is investigated by the preliminary geological investigation to obtain samples of the strata at a predetermined depth or more.

[0026] The preliminary geological survey process is a process to investigate the geology of the foundation ground of the vertical hole where the pile will be driven prior to the excavation of the pile. Small diameter sampling holes are drilled vertically to obtain or confirm geological samples at each depth, and the strength and properties of the ground at each depth and their changes are inspected and recorded along the depth direction. This preliminary geological survey includes the following:

[0027] (a) Boring survey In a boring survey, sampling holes (boreholes) are dug in specific locations to investigate the layer structure of the ground, the soil quality of each layer, the groundwater level, the depth of the supporting ground, etc., and soil samples are taken from each layer and their strength and geology (soil quality, color, composition, chemical properties, water content, etc.) are examined.

[0028] (b) Standard Penetration Test (SPT) Standard penetration tests are tests used to evaluate the hardness and density of soil. A hammer of a specific weight is used to drive a pipe (sampler) into the ground, measuring the number of blows required for the pipe to penetrate a specific distance, and the hardness of the soil is evaluated using an N-value or other similar criteria. In this case, the hole into which the pipe is driven serves as the sampling hole. In this SPT test, the total number of blows required for the sampler to penetrate 30 cm is the N-value, which is used as an indicator of the hardness and compaction of the soil. The higher the N-value, the harder and more compact the soil is considered to be; conversely, the lower the N-value, the looser the soil is considered to be. The N-value is an important parameter that influences many ground design factors, such as the propagation characteristics of earthquake motion, the bearing capacity of foundations, and the need for ground improvement.

[0029] (c) Cone Penetration Test (CPT) Cone penetration tests measure soil quality and density by forcing a cone-shaped probe into the soil, providing a continuous profile of the soil. The hole into which the probe is driven serves as a sampling hole.

[0030] (d) Other Other methods that may be used in combination include collecting soil samples near the surface and evaluating their physical and chemical properties, or measuring the electrical resistance of the ground to evaluate the underground soil quality and moisture conditions. This preliminary geological survey process includes a survey result acquisition process in which survey result information such as the depth of the supporting ground for each pile obtained in the preliminary geological survey process is acquired together with the position information of each pile using an application on smartphone 2.

[0031] In the above-mentioned vertical hole excavation process, as shown in detail in Figure 2, a drilling bucket 92, which is a drilling drill, is suspended from a Kelly bar 91 constituting an earth drill device 90 lifted by the arm of a heavy machine 9. The drilling bucket 92 is then lowered while rotating in one direction by the Kelly bar 91, thereby excavating the hole wall 11a and bottom 11b. At this time, the fishtail at the lower end of the drilling bucket 92, which forms the central axis of the drilling drill, is aligned with the sampling hole 12A formed in the above-mentioned preliminary geological survey process, and the vertical hole 11 for pile driving is excavated.

[0032] In this vertical hole excavation process, an excavation monitoring process is carried out in which, while the vertical hole 11 is being excavated, information on at least either the excavation depth or the excavation resistance is acquired in real time on the smartphone 2. In this excavation monitoring process, real-time information including the excavation depth or the excavation resistance of the drive device of the earth drill device 90 is displayed in real time on the display 35a of the operation panel 3 of the driver's seat 93, and this real-time information is transferred from the operation panel 3 side of the heavy equipment 9 to the smartphone 2.

[0033] The signals and data acquired in real time during this drilling monitoring process include drilling depth measured by measuring how far the drill has advanced into the ground, drilling speed, torque (rotational force) measured by sensors installed in the drill, pressure on the drill tip and the entire drill, vibration, temperature, sound level, current and voltage flowing through the drill motor, drill rotation speed and rotational speed (RPM: revolutions per minute), hardness and resistance of the geology (rock, soil, etc.) where the drill is advancing, fuel level or remaining battery charge, and the inclination of the heavy equipment 9 or earth drilling device 90 detected by an acceleration sensor.

[0034] In particular, the information obtained in real time by the real-time information acquisition unit 243a includes information about soil samples collected at various depths from the ground that has been actually excavated with an earth drill. Methods for obtaining information about the actually excavated soil samples include, for example, a method for identifying the soil type (clay, sand, gravel, etc.) in real time using an in-line soil sensor attached to the tip of the drill, a method for analyzing the color and components of the soil using an optical camera or spectrometer, and a method for measuring the density and moisture content of the soil using a microwave or ultrasonic sensor.

[0035] Other methods for obtaining information about the actual excavated soil samples include estimating soil quality by measuring the resistance of a drill or testing device to the soil, measuring the metal content or electrical conductivity in the soil using an electromagnetic induction sensor, and measuring specific chemical components in the soil (e.g., salinity, acidity, etc.) using a chemical sensor. Furthermore, soil samples may be taken periodically while the drill is excavating and the soil quality may be determined visually or with an analytical device, or the various collected data mentioned above may be analyzed using AI. The above methods may be used alone or in combination.

[0036] The information about the vertical hole 11 related to the excavation and the real-time information obtained during the excavation are integrated and displayed in real time on the touch panel 22a of the smartphone 2. For example, as shown in Fig. 1, this integrated display includes graphs of recorded current values ​​such as an excavation trajectory diagram (depth and time) as well as integrated current values ​​(depth and integrated current) and instantaneous current values ​​(current value and time), and these graphs display information determined and predicted by preliminary surveys, such as the planned bearing layer depth, planned pile tip depth, and predicted geological maps of each layer, in an integrated manner so that they can be compared with real-time information.

[0037] (Drilling work management system) Next, the configuration of the management system 1 that manages the above-mentioned excavation work will be described. FIG. 3 is an explanatory diagram that simply shows an example of the configuration of the management system for excavation work according to this embodiment. As shown in the diagram, this embodiment is generally composed of an operation panel 3 mounted on the driver's seat 93 of heavy equipment 9 and a smartphone 2 that runs the management application of the present invention. The configuration of each of these devices will be described below. Note that the term "module" used in the description refers to a functional unit that is composed of hardware such as a device or equipment, software having the function thereof, or a combination of these, and that performs a predetermined operation.

[0038] (1) Operation Panel 3 5 is a block diagram showing the internal configuration of the operation panel 3 mounted on the heavy equipment 9. The operation panel 3 is an interface device that displays its operating status based on detection signals detected by various sensors provided on the heavy equipment 9. Specifically, the operation panel 3 includes a CPU 32, memory 33, an input interface 34, storage 31, an output interface 35, and a communication interface 36. In this embodiment, these devices are connected via a CPU bus 30, enabling data to be exchanged between them.

[0039] The memory 33 and storage 31 are storage devices that store data in recording media and read out the stored data in response to requests from each device, and can be configured, for example, with a hard disk drive (HDD), a solid state drive (SSD), a memory card, etc. In particular, in this embodiment, the storage 31 calculates and stores the excavation depth or excavation resistance based on detection signals D1 from the various sensors 95.

[0040] The input interface 34 is provided in the earth drill 0, motor, etc. of the heavy equipment 9, and is a module that receives detection signals from sensors that detect current values ​​and excavation resistance values, acceleration sensors that detect the inclination and vibration of the heavy equipment 9, gyro sensors, etc. The received detection signals are transmitted to the CPU 32 and processed by the OS and various applications. On the other hand, the output interface 35 is a module that outputs data calculated by the CPU 32 in the operation panel 3 or stored in the memory 33 and storage 31. In this embodiment, a display 35a and a speaker 35b are connected to the output interface 35, and can display information such as the depth of the supporting ground, excavation depth, and excavation resistance, and can output sounds such as alerts.

[0041] The communication interface 36 is a module for sending and receiving data with other communication devices, and communication methods include signal communication via a wired connection such as a USB cable, and short-range communication such as Wifi (registered trademark) and Bluetooth (registered trademark).

[0042] The CPU 32 is a device that performs various arithmetic processes required to control each unit, and by executing various programs, various functional modules are virtually constructed on the CPU 11. An OS (Operating System) is started and executed on the CPU 32, and the basic functions of the operation panel 3 are managed and controlled by this OS. Various applications can also be executed on the OS, and various functional modules are virtually constructed on the CPU by executing the OS program and various applications on the CPU 32. In this embodiment, by executing programs on the CPU 32, it is possible to calculate the excavation depth and the depth of the supporting ground from the current value and excavation resistance, generate graphics to be displayed on the display, and input information.

[0043] (2) Smartphone 2 Next, a description will be given of the internal configuration of the smartphone 2. As shown in Fig. 4, the smartphone 2 is roughly composed of a communication interface 21, an input interface 22, an output interface 23, an application execution unit 24, and a memory 25.

[0044] The communication interface 21 is a communication interface for performing data communication, and has the function of performing contactless communication such as wireless communication, and contact (wired) communication using a cable, adapter means, or the like. The input interface 22 includes devices for inputting user operations, such as a mouse, keyboard, operation buttons, and touch panel 22a, as well as a CCD camera 22b built into the smartphone 2. The output interface 23 is a device for outputting video and audio, such as a display and speaker. In particular, the output interface 23 includes a display unit 23a such as a liquid crystal display, which is superimposed on the touch panel 22a, which is the input interface.

[0045] The memory 25 is a storage device that stores the OS (Operating System), firmware, programs for various applications, other data, etc., and this memory 25 is used to transfer and store preliminary survey data, which is the result of preliminary geological surveys conducted in advance, and also to store excavation data, etc., that have been processed by the application execution unit 24.

[0046] The application execution unit 24 is a module that executes programs such as a general OS, application, browser software, etc., and is usually realized by a CPU, etc. The application execution unit 24 executes an excavation management application (program) according to the present invention, thereby realizing the excavation management method and management system of the present invention. Specifically, the application execution unit 24 executes the excavation management application (program) according to the present invention, thereby virtually constructing a display control unit 242, an excavation monitoring unit 243, and a position information acquisition unit 244.

[0047] The excavation monitoring unit 243 is a module that acquires information on at least either the excavation depth or the excavation resistance in real time on the smartphone 2 while excavating the vertical hole 11, and continuously monitors whether the current excavation depth reaches the supporting ground.In this embodiment, it has a real-time information acquisition unit 243a, a survey result acquisition unit 243b, and an integrated output unit 243c.

[0048] The survey result acquisition unit 243b is a module that acquires survey result information, such as the depth of the supporting ground at the driving position of each pile, together with the position information of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole 11 for each pile. Methods for acquiring this survey result information on the smartphone 2 include directly uploading a file that records data entered using software on a PC or the like to an application, directly connecting to the database and importing the data if the survey results are stored in a database, and acquiring the data through the API if the survey equipment or software provides a Web API.

[0049] Other methods for obtaining survey results on smartphone 2 include manually entering the survey results within the smartphone 2 application, receiving the survey results as an email attachment and importing them into the application, scanning the survey results printed on paper or in image format and converting them into text data using OCR software or the like before importing them into the application, scanning a QR code (registered trademark) or barcode if the survey results are provided and importing the data into the application, or sending the data directly to the application via Bluetooth or Wi-Fi if the survey equipment supports it.

[0050] The real-time information acquisition unit 243a is a module that acquires information on at least either the excavation depth or the excavation resistance in real time on the smartphone 2 when excavating a vertical hole, and is connected, for example, by wire or wirelessly to the operation panel 3, and receives detection signals from various sensors of the heavy equipment 9 acquired on the operation panel 3 side, or various data calculated based on those detection signals.

[0051] The signals and data acquired in real time during this drilling monitoring process include drilling depth measured by measuring how far the drill has advanced into the ground, drilling speed, torque (rotational force) measured by sensors installed in the drill, pressure on the drill tip and the entire drill, vibration, temperature, sound level, current and voltage flowing through the drill motor, drill rotation speed and rotational speed (RPM: revolutions per minute), hardness and resistance of the geology (rock, soil, etc.) where the drill is advancing, fuel level or remaining battery charge, and the inclination of the heavy equipment 9 or earth drilling device 90 detected by an acceleration sensor.

[0052] Other information obtained in real time by the real-time information acquisition unit 243a includes information about soil samples collected at various depths from the ground that has been excavated using an earth drill. Methods for acquiring information about the excavated soil samples include, for example, determining the soil type (clay, sand, gravel, etc.) in real time using an in-line soil sensor attached to the tip of the drill, analyzing the color and composition of the soil using an optical camera or spectrometer, and measuring the density and moisture content of the soil using a microwave or ultrasonic sensor.

[0053] Other methods for obtaining information about the actual excavated soil samples include estimating soil quality by measuring the resistance of a drill or testing device to the soil, measuring the metal content or electrical conductivity in the soil using an electromagnetic induction sensor, and measuring specific chemical components in the soil (e.g., salinity, acidity, etc.) using a chemical sensor. Furthermore, soil samples may be taken periodically while the drill is excavating and the soil quality may be determined visually or with an analytical device, or the various collected data mentioned above may be analyzed using AI. The above methods may be used alone or in combination.

[0054] In this embodiment, the real-time information acquisition unit 243a has a non-contact connection processing unit 243d for acquiring information from other devices such as the operation panel 3. This non-contact connection processing unit 243d is a module that acquires real-time information including the excavation depth or excavation resistance, etc., by capturing images of various information including the excavation depth or excavation resistance that is displayed on the operation panel 3 in real time.

[0055] More specifically, the contactless connection processing unit 243d acquires an image of the display of the operation panel 3 captured by an optical sensor, such as the CCD camera 22b, built into the smartphone 2. The contactless connection processing unit 243d performs preprocessing on the acquired image to improve image quality, such as noise reduction, brightness and contrast adjustment, and sharpness enhancement. The contactless connection processing unit 243d then extracts character strings from the captured image and performs optical character recognition (OCR) on text information, such as numbers and warning messages displayed on the operation panel 3. It also recognizes and analyzes the content of graphs and charts by detecting areas with specific colors and shapes and acquiring the coordinates of data points on graphs. For this analysis, the contactless connection processing unit 243d is equipped with an AI analysis function, and the extracted data is input into an AI model, which, for example, compares it with past data to detect abnormal behavior or predict specific patterns and trends.

[0056] The integrated output unit 243c is a module that integrates and outputs in real time the information of the preliminary geological survey of the vertical hole 11 involved in the excavation, acquired by the survey result acquisition unit 243b, and either the information of the excavation depth or the excavation resistance, acquired by the real-time information acquisition unit 243a. This integrated output is displayed, for example, on the touch panel 22a of the smartphone 2. For example, as shown in FIG. 1, this integrated display includes graphs of current record values ​​such as an excavation trajectory diagram (depth and time) as well as an integrated current value (depth and integrated current) and an instantaneous current value (current value and time). These graphs integrate and display information determined and predicted by the preliminary survey, such as the planned bearing layer depth, the planned pile tip depth, and a predicted map of the geology of each layer, so that they can be compared with real-time information.

[0057] The excavation monitoring unit 243 may be provided with a synchronization processing function, which may be configured to synchronize, for example, the excavation monitoring process on the smartphone 2 side with the excavation monitoring process on the management server side installed on the Internet. Specifically, the management server side transmits the results of arithmetic processing such as calculation of excavation depth and prediction of the depth of the supporting ground to the smartphone 2 side, and these arithmetic processing results are captured by the synchronization processing function, with the actual display processing and the graphic processing required for it being performed by the display control unit 242 and excavation monitoring unit 243 on the smartphone 2 side. The results of the excavation monitoring executed by the excavation monitoring unit 243 on the smartphone 2 side may be sent to the management server side via the synchronization processing function, and some or all of the arithmetic processing may be delegated to the management server side.

[0058] Furthermore, the excavation monitoring unit 243 monitors the current excavation status acquired by the real-time information acquisition unit 243a and the N-value and depth of the supporting ground based on the results of the preliminary survey acquired by the survey result acquisition unit 243b, displays the real-time excavation depth and the depth of the supporting ground based on the results of the preliminary survey so that they can be compared, and executes output to call attention, such as an alert, when the real-time excavation depth approaches the depth of the supporting ground based on the results of the preliminary survey. At this time, the synchronization processing function of the excavation monitoring unit 243 may notify the management server of the real-time excavation depth and the results of the preliminary survey, and part of the excavation monitoring processing and the contactless connection processing may be entrusted to the management server.

[0059] The location information acquisition unit 244 is a module that acquires the coordinate position of the smartphone 2, and acquires the position using a Global Positioning System (GPS) that uses artificial satellites, base station positioning using triangulation based on the radio wave strength from the base station and base station information, or Wi-Fi positioning using a database that combines the Wi-Fi SSID (Service Set ID) and radio wave conditions with longitude and latitude.

[0060] The display control unit 242 is a module that generates and controls display data to be displayed on the display unit 23a. The display data is data generated by combining graphic data, image data, text data, video data, audio data, and other data. In particular, the display data generation unit 246 according to this embodiment functions as a data generation unit that integrates the current excavation information acquired by the real-time information acquisition unit 243a and the preliminary survey results acquired and stored by the survey result acquisition unit 243b using the integration output unit 243c, and generates a graphic that allows comparison of both pieces of integrated information. The display control unit 242 also controls the graphic interface generated by the GUI control unit 242a.

[0061] The display control unit 242 can also execute control to superimpose both the real-time excavation status display data acquired and generated by the real-time information acquisition unit 243a and the preliminary survey result display data acquired and generated by the survey result acquisition unit 243b, or a selected one of them, or a portion of one of them on the other. The display unit 23a displays the real-time excavation status and the preliminary survey result according to the control of the display control unit 242.

[0062] (Management method for excavation work) By operating the system described above, the real estate transfer transaction method of the present invention can be implemented. Figure 6 is a flow diagram showing the operation of the system, i.e., the procedure of the excavation work management method, and Figure 7 is an explanatory diagram showing an overview of the image output process of a smartphone in the integrated display. Note that the processing procedure described below is merely an example, and each process may be modified as much as possible. Furthermore, steps in the processing procedure described below can be omitted, replaced, or added as appropriate depending on the embodiment.

[0063] First, the driving locations of the foundation piles are determined according to the excavation plan (S101). Then, a preliminary geological survey is conducted (S102). For all piles to be driven, a small-diameter sampling hole is drilled at the center prior to the excavation of each vertical hole. A sample of the stratum at a predetermined depth or greater is obtained to investigate the depth of the supporting ground at each pile driving location. Examples of this preliminary geological survey include boring surveys, standard penetration tests (SPTs), cone penetration tests (CPTs), and methods for collecting soil samples and evaluating their physical and chemical properties. In particular, in this embodiment, samples of the supporting ground depth at each driving location are collected and photographed when the sampling holes are drilled. The images of these photographed samples are stored in memory 25 or on a server by the survey result acquisition unit 243b, and are linked to information such as an identifier (e.g., pile number) identifying the pile to be driven, its location (e.g., coordinate position), time, and the sampling depth (excavation depth).

[0064] The information obtained in this preliminary geological survey, such as the depth of the supporting ground for each pile and the positional information of each pile, is imported into the survey result acquisition unit 243b of the smartphone 2 as survey result information in the survey result acquisition step (S103). Methods for acquiring this survey result information on the smartphone 2 include directly uploading a file recording data entered using software on a PC or the like to the application, manually entering the survey results within the smartphone 2 application, and, if the survey equipment supports a wired connection such as Bluetooth, Wi-Fi, or USB, sending data directly to the application via that connection. Based on this entered survey result information, the depth of the support plate is predicted (S104).

[0065] Next, a vertical hole excavation step (S105) is performed. At this time, the center axis of the earth drilling device 90 is aligned with the sampling hole 12A, and a vertical hole 11 for pile driving is excavated. In this vertical hole excavation step, while the vertical hole 11 is being excavated, real-time information including at least information on the excavation depth or the excavation resistance is displayed in real time on the operation panel 3 of the driver's seat 93 of the heavy equipment 9, and an excavation monitoring step is performed (S105a). In this step S105a, while the vertical hole is being excavated, excavated soil at a predetermined depth is sampled. The sampled excavated soil is photographed so that it can be seen as it is removed from the bucket. The sampled soil is linked to an identifier (e.g., pile number) identifying the pile to be driven, as well as information such as the location (e.g., coordinate position), time, and sample depth (excavation depth), and is then stored in the memory 25 by the real-time information acquisition unit 243.

[0066] Next, based on the acquired real-time information, the drilling depth and drilling resistance are calculated (S105b) and compared with the results of the preliminary survey (S105c).The signals and data that can be acquired in real time include the drilling depth by measuring how far the drill has advanced into the ground, the drilling speed, torque (rotational force), the pressure on the drill tip and the entire drill, vibration, temperature, sound level, the current and voltage flowing to the drill motor, the drill rotation speed and rotational speed (RPM: revolutions per minute), the hardness and resistance of the geology (rock, soil, etc.) where the drill is advancing, and the fuel level or remaining battery charge.

[0067] In particular, the information obtained in real time by the real-time information acquisition unit 243a includes information about soil samples at various depths obtained from the ground that has actually been excavated with an earth drill. Methods for obtaining information about the actually excavated soil samples include, for example, a method for identifying the soil type (clay, sand, gravel, etc.) in real time using an in-line soil sensor attached to the tip of the drill, a method for analyzing the color and components of the soil using an optical camera or spectrometer, and a method for measuring the density and moisture content of the soil using a microwave or ultrasonic sensor.

[0068] Other methods for obtaining information about the actual excavated soil samples include estimating soil quality by measuring the resistance of a drill or testing device to the soil, measuring the metal content or electrical conductivity in the soil using an electromagnetic induction sensor, and measuring specific chemical components in the soil (e.g., salinity, acidity, etc.) using a chemical sensor. Furthermore, soil samples may be taken periodically while the drill is excavating and the soil quality may be determined visually or with an analytical device, or the various data collected as described above may be analyzed using AI. The above methods may be used alone or in combination.

[0069] If the comparison in step S105c indicates that the supporting ground is approaching ("Y" in step S105d), an alert output process is executed (S105e). If the supporting ground is not approaching ("N" in step S105d), an integrated output display is executed (S105f) without executing the alert output process. In this integrated output, the information from the preliminary geological survey and real-time information (excavation depth or excavation resistance) acquired during excavation monitoring are displayed on the touch panel 22a of the smartphone 2 so that they can be compared. In this embodiment, as shown in FIG. 7, an image W1 of sample soil taken during the preliminary survey of the vertical hole to be excavated and an image W2 of the excavated soil acquired during the excavation monitoring process are displayed so that they can be compared sequentially. At this time, an image is captured that shows the condition of the excavated soil along with information such as an identifier (e.g., pile number) identifying the pile to be driven, its location (e.g., coordinate position), time, and sampling depth (excavation depth). The above process is repeated for all piles, with preliminary surveys being carried out for each pile first ("N" in step S106), and construction is completed once all piles have been driven.

[0070] (Actions and Effects) According to the present embodiment described above, it is possible to efficiently and accurately measure the ground strength of all piles, minimize the risks involved in excavation work in heterogeneous ground, and improve the quality and efficiency of construction. Furthermore, by executing the application using a versatile and relatively inexpensive device such as a smartphone, it is possible to improve the quality and efficiency of construction while avoiding the need for complicated equipment and achieving cost reductions. In particular, in this embodiment, excavated soil is collected from sampling holes during the preliminary geological survey process and visually compared with the excavated soil collected from the bucket drill during excavation, making it possible to accurately determine the depth and properties of the supporting ground at the location of the pile to be driven, thereby reducing risks and the risk of accidents during excavation work.

[0071] Specifically, in this embodiment, by investigating the depth and properties of the bearing layer (supporting ground) in advance through a preliminary ground survey, uncertainty about the bearing layer can be resolved in advance, and risks can be avoided if the bearing layer is shallower or deeper than expected. In particular, if the bearing layer is too shallow, the foundation may become unstable, and if it is too deep, the piles may not reach the foundation. By predicting these in advance, the accuracy of driving each pile can be improved. Furthermore, by understanding the properties and strength of the ground through a preliminary survey, it is possible to confirm subsidence, the presence of water veins or gas, and heterogeneous ground. This information can be used to optimize the excavation plan and prevent problems and accidents during excavation.

[0072] Furthermore, in this embodiment, the contactless connection processing unit 243d uses the CCD camera 22b built into the smartphone 2 to capture an image of the display of the operation panel 3 and analyze the image, thereby recognizing and analyzing the contents of the numerical values, warning messages, graphs, and charts displayed on the operation panel 3, and therefore, can instantly acquire information from the operation panel 3 as digital data. In this case, unlike wired connections using cables or wireless communications such as short-range communications, no physical connection or specific interface or protocol is required, and information can be acquired from a variety of operation panels and displays, including those that do not have an interface for connecting to other devices.

[0073] (Example of change) The above-described embodiment is merely an example of the present invention. Therefore, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design, etc., as long as they do not deviate from the technical concept of the present invention. For example, as shown in Figure 8, excavation management may be performed based only on the results of a preliminary survey, without using real-time information acquired by the earth drill machine.

[0074] In this case, too, the preliminary survey involves drilling a sampling hole at the central axis of the driving pile, aligning the central axis of the drill with the sampling hole, and drilling a vertical hole for driving the pile. This preliminary survey may involve a boring survey or standard penetration test on all piles, or it may involve boring surveys on the piles at the four corners of a specified area, and one boring survey on the remaining piles for a specified number, taking into consideration a balance. The preliminary survey may involve selectively conducting a boring survey or standard penetration test on all piles, or it may involve a combination of multiple survey methods, such as conducting a boring survey at a specified reference position on the site and then conducting a standard penetration test on the pile installation area.

[0075] In this modified example, the results of the preliminary survey are input into a management application running on the smartphone 2, and the depth to the foundation ground predicted based on the input preliminary survey results is displayed in the application.After actual excavation using the earth drill begins, real-time information, such as the elapsed time of excavation and the excavation progress of the earth drill (depth, drill rotation speed), is periodically input to execute the integrated output process.

[0076] As a result, according to this modified example, since there is no need to acquire or analyze real-time information, the system configuration is simpler, and design, implementation, and maintenance are easier, reducing the costs of introducing and maintaining the advanced sensors, communication equipment, analysis software, and other devices required for data acquisition and analysis.

[0077] Furthermore, in the above-described embodiment, a preliminary survey was conducted on all piles, but the number of piles to be surveyed and the type of survey method can be changed as appropriate. For example, as shown in Figure 9, depending on the conditions, such as when the state of the supporting layer is known in advance, a boring survey or standard penetration test can be conducted on piles at the four corners of a specified area, and for other piles, one survey can be conducted at one location for each specified number, taking into consideration the overall balance.

[0078] It should be noted that the embodiments of the present invention are merely illustrative and the present invention is not limited to these embodiments. Various modifications and improvements are possible within the scope of the present invention, and these are also included in the present invention. [Explanation of symbols]

[0079] 1. Management system 2. Smartphone 3...Operation panel 9...Heavy machinery 10…Ground 11...Vertical hole 11a…hole wall 11b...bottom 12A...Sampling hole 21...Communication interface 22...Input interface 22a...Touch panel 22b...CCD camera 23...Output interface 23a...Display section 24...Application execution unit 25…Memory 30...CPU bus 31...Storage 32...CPU 33...Memory 34...Input interface 35...Output interface 35a...Display 35b...Speaker 36...Communication interface 90...Earth drill device 91...Kelly Bar 92...Digging bucket 93...Driver's seat 242...Display control unit 242a...GUI control section 243...Drilling Monitoring Unit 243a...Real-time information acquisition unit 243b…Survey Results Acquisition Division 243c...Integrated output section 243d...Contactless connection processing section 244...Location information acquisition unit 246...Display data generation unit

Claims

1. 1. A method for managing bearing layer access in the excavation of a vertical hole in a predetermined area of ​​ground for driving piles, comprising: a preliminary geological survey process in which, prior to the excavation of the vertical hole for each pile, a sampling hole having a diameter smaller than the diameter of the pile is drilled at the center of each vertical hole, and samples of the stratum at a predetermined depth or greater are obtained by a preliminary geological survey to investigate the depth of the supporting ground at the driving position of each pile; A vertical hole excavation process of excavating the vertical hole for pile driving based on the sampling hole; a survey result acquisition step of acquiring the depth of the supporting ground for each pile obtained in the preliminary geological survey step together with position information of each pile by an information processing device; Including, The vertical hole excavation step includes: a drilling monitoring step of acquiring information on at least one of the drilling depth and the drilling resistance of the driving device of the drilling drill in real time by the information processing device while drilling a vertical hole with the drilling drill by photographing the information on the drilling depth or the drilling resistance of the driving device of the drilling drill displayed on a display device on the driving device side; an integrated output process of integrating information from the preliminary geological survey process of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputting the information in real time; Contains A method for managing reaching of a supporting layer in excavation work.

2. A method for managing the reaching of supporting layers during excavation work, as described in claim 1, characterized in that in the excavation monitoring process, while excavating the vertical hole, the excavated soil obtained at a predetermined depth is sequentially compared with the sample of the sampling hole obtained in the preliminary geological survey process.

3. A system for managing the excavation of a vertical hole in a predetermined area of ​​ground for driving piles, comprising: A survey result acquisition unit that acquires the depth of the supporting ground at the driving position of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole of each pile, together with the position information of each pile; a drilling monitoring unit that, when drilling a vertical hole with a drilling drill, acquires information on at least one of the drilling depth and the drilling resistance of the drive device of the drilling drill in real time in an information processing device by photographing information on the drilling depth or the drilling resistance of the drive device of the drilling drill displayed on a display device on the drive device side; an integrated output unit that integrates information on the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired by the excavation monitoring unit and outputs the integrated information in real time; A support layer reaching control system for excavation work, characterized by comprising:

4. The support layer reach management system for excavation work described in claim 3, characterized in that the excavation monitoring unit outputs the excavated soil obtained at a predetermined depth when excavating the vertical hole so that it can be sequentially compared with the sample of the sampling hole obtained in the preliminary geological survey.

5. An application for managing work of excavating a vertical hole in the ground of a predetermined area in order to drive a pile, the application comprising: a survey result acquisition unit that acquires the depth of the supporting ground at the driving position of each pile, obtained by a preliminary geological survey conducted prior to the excavation of the vertical hole of each pile, together with the position information of each pile; a drilling monitoring unit that, when drilling a vertical hole with a drilling drill, acquires information on at least one of the drilling depth and the drilling resistance of the drive device of the drilling drill in real time in an information processing device by photographing information on the drilling depth or the drilling resistance of the drive device of the drilling drill displayed on a display device on the drive device side; an integrated output unit that integrates information on the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance acquired by the excavation monitoring unit and outputs the integrated information in real time; and a support layer reach management application for drilling operations, the support layer reach management application being characterized by:

6. The support layer reach management application for excavation work described in claim 5, characterized in that the excavation monitoring unit outputs the excavated soil obtained at a predetermined depth when excavating the vertical hole so that it can be sequentially compared with the sample of the sampling hole obtained in the preliminary geological survey.

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