JP7804288B2 - Support layer reach management system, method and program for excavation work - Google Patents

Description

The present invention relates to a method, system, and program for managing the reaching of a bearing layer during excavation work to excavate a vertical hole in the ground, such as for driving piles.

Conventionally, when constructing or rebuilding a building, a vertical hole is excavated to construct pile foundations to support the structure. A pile driving device is used to excavate this vertical hole. As disclosed in Patent Document 1, for example, this device moves using a crawler or other traveling means and excavates the ground using a spiral auger or similar.

In conventional pile driving work like this, boring surveys and other ground investigations are not carried out for every pile; to reduce costs and time, it is common for ground investigations to be carried out 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 in Buildings" and "Guidelines for Planning Ground Investigations for Foundation Design in Buildings," but in reality, this is often not done.

JP 2018-71320 A

However, because the properties of the ground often vary greatly from place to place, if surveys are conducted using only some piles, the ground may be weak in other, unsurveyed locations. Furthermore, if piles are driven into unsurveyed locations and the ground is weak, this could increase the risk to buildings and structures, such as subsidence or tilting of the ground.

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 on the planned site, the ground conditions are not necessarily uniform across the entire site, and the depth and thickness of the bearing layer often do not necessarily match the results of a typical ground survey.

In addition, because traditional soil surveys are only conducted in a limited number of representative locations, there is a risk that the design of foundation structures may 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 conducted depends on the intentions of the designer and client, and is also influenced by the region, topography, and depth of the supporting layer, which can lead to a gap between the survey results and the actual ground conditions.

Furthermore, in order to refer to the information obtained from the above-mentioned preliminary 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 would have to be equipped with specialized functions, which would make the excavation equipment more complex and its operation more sophisticated, as well as raising the costs of manufacturing and operating the equipment, making it inappropriate for real-world situations.

The present invention aims to solve the above problems by providing a system, method, and program for managing bearing layer reach during excavation work that can efficiently and accurately measure ground strength for all piles, minimize the risks involved in excavation work in heterogeneous ground, and improve the quality and efficiency of construction.

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,
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;
It is characterized by including an integrated output process 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 obtained in the excavation monitoring process and outputs the information in real time.

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;
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;
It is characterized by having an integrated output unit that integrates information from the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or excavation resistance obtained by the excavation monitoring unit and outputs the information in real time.

Furthermore, in the present invention, in the excavation monitoring process, while the vertical hole is being excavated, it is preferable to sequentially compare the excavated soil obtained at a predetermined depth with the sample from the sampling hole obtained in the preliminary geological survey process.
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.

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 from the preliminary geological survey process for the vertical hole involved in the excavation and the information on either the excavation depth or the excavation resistance obtained in the excavation monitoring process are integrated and output in real time .

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;
It is preferable to integrate 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 obtained in the excavation monitoring process and output the integrated information in real time.

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;
By photographing the information displayed on the display device, the information processing device acquires information relating to the excavation depth or the excavation resistance .

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;
It is preferable that the information displayed on the display device is photographed, and the information relating to the excavation depth or the excavation resistance is acquired by the information processing device.

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;
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;
It functions as an integrated output unit that integrates information from the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or excavation resistance obtained by the excavation monitoring unit and outputs the information in real time.

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;
It functions as an integrated output unit that integrates information from the preliminary geological survey process for the vertical hole involved in the excavation and information on either the excavation depth or the excavation resistance obtained in the excavation monitoring process and outputs the information in real time.

The program of the present invention can be installed on 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 the CPU to construct a system having the above-mentioned functions and implement the method of the present invention.

The program of the present invention can be distributed, for example, via communications lines, and can be transferred as a packaged application that runs on a stand-alone computer by recording it on a computer-readable recording medium. Specifically, this recording medium can be a magnetic recording medium such as a flexible disk or cassette tape, or an optical disk such as a CD-ROM or DVD-ROM, or a RAM card, among other recording media. 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.

As described above, the present invention makes it possible to efficiently and accurately measure the ground strength of all piles, minimizing the risks involved in excavation work in heterogeneous ground and improving the quality and efficiency of construction. Furthermore, by running the application using a highly versatile and relatively inexpensive device such as a smartphone, it is possible to avoid increasing the complexity of equipment, reducing costs, while improving the quality and efficiency of construction.

1 is an explanatory diagram showing an overview of a management method and management system for excavation work according to an embodiment; 1 is a conceptual diagram showing the overall configuration of construction equipment according to an embodiment. 1 is an explanatory diagram simply illustrating an example of the configuration of an excavation work management system according to an embodiment; FIG. 2 is a block diagram showing the internal configuration of the smartphone according to the embodiment. FIG. 2 is a block diagram showing the internal configuration of an operation panel mounted on the heavy machinery according to the embodiment. FIG. 1 is a flowchart showing the steps of a method for managing excavation work according to an embodiment. FIG. 10 is an explanatory diagram showing an overview of image output processing of a smartphone in integrated display according to an embodiment. FIG. 10 is an explanatory diagram showing an overview of a management method and management system for excavation work according to a modified example. FIG. 10 is an explanatory diagram showing an overview of a management method and management system for excavation work according to a modified example.

Embodiments of the excavation work management method, management system, and management application according to the present invention will be described in detail below with reference to the accompanying drawings. Note that the embodiments shown below are examples of devices that embody the technical concept of this invention, and the technical concept of this invention does not limit the materials, shapes, structures, arrangements, etc. of each component part to those described below. The technical concept of this invention may be modified in various ways within the scope of the claims.

(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.

In this embodiment, when excavating the vertical holes 11, a preliminary geological investigation process is carried out, in which a preliminary geological survey, such as a preliminary geological survey, is conducted for all piles to be driven, and a vertical hole excavation process is carried out, in which vertical holes 11 for driving pile foundations are excavated using sampling holes 12A as reference points. In the preliminary geological investigation process in this embodiment, for all 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. The depth of the supporting ground at the driving position of each pile is investigated through the preliminary geological investigation, which obtains samples of the strata at a predetermined depth or greater.

The preliminary geological survey process involves investigating the geology of the foundation ground for the vertical hole where the pile will be driven prior to the pile excavation. 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, as well as any changes in these properties, are inspected and recorded along the depth direction. Examples of this preliminary geological survey include the following:

(a) Boring survey Boring surveys involve digging sampling holes (boreholes) at 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 taking soil samples from each layer to examine the strength and geology (soil quality, color, composition, chemical properties, water content, etc.) of the soil samples.

(b) Standard Penetration Test (SPT)
Standard penetration tests (SPTs) 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. The hardness of the soil is evaluated using an N-value or other similar test. 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 seismic motion propagation characteristics, foundation bearing capacity, and the need for ground improvement.

(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.

(d) Others As other methods, methods such as 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 may be used in combination.
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.

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 that constitutes an earth drill device 90 lifted by the arm of heavy equipment 9. The Kelly bar 91 then rotates the drilling bucket 92 in one direction while lowering it, excavating the hole wall 11a and bottom 11b. At this time, the fishtail at the bottom 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 preliminary geological survey process described above, and the vertical hole 11 for pile driving is excavated.

During this vertical hole excavation process, an excavation monitoring process is carried out in which information on at least either the excavation depth or the excavation resistance is acquired in real time on the smartphone 2 while the vertical hole 11 is being excavated. During this excavation monitoring process, real-time information including the excavation depth or excavation resistance of the drive unit 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 of the heavy equipment 9 to the smartphone 2.

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, vibration, temperature, sound level acting on the drill tip and the entire drill, current and voltage flowing through the drill motor, drill rotation speed and rotational frequency (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.

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 actually been excavated with an earth drill. Methods for obtaining information about these actually excavated soil samples include, for example, determining the soil type (clay, sand, gravel, etc.) in real time using an inline 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.

Other methods for obtaining information about the actual excavated soil samples include estimating the 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 can be taken periodically while the drill is excavating and the soil quality can be determined visually or with an analytical device, or the various collected data mentioned above can be analyzed using AI. These methods can be used alone or in combination.

The information about the vertical hole 11 related to the excavation and the real-time information obtained during excavation are integrated and displayed in real time on the touch panel 22a of the smartphone 2. For example, as shown in Figure 1, this integrated display includes a diagram of the excavation trajectory (depth and time), as well as graphs of recorded current values such as integrated current values (depth and integrated current) and instantaneous current values (current value and time). These graphs also display information determined and predicted from preliminary surveys, such as the planned bearing layer depth, planned pile tip depth, and predicted geological maps of each layer, integrated and comparable to real-time information.

(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 configuration of the management system for excavation work according to this embodiment. As shown in the figure, this embodiment is generally composed of an operation panel 3 mounted on the driver's seat 93 of the heavy equipment 9 and a smartphone 2 on which the management application of the present invention is executed. 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.

(1) Operation panel 3
5 is a block diagram showing the internal configuration of the operation panel 3 mounted on the heavy machine 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 machine 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.

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

The input interface 34 is provided in the earth drill 0 or motor 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 speaker 35b are connected to the output interface 35, and information such as the depth of the supporting ground, excavation depth, and excavation resistance can be displayed, and sounds such as alerts can be output.

The communication interface 36 is a module that sends and receives data to and from other communication devices. Communication methods include signal communication via a wired connection such as a USB cable, and short-range communication such as Wi-Fi (registered trademark) and Bluetooth (registered trademark).

The CPU 32 is a device that performs various arithmetic processes required to control each part, and by executing various programs, various functional modules are virtually constructed on the CPU 11. The 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.

(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 generally composed of a communication interface 21, an input interface 22, an output interface 23, an application execution unit 24, and a memory 25.

The communication interface 21 is a communication interface for data communication, and is equipped with functions for contactless communication such as wireless communication, and contact (wired) communication using a cable, adapter, or other means. 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 an LCD display, which is superimposed on the touch panel 22a, which is the input interface.

Memory 25 is a storage device that stores the OS (Operating System), firmware, various application programs, and other data. Preliminary survey data, which is the result of a preliminary geological survey conducted in advance, is transferred and stored in this memory 25, and excavation data processed by the application execution unit 24 is also stored.

The application execution unit 24 is a module that executes programs such as general OSs, applications, and browser software, and is typically implemented by a CPU or the like. 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 location information acquisition unit 244.

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 the vertical hole 11 is being excavated, 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.

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, obtained from a preliminary geological survey conducted prior to the excavation of the vertical hole 11 for each pile, along with the position information of each pile. 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 an application, directly connecting to a database if the survey results are stored therein and importing the data, and acquiring the data through a web API if the survey equipment or software provides one.

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 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 device supports it.

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. For example, it is connected to the operation panel 3 via a wired or wireless connection and receives detection signals from various sensors of the heavy equipment 9 acquired by the operation panel 3, or various data calculated based on those detection signals.

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, vibration, temperature, sound level acting on the drill tip and the entire drill, current and voltage flowing through the drill motor, drill rotation speed and rotational frequency (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.

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 actually been excavated with an earth drill. Methods for obtaining information about these actually 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.

Other methods for obtaining information about the actual excavated soil samples include estimating the 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 can be taken periodically while the drill is excavating and the soil quality can be determined visually or with an analytical device, or the various collected data mentioned above can be analyzed using AI. These methods can be used alone or in combination.

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 excavation depth or excavation resistance, by capturing images of various information, including excavation depth or excavation resistance, displayed in real time on the operation panel 3.

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 removing noise, adjusting brightness and contrast, and enhancing sharpness. It 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.

The integrated output unit 243c is a module that integrates and outputs in real time information from the preliminary geological survey unit of the vertical hole 11 involved in the excavation, acquired by the survey result acquisition unit 243b, and either information on the excavation depth or 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 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). These graphs integrate and display information determined and predicted by the preliminary survey, such as the planned bearing layer depth, planned pile tip depth, and predicted geological maps of each layer, so that they can be compared with real-time information.

The excavation monitoring unit 243 can be provided with a synchronization processing function, which may, for example, synchronize the excavation monitoring processing on the smartphone 2 with the excavation monitoring processing on a management server installed on the Internet. Specifically, the management server transmits the results of calculations such as calculation of excavation depth and prediction of the depth of the supporting ground to the smartphone 2, and these calculation results are imported using the synchronization processing function, with the actual display processing and the associated graphic processing being performed by the display control unit 242 and excavation monitoring unit 243 on the smartphone 2. The results of the excavation monitoring performed by the excavation monitoring unit 243 on the smartphone 2 may be sent to the management server via the synchronization processing function, and some or all of the calculation processing may be delegated to the management server.

The excavation monitoring unit 243 also monitors the current excavation status acquired by the real-time information acquisition unit 243a and the N-value and supporting ground depth based on the results of the preliminary survey acquired by the survey result acquisition unit 243b, and displays the real-time excavation depth and the supporting ground depth based on the results of the preliminary survey so that they can be compared. When the real-time excavation depth approaches the supporting ground depth based on the results of the preliminary survey, it also outputs an alert or other warning. 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 some of the excavation monitoring processing and contactless connection processing may be delegated to the management server.

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 signal 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 signal conditions with longitude and latitude.

The display control unit 242 is a module that generates and controls display data to be displayed on the display unit 23a. 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 in 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.

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 243a displays the real-time excavation status and the preliminary survey result in accordance with the control of the display control unit 242.

(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 for managing excavation work, 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.

First, the installation locations for the foundation piles are determined according to the excavation plan (S101). Then, a preliminary geological survey is conducted (S102). For all piles to be installed, 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, and the depth of the supporting ground at each pile installation location is investigated. This preliminary geological survey includes 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 the installation location, collected when the sampling holes are drilled, are photographed and saved. 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 installed, its location (e.g., coordinate position), time, and extraction depth (excavation depth).

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 process (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 an application, manually entering the survey results within the smartphone 2 application, or, if the survey equipment supports wired connections 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).

Next, the vertical hole excavation process (S105) is carried out. At this time, the center axis of the earth drill device 90 is aligned with the sampling hole 12A, and a vertical hole 11 for pile driving is excavated. During this vertical hole excavation process, while the vertical hole 11 is being excavated, real-time information including at least information on the excavation depth or 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 process is carried out (S105a). In this step S105a, while the vertical hole is being excavated, excavated soil is sampled at a predetermined depth. 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 memory 25 by the real-time information acquisition unit 243.

Next, the drilling depth and drilling resistance are calculated based on the acquired real-time information (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 through the drill motor, the drill's rotation speed and rotational frequency (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.

In particular, the information obtained in real time by the real-time information acquisition unit 243a includes information about soil samples obtained at various depths from the ground that has actually been excavated with an earth drill. Methods for obtaining information about this actually excavated soil sample include, for example, determining the soil type (clay, sand, gravel, etc.) in real time using an inline 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.

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

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 without executing the alert output process (S105f). In this integrated output, the information from the preliminary geological survey and real-time information (excavation depth or excavation resistance) obtained during excavation monitoring are displayed on the touch panel 22a of the smartphone 2 for comparison. 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 obtained during the excavation monitoring process are displayed for sequential comparison. 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 of each pile being carried out first ("N" in step S106), and construction is completed once all piles have been driven.

(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.

Specifically, in this embodiment, by investigating the depth and properties of the supporting layer (supporting ground) in advance through a preliminary ground survey, uncertainty about the supporting layer can be resolved in advance, and risks can be avoided if the supporting layer is shallower or deeper than expected. In particular, if the supporting layer is too shallow, the foundation may become unstable, and if it is too deep, the piles may not reach the required depth. 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 excavation plans and prevent problems and accidents during excavation.

In addition, in this embodiment, the contactless connection processing unit 243d captures an image of the display of the operation panel 3 using the CCD camera 22b built into the smartphone 2 and analyzes the image to recognize and analyze the contents of the numerical values, warning messages, graphs, and charts displayed on the operation panel 3, thereby enabling the information on the operation panel 3 to be instantly acquired as digital data. This does not require a physical connection or a specific interface or protocol, such as a wired connection using a cable or wireless communication such as short-range communication, and is compatible with operation panels that do not have an interface for connecting to other devices, making it possible to acquire information from a variety of operation panels and displays.

(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.

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 drilling drill with the sampling hole, and excavating a vertical hole for driving the pile. This preliminary survey may involve conducting a boring survey or standard penetration test on all piles, or it may involve conducting a boring survey on piles at the four corners of a designated area, and then conducting a boring survey on the remaining piles at one location for each designated number, taking into consideration a balance. The preliminary survey may also 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 designated reference positions on the site and then conducting a standard penetration test on the pile installation section.

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

As a result, this modified example does not require the acquisition or analysis of real-time information, simplifying the system configuration and facilitating design, implementation, and maintenance, while reducing the costs of introducing and maintaining the advanced sensors, communication equipment, and analysis software required for data acquisition and analysis.

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, a survey can be conducted at one location for each specified number, taking into account the overall balance.

Please note that the embodiments of this invention are illustrative only, and the present invention is not limited to these embodiments. Various modifications and improvements are possible without departing from the spirit of the present invention, and these are also included in the present invention.

DESCRIPTION OF SYMBOLS 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 unit 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: Excavation bucket 93: Driver's seat 242: Display control unit 242a: GUI control unit 243: Excavation monitoring unit 243a: Real-time information acquisition unit 243b: Survey result acquisition unit 243c: Integrated output unit 243d: Non-contact connection processing unit 244: Position information acquisition unit 246: Display data generation unit

Claims (6)

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;
and 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,
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;
A method for managing reaching of supporting layers during excavation work, characterized by including an integrated output process 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 excavation resistance obtained in the excavation monitoring process and outputs the information in real time. 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. 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;
A support layer reach management system for excavation work, characterized by having an integrated output unit that integrates information from the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or excavation resistance obtained by the excavation monitoring unit and outputs the information in real time. 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. 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;
A support layer reach management application for excavation work, characterized in that it functions as an integrated output unit that integrates information from the preliminary geological survey of the vertical hole involved in the excavation and information on either the excavation depth or excavation resistance obtained by the excavation monitoring unit and outputs it in real time. 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.