System, method, and program for support layer arrival management in 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 a bearing layer in excavation work for excavating a vertical hole in the ground for 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 the 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 performed for all piles, and in order to reduce costs and time, it is common to conduct 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 Soil Investigation Planning for Foundation Design of Buildings," but in reality, this is often not done. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-71320 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the nature of the ground often varies greatly from place to place, surveying only some of the 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, 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 several dozen locations on the planned site, the condition of the ground is not necessarily uniform throughout the entire site, and the emergence depth and thickness of the supporting layer often do not necessarily match the results of a representative ground survey.

[0007] In addition, because conventional ground surveys are only conducted at a limited number of 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 survey when piles are actually constructed. The number of ground surveys 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.

[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. This makes the excavation equipment more complex and its operation more sophisticated, and also increases the costs of manufacturing and operating the equipment, which is not suited to real-world situations.

[0009] Therefore, the present invention aims to solve the above-mentioned problems and to 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 relates to a method for managing the excavation of a vertical hole in a given area of ​​ground for driving piles, comprising: (1) A preliminary geological survey process for investigating the depth of the supporting ground at the driving position of each pile by drilling a sampling hole having a diameter smaller than the diameter of the pile at the center position of each vertical hole prior to the excavation of the vertical hole of each pile, and obtaining samples of the strata at a predetermined depth or more; (2) a vertical hole excavation step of aligning the central axis of a drilling drill with the sampling hole to excavate the vertical hole for pile driving; The present invention is characterized by comprising:

[0011] The present invention also provides a system for managing an operation of excavating a vertical hole in a ground of a predetermined area for driving a pile, 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; an excavation monitoring unit that acquires information on at least one of an excavation depth and an excavation resistance in real time in the information processing device when excavating a vertical hole; an integrated output unit that integrates information on the preliminary geological survey process of the vertical hole related to the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the information in real time; The device is characterized by the following:

[0012] According to these inventions, a preliminary geological survey is carried out for all piles to be driven within a specified volume area, prior to the excavation of vertical holes for each pile, to obtain samples of strata at a specified depth or above. This provides a basic framework for improving the efficiency and accuracy of excavation work, and by integrating data from the ground survey with data during excavation, highly accurate excavation is possible, saving costs and time.

[0013] Furthermore, the present invention relates to a method for managing the excavation of a vertical hole in a given area of ​​ground for driving piles, a preliminary geological survey step of performing a preliminary geological survey for each pile to be driven into a predetermined area, in which a sampling hole having a diameter smaller than the diameter of the pile is drilled at the center of each vertical hole prior to the drilling of the vertical hole for each pile, and a sample of the depth of the supporting ground at the driving position of each pile is obtained; A vertical hole excavation process of excavating the vertical hole for pile driving based on the sampling hole where the preliminary geological survey has been completed; an excavation monitoring step of acquiring excavated soil at a predetermined depth while excavating the vertical hole; an excavation monitoring step of sequentially comparing the excavated soil acquired in the preliminary geological survey step of the vertical hole related to the excavation with the excavated soil acquired in the excavation monitoring step; The present invention is characterized in that the present invention performs operations including: According to this invention, by digging sampling holes and obtaining excavated soil in the preliminary geological survey process, the condition of the ground before driving the piles can be visually observed in more detail, and the depth and properties of the supporting ground at the position of the pile to be driven can be accurately known, thereby reducing risks and the danger of accidents during excavation work.

[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 related to 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 preferred.

[0015] In this case, the information measured by the drilling drilling equipment such as an earth drill and the information of the preliminary geological survey carried out in advance are integrated and output by an information processing device such as a smartphone, thereby making it possible to visualize the information required for excavation. As a result, according to the present invention, the discrepancy between the ground survey and the excavation work can be reduced, and by using a mobile device, information can be obtained immediately on-site and necessary adjustments can be made quickly. In addition, by using the information of the preliminary geological survey obtained in advance, the depth of the supporting ground and the change in the N value during the excavation process can be predicted, and by integrating this prediction with the actual excavation data, unexpected problems and delays can be minimized.

[0016] In addition, in the above invention, when monitoring excavation, Displaying information on the drilling depth or the drilling resistance in a driving device of the drilling drill in real time on a display device on the driving device side; 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 preferred.

[0017] In this case, for example, drilling depth and drilling resistance can be read with a smartphone camera from a display installed in the cockpit of an earth drill or other drilling equipment, and analyzed by AI, making it possible to easily obtain drilling information without the need for special output interfaces or cable connections. In addition, the analytical capabilities of AI can be used to further improve the efficiency and accuracy of drilling work, and simplify work by eliminating the need for complicated operations between the drilling machine and information processing equipment.

[0018] The above-mentioned system and method according to the present invention can be realized by executing the 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 a pile 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 one of an excavation depth and an excavation resistance in real time in the information processing device when excavating a vertical hole; An integrated output unit that integrates information on the preliminary geological survey process of the vertical hole related to the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the 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 each of the functions described above and implement the method of the present invention.

[0020] The program of the present invention can be distributed, for example, through 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, the recording medium can be a magnetic recording medium such as a flexible disk or cassette tape, an optical disk such as a CD-ROM or DVD-ROM, or a RAM card. The computer-readable recording medium on which the program is recorded makes it possible to easily implement the above-mentioned system and method using a general-purpose computer or a dedicated computer, and also makes it easy to store, transport, and install the program. Effect 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 on non-homogeneous ground, and improve the quality and efficiency of construction. In addition, 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 complication of equipment and reducing costs. [Brief description 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; [Diagram 2] 1 is a conceptual diagram showing an overall configuration of a construction facility according to an embodiment. [Diagram 3] 1 is an explanatory diagram illustrating a simplified configuration example of a management system for excavation work according to an embodiment; [Figure 4] FIG. 2 is a block diagram showing an internal configuration of the smartphone according to the embodiment. [Diagram 5] 2 is a block diagram showing the internal configuration of an operation panel mounted on the heavy machinery according to the embodiment. FIG. [Figure 6] FIG. 2 is a flow chart showing the steps of a method for managing excavation work according to the embodiment. [Figure 7] 11 is an explanatory diagram showing an overview of an image output process of a smartphone in integrated display according to an embodiment; FIG. [Figure 8] FIG. 13 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. 13 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 PREFERRED EMBODIMENTS

[0023] Hereinafter, the embodiments of the excavation work management method, management system, and management application according to the present invention will be described in detail with reference to the accompanying drawings. Note that the embodiments shown below are examples of devices for embodying the technical idea of ​​this invention, and the technical idea of ​​this invention does not specify the material, shape, structure, arrangement, etc. of each component part as described below. The technical idea of ​​this invention can be modified in various ways within the scope of the claims.

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

[0025] In this embodiment, when excavating the vertical hole 11, a preliminary geological investigation process is performed in which a preliminary geological investigation such as a preliminary geological investigation is carried out for all piles to be driven, and a vertical hole excavation process is performed in which the vertical hole 11 for driving the pile foundation is excavated based on the sampling hole 12A. In the preliminary geological investigation process in this embodiment, for all piles to be driven within a predetermined volume area, a sampling hole 12A having 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 hole 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 that obtains samples of the stratum 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, geological samples are obtained or confirmed 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. The 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 to evaluate the hardness and density of soil. A hammer of a certain weight is used to drive a pipe (sampler) into the soil, and the number of blows required for the pipe to travel a certain distance is measured, and the hardness of the soil is evaluated using the N-value. In this case, the hole into which the pipe is driven becomes 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 index of the hardness and compaction of the soil. The larger the N-value, the harder and tighter the soil is considered to be, and conversely, the smaller the N-value, the looser the soil is considered to be. The N-value is an important parameter that affects 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 type and density by forcing a cone-shaped probe into the soil, providing a continuous profile of the soil, with the hole into which the probe is driven becoming the sampling hole.

[0030] (d) Other Other methods that may be used in combination include taking 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 by an application on the smartphone 2.

[0031] In the above-mentioned vertical hole excavation step, as shown in detail in Fig. 2, a drilling bucket 92, which is a drilling drill, is suspended by 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 rotated in one direction and lowered by the Kelly bar 91 to excavate the hole wall 11a and bottom 11b. At this time, the fishtail at the lower end of the drilling bucket 92, which is the central axis of the drilling drill, is aligned with the sampling hole 12A formed in the above-mentioned preliminary geological survey step to excavate the vertical hole 11 for driving piles.

[0032] In this vertical hole excavation process, an excavation monitoring process is performed 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 driving 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 obtained in real time during this drilling monitoring process include drilling depth by measuring how far the drill has gone into the ground, drilling speed, torque (rotational force) measured by a sensor installed in the drill, pressure on the tip of the drill and the entire drill, vibration, temperature, sound level, current and voltage flowing to 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 on soil samples at each depth that are actually collected from the ground excavated by an earth drill. Methods for acquiring information on 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 water content of the soil using a microwave / ultrasonic sensor.

[0035] Other methods for acquiring information about the actual excavated soil samples include estimating the soil quality by measuring the resistance of a drill or an inspection 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 described above may be analyzed by AI. The above methods may be used alone or in combination.

[0036] The information on 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 current record values ​​such as an excavation trajectory diagram (depth and time), an integral current value (depth and integral current), and an instantaneous current value (current value and time), and these graphs include information determined and predicted by a preliminary survey, such as the planned bearing layer depth, the planned pile tip depth, and a predicted map of the geology of each layer, and are displayed in an integrated manner so as to be compared with the real-time information.

[0037] (Drilling operation 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 showing a simplified example of the configuration of the management system for excavation work according to this embodiment. As shown in the figure, in this embodiment, the system 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, 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 state based on detection signals detected by various sensors provided on the heavy equipment 9. Specifically, the operation panel 3 includes a CPU 32, a memory 33, an input interface 34, a storage 31, an output interface 35, and a communication interface 36. In this embodiment, these devices are connected via a CPU bus 30, and are capable of transferring data between them.

[0039] The memory 33 and the storage 31 are storage devices that accumulate data in a recording medium and read out the accumulated data in response to a request 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 accumulates the excavation depth or excavation resistance based on the detection signals D1 from the various sensors 95.

[0040] 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., and the received detection signals are transmitted to the CPU 32 and processed by the OS and each application. 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 information such as the depth of the supporting ground, the excavation depth, and the excavation resistance can be displayed, and sounds such as alerts can be output.

[0041] The communication interface 36 is a module for transmitting 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 processing required for controlling each part, and executes various programs to virtually construct various functional modules 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. In addition, various applications can be executed on this 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 a program 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.

[0044] The communication interface 21 is a communication interface for performing data communication, and has a function of performing non-contact communication by radio or the like, and contact (wired) communication by a cable, adapter means, or the like. The input interface 22 includes devices for inputting user operations, such as a mouse, a keyboard, operation buttons, and a 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 a speaker. In particular, the output interface 23 includes a display unit 23a such as a liquid crystal display, and this display unit is superimposed on the touch panel 22a, which is an input interface.

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

[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. In this application execution unit 24, an excavation management method and management system of the present invention can be realized by executing an excavation management application (program) of the present invention. Specifically, by executing the excavation management application (program) of the present invention in the application execution unit 24, a display control unit 242, an excavation monitoring unit 243, and a position information acquisition unit 244 are virtually constructed.

[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, the excavation monitoring unit 243 has a real-time information acquisition unit 243a, an investigation 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, obtained by a preliminary geological survey carried out prior to the excavation of the vertical hole 11 for each pile, together with the position information of each pile. Methods for acquiring this survey result information on the smartphone 2 include a method of directly uploading a file that records data entered using software such as a PC to an application, a method of directly connecting to a database and importing data when the survey result is stored in the database, and a method of acquiring data through a Web API provided by the survey equipment or software.

[0049] Other methods for obtaining the survey results on smartphone 2 include manually entering the survey results within an application on smartphone 2, 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, and 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 at least information on either the excavation depth or the excavation resistance in real time on the smartphone 2 when excavating a vertical hole, and is, for example, 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 on the operation panel 3 side, or various data calculated based on the detection signals.

[0051] The signals and data obtained in real time during this drilling monitoring process include drilling depth by measuring how far the drill has gone into the ground, drilling speed, torque (rotational force) measured by a sensor installed in the drill, pressure on the tip of the drill and the entire drill, vibration, temperature, sound level, current and voltage flowing to 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 on soil samples taken at each depth from the ground actually excavated by an earth drill. Methods for acquiring information on 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 water content of the soil using a microwave / ultrasonic sensor.

[0053] Other methods for acquiring information about the actual excavated soil samples include estimating the soil quality by measuring the resistance of a drill or an inspection 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 described above may be analyzed by 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 by photographing various information including the excavation depth or excavation resistance displayed in real time on the operation panel 3.

[0055] More specifically, the non-contact 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 non-contact connection processing unit 243d performs pre-processing on the acquired image to improve image quality, such as removing noise from the image, adjusting brightness and contrast, and enhancing sharpness, extracts character strings from the captured image, and performs OCR (Optical Character Recognition) on text information such as numbers and warning messages displayed on the operation panel 3, as well as detecting areas with specific colors and shapes and acquiring the coordinates of data points on the graph to recognize and analyze the contents of graphs and charts. For this analysis, the non-contact connection processing unit 243d has an analysis function using AI, and the extracted data is input into an AI model, which makes it possible to, for example, detect abnormal movements by comparing with past data and 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 section of the vertical hole 11 related to the excavation acquired by the survey result acquisition unit 243b and the information of either 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), an integral current value (depth and integral current), and an instantaneous current value (current value and time), and these graphs include information determined and predicted by the preliminary survey, such as the planned bearing layer depth, the planned pile tip depth, and a forecast diagram of the geology of each layer, which are integrated and displayed so as to be compared with real-time information.

[0057] The excavation monitoring unit 243 may be provided with a synchronization processing function, which may 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 the excavation depth and prediction of the depth of the supporting ground to the smartphone 2 side, and the arithmetic results are captured by the synchronization processing function, and the actual display processing and the graphic processing therefor are executed by the display control unit 242 and the 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 through the synchronization processing function, and part or all of the arithmetic processing may be delegated to the management server.

[0058] The excavation monitoring unit 243 also monitors the current excavation state acquired by the real-time information acquisition unit 243a and the N-value and the depth of the supporting ground 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 depth of the supporting ground based on the results of the preliminary survey in a comparable manner, and when the real-time excavation depth approaches the depth of the supporting ground based on the results of the preliminary survey, executes output to call attention, such as an alert. 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 non-contact 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 signal strength from the base station and base station information, and Wi-Fi positioning using a database that combines the Wi-Fi SSID (Service Set ID) and signal 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, character 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 results of the preliminary survey acquired and held by the survey result acquisition unit 243b, and generates the integrated information as a graphic that can be compared. 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 display 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 part of one of them, superimposed 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 above-described system, the real estate transfer transaction method of the present invention can be implemented. FIG. 6 is a flow diagram showing the operation of the system, i.e., the procedure of the excavation work management method, and FIG. 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 changed as much as possible. Also, steps of 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 set according to the excavation plan (S101), and then a preliminary geological survey is carried out (S102). Here, for all piles to be driven, a small-diameter sampling hole is drilled at the center prior to the drilling of the vertical hole of each pile, and a sample of the stratum at a predetermined depth or more is obtained, and the depth of the supporting ground at the driving location of each pile is surveyed. This preliminary geological survey includes boring surveys, standard penetration tests (SPT), cone penetration tests (CPT), and methods of collecting soil samples and evaluating their physical and chemical properties. In particular, in this embodiment, samples of the supporting ground depth at the driving location collected when the sampling hole is drilled are collected, photographed, and stored. The images of the photographed samples are stored in the memory 25 or the server by the survey result acquisition unit 243b, linked to information such as an identifier (pile number, etc.) that identifies the pile to be driven, a location (coordinate position, etc.), a time, and a sampling depth (drilling 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 as survey result information into the survey result acquisition unit 243b of the smartphone 2 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 in software such as a PC to an application, manually entering the survey results in the smartphone 2 application, and sending data directly to the application via a wired connection such as Bluetooth, Wi-Fi, or USB if the survey device supports such a 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 drill device 90 is aligned with the sampling hole 12A to excavate a vertical hole 11 for pile driving. In this vertical hole excavation step, while the vertical hole 11 is being excavated, real-time information including at least information on either 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 in which the real-time information acquisition unit 243a of the smartphone 2 acquires the real-time information while excavating the vertical hole (S105a). In this step S105a, while excavating the vertical hole, an operation is performed to collect excavated soil at a predetermined depth. The collected excavated soil is photographed so that the state of being taken out of the bucket can be seen, and is linked to information such as an identifier (pile number, etc.) that identifies the pile to be driven, a location (coordinate position, etc.), a time, and a collection depth (excavation depth), and is 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 through 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 advances, the fuel level or remaining battery power, etc.

[0067] In particular, the information obtained in real time by the real-time information acquisition unit 243a includes information on soil samples at each depth obtained from the ground actually excavated by an earth drill. Methods for obtaining information on the actually excavated soil samples include, for example, a method for determining 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 water content of the soil using a microwave / ultrasonic sensor.

[0068] Other methods for obtaining information about the actually excavated soil samples include estimating the soil quality by measuring the resistance of a drill or an inspection 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 described above may be analyzed by AI. The above methods may be used alone or in combination.

[0069] As a result of the comparison in step S105c, if the supporting ground is approaching ("Y" in step S105d), an alert output process is executed (S105e), and 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 of the preliminary geological survey and the real-time information (excavation depth or excavation resistance) acquired by the excavation monitoring are displayed on the touch panel 22a of the smartphone 2 so as to be compared. In this embodiment, as shown in FIG. 7, an image W1 of the sample soil taken in the preliminary survey of the vertical hole related to the excavation and an image W2 of the excavated soil taken in the excavation monitoring process are displayed so as to be sequentially compared. At this time, an image is taken so that the state of the excavated soil can be understood together with information such as an identifier (pile number, etc.) that identifies the pile to be driven, a location (coordinate position, etc.), a time, and a collection depth (excavation depth). The above process is repeated for all piles, with preliminary surveys being carried out on each pile first ("N" in step S106), and the construction is completed once all piles have been driven.

[0070] (Action and effect) 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 on non-homogeneous ground, and improve the quality and efficiency of construction. In addition, 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 complication of equipment and achieving cost reduction. In particular, in this embodiment, excavated soil is collected from sampling holes in the preliminary geological survey process and visually compared with the excavated soil collected from the bucket drill during excavation, making it possible to accurately know the depth and properties of the supporting ground at the position of the pile to be driven, thereby reducing risks and the danger of accidents during excavation work.

[0071] Specifically, in this embodiment, by investigating the depth and properties of the supporting layer (supporting ground) in advance by a preliminary ground survey, the uncertainty of the supporting layer can be eliminated in advance, and the risk of the supporting layer being shallower or deeper than expected can be avoided. 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 foundation. By predicting these in advance, the accuracy of driving each pile can be improved. In addition, by understanding the properties and strength of the ground through a preliminary survey, it is possible to confirm subsidence, the presence of water veins and gas, and heterogeneous ground, and the information can be used to optimize the excavation plan and prevent problems and accidents during excavation.

[0072] In this embodiment, the non-contact connection processing unit 243d captures an image of the display of the operation panel 3 with 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, so that the information of the operation panel 3 can be instantly acquired as digital data. At this time, unlike wired connection by cable or wireless communication such as short-distance communication, no physical connection or specific interface or protocol is required, and it is possible to acquire information from various operation panels and displays, such as operation panels 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 according to the design and the like within the scope of the technical idea of ​​the present invention. For example, as shown in FIG. 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, the preliminary survey also 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 drilling a vertical hole for driving the pile. This preliminary survey may involve a boring survey or a standard penetration test for all piles, or a boring survey may be conducted for piles at the four corners of a specified area, and one boring survey may be conducted for the remaining piles, taking into consideration the balance. The preliminary survey may involve selectively conducting a boring survey or a standard penetration test for all piles, or a combination of multiple survey methods may be used, such as conducting a boring survey at a specified reference position within the site and conducting a standard penetration test for the pile construction section.

[0075] In this modified example, the results of the preliminary survey are input into a management application executed 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 has begun, 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, thereby executing an 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 simplified, and design, implementation, and maintenance are easier, thereby reducing the costs of introducing and maintaining advanced sensors, communication devices, analysis software, and the like required for acquiring and analyzing data.

[0077] Furthermore, in the above embodiment, a preliminary survey was conducted for 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 Fig. 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 may be conducted for piles at the four corners of a specified area, and for other piles, one survey may be conducted at one location for a 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 without departing from 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 unit 243…Drilling Monitoring Division 243a…Real-time information acquisition section 243b…Survey Results Acquisition Division 243c...Integrated output section 243d…Non-contact connection processing section 244...Location information acquisition unit 246...Display data generation unit

Claims

1. 1. A method for controlling the reaching of a bearing layer in an operation for excavating a vertical hole in a given area of ​​ground for driving piles, comprising: a preliminary geological survey process for surveying the depth of the supporting ground at the driving position of each pile by drilling a sampling hole having a diameter smaller than the diameter of the pile at the center position of each vertical hole prior to the drilling of the vertical hole of each pile and obtaining a sample of the stratum at a predetermined depth or more; a vertical hole excavation step of aligning a central axis of a drilling drill with the sampling hole to excavate the vertical hole for pile driving; A method for managing reaching of a supporting layer in an excavation operation, comprising:

2. The method further includes 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: an excavation monitoring step of acquiring information on at least one of an excavation depth and an excavation resistance in real time by the information processing device while excavating the vertical hole; an integrated output process for integrating information on the preliminary geological survey process of the vertical hole related to 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; 2. The method for managing reaching of a supporting layer in an excavation operation according to claim 1, further comprising:

3. 1. A method for managing the excavation of a vertical hole in a given area of ​​ground for driving piles, comprising: a preliminary geological survey step of performing a preliminary geological survey for each pile to be driven into a predetermined area, in which a sampling hole having a diameter smaller than the diameter of the pile is drilled at the center of each vertical hole prior to the drilling of the vertical hole for each pile, and a sample of the depth of the supporting ground at the driving position of each pile is obtained; A vertical hole excavation process of excavating the vertical hole for pile driving based on the sampling hole where the preliminary geological survey has been completed; an excavation monitoring step of acquiring excavated soil at a predetermined depth while excavating the vertical hole; an excavation monitoring step of sequentially comparing the excavated soil acquired in the preliminary geological survey step of the vertical hole related to the excavation with the excavated soil acquired in the excavation monitoring step; A method for managing reaching of a supporting layer in an excavation operation, comprising:

4. In the excavation monitoring step, Displaying information on the drilling depth or the drilling resistance in a driving device of the drilling drill in real time on a display device on the driving device side; 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.

4. A method for managing reaching of a supporting layer in an excavation operation according to claim 2 or 3.

5. A system for managing the excavation of a vertical hole in a given 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; an excavation monitoring unit that acquires information on at least one of an excavation depth and an excavation resistance in real time in the information processing device when excavating a vertical hole; an integrated output unit that integrates information on the preliminary geological survey process of the vertical hole related to the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the information in real time; A support layer reaching control system for excavation work, comprising:

6. A system for managing the excavation of a vertical hole in a given 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; an excavation monitoring unit that acquires information on at least one of an excavation depth and an excavation resistance in real time in the information processing device when excavating a vertical hole; an integrated output unit that integrates information on the preliminary geological survey process of the vertical hole related to the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the information in real time; A support layer reaching control system for excavation work, comprising:

7. A system for managing the excavation of a vertical hole in a given area of ​​ground for driving piles, comprising: a survey result acquisition unit that performs a preliminary geological survey to acquire samples of the depth of the supporting ground at the driving position of each pile by drilling a sampling hole having a diameter smaller than the diameter of the pile at the center position of each vertical hole prior to the drilling of the vertical hole of each pile to be driven into the predetermined volume area; An excavation monitoring unit that acquires information about excavated soil at a predetermined depth when excavating the vertical hole; an excavation monitoring unit that outputs information about the excavated soil acquired in the preliminary geological survey step of the vertical hole involved in the excavation so as to be able to sequentially compare information about the excavated soil acquired in the excavation monitoring step; A support layer reach control system for excavation operations, comprising:

8. The excavation monitoring unit has a function of acquiring information regarding the excavation depth or the excavation resistance with the information processing device by photographing information regarding the excavation depth or the excavation resistance displayed in real time on a display device on the driving device side. A support layer reach control system for excavation work according to any one of claims 5 to 7.

9. An application for managing an operation of excavating a vertical hole in a 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; an excavation monitoring unit that acquires information on at least one of an excavation depth and an excavation resistance in real time in the information processing device when excavating a vertical hole; An integrated output unit that integrates information on the preliminary geological survey process of the vertical hole related to the excavation and information on either the excavation depth or the excavation resistance acquired in the excavation monitoring process and outputs the information in real time. The present invention relates to an application for managing support layer reach in an excavation operation.

10. An application for managing an operation of excavating a vertical hole in a ground of a predetermined area in order to drive a pile, the application comprising: a survey result acquisition unit that performs a preliminary geological survey to acquire samples of the depth of the supporting ground at the driving position of each pile by drilling a sampling hole having a diameter smaller than the diameter of the pile at the center position of each vertical hole prior to the drilling of the vertical hole of each pile to be driven into the predetermined volume area; an excavation monitoring unit that acquires information about excavated soil at a predetermined depth when excavating the vertical hole; an excavation monitoring unit that outputs information about the excavated soil acquired in the preliminary geological survey step of the vertical hole involved in the excavation so as to be able to sequentially compare information about the excavated soil acquired in the excavation monitoring step; A support layer reach management application in an excavation operation, comprising:

11. The excavation monitoring unit has a function of acquiring information regarding the excavation depth or the excavation resistance with the information processing device by photographing information regarding the excavation depth or the excavation resistance displayed in real time on a display device on the driving device side.

12. The application for managing reaching a support layer in an excavation operation according to claim 10 or 11.

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