Hole wall measurement report creation system and hole wall measurement report creation program

Abstract

An object of the present invention is to provide a borehole wall measurement form creation system and a borehole wall measurement form creation program that can create a form without taking time from the measurement results of the shape of the wall surface of an excavation hole (borehole wall). 【Solution means】In the borehole wall measurement form creation system 1, the image processing calculation unit 33 depicts the contour of the concrete pile on the graph image based on the pile shape information input from the input means 31 and the graph image acquired by the image acquisition means 32. Then, the output means 34 outputs, as electronic data, a form in which the graph image and the contour of the concrete pile depicted on the graph image by the image processing calculation unit 33 are described.

Description

Technical Field

[0001] The present invention relates to a borehole wall measurement form creation system and a borehole wall measurement form creation program.

Background Art

[0002] In order to appropriately construct cast-in-place concrete piles, it is necessary to confirm whether the shape of the bored hole for cast-in-place concrete pile construction conforms to the design values. Therefore, various measuring devices for measuring the shape of the wall surface (borehole wall) of the bored hole have been proposed. For example, Patent Document 1 proposes a measuring device that can visually confirm the shape of the wall surface of a deep hole (bored hole) for cast-in-place concrete pile construction as an image of a three-dimensional surface.

[0003] The measuring device described in Patent Document 1 includes a vibrator that oscillates ultrasonic vibrations against the wall surface of the deep hole while rotating horizontally and receives the reflected waves. Each time the vibrator makes one rotation, the position of the vibrator is raised or lowered along the vertical direction to measure the shape of the bored hole. Then, the transmitted wave and received wave of the vibrator, and the position signals in the horizontal rotation direction and depth direction of the vibrator are synthetically processed by a processing device to obtain and record information on the shape of the wall surface of the deep hole, and the shape of the three-dimensional surface of the wall surface is represented as a three-dimensional image on a monitor TV, so that the shape of the wall surface can be visually confirmed.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, at actual construction sites, as a measuring device for measuring the shape of the wall surface (hole wall) of an excavation hole, it is rare to use a device that outputs measurement results as a three-dimensional video like the above-described measuring device. Instead, many devices that output measurement results as graphs on thermal paper are still widely used. Also, during the construction of an excavation hole, not only the shape of the wall surface of the excavation hole needs to be confirmed, but also the outline of a concrete pile based on design values is depicted on the graph that is the measurement result of the shape of the wall surface. Additionally, information such as the inclination amount of the excavation hole calculated by analyzing the measurement results needs to be entered, and a form needs to be created to produce a construction report.

[0006] Therefore, an operator analyzes and calculates information about the excavation hole (for example, the inclination amount of the excavation hole, etc.) from the output measurement results, and copies the thermal paper output as a measurement result onto ordinary paper using a printing machine such as a printer. Then, the outline of the concrete pile based on design values and the above-described information about the excavation hole are handwritten on this copied measurement result to create a form. As a result, a lot of working time is allocated for form creation, and improvement of work efficiency is desired.

[0007] Therefore, the purpose is to provide a hole wall measurement form creation system and a hole wall measurement form creation program that can create a form without much effort from the measurement results of the shape of the wall surface (hole wall) of an excavation hole.

Means for Solving the Problem

[0008] The hole wall measurement form creation system according to the present invention is for creating a form for a construction report of a cast-in-place concrete pile, and includes an input means capable of inputting pile shape information, which is information regarding the design value of the concrete pile constructed in the excavation hole and the construction record value of the excavation hole; an image acquisition means for acquiring an image of a graph showing the measurement result of the shape of the wall surface of the excavation hole; an image processing calculation unit capable of depicting the outline of the concrete pile on the image of the graph based on the pile shape information and the image of the graph; and an output means for outputting, as electronic data, a form on which the graph and the outline of the concrete pile are described.

[0009] The hole wall measurement form creation system according to the present invention is characterized in that an image acquisition means acquires an image of a graph obtained by photographing thermal paper on which a graph is recorded, an image processing calculation unit detects the graph by performing image recognition processing on the image of the graph, and causes a display means to display an image of the graph in which scanning pins related to the coordinate system of the graph are arranged, and receives corrections of the length, inclination, and position of the scanning pins displayed on the display means from an input means, and acquires the coordinate system of the graph based on the length, inclination, and position of the scanning pins.

[0010] The hole wall measurement form creation system according to the present invention includes a first scanning pin arranged corresponding to the upper end of the graph, having a length corresponding to the width of the graph, and an inclination corresponding to the inclination of the graph, and a second scanning pin arranged corresponding to the lower end of the graph, the interval between the second scanning pin and the first scanning pin corresponding to the length from the upper end to the lower end of the graph. The image processing calculation unit specifies the width of the graph from the length of the first scanning pin, specifies the inclination of the graph from the inclination of the first scanning pin, and specifies the length from the upper end to the lower end of the graph from the positions of the first scanning pin and the second scanning pin, and acquires the coordinate system of the graph.

[0011] The hole wall measurement form creation system according to the present invention is characterized in that the graph shows the measurement result by a measuring device that measures the shape of the hole wall while moving vertically in the excavation hole, and the scanning pin includes a third scanning pin corresponding to a speed switching position that is a position where the moving speed of the measuring device is switched. The image processing calculation unit specifies the speed switching position from the position of the third scanning pin and corrects the coordinate system of the graph.

[0012] The hole wall measurement report creation system of the present invention is characterized in that the expanded bottom portion formed at the tip of the borehole has a raised portion with the longest diameter at the lower end, the image acquisition means acquires an image of the graph by photographing thermal paper on which the graph is recorded, the image processing calculation unit detects the position of the hole wall at the raised portion by image recognition processing of the graph image, displays an image of the graph on the display means with a fourth scanning pin positioned corresponding to this hole wall position, and accepts corrections to the position of the fourth scanning pin displayed on the display means from the input means, and calculates the actual radius of the raised portion based on the distance from the position of the fourth scanning pin to the central axis of the graph.

[0013] The hole wall measurement report creation system of the present invention is characterized in that the image processing calculation unit calculates the pile inclination based on the inclination amount calculated from the pile shape information and the actual radius of the rising part, and the output means is capable of outputting a report on which the pile inclination is recorded.

[0014] The hole wall measurement report creation program of the present invention is for creating a report for reporting the construction of cast-in-place concrete piles, and is characterized in that it causes a computer to execute the following steps: an input procedure for inputting pile shape information, which is information regarding the design values of the concrete pile to be constructed in the borehole and the construction record values of the borehole; an image acquisition procedure for acquiring an image of a graph showing the measurement results of the hole wall shape of the borehole; an image processing calculation procedure for depicting the outline of the concrete pile on the image of the graph based on the pile shape information and the image of the graph; and an output procedure for outputting a report containing the graph and the outline of the concrete pile as electronic data. [Effects of the Invention]

[0015] The hole wall measurement report creation system of the present invention is for creating a report for construction reports on cast-in-place concrete piles, and includes input means for inputting pile shape information, which is information regarding the design values of the concrete pile to be constructed in the borehole and the construction record values of the borehole, image acquisition means for acquiring an image of a graph showing the measurement results of the hole wall shape of the borehole, an image processing calculation unit for depicting the outline of the concrete pile on the image of the graph based on the pile shape information and the image of the graph, and output means for outputting a report containing the graph and the outline of the concrete pile as electronic data. Therefore, by inputting the pile shape information from the input means and causing the image acquisition means to acquire an image of the graph showing the measurement results of the hole wall shape of the borehole, a report in which the outline of the concrete pile is depicted on the graph showing the measurement results can be automatically created and output as electronic data. In this way, if a graph showing the measurement results of the hole wall shape is output on thermal paper, the worker can photograph the graph using an imaging device such as a camera, record it as an image, and have the image acquired by the image acquisition device.Also, if a graph showing the measurement results of the hole wall shape is output as an image, the worker can have the image acquired directly by the image acquisition device, thereby automatically creating and outputting a report in which the outline of the concrete pile is written on the graph.This reduces the time required to create the report and saves work time compared to the conventional report creation method in which the outline of the concrete pile is written by hand on a graph.In addition, there is no need to copy the thermal paper onto regular paper, and the created report is output as electronic data, making it possible to create and record reports paperlessly.

[0016] The hole wall measurement form creation system according to the present invention includes an image acquisition unit that acquires an image of a graph obtained by photographing thermal paper on which a graph is recorded, an image processing calculation unit that detects the graph by performing image recognition processing on the graph image, and causes a display unit to display an image of the graph with scanning pins arranged in the coordinate system of the graph. The system also receives, from an input unit, corrections to the length, inclination, and position of the scanning pins displayed on the display unit, and acquires the coordinate system of the graph based on the length, inclination, and position of the scanning pins. Therefore, even when the coordinate system of the graph detected by the image processing calculation unit needs to be corrected, the coordinate system of the graph can be corrected by correcting the length, inclination, and position of the scanning pins.

[0017] The hole wall measurement form creation system according to the present invention includes a first scanning pin arranged corresponding to the upper end of the graph, having a length corresponding to the width of the graph, and an inclination corresponding to the inclination of the graph, and a second scanning pin arranged corresponding to the lower end of the graph, with the interval between the first scanning pin corresponding to the length from the upper end to the lower end of the graph. The image processing calculation unit specifies the width of the graph from the length of the first scanning pin, specifies the inclination of the graph from the inclination of the first scanning pin, and specifies the length from the upper end to the lower end of the graph from the positions of the first scanning pin and the second scanning pin, thereby acquiring the coordinate system of the graph. By doing so, when the coordinate system of the graph needs to be corrected, the image processing calculation unit can be made to acquire an accurate coordinate system of the graph simply by correcting the length and inclination of the first scanning pin and the positions of the first and second scanning pins to match the outer edge of the graph. Therefore, it becomes easier to correct the coordinate system of the graph.

[0018] The borehole wall measurement form creation system according to the present invention is such that a graph shows the measurement results by a measuring device that measures the shape of the borehole wall while moving vertically along the inside of the drilled hole, a scanning pin includes a third scanning pin corresponding to a speed switching position which is a position where the moving speed of the measuring device is switched, and an image processing calculation unit specifies the speed switching position from the position of the third scanning pin and corrects the coordinate system of the graph. Therefore, even when the moving speed moving vertically during measurement is changed and the coordinate system changes in the middle of the graph, the image processing calculation unit can accurately specify the speed change position from the position of the third scanning pin and correct the coordinate system of the graph based on this speed change position. Accordingly, the image processing calculation unit can accurately acquire the coordinate system of the graph and accurately depict the contour of the concrete pile according to the coordinate system.

[0019] The borehole wall measurement form creation system according to the present invention is such that the enlarged bottom portion formed at the tip of the drilled hole has a rising portion with the longest diameter at the lower end portion, an image acquisition means acquires an image of the graph obtained by photographing a thermal paper on which the graph is recorded, an image processing calculation unit detects the position of the borehole wall in the rising portion by image recognition processing on the graph image, causes a display means to display a graph image in which a fourth scanning pin corresponding to the position of this borehole wall is arranged, receives correction of the position of the fourth scanning pin displayed on the display means from an input means, and calculates the radius of the actual dimension of the rising portion based on the distance from the position of the fourth scanning pin to the central axis of the graph. Therefore, the image processing calculation unit can automatically calculate the radius of the actual dimension in the rising portion of the enlarged bottom portion. Accordingly, since it is not necessary for the operator to calculate the radius of the actual dimension of the rising portion by analyzing the graph, the form creation time can be shortened and the work time can be reduced.

[0020] The borehole wall measurement form creation system according to the present invention is such that an image processing calculation unit calculates the pile inclination based on the inclination amount calculated from the pile shape information and the radius of the actual dimension of the rising portion, and an output means can output a form on which the pile inclination is described. Therefore, the pile inclination can be automatically calculated and a form on which this inclination amount is described can be output. Accordingly, since it is not necessary for the operator to calculate the pile inclination by analyzing the graph, the form creation time can be shortened and the work time can be reduced.

[0021] The hole wall measurement report creation program of the present invention is for creating a report for a construction report of a cast-in-place concrete pile, and causes a computer to execute the following steps: an input procedure for inputting pile shape information, which is information on the design values of the concrete pile to be constructed in the borehole and the construction record values of the borehole; an image acquisition procedure for acquiring an image of a graph showing the measurement results of the hole wall shape of the borehole; an image processing calculation procedure for depicting the outline of the concrete pile on the image of the graph based on the pile shape information and the image of the graph; and an output procedure for outputting a report containing the graph and the outline of the concrete pile as electronic data. Therefore, the same effects as those of the hole wall measurement report creation system described above can be achieved. [Brief description of the drawings]

[0022]

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Embodiments for Carrying Out the Invention

[0023] Hereinafter, a hole wall measurement document creation system according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing the schematic configuration of the hole wall measurement document creation system 1. The hole wall measurement document creation system 1 automatically creates a document 100 (FIG. 2) for reporting the construction of a cast-in-place concrete pile and outputs it as electronic data. The document 100 is used to record the shape of the borehole 10, such as the shape of the hole wall 11 of the borehole 10 shown in FIG. 3, and is used for reports, etc. Therefore, the document 100 contains an image of a graph 110 showing the measurement results obtained by a measuring device 20 (FIG. 3) that measures the shape of the hole wall 11, an outline 120 of the concrete pile (not shown) drawn by the hole wall measurement document creation system 1, and other information about the borehole 10 and the concrete pile. The concrete pile is constructed by pouring concrete into the borehole 10 after construction. Furthermore, the graph 110 of the document 100 shown in Figure 2 is actually a photographed image of the graph 110 recorded on thermal paper shown in Figure 4, but in the drawings referred to in the following explanation (except Figure 4), all images of the graph 110 are shown as simplified schematic diagrams.

[0024] Regarding the information on the bored holes 10 and concrete piles described in the form 100 (Fig. 2) (hereinafter, the "information on the bored holes 10 and concrete piles" is referred to as the "information on the bored holes 10 etc."), for example, above the images of the graphs 110 (graphs 110a and 110b) of the form 100, there are the pile numbers (pile NO.) and pile symbols, measurement dates, and measurers, which are the sorting numbers of the bored holes 10 (concrete piles) for each construction site. Also, in the form 100, as information on the bored holes 10 etc., there are design values for each part of the bored holes 10 (concrete piles), for example, the head diameter D0 which is the diameter of the head 10A (Fig. 3) of the bored hole 10 (concrete pile), the shaft diameter D1 which is the diameter of the shaft part 10B of the bored hole 10 (concrete pile), the bottom diameter D2 which is the diameter of the rising part 10D at the lower end of the enlarged bottom part 10C of the bored hole 10 (concrete pile), and further, the boring length D indicating the depth of the bored hole 10 is described. Here, the enlarged bottom part 10C is a part formed in an inverted taper shape downward at the tip (lower end) of the bored hole 10. Also, the rising part 10D at the lower end of the enlarged bottom part 10C is formed as a cylindrical part with a longer diameter than other parts of the enlarged bottom part 10C and the diameter of the enlarged bottom part 10C is the longest. Note that the design values for each part of the bored holes 10 (concrete piles) described above are based on the pile shape information described later.

[0025] Also, in the form 100, as information on the bored holes 10 etc., below the images of the graphs 110 (graphs 110a and 110b) of the form 100, there are the design diameter D4 which is the radius of the design value of the rising part 10D calculated from the bottom diameter D2, the actual dimension radii r1, r2, r3, r4 of the rising part 10D, the inclination amounts Lx, Ly of the bored hole 10 (concrete pile), the combined inclination amount L, and the pile inclination θp. Among these, the design diameter D4 of the rising part 10D, the actual dimension radii r1, r2, r3, r4 of the rising part 10D, the inclination amounts Lx, Ly, the combined inclination amount L, and the pile inclination θp are calculated by the hole wall measurement form creation system 1.

[0026] As shown in Fig. 3, the measuring device 20 includes an ultrasonic sensor 21 that outputs ultrasonic waves to the hole wall 11 and receives the reflected waves, and measures the shape of the hole wall 11 of the excavation hole 10 using this ultrasonic sensor 21. Specifically, the measuring device 20 is installed on a base 22 provided so as to straddle the opening 10E of the excavation hole 10, the ultrasonic sensor 21 is suspended in the excavation hole 10, and while the ultrasonic sensor 21 is horizontally rotated, the shape of the hole wall 11 is measured. Further, the measuring device 20 measures the shape of the hole wall 11 of the entire excavation hole 10 while gradually moving (lowering or raising) the ultrasonic sensor 21 along the vertical direction VD from the height position of the ground G to the deepest part 10F which is the lower end of the excavation hole 10. Then, when the measurement of the entire excavation hole 10 is completed, the measuring device 20 outputs heat-sensitive paper on which a graph 110 showing the measurement result of the shape of the hole wall 11 is recorded. Fig. 4 is an example of the heat-sensitive paper (graph 110) output from the measuring device 20, and Fig. 5 is a schematic diagram simplified from the heat-sensitive paper (graph 110) output from the measuring device 20 for explaining the graph 110. Note that the graph 110 shown in Fig. 4 is merely a sample, and the shape of the shadow 111 showing the shape of the hole wall 11 is different from that shown in drawings other than Fig. 4.

[0027] As shown in FIGS. 4 and 5, on graph 110, a shadow 111 showing the shape of the hole wall 11 is recorded as a measurement result by the measuring device 20. Also, on graph 110, there is a graph 110a showing the shape of the hole wall 11 when the excavation hole 10 is cut by a first cutting plane (not shown) which is a plane including the central axis CA (FIG. 5), which is the axis of the design value of the excavation hole 10, and extending along the vertical direction VD (FIG. 3), and a graph 110b showing the shape of the hole wall 11 when the excavation hole 10 is cut by a second cutting plane (not shown) which is a plane including the central axis CA, extending along the vertical direction VD, and intersecting perpendicularly with the first cutting plane. On graphs 110a and 110b, as measurement results by the measuring device 20, as shown in FIG. 5, in addition to the shadow 111 showing the shape of the hole wall 11, a horizontal axis scale HS which is a scale showing the width (diameter) of the excavation hole 10 and a vertical axis scale VS which is a scale showing the depth of the excavation hole 10 are recorded. Also, on graphs 110a and 110b, the measurement results of the shape of the hole wall 11 are recorded in the coordinate system shown in FIG. 9 with the intersection point of the central axis CA and the horizontal axis scale HS as the origin O. Note that the distance between each scale on each of the horizontal axis scale HS and the vertical axis scale VS is arbitrarily set by the measuring device 20 and is set according to the width (diameter) and depth of the excavation hole 10. Also, in the description of the hole wall measurement form creation system 1, as shown in FIG. 5, the case where the first cutting plane is a plane along the east-west direction WE and the second cutting plane is a plane along the north-south direction NS will be described as an example. Therefore, in the following description, each direction (the left-right direction in graph 110a and the left-right direction in graph 110b) when the excavation hole 10 is viewed in plan view will be described as the east direction, west direction, south direction, and north direction respectively, but these directions can be arbitrarily changed depending on the installation direction of the measuring device 20.

[0028] Furthermore, the measuring device 20 can perform measurements by switching the moving speed of the ultrasonic sensor 21 depending on the shape (width and depth) of the borehole 10. Therefore, among the graphs 110 recorded on thermal paper, there are some in which the intervals between the marks on the vertical axis scale VS are changed midway depending on the descent speed (movement speed) of the ultrasonic sensor 21 of the measuring device 20, as shown in FIGS. 4 and 5. In such graphs 110 (FIGS. 4 and 5), measurements are performed by changing the descent speed of the ultrasonic sensor 21 to a slower speed in the portion corresponding to the expanded bottom 10C of the borehole 10 than in other portions. Therefore, the intervals between the marks on the vertical axis scale VS in the portion corresponding to the expanded bottom 10C are recorded as longer intervals than in other portions.

[0029] In this way, when the descent speed of the ultrasonic sensor 21 is switched midway in the measuring device 20, the coordinate system of the graph 110 (vertical axis scale VS) will change midway. Therefore, the hole wall measurement document creation system 1 performs image recognition processing on the image of the graph 110 to identify the speed switch position SS, which is the position at which the measuring device 20 switched the descent speed (movement speed) of the ultrasonic sensor 21, and can correct the coordinate system of the graph 110 (vertical axis scale VS) based on this speed switch position SS. The method for identifying the speed switch position SS will be described later.

[0030] The hole wall measurement document creation system 1 acquires the graph 110 (FIG. 4) recorded on the above-mentioned thermal paper as an image, depicts the outline 120 of the concrete pile on the image of this graph 110, calculates the pile inclination θp and the like for the borehole 10 (concrete pile), and outputs the document 100, which describes the image of the graph 110, the outline 120, and the pile inclination θp and the like, as electronic data. Therefore, as shown in FIG. 1, the hole wall measurement document creation system 1 includes a control means 30 that collectively controls the various functions provided in the hole wall measurement document creation system 1, an input means 31 that can input pile shape information, an image acquisition means 32 that acquires the image of the graph 110, an image processing calculation unit 33 that can depict the outline 120 of the concrete pile 12 and calculate the pile inclination θp and the like, and an output means 34 that outputs the document 100 as electronic data. The hole wall measurement report creation system 1 also includes a display means 35 capable of displaying various information and images, an imaging means 36 capable of photographing thermal paper on which the graph 110 is recorded, a recording means 37 capable of recording various information, and a communication means 38 capable of communicating with other external devices (not shown).

[0031] The hole wall measurement document creation system 1 having the above-mentioned configuration can be realized by a mobile information terminal such as a tablet terminal or smartphone equipped with, for example, a touch panel capable of inputting and displaying various information, a camera capable of photographing a subject and acquiring an image, a recording device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) capable of recording various information, a communication device capable of communicating with external devices, a control device that controls all of these devices, etc. Therefore, the following will describe the hole wall measurement document creation system 1 configured with a mobile information terminal. In the hole wall measurement document creation system 1 configured with a mobile information terminal, the control device in the mobile information terminal corresponds to control means 30, and the touch panel in the mobile information terminal corresponds to input means 31 and display means 35. Also, the camera in the mobile information terminal corresponds to imaging means 36, and the recording device in the mobile information terminal corresponds to recording means 37. Furthermore, the communication device in the mobile information terminal corresponds to communication means 38.

[0032] The control means 30 (control device in the portable information terminal) is composed of, for example, a CPU (Central Processing Unit) that performs various processes according to a program, a ROM (Read Only Memory) that records a program for operating the CPU and other programs, and is a recording device from which this program can be read, and a RAM (Random Access Memory) that is a recording device capable of reading and writing various information, etc. It is composed of a microcomputer and comprehensively manages each component of the hole wall measurement form creation system 1.

[0033] The input means 31 (touch panel in the portable information terminal) accepts input operations by the operator and enables the input of pile shape information, which is information regarding the design values of the excavation hole 10 (concrete pile) and the construction record values of the excavation hole 10. The pile shape information is, for example, the information shown in Table 1 below. For example, the pile tip depth h1 indicating the depth of the deepest part 10F, which is the tip of the excavation hole 10 (concrete pile), the under-reaming start depth h4 indicating the depth of the upper end of the under-reamed part 10C, the bearing layer start depth h5 indicating the depth of the upper end of the bearing layer, the rising upper end depth h6 indicating the depth of the upper end of the rising part 10D (cylindrical part at the lower end of the under-reamed part 10C) in the under-reamed part 10C, the speed switching depth h7 indicating the depth of the position where the descending speed of the ultrasonic sensor 21 of the measuring device 20 is switched, and the graph horizontal axis distance ΔW, which is the actual dimension width of the entire horizontal axis scale HS of the graph 110.

Table 1

[0034] Among the pile shape information shown in Table 1, the above-mentioned pile tip depth h1, under-reaming start depth h4, bearing layer start depth h5, rising upper end depth h6, speed switching depth h7, and graph horizontal axis distance ΔW are construction record values when the excavation hole 10 is constructed. Also, the graph horizontal axis distance ΔW is calculated by presetting the interval between each scale in the horizontal axis scale HS during measurement by the measuring device 20, and an arbitrary distance such as 0.1 m or 0.4 m is set for the interval between each scale. Furthermore, among the pile shape information shown in Table 1, the pile top depth h2 indicating the depth of the top end of the concrete pile, the head bottom depth h3 indicating the depth of the bottom end of the head 10A of the borehole 10 (concrete pile), the head diameter D0 indicating the diameter of the head 10A of the borehole 10 (concrete pile), the shaft diameter D1 indicating the diameter of the shaft 10B of the borehole 10 (concrete pile), and the expanded bottom diameter D2 indicating the diameter of the rising portion 10D at the expanded bottom 10C of the borehole 10 (concrete pile) are design values of the borehole 10 (concrete pile). When the pile shape information is input from the input means 31, it is recorded in the recording means 37 (a recording device in a mobile information terminal).

[0035] Furthermore, the input means 31 (a touch panel on a mobile information terminal) accepts input operations by the operator, and allows input to correct the length, inclination, and position of the scanning pins SP (first scanning pin SP1, second scanning pin SP2, third scanning pin SP3) (FIG. 8) that are placed on the image of the graph 110 by the image processing calculation unit 33 (described later) and displayed on the display means 35 (a touch panel on the mobile information terminal) together with the image of the graph 110. In the hole wall measurement document creation system 1, the graph 110 is detected by image recognition processing by the image processing calculation unit 33, and the coordinate system of the graph 110 is acquired. Here, if there is a discrepancy between the coordinate system of the graph 110 detected by the image recognition processing and the coordinate system of the actual graph 110, it is necessary to correct the discrepancy. Therefore, in the hole wall measurement document creation system 1, in order to confirm and correct the coordinate system of the graph 110 detected by the image recognition process, an image of the graph 110 in which the scanning pins SP are arranged relative to the coordinate system of the graph 110 is displayed on the display means 35, and the input means 31 accepts corrections to the length, inclination, and position of the scanning pins SP displayed on the display means 35. Then, the image processing calculation unit 33 reflects the corrections accepted by the input means 31, and the image processing calculation unit 33 can accurately obtain the coordinate system of the graph 110 based on the corrected length, inclination, and position of the scanning pins SP.

[0036] Furthermore, the input means 31 (a touch panel on a mobile information terminal) accepts input operations by the operator, and allows input for correcting the position of a fourth scanning pin SP4 (FIG. 12) that is placed on the image of the graph 110 by the image processing calculation unit 33 described later and displayed on the display means 35 (a touch panel on a mobile information terminal) together with the image of the graph 110. In the hole wall measurement document creation system 1, the position of the hole wall 11 in the rising portion 10D is detected by image recognition processing by the image processing calculation unit 33, and the actual radius (r1 to r4) of the rising portion 10D is calculated based on the distance (w1 to w4) from the position of the hole wall 11 to the central axis CA, which is the axis of the design value of the borehole 10. Here, if there is a discrepancy between the position of the hole wall 11 in the rising portion 10D detected by the image recognition processing and the actual position of the hole wall 11 in the rising portion 10D on the graph 110, the discrepancy needs to be corrected. Therefore, in the hole wall measurement document creation system 1, in order to confirm and correct the position of the hole wall 11 in the rising portion 10D detected by the image recognition process, an image of the graph 110 in which the fourth scanning pin SP4 is positioned corresponding to the position of the hole wall 11 in the rising portion 10D is displayed on the display means 35, and the input means 31 accepts a correction to the position of the fourth scanning pin SP4 displayed on the display means 35. Then, the image processing calculation unit 33 reflects the correction accepted by the input means 31, and the image processing calculation unit 33 can accurately calculate the actual radius dimension (r1 to r4) of the rising portion 10D based on the distance (w1 to w4) from the corrected position of the fourth scanning pin SP4 to the central axis CA, which is the axis of the design value of the borehole 10. The image recognition processing in the image processing calculation unit 33 will be described later.

[0037] The image acquisition means 32 acquires an image of the graph 110. In the hole wall measurement document creation system 1 configured with a mobile information terminal, an operator uses an imaging means 36 (a camera in the mobile information terminal) to photograph the thermal paper (FIG. 4) on which the graph 110 is recorded, and the image of the graph 110 is recorded in a recording means 37 (a recording device in the mobile information terminal), and the image of the graph 110 recorded in the recording means 37 is acquired by the image acquisition means 32. Note that the method for obtaining the image of the graph 110 by the image acquisition means 32 is arbitrary. For example, in the case of the pile wall measurement form creation system 1 that does not include the imaging means 36 such as a camera, the operator may record the image of the graph 110 taken with another camera in a recording device such as a USB memory, and the image acquisition means 32 may obtain the image of the graph 110 from the recording device connected to the portable information terminal. Alternatively, the operator may record the image of the graph 110 taken with another camera in an external device, and the image acquisition means 32 may obtain the image of the graph 110 from the external device via the network and the communication means 38. Further, for example, the operator may save the image of the graph 110 taken with another camera on the cloud, and the image acquisition means 32 may obtain the image of the graph 110 saved on the cloud via the network and the communication means 38. Furthermore, the image of the graph obtained by the image acquisition means 32 is not limited to the one taken by the imaging means 36 such as a camera, and may also be an image created by scanning the thermal paper on which the graph 110 is recorded by a multifunction machine.

[0038] Based on the pile shape information input from the input means 31 and the image of the graph 110 acquired by the image acquisition means 32, the image processing calculation unit 33 depicts the contour 120 of the concrete pile on the image of the graph 110. First, the image processing calculation unit 33 converts each numerical value input as the pile shape information into coordinates to specify the actual dimension coordinates that are the coordinates of the design value of the concrete pile. Specifically, as shown in Table 2 below, each numerical value of the pile shape information is converted into actual dimension coordinates. For example, regarding the graph 110a, the first coordinate C1 and the second coordinate C2, which are the actual dimension coordinates when the concrete pile is cut at the first cutting plane, are specified. Also, regarding the graph 110b, the third coordinate C3 and the fourth coordinate C4, which are the actual dimension coordinates when the concrete pile is cut at the second cutting plane, are specified. Note that the coordinates shown in the tables and formulas referred to below are expressed with the coordinates on the horizontal scale HS as the X coordinates and the coordinates on the vertical scale VS as the Z coordinates.

Table 2

[0039] In Table 2, the "pile tip" refers to the actual dimension coordinates of the tip (the deepest part, 10F) of the concrete pile specified by the pile tip depth h1 and the enlarged bottom diameter D2, and the "pile top" refers to the actual dimension coordinates of the upper end of the concrete pile specified by the pile top depth h2 and the head diameter D0. Also, the "lower end depth of the head" refers to the actual dimension coordinates of the lower end of the head 10A of the concrete pile (excavation hole 10) specified by the lower end depth of the head h3 and the head diameter D0, and the "start depth of the enlarged bottom" refers to the actual dimension coordinates of the upper end of the enlarged bottom part 10C of the concrete pile (excavation hole 10) (the lower end of the shaft part 10B in the excavation hole 10) specified by the start depth of the enlarged bottom h4 and the shaft diameter D1. Furthermore, the "rising upper end" refers to the actual dimension coordinates of the upper end of the rising part 10D of the concrete pile (excavation hole 10) specified by the rising upper end depth h6 and the enlarged bottom diameter D2. These actual dimension coordinates are recorded by the recording means 37.

[0040] On the other hand, the image processing calculation unit 33 performs image recognition processing on the image of the graph 110 acquired by the image acquisition means 32, and as shown in FIG. 6, identifies the first boundary 210 which is the boundary between the measurement result recording area 200 where the graph 110 is recorded and the area outside the measurement result recording area 200, and detects the graph 110. Then, while specifying the pixel coordinates which are the coordinates on the image for the outer edge of the graph 110, based on these pixel coordinates, as the scanning pins SP related to the coordinate system of the graph 110, the first scanning pin SP1 and the second scanning pin SP2 are arranged on the image of the graph 110.

[0041] Therefore, first, the image processing operation unit 33 performs image recognition processing on the image of the graph 110 by combining the following plurality of functions in an open source library such as "OpenCV" (URL: https: / / opencv.org / ). Specifically, for example, the GaussianBlur function is used to smooth the image of the graph 110 to remove noise, and then the adaptiveThreshold function is used to convert the image of the graph 110 into binary data with only black and white. Next, the Canny function is used to detect the shape of the measurement result recording area 200 on the image of the graph 110, and the morphologyEx function is further used to clarify the shape of the measurement result recording area 200. Then, the findContours function is used to detect and identify the first boundary 210, which is the boundary line between the measurement result recording area 200 and the rest, from the shape of the measurement result recording area 200. Thereby, the image processing operation unit 33 can identify the graph based on the first boundary 210 and detect the graph 110 on the image. Note that, for convenience, FIG. 6 shows the measurement result recording area 200 and the first boundary 210 in an inverted black and white state from the detection state in the actual image recognition processing for easy identification.

[0042] Subsequently, the image processing operation unit 33 identifies pixel coordinates for the outer edge of the graph 110 identified by the image recognition process, and based on these pixel coordinates, arranges the first scanning pin SP1 (scanning pin SP) and the second scanning pin SP2 (scanning pin SP) on the image of the graph 110. Specifically, the first scanning pin SP1 is arranged corresponding to the upper end of each of the graphs 110a and 110b, and the second scanning pin SP2 is arranged corresponding to the lower end of each of the graphs 110a and 110b. Therefore, the interval between the first scanning pin SP1 and the second scanning pin SP2 corresponds to the length H (the length of the vertical axis scale VS) from the upper end to the lower end of the graph 110. Also, at this time, the image processing operation unit 33 sets the length of the first scanning pin SP1 arranged on each of the graphs 110a and 110b to a length corresponding to the left - right width W (the width of the horizontal axis scale HS) at the upper end of each of the graphs 110a and 110b, and further sets the inclination of the first scanning pin SP1 arranged on each of the graphs 110a and 110b to an angle corresponding to the inclination θ (the inclination of the image) of the graph 110.

[0043] Next, as shown in FIG. 7, the image processing operation unit 33 performs an image recognition process on the graph 110a among the graphs 110 on the detected image, and identifies the speed switching position SS from the position where the interval of the scales of the vertical axis scale VS is changed. Then, while identifying the pixel coordinates which are the coordinates on the image for the speed switching position SS, based on these pixel coordinates, as the scanning pin SP related to the coordinate system of the graph 110, the third scanning pin SP3 is arranged on the image of the graph 110.

[0044] Specifically, the image processing unit 33 extracts only the central axis peripheral portion 110c, which is a portion near the central axis CA, from the image of the graph 110a and determines pixel coordinates for each marking on the vertical axis scale VS for this central axis peripheral portion 110c. Then, the image processing unit 33 measures the distance between each marking from the pixel coordinates and determines a change start point VS1, which is the portion where the distance between each marking begins to change. The ultrasonic sensor 21 of the measuring device 20 changes its descent speed at this change start point VS1. Therefore, the speed switching position SS is determined from the distance L1 between the marks at the change start point VS1, the distance L2 between the marks one above the change start point VS1 (the distance between the marks before the descent speed of the ultrasonic sensor 21 is changed), and the distance L3 between the marks one below the change start point VS1 (the distance between the marks after the descent speed of the ultrasonic sensor 21 is changed). The image processing unit 33 determines the speed switching position SS using the following two equations (Equation 1 and Equation 2): [Formula 1] TIFF0007714266000004.tif2074[Formula 2] TIFF0007714266000005.tif2146This makes it possible to identify the speed switching position SS at the change start point VS1 according to the degree of change in the descent speed.The image processing calculation unit 33 then identifies the pixel coordinates of the identified speed switching position SS and places the third scanning pin SP3 (scanning pin SP) on the image of the graph 110 based on these pixel coordinates.

[0045] As described above, as shown in FIG. 8, the image processing operation unit 33 arranges the first scanning pin SP1, the second scanning pin SP2, and the third scanning pin SP3, which are scanning pins SP related to the coordinate system of the graph 110, on the image of the graph 110. Then, the image processing operation unit 33 causes the display means 35 to display the image of the graph 110 on which the scanning pin SP is arranged. Then, the operator who confirms the scanning pin SP by the display of the display means 35 can, when there is a deviation in the recognition of the coordinate system of the graph 110 by the image processing operation unit 33, for example, the left and right width W corresponding to the width of the horizontal axis scale HS in the graph 110, the up and down length (height) H corresponding to the length of the vertical axis scale VS in the graph 110, the position of the speed switching position SS (the third scanning pin SP3), and the inclination θ of the graph 110, correct the length, inclination, and position of the scanning pin SP by the input means 31, thereby correcting the recognition of the width W, the length H, the position of the speed switching position SS (the third scanning pin SP3), and the inclination θ of the graph 110 by the image processing operation unit 33. Note that the inclination of the first scanning pin SP1 can be adjusted according to the inclination of the image of the graph 110 with respect to the origin O, and the image processing operation unit 33 recognizes the inclination θ of the image of the graph 110 according to the inclination of the first scanning pin SP1.

[0046] Thereafter, the image processing operation unit 33 specifies the left and right width W and the up and down length H, etc. in the graph 110 based on the length, inclination, and position of the scanning pin SP (when there is a correction by the operator, the length, inclination, and position of the scanning pin SP with the correction reflected), and acquires the correct coordinate system of the graph 110. Specifically, the left and right width W (the width of the horizontal axis scale HS) of the graph 110 is specified from the length of the first scanning pin SP1, the inclination θ of the image (the inclination of the image of the graph 110) is specified from the inclination of the first scanning pin SP1, and further, the up and down length H (the length of the vertical axis scale VS) from the upper end to the lower end of the graph 110 is specified from the position of the first scanning pin SP1 and the position (interval) of the second scanning pin SP2. In addition, the image processing operation unit 33 specifies the speed switching position SS from the position of the third scanning pin SP3, and specifies the up and down length (height) H1 from the upper end of the graph 110 to the third scanning pin SP3. Then, the image processing calculation unit 33 uses the width W, inclination θ, length H, and length H1 of the graph 110 specified from these scanning pins SP to convert the actual size coordinates into pixel coordinates for each of the graphs 110a and 110b as shown in Table 3 below, and obtains the coordinates of the outer edge of the graph. [Table 3] In Table 3, "upper left end of the graph" and "upper right end of the graph" indicate the actual size coordinates specified from the horizontal axis distance ΔW of the graph and the height position (zero) of the ground G and the pixel coordinates corresponding to these actual size coordinates, and "lower left end of the graph" and "lower right end of the graph" indicate the actual size coordinates specified from the horizontal axis distance ΔW of the graph and the pile tip depth h1 and the pixel coordinates corresponding to these actual size coordinates, and "left end of the graph switching position" and "right end of the graph switching position" indicate the actual size coordinates specified from the horizontal axis distance ΔW of the graph and the speed switching depth h7 and the pixel coordinates corresponding to these actual size coordinates.

[0047] Then, the image processing calculation unit 33 obtains the coordinate system of the graph 110 shown in FIG. 9 based on the pixel coordinates shown in Table 3. At this time, the image processing calculation unit 33 recognizes the coordinate system of the graph 110 separately before and after the change in the descending speed of the ultrasonic sensor 21 based on the length (height) H1 specified from the position of the third scanning pin SP3, and corrects the coordinate system of the graph 110. Therefore, the image processing calculation unit 33 obtains the coordinate system of the graph 110 using the following coordinate conversion formula. The coordinate conversion formula is different above and below the speed switching depth h7 (Table 1) (above and below the position of the third scanning pin SP3). The first coordinate conversion formula (Equation 3) is set above the speed switching depth h7, and the second coordinate conversion formula (Equation 4) is set below the speed switching depth h7. [Equation 3] TIFF0007714266000007.tif5294 [Equation 4] TIFF0007714266000008.tif51133 In this way, the image processing calculation unit 33 can obtain the correct coordinate system of the graph 110 while correcting the coordinate system of the graph 110 based on the length, inclination, and position of the scanning pins SP, specifically, the length and inclination of the first scanning pin SP1, the distance between the position of the first scanning pin SP1 and the position of the second scanning pin SP2, and the distance between the position of the first scanning pin SP1 and the position of the third scanning pin SP3.

[0048] Next, the image processing calculation unit 33 converts the actual dimension coordinates (Table 2) of the concrete pile outline 120 recorded in the recording means 37 into pixel coordinates using the above-mentioned first coordinate conversion formula (Formula 3) and second coordinate conversion formula (Formula 4). Then, as shown in Fig. 10, the first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4 converted into pixel coordinates are arranged as points on the image of the graph 110. Next, the image processing calculation unit 33 depicts the contour 120 of the concrete pile on the image of the graph 110, as shown in Fig. 11, based on the first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4 arranged on the image of the graph 110. In this way, the image processing calculation unit 33 depicts the contour 120 of the concrete pile on the image of the graph 110.

[0049] Next, the image processing calculation unit 33 performs image recognition processing on the image of the graph 110 acquired by the image acquisition means 32, and detects the position of the hole wall 11 in the rising portion 10D of the expanded bottom portion 10C. Then, the pixel coordinates on the image for the position of this hole wall 11 are identified, and a fourth scanning pin SP4 corresponding to the position of the hole wall 11 in the rising portion 10D is placed on the image of the graph 110 based on these pixel coordinates.

[0050] Therefore, first, the image processing calculation unit 33 cuts out only the part of the image EB (FIG. 12) corresponding to the rising portion 10D on the image of the graph 110, and performs image recognition processing on this image EB by combining the following multiple functions in an open source library such as "OpenCV" (URL: https: / / opencv.org / ). Specifically, for example, the GaussianBlur function is used to smooth the image EB corresponding to the rising portion 10D to remove noise, and then the adaptiveThreshold function is used to convert the image EB into two-valued binary data containing only black and white. Next, the Canny function is used to detect the shape of the shadow 111 of the borehole wall 11 on the image EB, and the morphologyEx function is further used to clarify the shape of the shadow 111.

[0051] Then, the findContours function is used to detect the boundary between the hole wall 11 (shadow 111) and other areas on the image EB. Furthermore, of the boundaries between the hole wall 11 (shadow 111) and other areas, the boundary closer to the central axis CA is identified. The image processing calculation unit 33 then identifies the pixel coordinates of the identified boundary closer to the central axis CA, and identifies the position of the hole wall 11 in the rising portion 10D based on these pixel coordinates. Furthermore, based on the identified position of the hole wall 11, the image processing calculation unit 33 places fourth scanning pins SP4 corresponding to the position of the hole wall 11 on the image of the graph 110, as shown in FIG. 12. Note that a total of four fourth scanning pins SP4 are placed, two on each of the graphs 110a and 110b.

[0052] Next, image processing calculation unit 33 displays an image of graph 110 on which fourth scanning pin SP4 is positioned on display means 35. Then, when the operator confirms fourth scanning pin SP4 on the display of display means 35, if there is a discrepancy in the recognition by image processing calculation unit 33 of the position of hole wall 11 in rising portion 10D, the operator can correct the position of fourth scanning pin SP4 using input means 31.

[0053] Thereafter, based on the position of the fourth scanning pin SP4 (when there is a correction by the operator, the position of the fourth scanning pin SP4 reflecting the correction), the image processing calculation unit 33 identifies the position of the hole wall 11 in the rising portion 10D. Then, the on-image distances (from w1 to w4) from the position of the fourth scanning pin SP4 to the central axis CA are obtained, and these distances (from w1 to w4) are converted into actual dimension coordinates using the second coordinate conversion formula (Formula 4). Then, from these converted actual dimension coordinates, as shown in FIG. 13, the actual dimension radii (from r1 to r4) of the rising portion 10D can be identified (calculated). Also, using the following (Formula 5) and (Formula 6), the actual dimension enlarged bottom diameters d1 and d2, which are the actual dimension enlarged bottom diameters (diameters), can be calculated from these radii (from r1 to r4). [Formula 5] TIFF0007714266000009.tif2762[Formula 6] TIFF0007714266000010.tif2762

[0054] Subsequently, the image processing calculation unit 33 calculates the inclination amounts (from Δx1 to Δx4) (FIG. 12) using the actual dimension radii (from r1 to r4), and calculates the pile inclination based on these inclination amounts (from Δx1 to Δx4). At this time, the image processing calculation unit 33 calculates the inclination amounts (from Δx1 to Δx4) for each of the east, west, south, and north directions. As a calculation method, for example, when explaining the case of obtaining the inclination amount (Δx1) in the east direction as an example, it is calculated using the following (Formula 7). [Formula 7] TIFF0007714266000011.tif3580At this time, when the value calculated by the above (Formula 7) is greater than 0 (zero), that value is taken as the inclination amount Δx1. On the other hand, when the value calculated by the above (Formula 7) is less than 0 (zero), the inclination amount Δx1 has no inclination amount. Note that "D2" in (Formula 7) is the designed diameter (enlarged bottom diameter D2) of the rising portion 10D. Then, the image processing calculation unit 33 calculates the inclination amount Δx2 in the west direction, the inclination amount Δx3 in the south direction, and the inclination amount Δx4 in the north direction in the same manner as (Formula 7).

[0055] Next, the image processing calculation unit 33 calculates the tilt amount Ly in the east-west direction EW and the tilt amount Lx in the north-south direction NS based on the tilt amounts (Δx1 to Δx4). Specifically, the larger of the tilt amounts Δx1 and Δx2 is compared and set as the tilt amount Ly in the east-west direction EW, and the larger of the tilt amounts Δx3 and Δx4 is compared and set as the tilt amount Lx in the north-south direction NS. Furthermore, the image processing calculation unit 33 calculates the combined tilt amount L by the following (Equation 8) using the square root of the sum of squares. [Formula 8] TIFF0007714266000012.tif3294 Furthermore, the image processing calculation unit 33 calculates the pile inclination θp by dividing the calculated combined inclination amount L by the pile tip depth h1 (excavation length D) using the following (Equation 9). [Formula 9] TIFF0007714266000013.tif1888 In this manner, the image processing calculation unit 33 calculates the pile inclination θp.

[0056] The output means 34 outputs, as electronic data, a report 100 ( FIG. 2 ) that includes an image of the graph 110 and an outline 120 of the concrete pile that is drawn on the image of the graph 110 by the image processing calculation unit 33. The report 100 includes the tilt amounts (Δx1 to Δx4) calculated by the image processing calculation unit 33, the combined tilt amount L, the pile tilt θp, and the like. The format of the electronic data output by the output means 34 is arbitrary. For example, if the contents and layout of the report 100 shown in FIG. 2 need to be changed for each business operator that is required to submit the report 100, the report may be output in a file format that allows the contents and layout to be edited using spreadsheet software or the like. Alternatively, if the contents and layout do not need to be changed, the report 100 may be output in a portable document format (PDF) file format that allows the report 100 to be displayed correctly in different environments.

[0057] Display means 35 (a touch panel on a mobile information terminal) displays various information such as an image of graph 110 and scan pins SP (first scan pin SP1, second scan pin SP2, third scan pin SP3) and fourth scan pin SP4 arranged on the image of graph 110. The recording means 37 records various information such as pile shape information input from the input means 31, images of the graph 110 photographed using the imaging means 36, as well as actual dimension coordinates (Table 2), pixel coordinates, inclination amount (Δx1 to Δx4), pile inclination θp, etc. calculated by the image processing calculation unit 33. The communication means 38 can be connected to a network such as a LAN or the Internet by wire or wirelessly (wireless in the case of a mobile information terminal), and can communicate with external devices, storage areas on the cloud, etc. via this network.

[0058] Next, the flow of processing in the hole wall measurement document creation system 1 configured as above will be explained. First, an operator inputs pile shape information from the input means 31 (S300). Subsequently, the image acquisition means 32 acquires an image of the graph 110 (S301). Next, the image processing calculation 33 reads the pile shape information recorded in the recording means 37 (S302), and converts each numerical value of the pile shape information to identify actual dimension coordinates (S303). Meanwhile, image processing calculation unit 33 performs image recognition processing on the image of graph 110 (S304), and places scan pins SP (first scan pin SP1, second scan pin SP2, third scan pin SP3) (S305). Here, the image in which the scan pins SP are placed is displayed on display means 35, so the operator can correct the scan pins SP using input means 31. Thereafter, the image processing operation unit 33 identifies and acquires the coordinates of the outer edge of the graph based on the scan pins SP (first scan pin SP1, second scan pin SP2, third scan pin SP3) (S306). Furthermore, the image processing operation unit 33 recognizes the graph 110 and acquires the coordinate system of the graph 110 (FIG. 9) (S307).

[0059] Next, the image processing calculation unit 33 converts the actual dimension coordinates shown in Table 2 into pixel coordinates, and arranges the first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4 converted into pixel coordinates as points (points of the pile shape) on the image of the graph 110 (S308). Then, based on these first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4, the outline 120 (pile shape) of the concrete pile is depicted on the image of the graph 110 (S309).

[0060] Meanwhile, image processing calculation unit 33 performs image recognition processing on a portion of image EB on graph 110 that corresponds to rising portion 10D (S310), and places fourth scanning pin SP4 (S311). Here, the image with fourth scanning pin SP4 placed is displayed on display means 35, allowing the operator to modify fourth scanning pin SP4 using input means 31. Thereafter, image processing calculation unit 33 identifies the position of hole wall 11 in rising portion 10D based on the position of fourth scanning pin SP4, and calculates the actual radius (r1 to r4) of rising portion 10D based on the distance (w1 to w4) on the image from the position of hole wall 11 to central axis CA (S312). Furthermore, the image processing calculation unit 33 calculates the inclination amount (Δx1 to Δx4) using the actual radius (r1 to r4) and the design diameter, which is the expanded base diameter D2, and calculates the combined inclination amount L and the pile inclination θp from this inclination amount (Δx1 to Δx4) (S313). Thereafter, the output means 34 outputs as electronic data the image of the graph 110, the outline 120 of the concrete pile drawn on the image of the graph 110 by the image processing calculation unit 33, the inclination amounts (Δx1 to Δx4), the combined inclination amount L, and the report 100 (Figure 2) containing the pile inclination θp (S314).

[0061] The processing flow in the hole wall measurement document creation system 1 has been described above. The hole wall measurement document creation system 1 can also be realized as a hole wall measurement document creation program installed and operated on a computer (not shown) equipped with hardware such as a CPU, ROM, RAM, and HDD. In that case, it is configured as a program for causing a computer to execute each process in the input means 31, image acquisition means 32, image processing calculation unit 33, and output means 34 of the hole wall measurement document creation system 1 described above. Specifically, for example, it is configured as a program for causing a computer to execute an input procedure (S301) for inputting pile shape information, an image acquisition procedure (S301) for acquiring an image of the graph 110, an image processing calculation procedure (S302 to S309, etc.) for depicting the outline 120 of the concrete pile on the image of the graph 110, and an output procedure (S314) for outputting the document 100 containing the image of the graph 110 and the outline 120, etc., as electronic data. This allows it to be configured as a hole wall measurement document creation program with functions similar to those of the hole wall measurement document creation system 1.

[0062] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various design modifications can be made to the present invention without departing from the scope of the claims.

[0063] For example, in this embodiment, an example is shown in which the hole wall measurement report creation system 1 is configured using one mobile information terminal, but the hole wall measurement report creation system 1 may be realized using one general-purpose computer, or each component of the hole wall measurement report creation system 1 (control means 30, input means 31, image acquisition means 32, image processing calculation unit 33, output means 34, display means 35, imaging means 36 and recording means 37, etc.) may each be configured using a separate device.

[0064] Also, in this embodiment, in the hole wall measurement form creation system 1, an example was shown in which the image processing calculation unit 33 can correct the coordinate system of the graph 110 and the position of the hole wall 11 by correcting the lengths and positions of the scanning pins SP (first scanning pin, second scanning pin, third scanning pin) and the fourth scanning pin. However, it is also possible to directly input the numerical values of the pixel coordinates from the input means 31 to correct the coordinate system of the graph and the position of the hole wall 11, or it may be impossible for an operator to correct it as long as the accuracy of the image recognition process by the image processing calculation unit 33 is high.

[0065] Furthermore, in this embodiment, an example was shown in which the graph 110 shows the measurement results by the measuring device 20 whose moving speed of the ultrasonic sensor 21 can be switched. However, the graph 110 may also show the measurement results by the measuring device 20 whose moving speed of the ultrasonic sensor 21 cannot be switched. Also, the input means 31 may accept input by a keyboard or a mouse connected to a computer in addition to a touch panel, and the display means 35 may be a display provided independently separately from a mobile information terminal or a computer in addition to the display as a touch panel.

Explanation of Signs

[0066] 1 Hole wall measurement form creation program 10 Excavation hole 10A Head 10B Shaft part 10C Enlarged bottom part 10D Upright part 10E Opening part 10F Deepest part 11 Hole wall 20 Measuring device 21 Ultrasonic sensor 22 Base 30 Control means 31 Input means 32 Image acquisition means 33 Image processing calculation unit 34 Output means 35 Display means 36 Imaging means 37 Recording means 38 Communication means 100 form 110, 110a, 110b graphs 110c part around the central axis 111 shadow 120 contour 200 measurement result recording area 210 first boundary CA central axis C1 first coordinate C2 second coordinate C3 third coordinate C4 fourth coordinate D excavation length D0 head diameter D1 shaft diameter D2 enlarged bottom diameter D3 designed diameter (rising part) EB image (part corresponding to the rising part) EW east - west direction G ground H length (height) H1 length (height) HS horizontal axis scale h1 depth of pile tip h2 depth of pile top h3 depth of lower end of head h4 depth of start of enlarged bottom h5 depth of start of support layer h6 depth of upper end of rising part h7 depth of speed switching L combined inclination amount L1, L2, L3 distances Lx, Ly inclination amounts NS north - south direction r1, r2, r3, r4 radii (rising part) S300 - S314 SS speed switching position SP scanning pin (first scanning pin, second scanning pin, third scanning pin) SP1 first scanning pin SP2 second scanning pin SP3 third scanning pin SP4 fourth scanning pin VD vertical direction VS vertical axis scale VS1 start of change W width w1, w2, w3, w4 distances ΔW graph horizontal axis distance Δx1, Δx2, Δx3, Δx4 slopes θ inclination θp pile inclination

Claims

1. A borehole wall measurement form creation system for creating a form for a construction report of site-cast concrete piles, comprising: input means capable of inputting pile shape information, which is information regarding the design values of the concrete piles constructed in the bored holes and the construction record values of the bored holes; image acquisition means for acquiring an image obtained by photographing a graph showing the measurement result of the shape of the borehole wall of the bored hole; an image processing calculation unit that automatically detects a horizontal axis scale, which is a scale indicating the width of the bored hole recorded on the graph, and a vertical axis scale, which is a scale indicating the depth of the bored hole, by performing image recognition processing on the image, thereby obtaining the coordinate system of the graph, and is capable of depicting the contour of the concrete pile on the image based on the pile shape information, the image, and the coordinate system; output means for outputting the form on which the graph and the contour are described as electronic data. A borehole wall measurement form creation system characterized by the above.

2. The image acquisition means acquires the image obtained by photographing the thermal paper on which the graph is recorded. The image processing calculation unit arranges scanning pins including a first scanning pin, which is a mark for confirming the coordinate system, arranged corresponding to the upper end of the graph, having a length corresponding to the width of the horizontal axis scale, and an inclination corresponding to the inclination of the graph, and a second scanning pin, arranged corresponding to the lower end of the graph, the interval between which and the first scanning pin corresponds to the vertical length of the vertical axis scale, and causes the image on which the scanning pins are arranged to be displayed on a display means. The image processing calculation unit also receives corrections to the length, inclination, and position of the scanning pins displayed on the display means from the input means, specifies the width from the length of the first scanning pin, specifies the inclination from the inclination of the first scanning pin, and specifies the vertical length of the vertical axis scale from the positions of the first scanning pin and the second scanning pin, thereby obtaining the coordinate system. The borehole wall measurement form creation system according to Claim 1, characterized by the above.

3. The graph shows the measurement result by a measuring device that measures the shape while moving along the vertical direction in the bored hole. The scanning pins include a third scanning pin corresponding to a speed switching position, which is a position where the moving speed of the measuring device is switched. The image processing calculation unit specifies the speed switching position from the position of the third scanning pin and corrects the coordinate system. The borehole wall measurement form creation system according to Claim 2, characterized by the above.

4. The enlarged bottom formed at the tip of the excavation hole has a rising portion with the longest diameter at the lower end, The image acquisition means acquires the image obtained by photographing the thermal paper on which the graph is recorded, The image processing calculation unit detects the position of the hole wall in the rising portion recorded in the graph by performing image recognition processing on the image, and causes the display means to display the image in which the fourth scanning pin, which is a mark for confirming the position of this hole wall, is arranged. At the same time, the image processing calculation unit accepts the correction of the position of the fourth scanning pin displayed on the display means from the input means, and calculates the radius of the actual dimension of the rising portion based on the distance from the position of the fourth scanning pin to the central axis of the graph. The hole wall measurement form creation system according to claim 1, characterized in that.

5. The image processing calculation unit calculates the pile inclination based on the inclination amount calculated from the pile shape information and the radius, The output means is capable of outputting the form on which the pile inclination is described. The hole wall measurement form creation system according to claim 4, characterized in that.

6. A hole wall measurement form creation program for creating a form for the construction report of cast-in-place concrete piles, An input procedure for inputting pile shape information, which is information regarding the design value of the concrete pile constructed in the excavation hole and the construction record value of the excavation hole, An image acquisition procedure for acquiring an image obtained by photographing a graph showing the measurement result of the shape of the hole wall of the excavation hole, By performing image recognition processing on the image, the horizontal axis scale, which is a scale indicating the width of the excavation hole, and the vertical axis scale, which is a scale indicating the depth of the excavation hole, which are recorded in the graph, are automatically detected to obtain the coordinate system of the graph. At the same time, based on the pile shape information, the image, and the coordinate system, an image processing calculation procedure for depicting the contour of the concrete pile on the image, An output procedure for outputting the form on which the graph and the contour are described as electronic data, which is executed by a computer. The hole wall measurement form creation program, characterized in that.

Images