Borehole wall measurement report generation system and borehole wall measurement report generation program

Abstract

The objective is to provide a borehole wall measurement report creation system and program that enable the creation of reports from measurement results of the shape of the borehole wall without requiring much effort. [Solution] In the borehole wall measurement report creation system 1, the image processing calculation unit 33 draws the outline 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 a report as electronic data that contains the graph image and the outline of the concrete pile drawn on the graph image by the image processing calculation unit 33.

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 a cast-in-place concrete pile, it is necessary to confirm whether the shape of the excavation hole for cast-in-place concrete pile construction conforms to the design value. Therefore, various measuring devices for measuring the shape of the wall surface (borehole wall) of the excavation hole have been proposed. For example, Patent Document 1 proposes a measuring device capable of visually confirming the shape of the wall surface of a deep hole (excavation 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 excavation 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] Incidentally, in actual field work, measuring devices that output measurement results as three-dimensional images, like the measuring device mentioned above, are rarely used to measure the shape of the borehole wall. Instead, devices that output measurement results as graphs on thermal paper are still more commonly used. Furthermore, when constructing a borehole, it is necessary not only to confirm the shape of the borehole wall, but also to draw the outline of the concrete pile based on the design values ​​on the graph of the measured wall shape, and to fill in information such as the borehole's inclination amount calculated by analyzing the measurement results, in order to create a report for construction.

[0006] Therefore, workers would analyze and calculate information about the borehole (such as the inclination of the borehole) from the outputted measurement results, and then copy the thermal paper output of the measurement results onto plain paper using a printer or other printing machine. On this copied measurement result, they would then handwrite the outline of the concrete pile based on the design values ​​and the aforementioned information about the borehole to create a report. As a result, a lot of work time was spent on creating these reports, and improvements in work efficiency are desired.

[0007] Therefore, the objective is to provide a borehole wall measurement report creation system and program that enable the creation of reports from measurement results of the shape of the borehole wall without requiring much effort. [Means for solving the problem]

[0008] The borehole wall measurement report creation system according to the present invention is for creating reports for the construction of cast-in-place concrete piles, and is characterized by comprising: an input means capable of inputting pile shape information, which is information relating to the design value of the concrete pile constructed in the borehole and the construction record value of the borehole; an image acquisition means for acquiring an image of a graph showing the measurement results of the shape of the borehole wall of the borehole; an image processing calculation unit capable of drawing the outline of the concrete pile on the graph image based on the pile shape information and the graph image; and an output means for outputting a report containing the graph and the outline of the concrete pile as electronic data.

[0009] The hole wall measurement report creation system according to the present invention is characterized in that an image acquisition means acquires an image of a graph by photographing thermal paper on which a graph is recorded, an image processing calculation unit detects the graph by image recognition processing on the graph image, displays the image of the graph with scanning pins related to the coordinate system of the graph on a display means, receives corrections to 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 report generation system according to the present invention includes a scanning pin which comprises a first scanning pin positioned corresponding to the upper end of the graph, having a length corresponding to the width of the graph and an inclination corresponding to the slope of the graph, and a second scanning pin positioned corresponding to the lower end of the graph, having a distance from the first scanning pin which corresponds to the length from the upper end to the lower end of the graph, and an image processing calculation unit which determines the width of the graph from the length of the first scanning pin, determines the slope of the graph from the inclination of the first scanning pin, determines the length from the upper end to the lower end of the graph from the position of the first scanning pin and the position of the second scanning pin, and obtains the coordinate system of the graph.

[0011] The borehole wall measurement report generation system according to the present invention is characterized in that the graph shows the measurement results obtained by a measuring device that measures the shape of the borehole wall while moving vertically within the borehole, the scanning pins include a third scanning pin corresponding to a speed switching position which is the position where the movement speed of the measuring device is switched, and the image processing calculation unit identifies the speed switching position from the position of the third scanning pin and corrects the coordinate system of the graph.

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

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

[0014] The borehole wall measurement report creation program according to the present invention is for creating a report for the construction of cast-in-place concrete piles, and is characterized by causing a computer to execute the following steps: an input procedure for inputting pile shape information, which is information relating to the design value of the concrete pile to be constructed in the borehole and the construction record value of the borehole; an image acquisition procedure for acquiring an image of a graph showing the measurement results of the shape of the borehole wall of the borehole; an image processing calculation procedure for drawing the outline of the concrete pile on the graph image based on the pile shape information and the graph image; 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 borehole wall measurement report creation system according to the present invention is for creating reports for the construction of cast-in-place concrete piles, and comprises an input means capable of inputting pile shape information, which is information relating to the design value of the concrete pile constructed in the borehole and the construction record value of the borehole; an image acquisition means for acquiring an image of a graph showing the measurement result of the shape of the borehole wall of the borehole; an image processing calculation unit capable of drawing the outline of the concrete pile on the graph image based on the pile shape information and the graph image; and an output means for outputting a report containing the graph and the outline of the concrete pile as electronic data. Therefore, by inputting pile shape information from the input means and having the image acquisition means acquire an image of a graph showing the measurement result of the shape of the borehole wall of the borehole, a report with the outline of the concrete pile drawn on the graph showing the measurement result can be automatically created and output as electronic data. In this system, if a graph showing the measurement results of the borehole wall shape is output on thermal paper, the worker can use an imaging device such as a camera to photograph the graph and record it as an image, then have the image acquisition device acquire that image. Alternatively, if the graph showing the measurement results of the borehole wall shape is output as an image, the image acquisition device can acquire that image directly, thereby automatically creating and outputting a report with the outline of the concrete pile drawn on the graph. Therefore, compared to the conventional method of creating reports where the outline of the concrete pile is handwritten on the graph, the time required to create the report can be reduced, thereby reducing working time. Furthermore, since there is no need to copy the thermal paper onto plain paper, and the created report is output as electronic data, it becomes possible to create and record reports paperlessly.

[0016] The hole wall measurement report creation system according to the present invention includes an image acquisition means that acquires an image of a graph by photographing thermal paper on which a graph is recorded, an image processing unit that detects the graph by image recognition processing on the graph image, displays an image of the graph with scanning pins related to the graph's coordinate system on a display means, and receives corrections to the length, inclination, and position of the scanning pins displayed on the display means from an input means, and acquires the graph's coordinate system based on the length, inclination, and position of the scanning pins. Therefore, even if the coordinate system of the graph detected by the image processing unit needs correction, the graph's coordinate system can be corrected by correcting the length, inclination, and position of the scanning pins.

[0017] The hole wall measurement report generation system according to the present invention includes a scanning pin, a first scanning pin positioned corresponding to the upper end of the graph, with a length corresponding to the width of the graph and a slope corresponding to the inclination of the graph, and a second scanning pin positioned corresponding to the lower end of the graph, with a distance from the first scanning pin corresponding to the length from the upper end to the lower end of the graph. The image processing unit determines the width of the graph from the length of the first scanning pin, determines the inclination of the graph from the slope of the first scanning pin, and determines the length from the upper end to the lower end of the graph from the position of the first scanning pin and the position of the second scanning pin to obtain the coordinate system of the graph. In this way, if correction of the coordinate system of the graph is necessary, the image processing unit can obtain an accurate coordinate system of the graph simply by correcting the length and slope of the first scanning pin, and the positions of the first and second scanning pins to match the outer edge of the graph. Thus, correction of the coordinate system of the graph becomes easy.

[0018] The borehole wall measurement report generation system according to the present invention displays the measurement results from a measuring device that measures the shape of the borehole wall while moving vertically through the borehole in the graph, and the scanning pins include a third scanning pin corresponding to a speed switching position, which is the position where the movement speed of the measuring device is switched. The image processing unit identifies the speed switching position from the position of the third scanning pin and corrects the coordinate system of the graph. Therefore, even if the movement speed along the vertical direction is changed during measurement and the coordinate system changes in the middle of the graph, the image processing unit can accurately identify 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. Consequently, the image processing unit can accurately acquire the coordinate system of the graph and accurately depict the contour of the concrete pile in accordance with that coordinate system.

[0019] The borehole wall measurement report creation system according to the present invention has a widened base formed at the tip of a borehole, with a rising section at its lower end that has the longest diameter. An image acquisition means acquires an image of a graph by photographing thermal paper on which a graph is recorded. An image processing calculation unit detects the position of the borehole wall at the rising section by image recognition processing of the graph image, and displays an image of the graph with a fourth scanning pin corresponding to this borehole wall position on a display means. The display means also accepts corrections to the position of the fourth scanning pin displayed on the display means from an input means and calculates the actual radius of the rising section 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 actual radius of the rising section of the widened base. Consequently, there is no need for the operator to analyze the graph to calculate the actual radius of the rising section, thus reducing the time required to create reports and thus reducing working time.

[0020] The borehole wall measurement report creation system according to the present invention uses an image processing unit to calculate the pile inclination based on the inclination amount calculated from the pile shape information and the actual radius of the rising portion, and an output means capable of outputting a report containing the pile inclination. Therefore, the pile inclination can be calculated automatically, and a report containing this inclination amount can be output. Consequently, since there is no need for the operator to analyze a graph to calculate the pile inclination, the time required to create the report can be reduced, thereby reducing working time.

[0021] The program for creating a hole wall measurement form according to the present invention is for creating a form for the construction report of a cast-in-place concrete pile, and includes an input procedure for inputting pile shape information, which is information regarding the design values of the concrete pile constructed in the excavation hole and the construction record values of the excavation hole, an image acquisition procedure for acquiring an image of a graph showing the measurement result of the shape of the hole wall of the excavation hole, an image processing operation procedure for depicting the contour 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, as electronic data, a form in which the graph and the contour of the concrete pile are described. Therefore, it can exhibit the same effects as the above-described hole wall measurement form creation system.

Brief Description of the Drawings

[0022] [Figure 1] It is a schematic configuration diagram of a hole wall measurement form creation system according to an embodiment of the present invention. [Figure 2] It is a diagram showing an example of a form created by the hole wall measurement form creation system according to an embodiment of the present invention. [Figure 3] It is a measurement device and a measurement method for measuring the measurement result of the shape of the hole wall obtained by the hole wall measurement form creation system according to an embodiment of the present invention, and an explanatory diagram for explaining the shape of the excavation hole. [Figure 4] It is a diagram showing an example example of a graph showing the measurement result of the shape of the hole wall obtained by the hole wall measurement form creation system according to an embodiment of the present invention. [Figure 5] It is a schematic diagram simplifying a graph showing the measurement result of the shape of the hole wall obtained by the hole wall measurement form creation system according to an embodiment of the present invention. [Figure 6] It is explanatory diagram (1) for explaining the image recognition processing performed on the image of the graph showing the measurement result by the hole wall measurement form creation system according to an embodiment of the present invention. [Figure 7] It is explanatory diagram (2) for explaining the image recognition processing performed on the image of the graph showing the measurement result by the hole wall measurement form creation system according to an embodiment of the present invention. [Figure 8] This is an explanatory diagram showing a state in which scanning pins (first scanning pin, second scanning pin, third scanning pin) are arranged on an image of a graph showing measurement results using the hole wall measurement report creation system according to an embodiment of the present invention. [Figure 9] This figure shows the coordinate system of a graph obtained by the hole wall measurement report creation system according to an embodiment of the present invention. [Figure 10] This figure shows the state in which points of coordinates relating to the contour of a concrete pile are arranged in the coordinate system of a graph using the hole wall measurement report creation system according to an embodiment of the present invention. [Figure 11] This figure shows the outline of a concrete pile as depicted by the borehole wall measurement report creation system according to an embodiment of the present invention. [Figure 12] This is an explanatory diagram showing a state in which the fourth scanning pin is placed on an image of a graph showing measurement results using the hole wall measurement report creation system according to an embodiment of the present invention. [Figure 13] This figure shows the state in which the borehole wall measurement report creation system according to an embodiment of the present invention calculates the actual radius and actual enlarged base diameter at the rising portion of the borehole based on the position of the fourth scanning pin. [Figure 14] This is a flowchart showing the processing flow in a hole wall measurement report creation system according to an embodiment of the present invention. [Modes for carrying out the invention]

[0023] The borehole wall measurement report creation system, which is an embodiment of the present invention, will be described below with reference to the attached drawings. Figure 1 is a block diagram showing the schematic configuration of the borehole wall measurement report creation system 1. The borehole wall measurement report creation system 1 is for automatically creating a report 100 (Figure 2) for construction reports of cast-in-place concrete piles and outputting it as electronic data. The report 100 is for recording the shape of the borehole 10, such as the shape of the borehole wall 11 of the borehole 10 shown in Figure 3, and is used in reports, etc. Therefore, the report 100 contains an image of a graph 110 showing the measurement results by a measuring device 20 (Figure 3) for measuring the shape of the borehole wall 11, the outline 120 of the concrete pile (not shown) depicted by the borehole wall measurement report creation system 1, and information about the borehole 10 and the concrete pile. The concrete pile is constructed by pouring concrete into the borehole 10 after construction. Furthermore, while the graph 110 of the form 100 shown in Figure 2 is actually an image of the graph 110 recorded on thermal paper as shown in Figure 4, in the diagrams referenced in the following explanation (excluding Figure 4), the image of graph 110 is shown as a simplified schematic diagram.

[0024] The information regarding the excavated holes 10 and concrete piles described in Form 100 (Figure 2) (hereinafter referred to as "information regarding the excavated holes 10 and concrete piles" as "information regarding the excavated holes 10, etc.") includes, for example, the pile number (pile NO.), which is the sorting number for each excavated hole 10 (concrete pile) at each construction site, the measurement date, and the person who made the measurement, all of which are described above the images of Graph 110 (Graph 110a and Graph 110b) in Form 100. Furthermore, Form 100 also includes design values ​​for each part of the excavated hole 10 (concrete pile) as information regarding the excavated holes 10, etc., such as the head diameter D0, which is the diameter of the head 10A (Figure 3) of the excavated hole 10 (concrete pile), the shaft diameter D1, which is the diameter of the shaft portion 10B of the excavated hole 10 (concrete pile), and the enlarged base diameter D2, which is the diameter of the rising portion 10D at the lower end of the enlarged base portion 10C of the excavated hole 10 (concrete pile). In addition, the excavation length D, which indicates the depth of the excavated hole 10, is also described. Here, the enlarged base portion 10C is the part formed in an inverse taper shape toward the downwards at the tip (lower end) of the excavated hole 10. Furthermore, the rising portion 10D at the lower end of the enlarged base portion 10C has a longer diameter than the other parts of the enlarged base portion 10C, and is formed as a cylindrical part with the longest diameter of the enlarged base portion 10C. The design values ​​for each part of the excavated hole 10 (concrete pile) described above are based on the pile shape information described later.

[0025] Furthermore, in the report 100, information regarding the borehole 10, etc., is described below the images of graphs 110 (graphs 110a and 110b) in the report 100, including the design diameter D4, which is the radius of the riser section 10D calculated from the enlarged base diameter D2, the actual radii r1, r2, r3, r4 of the riser section 10D, the inclination amounts Lx, Ly of the borehole 10 (concrete pile), the combined inclination amount L, and the pile inclination θp. Of these, the design diameter D4 of the riser section 10D, the actual radii r1, r2, r3, r4 of the riser section 10D, the inclination amounts Lx, Ly, the combined inclination amount L, and the pile inclination θp are calculated by the borehole wall measurement report creation system 1.

[0026] As shown in Figure 3, the measuring device 20 is equipped with an ultrasonic sensor 21 that emits ultrasonic waves to the borehole wall 11 and receives the reflected waves, and uses this ultrasonic sensor 21 to measure the shape of the borehole wall 11 of the borehole 10. Specifically, the measuring device 20 is installed on a base 22 that straddles the opening 10E of the borehole 10, and the ultrasonic sensor 21 is suspended inside the borehole 10, and the shape of the borehole wall 11 is measured while rotating the ultrasonic sensor 21 horizontally. The measuring device 20 also measures the shape of the borehole wall 11 of the entire borehole 10 while gradually moving (lowering or raising) the ultrasonic sensor 21 along the vertical direction VD from the height of the ground G to the deepest part 10F, which is the lower end of the borehole 10. When the measurement of the entire borehole 10 is complete, the measuring device 20 outputs thermal paper on which a graph 110 showing the measurement results of the shape of the borehole wall 11 is recorded. Figure 4 shows an example of thermal paper (graph 110) output from the measuring device 20, and Figure 5 is a simplified schematic diagram of the thermal paper (graph 110) output from the measuring device 20 to explain graph 110. Note that graph 110 shown in Figure 4 is merely a sample, and the shape of the shadow 111 showing the shape of the hole wall 11 differs from that shown in drawings other than Figure 4.

[0027] As shown in Figures 4 and 5, graph 110 records a shadow 111 indicating the shape of the borehole wall 11 as a measurement result by the measuring device 20. Graph 110 also includes graph 110a, which shows the shape of the borehole wall 11 when the borehole 10 is cut by a first cross-section (not shown), which is a plane extending along the vertical direction VD (Figure 3) and includes the central axis CA (Figure 5), which is the axis of the design value of the borehole 10; and graph 110b, which shows the shape of the borehole wall 11 when the borehole 10 is cut by a second cross-section (not shown), which includes the central axis CA, extends along the vertical direction VD, and intersects perpendicularly with the first cross-section. Graphs 110a and 110b, as shown in Figure 5, record not only the shadow 111 indicating the shape of the borehole wall 11, but also a horizontal axis scale HS indicating the width (diameter) of the borehole 10 and a vertical axis scale VS indicating the depth of the borehole 10, respectively, as measurement results by the measuring device 20. Furthermore, in graphs 110a and 110b, the measurement results of the shape of the borehole wall 11 are recorded in the coordinate system shown in Figure 9, with the intersection of the central axis CA and the horizontal axis scale HS being the origin O. The distances between each scale on the horizontal axis scale HS and the vertical axis scale VS are arbitrarily set by the measuring device 20 and are set according to the width (diameter) and depth of the borehole 10. In the explanation of the borehole wall measurement report creation system 1, the first cross-section is a plane along the east-west direction WE, and the second cross-section is a plane along the north-south direction NS, as shown in Figure 5, as an example. Therefore, in the following explanation, each direction when viewing the borehole 10 from above (left-right direction in graph 110a and left-right direction in graph 110b) will be described as east, west, south, and north, respectively, but these directions can be arbitrarily changed depending on the orientation in which the measuring device 20 is installed.

[0028] Furthermore, the measuring device 20 can switch the movement speed of the ultrasonic sensor 21 according to the shape (width and depth) of the borehole 10 for measurement. As a result, in the graphs 110 recorded on thermal paper, as shown in Figures 4 and 5, there are some in which the interval of the scale on the vertical axis scale VS changes midway according to the descent speed (movement speed) of the ultrasonic sensor 21 of the measuring device 20. In such graphs 110 (Figures 4 and 5), the descent speed of the ultrasonic sensor 21 is changed to a slower speed than in other parts for measurement in the part corresponding to the enlarged base 10C of the borehole 10. As a result, the interval of the scale on the vertical axis scale VS in the part corresponding to the enlarged base 10C is recorded as longer than in other parts.

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

[0030] The borehole wall measurement report creation system 1 acquires the graph 110 (Figure 4) recorded on the thermal paper mentioned above as an image, draws the outline 120 of the concrete pile on the image of the graph 110, calculates the pile inclination θp related to the excavated hole 10 (concrete pile), and outputs a report 100 containing the image of the graph 110, the outline 120, and the pile inclination θp as electronic data. Therefore, as shown in Figure 1, the borehole wall measurement report creation system 1 includes a control means 30 that comprehensively controls the various functions of the borehole wall measurement report 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 draw the outline 120 of the concrete pile 12 and calculate the pile inclination θp, and an output means 34 that outputs the report 100 as electronic data. Furthermore, the hole wall measurement report creation system 1 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 report creation system 1, having the configuration described above, can be realized using, for example, a tablet or smartphone-type mobile information terminal equipped with a touch panel capable of inputting and displaying various types of information, a camera capable of capturing images of subjects, a recording device such as an HDD (Hard Disk Drive) or SSD (Solid State Drive) capable of recording various types of information, a communication device capable of communicating with external devices, and a control device that comprehensively controls these devices. Therefore, the hole wall measurement report creation system 1 configured using a mobile information terminal will be described below. In the hole wall measurement report creation system 1, which is configured using a portable information terminal, the control device on the portable information terminal corresponds to the control means 30, and the touch panel on the portable information terminal corresponds to the input means 31 and the display means 35. Furthermore, the camera on the portable information terminal corresponds to the imaging means 36, and the recording device on the portable information terminal corresponds to the recording means 37. In addition, the communication device on the portable information terminal corresponds to the communication means 38.

[0032] The control means 30 (control device in a portable information terminal) consists of a microcomputer equipped with, for example, a CPU (Central Processing Unit) that performs various processes according to a program, a ROM (Read Only Memory) which is a recording device that stores programs for operating the CPU and can read these programs, and a RAM (Random Access Memory) which is a recording device that can read and write various information, and it manages and integrates each component of the hole wall measurement report creation system 1.

[0033] The input means 31 (touch panel on a portable information terminal) accepts input operations from the worker and allows input of pile shape information, which is information related to the design value of the excavation hole 10 (concrete pile) and the construction record value of the excavation hole 10. The pile shape information is, for example, the information shown in Table 1 below, and includes, for example, the pile tip depth h1 which indicates the depth of the deepest part 10F which is the tip of the excavation hole 10 (concrete pile), the base expansion start depth h4 which indicates the depth of the upper end of the base expansion section 10C, the support layer start depth h5 which indicates the depth of the upper end of the support layer, the riser upper end depth h6 which indicates the depth of the upper end of the riser section 10D (cylindrical part at the lower end of the base expansion section 10C) in the base expansion section 10C, the speed switching depth h7 which indicates the depth of the position where the descent speed of the ultrasonic sensor 21 of the measuring device 20 is switched, and the graph horizontal axis distance ΔW which is the width of the entire horizontal axis scale HS of the graph 110. [Table 1]

[0034] Of the pile shape information shown in Table 1, the pile tip depth h1, base widening start depth h4, bearing layer start depth h5, riser top depth h6, speed switching depth h7, and graph horizontal axis distance ΔW are construction record values ​​when the borehole 10 was constructed. The graph horizontal axis distance ΔW is calculated by pre-setting the interval between each scale on the horizontal axis scale HS when measured by the measuring device 20, and the interval between each scale can be set to any distance such as 0.1m or 0.4m. Furthermore, among the pile shape information shown in Table 1, the pile top depth h2, which indicates the depth of the upper end of the concrete pile; the head bottom depth h3, which indicates the depth of the lower end of the head 10A of the excavated hole 10 (concrete pile); the head diameter D0, which indicates the diameter of the head 10A of the excavated hole 10 (concrete pile); the shaft diameter D1, which indicates the diameter of the shaft portion 10B of the excavated hole 10 (concrete pile); and the enlarged base diameter D2, which indicates the diameter of the rising portion 10D at the enlarged base portion 10C of the excavated hole 10 (concrete pile) are design values ​​for the excavated hole 10 (concrete pile). Note that when the pile shape information is input from the input means 31, it is recorded in the recording means 37 (recording device in the portable information terminal).

[0035] Furthermore, the input means 31 (touch panel on a mobile information terminal) accepts input operations from the operator and allows input for correcting the length, inclination, and position of the scanning pins SP (first scanning pin SP1, second scanning pin SP2, third scanning pin SP3) (Figure 8) which 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 (touch panel on a mobile information terminal) together with the image of the graph 110. In the hole wall measurement report 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 obtained. If there is a discrepancy between the coordinate system of the graph 110 detected by the image recognition processing and the actual coordinate system of the graph 110, it is necessary to correct that discrepancy. Therefore, in the hole wall measurement report creation system 1, in order to confirm and correct the coordinate system of the graph 110 detected by image recognition processing, an image of the graph 110 with scanning pins SP related to the coordinate system of the graph 110 is displayed on the display means 35, and the input means 31 receives 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 received by the input means 31, so that the image processing calculation unit 33 can accurately acquire 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 (touch panel on a mobile information terminal) accepts input operations from the operator and allows input to correct the position of the fourth scanning pin SP4 (Figure 12), which 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 (touch panel on a mobile information terminal) together with the image of the graph 110. In the borehole wall measurement report creation system 1, the position of the borehole wall 11 in the rising section 10D is detected by image recognition processing by the image processing calculation unit 33, and the actual radius (r1 to r4) of the rising section 10D is calculated based on the distance (w1 to w4) from the position of the borehole wall 11 to the central axis CA, which is the axis of the design value of the excavated hole 10. If there is a discrepancy between the position of the borehole wall 11 in the rising section 10D detected by image recognition processing and the actual position of the borehole wall 11 in the rising section 10D on the graph 110, it is necessary to correct the discrepancy. Therefore, in the borehole wall measurement report creation system 1, in order to confirm and correct the position of the borehole wall 11 in the rising section 10D detected by image recognition processing, an image of a graph 110 in which the fourth scanning pin SP4 corresponding to the position of the borehole wall 11 in the rising section 10D is placed is displayed on the display means 35, and the input means 31 receives the correction of the position of the fourth scanning pin SP4 displayed on the display means 35. Then, by reflecting the correction received by the input means 31 in the image processing calculation unit 33, the image processing calculation unit 33 can calculate the accurate actual radius (r1 to r4) of the rising section 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 report creation system 1, which is composed of a portable information terminal, the operator takes a picture of the thermal paper (Figure 4) on which the graph 110 is recorded using the imaging means 36 (camera in the portable information terminal), so that an image of the graph 110 is recorded in the recording means 37 (recording device in the portable information terminal), and the image acquisition means 32 acquires the image of the graph 110 recorded in the recording means 37. The method for acquiring the image of the graph 110 by the image acquisition means 32 is arbitrary. For example, in the case of a hole wall measurement report creation system 1 that does not have an imaging means 36 such as a camera, the operator may record an image of the graph 110 taken with another camera on a recording device such as a USB memory, and the image acquisition means 32 may acquire the image of the graph 110 from the recording device connected to a mobile information terminal. Alternatively, the operator may record an image of the graph 110 taken with another camera on an external device, and the image acquisition means 32 may acquire the image of the graph 110 from the external device via the network and communication means 38. Furthermore, for example, the operator may save an image of the graph 110 taken with another camera on the cloud, and the image acquisition means 32 may acquire the image of the graph 110 saved on the cloud via the network and communication means 38. Moreover, the graph image acquired by the image acquisition means 32 is not limited to one taken with an imaging means 36 such as a camera, but may also be an image created by scanning thermal paper on which the graph 110 is recorded using a multifunction printer.

[0038] The image processing unit 33 draws the outline 120 of the concrete pile on the image of the graph 110 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. First, the image processing unit 33 converts each numerical value input as pile shape information into coordinates to identify the actual dimension coordinates, which are the design coordinates 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, with respect to 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 cross-section, are identified, and with respect to 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 cross-section, are identified. Note that in the tables and formulas referenced below, the coordinates shown are expressed with the coordinate on the horizontal axis scale HS as the X coordinate and the coordinate on the vertical axis scale VS as the Z coordinate. [Table 2]

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

[0040] Meanwhile, the image processing unit 33 performs image recognition processing on the image of the graph 110 acquired by the image acquisition means 32, and as shown in Figure 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, it identifies the pixel coordinates, which are the coordinates on the image, for the outer edge of the graph 110, and based on these pixel coordinates, it places the first scanning pin SP1 and the second scanning pin SP2 on the image of the graph 110 as scanning pins SP relating to the coordinate system of the graph 110.

[0041] First, the image processing unit 33 performs image recognition processing on the image of graph 110 by combining several functions from an open-source library such as "OpenCV" (URL: https: / / opencv.org / ). Specifically, for example, it uses the GaussianBlur function to smooth the image of graph 110 and remove noise, and then uses the adaptiveThreshold function to convert the image of graph 110 into binary data consisting only of grayscale. Next, it uses the Canny function to detect the shape of the measurement result recording area 200 on the image of graph 110, and then uses the morphologyEx function to clarify the shape of the measurement result recording area 200. Then, it uses the findContours function to detect and identify the first boundary 210, which is the boundary between the measurement result recording area 200 and the surrounding area, based on the shape of the measurement result recording area 200. As a result, the image processing unit 33 can identify the graph based on the first boundary 210 and detect graph 110 on the image. For convenience, Figure 6 shows the image with the colors reversed from the actual image recognition detection state to make the measurement result recording area 200 and the first boundary 210 easier to identify.

[0042] Next, the image processing 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, places 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 placed corresponding to the upper ends of graph 110a and graph 110b, respectively, and the second scanning pin SP2 is placed corresponding to the lower ends of graph 110a and graph 110b, respectively. Therefore, the distance between the first scanning pin SP1 and the second scanning pin SP2 corresponds to the length H (length of the vertical axis scale VS) from the upper end to the lower end of the graph 110. Furthermore, at this time, the image processing unit 33 sets the length of the first scanning pin SP1, which is located on each of graphs 110a and 110b, to a length corresponding to the left-right width W (width of the horizontal axis scale HS) at the upper ends of each of graphs 110a and 110b, and sets the inclination of the first scanning pin SP1, which is located on each of graphs 110a and 110b, to an angle corresponding to the inclination θ (image inclination) of graph 110.

[0043] Next, as shown in Figure 7, the image processing unit 33 performs image recognition processing on graph 110a from the detected graph 110 on the image, and identifies the speed switching position SS from the position where the interval of the vertical axis scale VS is changed. Then, it identifies the pixel coordinates of the speed switching position SS on the image, and based on these pixel coordinates, it places the third scanning pin SP3 on the image of graph 110 as a scanning pin SP related to the coordinate system of graph 110.

[0044] Specifically, the image processing unit 33 extracts only the central axis peripheral portion 110c, which is the area near the central axis CA, from the image of graph 110a, and identifies the pixel coordinates for each scale on the vertical axis scale VS for this central axis peripheral portion 110c. Then, it measures the distance between each scale from these pixel coordinates and identifies the change start point VS1, which is the point where the distance between each scale 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 identified from the distance L1 between scales at the change start point VS1, the distance L2 between scales one level above the change start point VS1 (the distance between scales before the descent speed of the ultrasonic sensor 21 is changed), and the distance L3 between scales one level below the change start point VS1 (the distance between scales after the descent speed of the ultrasonic sensor 21 is changed). At this time, the image processing unit 33 identifies the speed switching position SS using the following two equations (Equation 1, Equation 2). [Formula 1] TIFF2026067251000004.tif2074[Formula 2] TIFF2026067251000005.tif2146 This allows the change initiation unit VS1 to identify the position of the speed switching position SS according to the degree of change in the descent speed. The image processing unit 33 then identifies the pixel coordinates of the identified speed switching position SS and, based on these pixel coordinates, places the third scanning pin SP3 (scanning pin SP) on the image of graph 110.

[0045] As described above, the image processing unit 33 places the scanning pins SP, namely the first scanning pin SP1, the second scanning pin SP2, and the third scanning pin SP3, which are related to the coordinate system of the graph 110, onto the image of the graph 110, as shown in Figure 8. The image processing unit 33 then displays the image of the graph 110 with the scanning pins SP placed on the display means 35. When an operator confirms the scanning pins SP through the display means 35, if there is a discrepancy in the image processing unit 33's recognition of the coordinate system of the graph 110, such as the left-right width W corresponding to the width of the horizontal axis scale HS in the graph 110, the top-bottom 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 (third scanning pin SP3), and the inclination θ of the graph 110, the operator can correct the image processing unit 33's recognition of the width W, length H, the position of the speed switching position SS (third scanning pin SP3), and the inclination θ of the graph 110 by correcting the length, inclination, and position of the scanning pins SP using the input means 31. The tilt of the first scanning pin SP1 can be adjusted to match the tilt of the image in graph 110 with respect to the origin O, and the image processing unit 33 recognizes the tilt θ of the image in graph 110 according to the tilt of the first scanning pin SP1.

[0046] Subsequently, the image processing unit 33 identifies the horizontal width W and vertical length H of the graph 110 based on the length, inclination, and position of the scanning pin SP (and, if any corrections have been made by the operator, the length, inclination, and position of the scanning pin SP reflecting those corrections), and obtains the correct coordinate system of the graph 110. Specifically, it identifies the horizontal width W of the graph 110 (width of the horizontal axis scale HS) from the length of the first scanning pin SP1, the tilt θ of the image (tilt of the image in the graph 110) from the inclination of the first scanning pin SP1, and further identifies the vertical length H from the top to the bottom of the graph 110 (length of the vertical axis scale VS) from the position (distance) of the first scanning pin SP1 and the position (distance) of the second scanning pin SP2. The image processing unit 33 also identifies the speed switching position SS from the position of the third scanning pin SP3 and identifies the vertical length (height) H1 from the top of the graph 110 to the third scanning pin SP3. Then, the image processing unit 33 uses the width W, slope θ, length H, and length H1 of the graph 110 identified from these scanning pins SP to convert the actual dimensional coordinates to pixel coordinates for graph 110a and graph 110b, respectively, as shown in Table 3 below, and obtains the coordinates of the outer edge of the graph. [Table 3] In Table 3, the "upper left corner of the graph" and the "upper right corner of the graph" show the actual dimensional coordinates identified from the graph's horizontal axis distance ΔW and the height position (zero) of the ground G, and the corresponding pixel coordinates. The "lower left corner of the graph" and the "lower right corner of the graph" show the actual dimensional coordinates identified from the graph's horizontal axis distance ΔW and the pile tip depth h1, and the corresponding pixel coordinates. The "left end of the graph switching position" and the "right end of the graph switching position" show the actual dimensional coordinates identified from the graph's horizontal axis distance ΔW and the speed switching depth h7, and the corresponding pixel coordinates.

[0047] The image processing unit 33 then acquires the coordinate system of graph 110 shown in Figure 9 based on the pixel coordinates shown in Table 3. At this time, the image processing unit 33 recognizes the coordinate system of graph 110 separately before and after the change in the descent speed of the ultrasonic sensor 21, based on the length (height) H1 determined from the position of the third scanning pin SP3, and corrects the coordinate system of graph 110. The image processing unit 33 then acquires the coordinate system of graph 110 using the following coordinate transformation formula. The coordinate transformation formula differs above and below the speed switching depth h7 (Table 1) (above and below the position of the third scanning pin SP3). The first coordinate transformation formula (Equation 3) is set above the speed switching depth h7, and the second coordinate transformation formula (Equation 4) is set below the speed switching depth h7. [Formula 3] TIFF2026067251000007.tif5294 [Formula 4] TIFF2026067251000008.tif51133 As a result, the image processing unit 33 can correct the coordinate system of the graph 110 and obtain the correct 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 unit 33 uses the first coordinate transformation formula (Equation 3) and the second coordinate transformation formula (Equation 4) described above to convert the actual dimensional coordinates (Table 2) of the concrete pile contour 120 recorded in the recording means 37 into pixel coordinates. Then, as shown in Figure 10, the first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4, which have been converted into pixel coordinates, are placed as points on the image of the graph 110. Next, the image processing unit 33 draws the outline 120 of the concrete pile on the image of graph 110, as shown in Figure 11, based on the first coordinate C1, second coordinate C2, third coordinate C3, and fourth coordinate C4 placed on the image of graph 110. In this way, the image processing unit 33 draws the outline 120 of the concrete pile on the image of graph 110.

[0049] Next, the image processing unit 33 performs image recognition processing on the graph 110 image acquired by the image acquisition means 32 to detect the position of the hole wall 11 in the rising portion 10D of the widened base portion 10C. Then, it identifies the pixel coordinates on the image for the position of this hole wall 11, and based on these pixel coordinates, places the fourth scanning pin SP4 corresponding to the position of the hole wall 11 in the rising portion 10D on the graph 110 image.

[0050] First, the image processing unit 33 extracts only the image EB (Figure 12) corresponding to the rising edge 10D on the graph 110 image, and then performs image recognition processing on this image EB by combining several functions from 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 and remove noise, and then the adaptiveThreshold function is used to convert the image EB into binary data consisting only of grayscale. Next, the Canny function is used to detect the shape of the shadow 111 of the hole wall 11 on the image EB, and the morphologyEx function is used to further 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 the surrounding area on the image EB. Furthermore, the boundary closer to the central axis CA is identified among the boundaries between the hole wall 11 (shadow 111) and the surrounding area. The image processing unit 33 then identifies the pixel coordinates of the identified boundary closer to the central axis CA, and based on these pixel coordinates, the position of the hole wall 11 in the rising section 10D is determined. In addition, based on the identified position of the hole wall 11, the image processing unit 33 places the fourth scanning pin SP4 corresponding to the position of the hole wall 11 on the image of graph 110, as shown in Figure 12. Note that a total of four fourth scanning pins SP4 are placed, two each in graph 110a and graph 110b.

[0052] Next, the image processing unit 33 displays the image of the graph 110 in which the fourth scanning pin SP4 is located on the display means 35. Then, if the operator who has confirmed the fourth scanning pin SP4 from the display means 35 finds that there is a discrepancy in the recognition of the position of the hole wall 11 in the rising section 10D by the image processing unit 33, they can correct the position of the fourth scanning pin SP4 using the input means 31.

[0053] Subsequently, the image processing unit 33 identifies the position of the hole wall 11 in the riser portion 10D based on the position of the fourth scanning pin SP4 (or, if there has been a modification by the operator, the position of the fourth scanning pin SP4 after the modification has been made). Then, it obtains the distance on the image (w1 to w4) from the position of the fourth scanning pin SP4 to the central axis CA, and converts this distance (w1 to w4) into actual dimension coordinates using the second coordinate transformation formula (formula 4). As a result, the actual radius (r1 to r4) of the riser portion 10D can be identified (calculated) from these converted actual dimension coordinates, as shown in Figure 13. Furthermore, the actual enlarged base diameters d1 and d2, which are the actual enlarged base diameters (diameter), can be calculated from these radii (r1 to r4) using the following formulas (formula 5) and (formula 6). [Formula 5] TIFF2026067251000009.tif2762[Formula 6] TIFF2026067251000010.tif2762

[0054] Next, the image processing unit 33 calculates the inclination amount (Δx1 to Δx4) (Figure 12) using the actual radius (r1 to r4), and calculates the stake inclination based on this inclination amount (Δx1 to Δx4). At this time, the image processing unit 33 calculates the inclination amount (Δx1 to Δx4) for each of the east, west, north, and south directions. As an example of the calculation method, when calculating the inclination amount (Δx1) in the east direction, it is calculated using the following (Equation 7). [Formula 7] TIFF2026067251000011.tif3580 In this case, if the value calculated by (Equation 7) above is greater than 0 (zero), that value shall be taken as the incline amount Δx1. On the other hand, if the value calculated by (Equation 7) above is less than 0 (zero), the incline amount Δx1 shall be zero. Note that "D2" in (Equation 7) is the design value diameter (expanded base diameter D2) of the rising section 10D. Then, the image processing unit 33 calculates the westward slope Δx2, the southward slope Δx3, and the northward slope Δx4 in the same manner as in (Equation 7).

[0055] Next, the image processing unit 33 calculates the slope amount Ly in the east-west direction EW and the slope amount Lx in the north-south direction NS based on the slope amounts (Δx1 to Δx4). Specifically, it compares the slope amounts Δx1 and Δx2 and sets the larger value as the slope amount Ly in the east-west direction EW, and compares the slope amounts Δx3 and Δx4 and sets the larger value as the slope amount Lx in the north-south direction NS. Furthermore, the image processing unit 33 calculates the composite gradient L using the following equation (Equation 8) which uses the root of the sum of squares. [Formula 8] TIFF2026067251000012.tif3294 Furthermore, the image processing unit 33 calculates the pile inclination θp by dividing the calculated composite inclination amount L by the pile tip depth h1 (excavation length D) using the following equation (9). [Formula 9] As described above, the image processing unit 33 calculates the stake inclination θp.

[0056] The output means 34 outputs a form 100 (Figure 2) as electronic data, which contains an image of the graph 110 and the outline 120 of the concrete pile drawn on the image of the graph 110 by the image processing unit 33. This form 100 contains the slope amount (Δx1 to Δx4), composite slope amount L, pile slope θp, etc., calculated by the image processing unit 33. The format of the electronic data output by the output means 34 is arbitrary. For example, if the contents and layout of the form 100 exemplified in Figure 2 need to be changed for each business that needs to submit the form 100, it may be output in a file format that allows editing of the contents and layout using spreadsheet software, etc. Alternatively, if no changes to the contents or layout are necessary, it may be output in PDF (Portable Document Format) file format that can display the form 100 correctly in different environments.

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

[0058] Next, we will explain the processing flow in the hole wall measurement report creation system 1, which is configured as described above. First, the operator inputs pile shape information from the input means 31 (S300). Next, the image acquisition means 32 acquires an image of the graph 110 (S301). Then, the image processing calculation 33 reads the pile shape information recorded in the recording means 37 (S302), converts each numerical value of the pile shape information, and identifies the actual dimensional coordinates (S303). Meanwhile, the image processing unit 33 performs image recognition processing on the image of graph 110 (S304) and sets the scanning pins SP (first scanning pin SP1, second scanning pin SP2, third scanning pin SP3) (S305). At this point, the image with the scanning pins SP placed is displayed on the display means 35, so the operator can correct the scanning pins SP from the input means 31. Subsequently, the image processing unit 33 identifies and acquires the coordinates of the outer edge of the graph based on the scanning pins SP (first scanning pin SP1, second scanning pin SP2, third scanning pin SP3) (S306). Furthermore, the image processing unit 33 recognizes the graph 110 and acquires the coordinate system of the graph 110 (Figure 9) (S307).

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

[0060] On the other hand, the image processing unit 33 performs image recognition processing on the image EB corresponding to the rising portion 10D on the graph 110 (S310) and sets the fourth scanning pin SP4 (S311). At this point, the image with the fourth scanning pin SP4 positioned is displayed on the display means 35, so the operator can correct the fourth scanning pin SP4 from the input means 31. Subsequently, the image processing unit 33 identifies the position of the hole wall 11 in the rising portion 10D based on the position of the fourth scanning pin SP4, and calculates the actual radius (r1 to r4) of the rising portion 10D based on the distance (w1 to w4) on the image from the position of the hole wall 11 to the central axis CA (S312). Furthermore, the image processing unit 33 calculates the inclination amount (Δx1 to Δx4) using the actual radius (r1 to r4) and the enlarged base diameter D2, which is the design value diameter, and calculates the composite inclination amount L and the pile inclination θp from this inclination amount (Δx1 to Δx4) (S313). Subsequently, the output means 34 outputs the image of graph 110, and a report 100 (Figure 2) containing the outline 120 of the concrete pile drawn on the image of graph 110 by the image processing calculation unit 33, the amount of inclination (Δx1 to Δx4), the combined amount of inclination L, and the pile inclination θp as electronic data (S314).

[0061] The above describes the processing flow in the borehole wall measurement report creation system 1. Furthermore, the borehole wall measurement report creation system 1 can also be implemented as a borehole wall measurement report 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 that causes the 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 borehole wall measurement report creation system 1 described above. Specifically, for example, it is configured as a program that causes the computer to execute an input procedure (S301) in which pile shape information is input, an image acquisition procedure (S301) in which an image of graph 110 is acquired, an image processing calculation procedure (S302 to S309, etc.) in which the contour 120 of the concrete pile is drawn on the image of graph 110, and an output procedure (S314) in which a report 100 containing the image of graph 110 and the contour 120, etc., is output as electronic data. This makes it possible to configure a borehole wall measurement report creation program that has the same functions as the borehole wall measurement report creation system 1.

[0062] As described above, embodiments of the present invention have been explained in detail, but the present invention is not limited to the above embodiments. Furthermore, the present invention can be modified in various ways without departing from the matters described in 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 a single portable information terminal. However, the hole wall measurement report creation system 1 may be implemented using a single 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 be configured using separate devices.

[0064] Furthermore, in this embodiment, the hole wall measurement report creation system 1 was shown as an example 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 length and position 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 correct the coordinate system of the graph and the position of the hole wall 11 by directly inputting pixel coordinate values ​​from the input means 31, or it is also possible to have a system in which correction by the operator is not possible if the accuracy of the image recognition processing by the image processing calculation unit 33 is high.

[0065] Furthermore, in this embodiment, graph 110 shows an example where the measurement results are obtained using a measuring device 20 that can switch the movement speed of the ultrasonic sensor 21. However, graph 110 may also show the measurement results obtained using a measuring device 20 that cannot switch the movement speed of the ultrasonic sensor 21. In addition, the input means 31 may accept input from a keyboard or mouse connected to a computer, in addition to a touch panel, and the display means 35 may be a display that is provided independently of a portable information terminal or computer, in addition to a display that functions as a touch panel. [Explanation of Symbols]

[0066] 1. Program for creating hole wall measurement reports 10 boreholes 10A head 10B Shaft 10C Widened base 10D Rising section 10E opening 10th Floor, Deepest Part 11 Hole wall 20 Measuring devices 21 Ultrasonic Sensor 22 base 30 Control means 31 Input means 32 Image acquisition means 33 Image Processing Unit 34 Output means 35 Display means 36. Imaging means 37 Recording means 38. Means of communication 100 forms 110, 110a, 110b graphs 110c Around the central axis 111 Shadow 120 contours 200 Measurement result recording area 210 1st boundary CA center axis C1 First Coordinate C2 Second Coordinate C3 Third Coordinate C4 4th coordinate D Excavation Length D0 Head diameter D1 shaft diameter D2 Expanded base diameter D3 Design diameter (rising section) EB image (part corresponding to the rising edge) EW (East-West direction) G ground H Length (height) H1 Length (height) HS horizontal axis scale h1 Pile tip depth h2 Pile top depth h3 Bottom depth of head h4 Bottom expansion start depth h5 Starting depth of support layer h6 Rise top depth h7 Speed ​​switching depth L Composite slope amount L1,L2,L3 distance Lx,Ly Inclination amount NS north-south direction r1,r2,r3,r4 Radius (rising part) S300~S314 SS Speed ​​Switching Position SP scanning pins (1st scanning pin, 2nd scanning pin, 3rd scanning pin) SP1 First scanning pin SP2 Second scanning pin SP3 Third scanning pin SP4 4th scanning pin VD Vertical direction VS Vertical axis scale VS1 Change Initiation Point W width w1,w2,w3,w4 distance ΔW graph horizontal axis: distance Δx1, Δx2, Δx3, Δx4 Inclination amount θ slope θp Pile inclination

Claims

1. A system for creating borehole wall measurement reports for construction reports of cast-in-place concrete piles, An input means capable of inputting pile shape information, which is information relating to the design values ​​of concrete piles constructed in an excavation hole and the construction record values ​​of the said excavation hole, Image acquisition means for acquiring an image of a graph showing the measurement results of the shape of the borehole wall of the aforementioned borehole, An image processing unit capable of drawing the outline of the concrete pile on the image based on the pile shape information and the image, The system includes output means for outputting the aforementioned graph and the aforementioned outline on the document as electronic data. A hole wall measurement report generation 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 unit detects the graph by image recognition processing of the image, displays the image on the display means with scanning pins related to the coordinate system of the graph, receives corrections to the length, inclination, and position of the scanning pins displayed on the display means from the input means, and acquires the coordinate system based on the length, inclination, and position of the scanning pins. The hole wall measurement report creation system according to claim 1.

3. The scanning pins include a first scanning pin positioned corresponding to the upper end of the graph, having a length corresponding to the width of the graph and a slope corresponding to the inclination of the graph, and a second scanning pin positioned corresponding to the lower end of the graph, having a distance from the first scanning pin corresponding to the length from the upper end to the lower end of the graph. The image processing unit determines the width of the graph from the length of the first scanning pin, determines the slope of the graph from the inclination of the first scanning pin, determines the length from the upper end to the lower end from the position of the first scanning pin and the position of the second scanning pin, and obtains the coordinate system. The hole wall measurement report creation system according to feature 2.

4. The graph above shows the measurement results obtained by a measuring device that measures the shape while moving vertically within the borehole. The scanning pins include a third scanning pin corresponding to a speed switching position, which is the position where the moving speed of the measuring device is switched. The image processing unit identifies the speed switching position from the position of the third scanning pin and corrects the coordinate system. The hole wall measurement report creation system according to claim 2 or 3, characterized in that it is a system for creating hole wall measurement reports.

5. The enlarged base formed at the tip of the aforementioned borehole has a rising portion at its lower end that has the longest diameter, The image acquisition means acquires the image obtained by photographing the thermal paper on which the graph is recorded. The image processing unit detects the position of the hole wall in the rising portion by image recognition processing of the image, displays the image on the display means with the fourth scanning pin corresponding to the position of the hole wall, receives a correction of the position of the fourth scanning pin displayed on the display means from the input means, and calculates the actual radius 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 report creation system according to claim 1.

6. The image processing unit calculates the pile inclination based on the amount of inclination calculated from the pile shape information and the radius, The output means is capable of outputting the report containing the stake inclination. The hole wall measurement report creation system according to feature 5.

7. A program for creating borehole wall measurement reports for construction reports of cast-in-place concrete piles, An input procedure for inputting pile shape information, which is information regarding the design values ​​of concrete piles to be constructed in an excavated hole and the construction record values ​​of the said excavated hole, An image acquisition procedure for acquiring an image of a graph showing the measurement results of the shape of the borehole wall of the aforementioned borehole, An image processing calculation procedure for drawing the outline of the concrete pile on the image based on the pile shape information and the image, An output procedure for outputting the aforementioned graph and the aforementioned document containing the aforementioned contour as electronic data, and causing a computer to execute such an output procedure. A hole wall measurement report generation program characterized by the following features.

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