Information processing device and information processing method

Abstract

We support the investigation of groundwater seepage ahead of the tunnel face during tunnel construction. [Solution] In the survey support system 100, the information processing device 1 displays an input screen on a tablet terminal 2 for inputting data of the drilling process (amount of groundwater seeping at the mouth for each drilling depth, groundwater seeping pressure and drilling speed, and images of the core collected by drilling) measured by a drilling device 4 that drills forward from the face of the tunnel, and displays the drilling process data input from the tablet terminal 2 on a plurality of external terminals 3, and a determination unit 12 determines survey conditions including at least one of the following [1] to [4] based on the approval operation of each external terminal 3. [1]: Survey location within the drilling section. [2]: Closure location of the packer section of the drilling device 4 within the drilling section. [3]: Expansion pressure of the packer section. [4]: ​​Time required per survey in the measurement section determined by the closure of the packer section, and the number of times surveys with changed measurement sections are conducted within a predetermined time.

Description

Technical Field

[0001] The present invention relates to an information processing apparatus and an information processing method.

Background Art

[0002] In recent years, there has been active development of technologies related to the investigation of water inrush in front of the face in tunnel construction, and related inventions have been published. For example, Patent Document 1 discloses a method for measuring water inrush pressure or water inrush flow rate. In this measurement method, a drilling hole is drilled using a drilling pipe. After temporarily stopping the drilling, a terminal pipe provided with a packer portion is attached to the end of the drilling pipe. Drilling is further performed using the drilling pipe to which the terminal pipe is attached. The packer portion is inserted into the drilling hole. By expanding the packer portion, the space between the outer peripheral surface of the packer portion and the inner peripheral surface of the drilling hole is closed. The water inrush pressure or water inrush flow rate in the drilling hole is measured. Also, the invention of Patent Document 2 has been published.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a water inrush investigation, it is preferable to immediately determine the investigation specifications while checking various data acquired during drilling in real time. However, the data acquired in conventional water inrush investigations were recorded by hand by the drilling workers, so there was a problem that a great deal of labor was required for data acquisition. Furthermore, determining the survey specifications requires incorporating the opinions of stakeholders such as survey supervisors, general contractor engineers, and the client. Therefore, it is necessary to share the data acquired by the boring workers among these stakeholders. Given the need to determine the survey specifications immediately, sharing data acquired inside the tunnel must be done quickly, but this is inherently difficult. In the past, survey supervisors would be present during boring operations day and night to determine the survey specifications on-site in order to share data. Consequently, conventional groundwater surveys had the problem of requiring considerable effort for data sharing. Furthermore, there were no established criteria for determining survey specifications, and the determination of survey specifications was left to the experience of those involved. As a result, conventional spring water surveys had the problem of requiring a great deal of effort just to determine the survey specifications. Patent Document 1 does not even mention the above problem.

[0005] From this perspective, the object of the present invention is to propose an information processing device and an information processing method that support the investigation of groundwater seepage ahead of the tunnel face during tunnel construction. [Means for solving the problem]

[0006] The present invention A display control unit displays an input screen on a first terminal device for inputting the amount of seepage water at the tunnel face for each drilling depth, the seepage water pressure at each drilling depth, the drilling speed for each drilling depth, and core images of the core collected by drilling, which are measured by a drilling device that drills forward from the tunnel face, and displays at least a portion of the multiple data input from the first terminal device on multiple second terminal devices. An information processing device comprising: a determination unit that determines investigation conditions including at least one of the following [1] to [4] based on the approval operation of each of the second terminal devices. Furthermore, the present invention is The first terminal device displays an input screen for inputting the amount of seepage water at the tunnel face for each drilling depth, the seepage water pressure at each drilling depth, the drilling speed for each drilling depth, and the core image of the core collected by the drilling device, which drills forward from the tunnel face. The steps include: displaying at least a portion of the multiple data input from the first terminal device on multiple second terminal devices; The information processing method comprises the step of determining investigation conditions including at least one of the following [1] to [4] by each approval operation of the second terminal device. [1]: Survey location within the drilling section. [2]: The closed position of the packer section of the drilling device within the drilling section. [3]: The expansion pressure of the packer portion. [4]: The time required for one survey in the measurement section determined by the blockage of the packer section, and the number of times the survey is conducted with a different measurement section within a predetermined time. With this configuration, for example, a boring worker can input acquired data (inlet water volume, inlet water pressure, drilling speed, and core image) from a first terminal device. Therefore, the effort required for data acquisition can be reduced. Also, for example, the acquired data can be immediately displayed on a second terminal device held by each of the stakeholders. Therefore, the effort required for data sharing can be reduced. Furthermore, the effort required for data collection, organization, calculation, and visualization can also be reduced. In addition, the data to be acquired is predetermined, reducing reliance on the experience of the stakeholders. For this reason, the effort required to determine the survey specifications themselves can be reduced.

[0007] Furthermore, it is preferable that the display control unit causes the second terminal device to display the section spring water volume in the measurement section, the change over time of the section spring water pressure in the measurement section, the change over time of the spring water pressure at the mouth measured during the measurement of the section spring water volume and the section spring water pressure, and the change over time of the expansion pressure of the packer section. This allows for the immediate detection of abnormalities during the measurement section (e.g., whether the packing mechanism is functioning correctly).

[0008] Furthermore, the system includes a calculation unit that, when the drilling start time, drilling interruption time, and drilling completion time for each drilling unit of a predetermined length are obtained from the first terminal device, calculates the drilling speed for each drilling unit of a predetermined length using the obtained drilling start time, drilling interruption time, and drilling completion time. Preferably, the display control unit causes the second terminal device to display the calculated tunneling speed. This can reduce the labor of data sharing of the tunneling speed for each drilling unit of a predetermined length (e.g., one drilling pipe: 1.5 m).

[0009] Furthermore, it further includes a core image acquisition unit that associates the core image acquired from the first terminal device or the core image externally input to the first terminal device with the drilling depth. Preferably, the display control unit aligns the acquired core images for each drilling depth and causes the second terminal device to display them. This can reduce the labor of data sharing of the core images for each drilling depth.

[0010] Furthermore, it further includes a log management unit that manages a drilling log in which the date, the start time of drilling, the end time of drilling, the tunneling section, machine data, the face water pressure, the face water inflow rate, and the drainage color are associated. Preferably, the display control unit causes the second terminal device to display the drilling log. This can further reduce the labor of determining the investigation specifications by analyzing the drilling log.

Advantages of the Invention

[0011] According to the present invention, it is possible to support the water inrush investigation in front of the face in tunnel construction.

Brief Description of the Drawings

[0012] [Figure 1] It is a functional configuration diagram of the investigation support system of the first embodiment. [Figure 2] It is an explanatory diagram of the measurement process of the drilling device. [Figure 3] It is an input screen for data related to the drilling device. [Figure 4] It is an example screen of a consideration screen related to the water inrush investigation. [Figure 5]Explanatory drawing (part 1) for determining the survey location of the water gushing survey. (a) is a graph of the tunneling speed and the water inflow rate at the face for each drilling depth, and (b) is a graph of the tunneling speed and the water pressure at the face for each drilling depth. [Figure 6] Explanatory drawing (part 2) for determining the survey location of the water gushing survey. [Figure 7] Example screen of the approval screen regarding the survey conditions. [Figure 8] Example screen of the measurement screen in the measurement process. [Figure 9] Flowchart showing the processing of the first embodiment. [Figure 10] Functional configuration diagram of the survey support system of the second embodiment. [Figure 11] Example screen regarding the measurement of the drilling time in the drilling process. (a) is an example screen during drilling stop, (b) is an example screen during drilling, and (c) is an example screen during drilling interruption. [Figure 12] Example screen of the drilling log.

Mode for Carrying Out the Invention

[0013] Hereinafter, the mode for carrying out the present invention will be described in detail with appropriate reference to the drawings. Each figure only schematically shows the invention to such an extent that it can be sufficiently understood. Therefore, the present invention is not limited only to the illustrated examples. In each figure, common components and similar components are denoted by the same reference numerals, and their overlapping explanations are omitted.

[0014] <First Embodiment> [Configuration] Figure 1 is a functional configuration diagram of the survey support system according to the first embodiment. The survey support system 100 is a system that supports groundwater surveys concerning groundwater zones located ahead of the tunnel face. The survey support system 100 comprises an information processing device 1, a tablet terminal 2 (first terminal device), and an external terminal 3 (second terminal device). The tablet terminal 2 is an information processing terminal used by workers 21 performing groundwater survey work (e.g., boring work) at the tunnel face. The external terminal 3 is an information processing terminal used by personnel involved in groundwater surveys at locations away from the tunnel face (e.g., survey supervisors, general contractor engineers, clients). Multiple external terminals 3 are provided for each person involved. The information processing device 1, tablet terminal 2, and external terminal 3 are connected to each other so as to be able to communicate via a network (e.g., the internet). Furthermore, worker 21 uses the drilling device 4 to measure the amount and pressure of the seepage zone located forward from the tunnel face.

[0015] The information processing device 1 is a computer equipped with hardware such as an input unit, an output unit, a control unit, and a memory unit. For example, if the control unit consists of a CPU (Central Processing Unit), information processing by the computer including that control unit is realized by program execution processing by the CPU. The memory unit included in the computer stores various programs to realize the computer's functions according to the CPU's instructions. This realizes cooperation between software and hardware. The programs can be provided by recording them on a recording medium or via a network. The memory unit may also be implemented as a cloud. The above description of the information processing device 1 also applies to the tablet terminal 2 and the external terminal 3.

[0016] The information processing device 1 comprises a display control unit 11 and a determination unit 12. The information processing device 1 also stores a drilling DB 13 and a measurement DB 14. "DB" stands for database. The display control unit 11 controls the display content of the tablet terminal 2 and the display content of the external terminal 3. For example, the display control unit 11 can display on the tablet terminal 2 an input screen for inputting the amount of groundwater seeping at the tunnel face, the groundwater seeping pressure at the tunnel face, and the drilling speed at each drilling depth, as well as core images of the cores collected by the drilling device 4 that drills forward from the tunnel face. In addition, for example, the display control unit 11 can display the amount of groundwater seeping at the tunnel face, the groundwater seeping pressure, the drilling speed, and the core images input from the tablet terminal 2 on multiple external terminals 3. The decision unit 12 determines the survey conditions for the spring water survey based on the approval operations of each external terminal 3. Details of the survey conditions will be described later. The drilling DB13 stores data for the drilling process. Measurement DB14 stores data from the measurement process.

[0017] (Operation overview of drilling device 4) The operation overview of the drilling device 4 will be described. Details of the drilling device 4 are disclosed, for example, in Japanese Patent Publication No. 2021-147751. The drilling device 4 in this embodiment is a core drilling type that allows for core recovery. The operation of the drilling device 4 can be mainly divided into a drilling process and a measurement process. Figure 1 illustrates the configuration of the drilling device 4 in the drilling process.

[0018] The drilling device 4 in the drilling process comprises a drilling rod 41 and an outer bit 42 connected to the tip of the drilling rod 41. The drilling device 4 can form a borehole BH by transmitting rotational force from a boring machine (not shown) through the drilling rod 41 to the outer bit 42. The face side opening of the borehole BH is fixed with a filler material (not shown) by installing a mouth protection tube 43. The drilling rod 41 consists of a hollow cylindrical member and is constructed by connecting a plurality of rod components (tube materials) in the axial direction. The outer bit 42 has an annular shape.

[0019] In the drilling process, a borehole BH is drilled toward the face using a drilling rod 41 with an outer bit 42 fixed to its tip. As the drilling rod 41 rotates around its central axis by the power of a boring machine (not shown), the outer bit 42 cuts the cross-section of the ground G. Due to the cross-sectional cutting by the outer bit 42, a core is contained within the hollow part of the outer bit 42. By attaching a recovery device (not shown) to the face side of the drilling device 4, a core of a predetermined axial length can be recovered (collected).

[0020] The section from the face-side borehole opening of the drilling device 4 to the ground-side end of the borehole BH formed by drilling through the groundwater zone G0 will be referred to as the "drilling section". During the drilling process, the drilling device 4 can measure the pressure and volume of water in the seepage zone G0 that flows from the inside of the outer bit 42 into the inside of the drilling rod 41. Specifically, the groundwater pressure can be measured as the seepage pressure by reading the value indicated by the pressure gauge 44 installed at the borehole end of the drilling rod 41. In addition, the amount of groundwater can be measured as the seepage volume by opening the valve 45 at the borehole end of the drilling rod 41. The seepage pressure and seepage volume are associated with the drilling section.

[0021] Figure 2 is an explanatory diagram of the measurement process of the drilling device. The drilling device 4 in the measurement process is equipped with a packer device 47. The outer bit 42 is set back toward the face side of the seepage zone G0. The packer device 47 is fed into the internal cavity on the tip side of the drilling rod 41 from the face side of the drilling device 4. Furthermore, the packer section 48 provided at the tip of the packer device 47 is fed through the outer bit 42 until it is exposed inside the borehole BH. After that, when the packer section 48 is expanded in a known manner, the packer section 48 adheres tightly to the borehole wall of the borehole BH, closing the borehole BH. This prevents groundwater (seepage water W0) from flowing into the borehole opening side of the packer section 48. In addition, only seepage water W0 from the ground G ahead of the packer section 48 can be reliably captured. Seepage water W0 is taken in from the tip of the intake pipe 49 and transported toward the borehole opening side.

[0022] The section from the closure point of the packer section 48 to the ground-side end of the borehole BH formed by drilling through the spring water zone G0 will be referred to as the "measurement section." In the measurement process, the drilling device 4 can measure the pressure and volume of spring water W0 taken in from the tip of the intake pipe 49. Specifically, by reading the value indicated by the pressure gauge (not shown) installed at the borehole end of the intake pipe 49, the pressure of the spring water W0 can be measured as the section spring water pressure. In addition, by opening the valve 46 at the borehole end of the intake pipe 49, the volume of spring water W0 can be measured as the section spring water volume. The section spring water pressure and section spring water volume are associated with the measurement section. There are various methods for measuring the amount of spring water in a section, and it is not particularly limited. For example, a bucket to receive the spring water W0 discharged from the intake pipe 49 and a stopwatch can be used. In this case, the worker 21 can measure and record the amount of spring water W0 accumulated in the bucket when the valve 46 is opened for a predetermined time as the amount of spring water in the section. The valve 46 can be opened and closed as needed. The amount of spring water W0 that is ultimately accumulated in the bucket may also be used as the amount of spring water in the section. Alternatively, a flow meter capable of measuring the amount of spring water W0 in the intake pipe 49 may be attached to the drilling device 4. In this case, the worker 21 can read the value of the flow meter to obtain and record the change in the amount of spring water in the section over time.

[0023] (Data entry) Figure 3 shows the data input screen for the drilling device. The tablet terminal 2 can display the input screen 50 shown in Figure 3, according to the control of the display control unit 11 of the information processing device 1. The input screen 50 displays, for example, spin buttons 51-56, transmit buttons 57-61, sensor measurement buttons 62-66, and a combo box 67.

[0024] The spin button 51 is a button for inputting the drilling depth of the borehole BH. The spin button 52 is a button for inputting the section of groundwater pressure during the measurement process. The spin button 53 is a button for inputting the amount of spring water flowing in each section during the measurement process. The spin button 54 is a button for inputting the seepage pressure at the borehole opening at the entered borehole depth. The spin button 55 is used to input the amount of seepage water at the borehole opening at the entered borehole depth. The spin button 56 is a button for inputting the expansion pressure (packer pressure) of the packer section 48 during the measurement process.

[0025] The transmit buttons 57-61 transmit the input section spring pressure, section spring volume, mouth spring pressure, mouth spring volume, and expansion pressure, respectively, to the information processing device 1. The information processing device 1 can display the received section spring pressure, section spring volume, mouth spring pressure, mouth spring volume, and expansion pressure on the external terminal 3. Furthermore, if the drilling device 4 is equipped with a dedicated sensor, the sensor measurement buttons 62-66 can be used to transmit the section spring pressure, section spring volume, mouth spring pressure, mouth spring volume, and expansion pressure measured by the sensor to the information processing device 1. The combo box 67 is a button for selecting or entering the location where the collected core was located in the ground G0 as the drilling depth. The worker 21 can take a picture of the collected core by operating the capture button 67-1, check the image of the captured core by operating the image confirmation button 67-2, and send the image of the captured core to the information processing device 1 by operating the upload button 67-3. The information processing device 1 can display the received core image on the tablet terminal 2 and the external terminal 3.

[0026] (Consideration of survey specifications) Figure 4 shows an example of a screen for examining groundwater investigations. The external terminal 3 can display the examination screen 70 shown in Figure 4, according to the control of the display control unit 11 of the information processing device 1. The examination screen 70 displays, for example, a core photograph 71, a drilling speed graph 72, a groundwater flow rate graph at the source 73, and a groundwater pressure graph at the source 74.

[0027] Core photograph 71 is image data of cores taken from the drilling device 4, arranged according to the drilling depth in which the core was present. The drilling speed graph 72 plots the forward speed of the outer bit 42, which drills using the rotational force of the boring machine, at each drilling depth. The method for measuring the drilling speed is well known. The water seepage graph 73 plots the water seepage amounts entered on the input screen 50 for each drilling depth. The water seep pressure graph 74 is a graph plotting the water seep pressure at the entrance of the borehole, entered on the input screen 50, for each borehole depth. Those using external terminal 3 can refer to the review screen 70 and review the survey specifications for the spring water survey.

[0028] Figure 5 is an explanatory diagram (part 1) for determining the survey location for the spring water survey, where (a) is a graph of drilling speed and spring water volume at the mouth for each drilling depth, and (b) is a graph of drilling speed and spring water pressure at the mouth for each drilling depth. Figure 6 is an explanatory diagram (part 2) for determining the survey location for the spring water survey. The contents of Figures 5 and 6 are essentially the same in terms of display configuration as the contents of the examination screen 70 in Figure 4 (disregarding differences in numerical values).

[0029] For example, referring to Figures 5(a) and (b), an increase in the amount and pressure of groundwater seeping at the borehole can be observed in the borehole section with a borehole depth of 30[m] to 40[m]. From this, it can be estimated that the outer bit 42 penetrated the groundwater zone in the borehole section of 30[m] to 40[m]. Therefore, those involved should investigate the borehole section of 30[m] to 40[m]. <1> This can be set. Survey location <1> In response, candidate sections for measuring the section's spring water volume and section's spring water pressure can be prepared. Also, the survey location <1> The packer portion 48 can be expanded to a position closer to the face of the hole (closed position). Furthermore, an increase in the amount of groundwater seeping from the mouth can be confirmed in the drilling section where the drilling depth is 53[m] to 60[m]. From this, it can be estimated that the outer bit 42 penetrated another groundwater area in the drilling section from 53[m] to 60[m]. Therefore, those involved should investigate the drilling section from 53[m] to 60[m]. <2> This can be set. Survey location <2> In response, candidate sections for measuring the section's spring water volume and section's spring water pressure can be prepared. Also, the survey location <2> The packer portion 48 can be expanded to a position closer to the face of the hole (closed position).

[0030] Furthermore, referring to Figure 6, for example, it can be seen that the drilling speed in the drilling section with a drilling depth of 0[m] to 30[m] is large (average 0.2[m / min]). Also, according to image 75 of the core taken in the drilling section of 0[m] to 30[m], it can be seen that the entire core is fractured. From this, it can be inferred that the ground in the drilling section of 30[m] to 40[m] is extensively fractured and brittle, which accelerated the drilling of the outer bit 42, and that the drilling section of 0[m] to 30[m] is a fractured zone. On the other hand, it can be seen that the drilling speed in the drilling section with a drilling depth of 30[m] and above is small (average 0.07[m / min]). Also, according to image 76 of the core taken in the drilling section of 30[m] and above, it can be seen that the entire core is healthy rock (very little fracture). From this, it can be inferred that the entire ground in the drilling section from 30m onwards was healthy rock and solid, which suppressed the drilling of the outer bit 42.

[0031] When the packer section 48 is expanded to close the borehole, it is preferable to make the packer section 48 in close contact with the healthy rock rather than the fractured zone. Therefore, those involved can set the drilling section from 30[m] as the closing position of the packer section 48. For the drilling section from 30[m], candidate sections for measuring the section's seepage volume and section's seepage pressure can be prepared. In addition, since the hardness of the healthy rock can be estimated from the drilling speed, candidate expansion pressures for the packer section 48 can be set that avoid fracture of the healthy rock.

[0032] Figure 7 shows an example of the approval screen for the survey conditions. The external terminal 3 can display the approval screen 80 shown in Figure 7, according to the control of the display control unit 11 of the information processing device 1. The approval screen 80 displays the survey position [m], occlusion position [m], packer expansion pressure [Pa], survey time [min], and number of surveys [times].

[0033] The survey locations are within the drilling sections for the spring water survey, as determined through discussions among the relevant parties. The survey locations can be determined primarily based on the spring water volume and pressure at the source. The closure location is determined through discussions among the parties involved and is the position of the drilling section where the packer section 48 will be expanded. The closure location can be determined mainly based on the drilling speed and core images. Once the closure location is determined, the measurement sections for the section's seepage volume and seepage pressure can be determined. The packer expansion pressure is the pressure at which the packer section 48 is expanded, as determined through discussions among the parties involved. The packer expansion pressure can be determined primarily based on the inlet spring water pressure. More specifically, a pressure sufficiently higher than the inlet spring water pressure can be set as the packer expansion pressure. The survey duration is the time required for one survey in the measurement section determined by the blockage of packer section 48, as decided through discussions among the relevant parties. The survey duration can be determined mainly based on the excavation speed and core images. The number of surveys conducted is determined through discussions among the relevant parties, and refers to the number of times surveys are conducted within a predetermined time frame with changes to the measurement section. The predetermined time frame can be, for example, 4-5 times during which tunnel excavation is interrupted, but is not limited to this. The number of surveys conducted can be determined primarily based on the excavation speed and core images. Consultations among the parties involved may, for example, be conducted via video conferencing, wireless communication, or direct dialogue, but are not limited to these methods.

[0034] If there are no problems with the survey conditions displayed on the approval screen 80, each party involved operates the external terminal 3 and clicks the approval button 81 (approval operation). If they request improvements, they click the rejection button 82. The decision unit 12 determines the survey conditions for the spring water survey based on all the approval operations of the parties involved.

[0035] (Measurement details) Figure 8 shows an example of the measurement screen during the measurement process. During the measurement process, worker 21 measures the section spring pressure and section spring volume according to the determined survey conditions. For example, worker 21 can input the measured section spring pressure and section spring volume by operating the spin buttons 52 and 53 on the input screen 50 of Figure 3, which is displayed on the tablet terminal 2, and transmit them to the information processing device 1. Worker 21 can also input the measured mouth spring pressure and mouth spring volume by operating the spin buttons 54 and 55 on the input screen 50 of Figure 3, which is displayed on the tablet terminal 2 (the drilling device 4 can measure the mouth spring pressure and mouth spring volume even while measuring the section spring pressure and section spring volume). Worker 21 can also input the measured packer pressure by operating the spin button 56 on the input screen 50 of Figure 3, which is displayed on the tablet terminal 2. The input of section spring pressure, section spring volume, spring pressure at the source, spring volume at the source, and packer pressure can be performed at predetermined intervals from the start of measurement. The external terminal 3 can display the measurement screen 90 shown in Figure 8, in accordance with the control of the display control unit 11 of the information processing device 1. For example, a time-series graph 91 is displayed on the measurement screen 90.

[0036] The time-series graph 91 plots the spring water pressure at the source (dashed line), the section spring water pressure (thick solid line), and the packer pressure (thin solid line), which were entered on the input screen 50, for each elapsed time since the start of measurement. Personnel using the external terminal 3 can understand the condition of the spring water zone by referring to the measurement screen 90. Personnel can also refer to the time-series graph 91 to determine whether the packer device 47 is functioning normally. Specifically, persons monitor both the spring water pressure beyond the packer section 48 (section spring water pressure) and the spring water pressure in front of the packer section 48 (source spring water pressure). As a result of the monitoring, persons can identify the portion where the section spring water pressure curve (thick solid line) and the source spring water pressure curve (dashed line) show different pressure behaviors as a hydraulic separation. Personnel can analyze the identified hydraulic separation to determine whether the packer device 47 is functioning normally.

[0037] Note that the display of the time-series graph 91 is merely an example. For example, the time-series graph 91 may be a graph plotting the section spring pressure, section spring volume, and packer pressure entered on the input screen 50 for each elapsed time since the start of measurement. Alternatively, the time-series graph 91 may be a graph plotting the measured values, appropriately selected from the spring water pressure at the source, spring water volume at the source, section spring pressure, section spring volume, and packer pressure entered on the input screen 50, for each elapsed time since the start of measurement.

[0038] [process] The processing of the information processing device 1 will now be explained. Figure 9 is a flowchart of the processing in the first embodiment. First, the display control unit 11 of the information processing device 1 displays a data input screen on the tablet terminal 2 (step S1). The data input screen is the input screen 50 in Figure 3. The worker using the tablet terminal 2 inputs data for the drilling process (water pressure at the mouth, water volume at the mouth, core image, drilling speed) from the input screen 50. The information processing device 1 can receive the input drilling process data from the tablet terminal 2.

[0039] Next, the display control unit 11 of the information processing device 1 displays the drilling process data on the external terminal 3 (step S2). The external terminal 3 can display the drilling process data as the examination screen 70 in Figure 4. Next, the decision unit 12 of the information processing device 1 performs the approval process (step S3). Specifically, the display control unit 11 displays the approval screen 80 in Figure 7 on the external terminal 3 according to the command of the decision unit 12. Furthermore, if approval operations are received from all parties using the external terminal 3, the decision unit 12 determines the survey conditions shown on the approval screen 80 as the survey conditions for the spring water survey.

[0040] After step S3, the measurement process begins. The worker using tablet terminal 2 inputs measurement process data (e.g., spring water pressure at the source, section spring water pressure, packer pressure) from input screen 50 in Figure 3. The information processing device 1 can receive the input measurement process data from tablet terminal 2. Next, the display control unit 11 of the information processing device 1 displays the measurement process data on external terminal 3 (step S4). External terminal 3 can display the measurement process data as the measurement screen 90 in Figure 8. Personnel can then understand the conditions of the spring water zone. This completes the processing of the information processing device 1.

[0041] [effect] This embodiment can support the investigation of groundwater seepage ahead of the tunnel face during tunnel construction. More specifically, for example, worker 21 can input the acquired data (flow rate at the source, flow pressure at the source, drilling speed, and core image) from tablet terminal 2. This reduces the effort required for data acquisition. Also, for example, the acquired data can be immediately displayed on external terminals 3 held by each stakeholder. This reduces the effort required for data sharing. Furthermore, the effort required for data collection, organization, calculation, and visualization is also reduced. In addition, the data to be acquired is predetermined, reducing reliance on the experience of the stakeholders. This reduces the effort required to determine the survey specifications themselves. Furthermore, the time-series graph 91 allows for the immediate detection of any abnormalities during the measurement period (e.g., whether the packing mechanism is functioning correctly).

[0042] <Second Embodiment> The investigation support system of the second embodiment includes the features of the investigation support system of the first embodiment. When describing the second embodiment, explanations that overlap with those of the first embodiment may be omitted, and the differences from the first embodiment will be explained. [composition]

[0043] Figure 10 is a functional configuration diagram of the survey support system of the second embodiment. The survey support system 100A is a system that supports groundwater surveys related to groundwater zones located ahead of the tunnel face. The survey support system 100 comprises an information processing device 1A, a tablet terminal 2 as previously described, and an external terminal 3 as previously described.

[0044] Information processing device 1A is a computer equipped with hardware equivalent to that of information processing device 1, which has already been described. Information processing device 1A includes the display control unit 11 and the determination unit 12, which have already been described. In addition, information processing device 1A further includes a calculation unit 15, a core image acquisition unit 16, and a log management unit 17. Information processing device 1A also stores the drilling DB 13 and the measurement DB 14, which have already been described.

[0045] The calculation unit 15 calculates a predetermined value. For example, if the calculation unit 15 obtains the drilling start time, drilling interruption time, and drilling completion time for each drilling unit of a predetermined length from the tablet terminal 2, it can use the obtained drilling start time, drilling interruption time, and drilling completion time to calculate the drilling speed for each drilling unit of a predetermined length. The display control unit 11 can display the calculated drilling speed on the external terminal 3.

[0046] The core image acquisition unit 16 associates core images acquired from the tablet terminal 2, or core images input to the tablet terminal 2 from an external source, with the drilling depth. Here, "external" may be, for example, a camera or other imaging device that takes core images, or a terminal that can acquire and save core images from an imaging device in advance, but is not limited to these. The display control unit 11 can arrange the acquired core images according to the drilling depth and display them on the external terminal 3.

[0047] The log management unit 17 manages the drilling process data stored in the drilling DB 13. The log management unit 17 also manages the measurement process data stored in the measurement DB 14. The display control unit 11 can display the drilling process data and the measurement process data on the external terminal 3. In particular, the log management unit 17 can manage drilling logs that associate the date, drilling start time, drilling end time, drilling section, machine data, the seepage water pressure at the drilling site, the seepage water volume at the drilling site, and the drainage color. The display control unit 11 can display the drilling logs on the external terminal 3.

[0048] (Details of wireless communication) As shown in Figure 10, a sub-unit 24 is provided for the drilling device 4. The sub-unit 24 is electrically connected to a pressure gauge 44 that measures the seepage water pressure at the borehole. In addition, a master unit 23 is provided for the boring machine 22, which is connected to the drilling device 4 and provides driving force to the drilling device 4. The master unit 23 is electrically connected to the computer provided by the boring machine 22.

[0049] The master unit 23 and the slave unit 24 are connected in a way that enables communication. During the drilling process, the slave unit 24 can acquire the value indicated by the pressure gauge 44 as data for the groundwater pressure at the entrance of the borehole. The slave unit 24 can also transmit the groundwater pressure data to the master unit 23. For example, transmission between the master unit 23 and the slave unit 24 can be achieved using LPWA (Low Power Wide Area) wireless communication. LPWA wireless communication is useful for monitoring groundwater pressure and other parameters over a long period of time.

[0050] The master unit 23 can transmit the spring water pressure data acquired from the slave unit 24 to the information processing device 1A via the network. The display control unit 11 can display the spring water pressure data on the tablet terminal 2 and the external terminal 3. Personnel in remote locations using the external terminal 3 can determine the steady state of the spring water pressure change in real time. In addition, the worker 21 using the tablet terminal 2 can stop measuring the spring water pressure after confirming the pressure change and receiving a decision from the person in charge. The information processing device 1A can store and record the final measurement value at the time of stopping in the drilling DB 13. The display control unit 11 can display the final measurement value of the spring water pressure on the spring water pressure graph 74 (Figure 4).

[0051] Furthermore, in the measurement process, the drilling device 4 is equipped not only with a pressure gauge 44 for measuring the seepage pressure at the borehole, but also with a pressure gauge for measuring the seepage pressure in the section and a pressure gauge for measuring the packer pressure. In addition, three types of sub-units (one of which is sub-unit 24) are provided for the drilling device 4. Each of the three sub-units is electrically connected to the three types of pressure gauges mentioned above.

[0052] The master unit 23 and the three types of slave units are connected in a communication-enabled manner. During the measurement process, each of the three types of slave units can acquire data on the spring water pressure at the source, the section spring water pressure, and the packer pressure, and transmit this data to the master unit 23. The master unit 23 can transmit the data on the spring water pressure at the source, the section spring water pressure, and the packer pressure acquired from the three types of slave units to the information processing device 1A via the network. The display control unit 11 can display the data on the spring water pressure at the source, the section spring water pressure, and the packer pressure on the tablet terminal 2 and the external terminal 3. Personnel in remote locations using the external terminal 3 can monitor the time changes in the spring water pressure at the source, the section spring water pressure, and the packer pressure (see explanation with reference to Figure 8).

[0053] The information processing device 1A can perform initial value correction on the inlet water pressure data acquired in the drilling process, the inlet water pressure data acquired in the measurement process, the section water pressure data, and the packer pressure data, in response to a request from the tablet terminal 2 or external terminal 3. This allows accurate pressure values ​​to be obtained even if there is a shift in the zero point of the pressure gauge.

[0054] (Details of calculating the excavation speed) Figure 11 shows examples of screens related to the measurement of drilling time in the drilling process, where (a) is an example of a screen when drilling is stopped, (b) is an example of a screen when drilling is in progress, and (c) is an example of a screen when drilling is interrupted. The tablet terminal 2 can display the time measurement screen 110 of Figure 11 according to the control of the display control unit 11 of the information processing device 1A. The time measurement screen 110 displays, for example, a rod number display field 111, a start button 112, a pause button 113, a complete button 114, machine data display fields 115 to 119, a combo box 120, and a field notebook button 121.

[0055] The rod number display field 111 is a field that displays the number of the last drilling rod 41 to be added in the drilling process, among the drilling rods 41 that are connected sequentially from the outer bit 42. The start button 112 is used to input the start timing for drilling, or the timing for resuming drilling after an interruption. The interrupt button 113 is a button for inputting the timing to interrupt the drilling process. The "Complete" button 114 is used to input the completion timing for drilling.

[0056] The machine data display field 115 shows the machine data for the boring machine 22, namely the supply pressure [kgf / cm²]. 2 This is the field where the value of ] is displayed. The machine data display field 116 shows the machine data for the boring machine 22, which is the rotational pressure [kgf / cm²]. 2 This is the field where the value of ] is displayed. The machine data display area 117 shows the machine data for the boring machine 22, which is the water pressure [kgf / cm²]. 2 This is the field where the value of ] is displayed. The machine data display field 118 is a field that displays the value of the water supply rate [L / min], which is machine data related to the boring machine 22. The machine data display area 119 shows the percussion pressure [kgf / cm²], which is machine data related to the boring machine 22. 2 This is the field where the value of ] is displayed. The values ​​displayed in machine data display fields 115-119 can be pre-entered by worker 21 using tablet terminal 2. The combo box 120 is a button for selecting or entering the color of the wastewater discharged from the valve 45 during drilling. The field notebook button 121 is an input button for recording information using an electronic field notebook. When the field notebook button 121 is operated, the tablet terminal 2 can display, for example, a writable notebook page (e.g., blank paper, graph paper) in accordance with the control of the display control unit 11 of the information processing device 1A.

[0057] When worker 21 operates the start button 112, the drilling start time for the drilling rod 41 corresponding to the number displayed in the rod number display field 111 is entered into the tablet terminal 2. When worker 21 operates the complete button 114, the drilling completion time for the drilling rod 41 corresponding to the number displayed in the rod number display field 111 is entered into the tablet terminal 2. If drilling is interrupted due to trouble or other reasons, when worker 21 operates the interrupt button 113, the drilling interruption time is entered into the tablet terminal 2, and then when worker 21 operates the start button 112 again, the drilling start time (restart time) is entered into the tablet terminal 2.

[0058] The information processing device 1A can obtain the drilling start time, drilling interruption time, and drilling completion time for each drilling unit of a predetermined length (e.g., a drilling rod 41 with a pipe length of 1.5 m) from the tablet terminal 2. The calculation unit 15 can use the obtained drilling start time, drilling interruption time, and drilling completion time to calculate the drilling speed for each drilling unit of a predetermined length.

[0059] (Details of core image acquisition) In the input screen 50 shown in Figure 3, when worker 21 operates the combo box 67, a list of drilling depths (core depths) is displayed in a pull-down menu. Worker 21 can select one of the drilling depths displayed in the pull-down menu as the position where the core was located in the ground G0 for the sampled core. After selection, when worker 21 operates the capture button 67-1, the camera on the tablet terminal 2 is activated. Worker 21 can then photograph the sampled core with the camera. After taking the photograph, when worker 21 operates the image confirmation button 67-2, the tablet terminal 2 can display the core image, which is the result of the camera's capture. Worker 21 can then confirm the displayed core image. After confirmation, when worker 21 operates the upload button 67-3, the tablet terminal 2 can send the captured core image to the information processing device 1A, associating it with the drilling depth selected in the combo box 67. The core image acquisition unit 16 can associate the core image acquired from the tablet terminal 2 with the drilling depth. The display control unit 11 can arrange the core images acquired by the core image acquisition unit 16 according to the drilling depth and display them on the external terminal 3 (see, for example, Figure 4).

[0060] Core images can be prepared from external input (as already described). The core image acquisition unit 16 can associate the prepared core images with the drilling depth. The display control unit 11 can display the core images acquired by the core image acquisition unit 16, aligned by drilling depth, not only on the external terminal 3 but also on the tablet terminal 2 used by the worker 21.

[0061] After operating the image confirmation button 67-2, the core image displayed can be modified to remove unwanted areas, for example, by using the cropping function of the camera on the tablet device 2. Furthermore, even if the image is taken from an oblique angle, a rectangular core image can be created using the trapezoidal correction function of the camera. When the display control unit 11 displays the core image acquired by the core image acquisition unit 16 on an external terminal 3 or tablet terminal 2, it can enlarge the display. Furthermore, core images from different drilling depth ranges can be displayed simultaneously in two or three or more columns. This allows for easy comparison of cores from different drilling depth ranges.

[0062] (Details of the drilling log) Figure 12 shows an example of the drilling log screen. The log management unit 17 can create and manage drilling logs using drilling process data acquired from the tablet terminal 2. The tablet terminal 2 or external terminal 3 can display the drilling log screen 130 shown in Figure 12, according to the control of the display control unit 11 of the information processing device 1A. The drilling log screen 130 displays a table summarizing, for example, the date column 131, time column 132, drilling section column 133, supply pressure column 134, rotation pressure column 135, water supply pressure column 136, water supply volume column 137, percussion pressure column 138, spring water pressure column 139, spring water volume column 140, drainage color column 141, and remarks column 142. Records shown in the table are prepared for each drilling rod 41.

[0063] The date field 131 contains the date on which the drilling took place. The time field 132 is divided into a "Start Time" field and "Minute" and "Second" fields. The "Start Time" field registers the start timing of the drilling. The start timing of the drilling is when the start button 112 (Figure 11) is operated. The "Minute" and "Second" fields register the time (minutes and seconds) required for drilling. The time required for drilling is the time from when the start button 112 (Figure 11) is operated to when the complete button 114 is operated. The drilling section column 133 registers the section from the drilling start position to the drilling completion position. The section from the drilling start position to the drilling completion position corresponds to the number of the drilling rod 41 used for drilling (the number displayed in the rod number display column 111 (Figure 11)).

[0064] The supply pressure column 134 contains the supply pressure value, which is machine data related to the boring machine 22 set during drilling. The supply pressure value corresponds to the value in the machine data display column 115 (Figure 11). The rotational pressure column 135 contains the rotational pressure value, which is machine data related to the boring machine 22 set during drilling. The rotational pressure value corresponds to the value in the machine data display column 116 (Figure 11). The water pressure column 136 contains the water pressure value, which is machine data related to the boring machine 22 and was set during drilling. The water pressure value corresponds to the value in the machine data display column 117 (Figure 11). The water supply column 137 contains the water supply value, which is machine data related to the boring machine 22 and was set during drilling. The water supply value corresponds to the value in the machine data display column 118 (Figure 11). The percussion pressure column 138 contains the percussion pressure value, which is machine data related to the boring machine 22 set during drilling. The percussion pressure value corresponds to the value in the machine data display column 119 (Figure 11).

[0065] The column 139 for the spring water pressure at the entrance contains the spring water pressure value acquired by the master unit 23 from the slave unit 24 during drilling. The "Water seepage at the mouth" column 140 contains the value of the water seepage at the mouth obtained from the tablet terminal 2 during drilling. The water seepage at the mouth is the amount of drainage measured by the worker 21 after opening the valve 45 for each drilling hole using each of the drilling rods 41, and is a value entered by the worker 21 into the tablet terminal 2. The drainage color column 141 stores the value indicating the color of the seepage water at the borehole, which was entered during drilling. The drainage color value corresponds to the value selected or entered from the combo box 120 (Figure 11). The remarks column 142 contains text data acquired from tablet device 2 during drilling. This text data was entered as a comment by worker 21.

[0066] Those using external terminal 3 can directly refer to and analyze the values ​​shown in the drilling log. The drilling log will be useful in determining the survey specifications.

[0067] [effect] This embodiment provides the same effects as the first embodiment. Furthermore, it reduces the effort required to share data on drilling speed for each drilling unit of a predetermined length (e.g., one drilling pipe: 1.5m). Furthermore, it reduces the effort required to share core image data for each drilling depth. Furthermore, analyzing drilling logs can further reduce the effort required to determine the survey specifications themselves.

[0068] [others] (a): The tablet terminal 2 may display the screen that the external terminal 3 displays. In other words, the display control unit 11 may control the worker 21 to be able to view the review screen 70 in Figure 4, the approval screen 80 in Figure 7, and the measurement screen 90 in Figure 8. Therefore, the approval of the survey plan may include not only the approval operation of the relevant parties but also the approval operation of the worker 21. (b): The display control unit 11 may display an input screen on the worker's 21 tablet terminal that allows the input of machine data for the boring machine (not shown) used in the drilling process. The machine data may include, for example, the supply pressure [kgf / cm²]. 2 ], rotational pressure [kgf / cm 2 ], water pressure [kgf / cm 2 ], water flow rate [L / min], percussion pressure [kgf / cm 2 ], there are drainage colors, but these are not limited to these. The tablet terminal 2 can transmit machine data to the information processing device 1 through operation by the worker 21, etc. The information processing device 1 can display the received machine data on the tablet terminal 2 and the external terminal 3. Personnel at the external terminal 3 (and the worker 21 at the tablet terminal 2) can perform approval operations for the investigation policy based on the machine data. (c): The display control unit 11 can display a calculation screen on the external terminal 3 of the person in charge to calculate the dimensions of the intake pipe 49 provided in the packer device 47 used in the measurement process. For example, the intake pipe 49 can be constructed by connecting multiple rod components (pipe materials) in the axial direction. The person in charge can determine the closing position of the packer section 48 by determining the number of rod components for the intake pipe 49. The display control unit 11 may also display the calculation screen on the tablet terminal 2 of the worker 21. Approval operations based on the calculation screen can also be implemented. (d): The display control unit 11 can display a drilling log screen showing the history of the drilling process on the external terminal 3 of the person in charge. The drilling log screen displays data of the drilling process, such as the date, drilling section, start and end times of drilling in the drilling section, drilling depth, machine data, amount of groundwater seeping in at the mouth, groundwater seeping pressure at the mouth, and drainage color. This data is stored in the drilling DB 13, and the display control unit 11 can display the drilling log screen by referring to the drilling DB 13. The person in charge can decide on the investigation policy based on the contents of the drilling log screen. The display control unit 11 may also display the drilling log screen on the tablet terminal 2 of the worker 21. Approval operations based on the drilling log screen can also be implemented. (e): In the approval screen 80 of Figure 7, at least one of the following may be displayed: survey location [m], occlusion location [m], packer expansion pressure [Pa], survey duration [min], and number of surveys [times]. (f): In this embodiment, the drilling device 4 is of the core drilling type. However, the drilling device 4 may also be of the non-core drilling type. That is, an inner bit may be placed in the hollow part of the outer bit 42 (see Japanese Patent Application Publication No. 2021-147751). In this case, the closing position when the packer portion 48 is expanded can be determined based on the drilling speed. (g): This embodiment supported consensus building among stakeholders using the approval screen 80 in Figure 7. However, consensus building may also be achieved through other means, such as video conferencing using other screens, communication via wireless communication devices, or direct dialogue, without using the approval screen 80.

[0069] (h): It is also possible to realize technologies that appropriately combine the various technologies described in this embodiment. (i) The software described in this embodiment can be implemented as hardware, and the hardware can be implemented as software. (j): Other components of the present invention may be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0070] 100,100A Survey Support System 1,1A Information Processing Device 2. Tablet device (first terminal device) 3. External terminal (second terminal device) 4. Drilling equipment 11 Display Control Unit 12. Decision Section 13 Drilling DB 14 Measurement DB 15 Calculation Section 16 Core Image Acquisition Unit 17 Log Management Department 21 workers 47 Packer device 48 Packer section 49 Water intake pipe 50 Input screen 110-hour measurement screen 130 Drilling Log Screen

Claims

1. A display control unit displays an input screen on a first terminal device for inputting the amount of seepage water at the tunnel face for each drilling depth, the seepage water pressure at each drilling depth, the drilling speed for each drilling depth, and core images of the core collected by drilling, which are measured by a drilling device that drills forward from the tunnel face, and displays at least a portion of the multiple data input from the first terminal device on multiple second terminal devices. An information processing device comprising: a determination unit that determines investigation conditions including at least one of the following [1] to [4] based on the approval operation of each of the second terminal devices; and an information processing device. [1]: Survey location within the drilling section. [2] The closed position of the packer portion of the drilling device within the drilling section. [3] The expansion pressure of the packer portion. [4]: The time required for one survey in the measurement section determined by the blockage of the packer section, and the number of times the measurement section is changed within a predetermined time.

2. The information processing apparatus according to claim 1, wherein the display control unit causes the second terminal device to display the section spring water volume in the measurement section, the change over time of the section spring water pressure in the measurement section, the change over time of the spring water pressure at the mouth measured during the measurement of the section spring water volume and the section spring water pressure, and the change over time of the expansion pressure of the packer section.

3. The first terminal device displays an input screen for inputting the amount of seepage water at the tunnel face for each drilling depth, the seepage water pressure at each drilling depth, the drilling speed for each drilling depth, and the core image of the core collected by the drilling device, which drills forward from the tunnel face. The steps include: displaying at least a portion of the multiple data input from the first terminal device on multiple second terminal devices; An information processing method comprising the step of determining investigation conditions including at least one of the following [1] to [4] by an approval operation of each of the second terminal devices. [1]: Survey location within the drilling section. [2] The closed position of the packer portion of the drilling device within the drilling section. [3] The expansion pressure of the packer portion. [4]: The time required for one survey in the measurement section determined by the blockage of the packer section, and the number of times the measurement section is changed within a predetermined time.

4. The system further includes a calculation unit that, when the drilling start time, drilling interruption time, and drilling completion time for each drilling unit of a predetermined length are obtained from the first terminal device, calculates the drilling speed for each drilling unit of a predetermined length using the obtained drilling start time, drilling interruption time, and drilling completion time. The information processing apparatus according to claim 1, wherein the display control unit causes the calculated excavation speed to be displayed on the second terminal device.

5. The system further comprises a core image acquisition unit that associates the core image acquired from the first terminal device, or the core image input to the first terminal device from an external source, with the drilling depth. The information processing apparatus according to claim 1, wherein the display control unit arranges the acquired core images according to the drilling depth and displays them on the second terminal device.

6. The system further includes a log management unit that manages a drilling log that associates the date, drilling start time, drilling end time, drilling section, machine data, the seepage pressure at the drilling site, the seepage volume at the drilling site, and the drainage color. The information processing apparatus according to claim 1, wherein the display control unit causes the drilling log to be displayed on the second terminal device.

Images