JP5649221B2 - Tunnel construction information projection system - Google Patents

Description

  The present invention relates to a tunnel construction information projection system that is used in tunnel excavation work and projects construction information onto a face of the tunnel.

  In general, in tunnel excavation work, a hole is drilled in the tunnel face, charged with explosives, blown up, then struck, scraped, supported, primary lining, and rock bolts placed. . With this as one cycle, the excavation work cycle is repeated at a pitch of about 1.5 m.

Since it is possible to improve the efficiency of construction if information related to tunnel construction can be shown on the face, several such proposals have been made so far. For example, Patent Document 1 (Japanese Patent Laid-Open No. 5-79841) discloses a technique for marking a blast hole or the like on a tunnel face with a laser.
Japanese Patent Laid-Open No. 5-79841

  In the conventional system as described above, since a laser is used for marking on the face, basically only a spot-like display can be performed at one place. There was a problem that the amount of information to be displayed was very limited.

In order to solve the above-described problems, the invention according to claim 1 is a tunnel construction information projection system that supports tunnel construction by projecting information related to construction onto the face at the time of tunnel construction. A personal computer that projects data on the face of the face and stores data corresponding to the tunnel digging distance , and a projector that is connected to the personal computer and that projects on the face of the face based on an input from the personal computer And a total station that measures the distance between the face and irradiates the face with a specified reference point, and the personal computer uses the distance between the total station and the face to the excavation distance calculated, before being irradiated by the total station Based on four of the reference point on Kiriha plane, corrects the data of the original coordinate system corresponding to the calculated excavation distance, to generate corrected data of the projection coordinate system, wherein the correction data projector Is input.

  The invention according to claim 2 is the tunnel construction information projection system according to claim 1, wherein the data is design cross-sectional shape data.

  The invention according to claim 3 is the tunnel construction information projection system according to claim 1, wherein the data is data offset from design cross-sectional shape data.

  The invention according to claim 4 is the tunnel construction information projection system according to claim 1, wherein the data is rock bolt construction data.

  The invention according to claim 5 is the tunnel construction information projection system according to claim 1, wherein the data is drilling position work data.

  The invention according to claim 6 is the tunnel construction information projecting method according to claim 1, wherein the data is work information data.

  According to the tunnel construction information projection system of the present invention, it is possible to increase the amount of information to be displayed on the face at the time of tunnel construction, which can greatly contribute to the tunnel construction support.

It is a figure explaining the schematic structural example of the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure explaining the structure of the tunnel design data which 1st personal computer memorize | stores and holds. It is a flow explaining the procedure of the process of acquiring excavation distance (TD). It is a figure which shows a mode that the operation | work which matches a reference point for the correction process is performed. It is a figure which shows the flowchart of the reference point acquisition process for taking in reference point information in a 1st personal computer. It is a figure which illustrates notionally the data correction from the original data to the data for projection. It is a figure which shows the flowchart (the 1) of the projection process in the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the flowchart (the 2) of the projection process in the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the flowchart (the 3) of the projection process in the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the example of a projection display by the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the example of a projection display by the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the example of a projection display by the tunnel construction information projection system which concerns on embodiment of this invention. It is a figure which shows the example of a projection display by the tunnel construction information projection system which concerns on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a schematic configuration example of a tunnel construction information projection system according to an embodiment of the present invention.

  FIG. 1 shows a situation when various information is projected and displayed on the face of a face using the tunnel construction information projection system according to the present embodiment near the face in tunnel excavation work. The construction support is performed by projecting construction information onto the face of the tunnel by the tunnel construction information projection system according to the present embodiment.

  In the tunnel construction information projection system according to the present embodiment, the projector 10 is used to project and display various types of information on the face. Any projector 10 can be used as long as it can be connected to a personal computer and can project and display image data input from the personal computer. However, the projector 10 has a light source with a certain amount of light. It is preferable to use the same.

The first personal computer 20 is used to input image data and the like to the projector 10. As the first personal computer 20, a general-purpose computer that is currently popular can be used. Tunnel design data is stored in a storage unit such as a hard disk of the first personal computer 20. The structure of the tunnel design data stored and held by the first personal computer 20 is shown in FIG. Such tunnel design data includes “linear data” and “complementary data” that complements the “linear data”. In the “linear data”, “longitudinal data”, “crossing data”, and “design cross-sectional shape data” corresponding to the tunnel distance (TD) are stored. Each data belonging to these “linear data” is data based on an order for tunnel construction.

  The “complementary data” is composed of “rock bolt construction data”, “correction reference point data”, “work information data”, and “drilling position data” corresponding to the tunnel digging distance (TD). ing. Data other than “drilling position data” is data that can be prepared at the tunnel construction preparation stage, but “drilling position data” is log data that is accumulated while the tunnel is being dug.

  Among the above data, “design cross-sectional shape data” is data for storing the shape of the design cross-section corresponding to the excavation distance (TD). “Rock bolt construction data” is data that holds information related to rock bolt construction corresponding to the excavation distance (TD). Such data includes the number of lock bolts to be placed and the respective lock bolt placement angles.

  The “correction reference point data” is point data in the excavation cross section. For example, if the previous excavation cross-sectional shape data is projected as it is with an arbitrarily grounded projector, the original excavation cross-sectional shape cannot be projected and displayed. Therefore, in the tunnel construction information projection system according to the present embodiment, the reference point data for correction is irradiated by the total station, and the irradiated point and the bright spot emitted by the projector 10 are made to coincide with each other. The position of the reference point is acquired on the computer 20 side. Based on the acquired reference point, the excavation cross-sectional shape data is corrected, and this is projected and displayed by the projector 10, and the original excavation cross-sectional shape is projected and displayed.

  The “work information data” is text data that is projected and displayed by the projector 10 on the face. Such “work information data” can include, for example, text data describing a process or the like in tunnel construction.

  The “drilling position data” is data relating to the position of the drilled hole that is drilled to load the explosive for blasting. Since this drilling position is selected empirically in view of the state of the face, it is appropriately set while the tunnel is being dug, and is sequentially added and stored in the tunnel design data.

The total station 30 has a function of measuring a distance and an angle between the station and a point irradiated with the laser beam, and a function of emitting a laser beam passing through the position coordinate when a predetermined position coordinate is input. As long as it has, what kind of thing may be used. Such a total station 30 is generally provided with an interface that can be connected to an external information processing apparatus. In the present embodiment, the second personal computer 40 is connected. The second personal computer 40 is set to control the total station 30 and to perform data communication with the first personal computer 20 by wireless communication or wired communication.

In this embodiment, the tunnel design data is stored in the first personal computer 20, and the “reference point data for correction” of the tunnel design data is transmitted to the second personal computer 40 side. The total station 30 is controlled based on this, but the division is not necessarily limited to such a system configuration. For example, the second personal computer 40 side also stores and holds the tunnel design data so that the process of transmitting “correction reference point data” from the first personal computer 20 to the second personal computer 40 side is omitted. It may be.

  The setting and initial information acquisition of the tunnel construction information projection system according to this embodiment configured as described above will be described. When the tunnel construction information projection system according to this embodiment is to be used, first, each device is installed as shown in FIG. At this time, the projector 10 is installed on the center line as much as possible. Thereafter, the installed projector 10 and the total station 30 are not moved until the display by the projector 10 is completed with respect to the face surface to be displayed this time.

  Next, after confirming the setting as described above, a step of acquiring a tunnel excavation distance (TD) which is reference information for display next is executed. FIG. 3 is a flow for explaining the procedure of the process for obtaining the excavation distance (TD).

In FIG. 3, when the process is started in step S100, in the next step S101, the position coordinates of the total station 30 are obtained from several target positions whose position coordinates behind the tunnel excavation direction are already known. Identify.

  In the subsequent step S102, the distance L between the total station 30 and the face is measured. In step S103, the excavation distance (TD) is calculated from the position coordinates of the total station 30 and the distance L. Thereafter, the tunnel design data is referred to based on the excavation distance (TD). In step S104, the excavation distance (TD) acquisition process ends.

  Next, in the tunnel construction information projection system according to the present embodiment configured as described above, excavation cross-sectional shape data and the like are projected after the projector 10 is installed as a pre-stage for projecting various information to the facet. It is necessary to obtain several reference points for creating correction data at the time. In addition, although it is preferable to acquire four reference points, if the projector 10 can be installed on the center line, the reference points to be acquired can be reduced to three.

FIG. 4 is a diagram illustrating a state in which a work for adjusting a reference point is performed for correction processing in the tunnel construction information projection system according to the present embodiment. FIG. 5 is a flowchart of the reference point acquisition process for taking the reference point information into the first personal computer.

In order to acquire the reference point, first, the correction reference point data corresponding to the excavation distance TD (for example, (X ₁ , Y ₁ ) here) is acquired from the tunnel design data from the first personal computer 20. Then, this is transmitted to the second personal computer 40 side.

Next, the second personal computer 40 irradiates the cut face with the reference point based on the received correction reference point data. Here, TS ₁ is an irradiation point formed on the facet.

On the other hand, the projector 10 projects and displays _one bright spot P ₁ on the facet.
The bright spot P ₁ is programmed to move in response to an input from the pointing device of the first personal computer 20. Further, the bright spot P ₁ is projected on the basis of the position on the original coordinate system used for defining the “digging section shape data” stored in the tunnel design data.

Next, the flowchart of the reference point acquisition process in FIG. 5 will be described. This flowchart is executed by the first personal computer 20. When the process for acquiring the reference point is started in step S200, the correction reference point (X ₁ , Y ₁ ) is transmitted to the second personal computer 40 in the subsequent step S201. The second personal computer 40 that has received the correction reference point (X ₁ , Y ₁ ) from the first personal computer 20, based on this, the total station 30 irradiates (X ₁ , Y ₁ ) and the irradiation point TS _1. Control to form.

In step S202, first the personal computer 20 transmits the input data to project a bright spot P ₁ to the projector 10.

In step S203, whether the button on the GUI to be pressed when a match of the irradiation point TS ₁ and bright spots P ₁ is confirmed is assumed has been pressed is determined. If the determination in step S203 is yes, the process proceeds to step S204. On the other hand, in the case of NO, the process proceeds to step S206, and the bright spot P ₁ according to the input from the pointing device.
Control to move.

The process proceeds when the confirmation button is pressed, and in step S204, a process of storing the point (x ₁ , y ₁ ) on the original coordinate system corresponding to the bright spot P ₁ as a reference point is executed. Thereby, it is possible to grasp the correspondence between the point (x ₁ , y ₁ ) on the original coordinate system and the reference point (X ₁ , Y ₁ ) for correcting the projection data.

  In step S205, it is determined whether acquisition processing has been performed for all reference points corresponding to the excavation distance TD. If the determination in step S205 is no, the process proceeds to step S207, the next reference point is acquired from the tunnel design data, and the process returns to step S201 again. On the other hand, if the determination in step S205 is yes, the process proceeds to step S208 and the process is terminated.

  By performing, for example, four points on the face having a predetermined excavation distance as described above, the correspondence between the original coordinate system as shown in FIG. 6 and the projection coordinate system is grasped. Will be able to. Based on this, for example, it is possible to correct excavation cross-sectional shape data defined in the original coordinate system to a projection coordinate system and generate projection excavation cross-sectional shape data. FIG. 6 is a diagram for conceptually explaining data correction from original data to projection data based on the original coordinate system. Note that an algorithm for correction processing from the original coordinate system to the projection coordinate system can be appropriately selected and used.

  As described above, the projection processing after the correction reference point is taken into the first personal computer 20 will be described. In the tunnel construction information projection system according to the present embodiment, various data can be projected onto the facet under a plurality of display modes. 7 and 8 are flowcharts showing a projection process in the tunnel construction information projection system according to the embodiment of the present invention. This flowchart is processed by the first personal computer 20.

When the projection process is started in step S300, the process proceeds to step S301, where it is determined whether the display mode of the design cross-sectional shape line is requested by the user. When the determination in step S301 is YES, the process proceeds to step S302, and the original design cross-sectional shape data stored in the tunnel design data is corrected to the projection design cross-sectional shape data and projected by the projector 10. What is displayed on the facet by the projection in step S302 is, for example, as shown in L1 of FIG. If there is a mode change instruction from the user, the process proceeds to step S301 by the determination in step S303.

  In step S304, it is determined whether or not the spray line display mode is requested by the user. When the determination in step S304 is YES, the process proceeds to step S305, in which data is created by offsetting the original design cross-sectional shape data stored in the tunnel design data to the outer periphery, and this data is corrected to projection data. Then, the image is projected by the projector 10. What is displayed on the face by the projection in step S305 is, for example, as shown in L2 of FIG. If there is a mode change instruction from the user, the process proceeds to step S301 by the determination in step S306.

  In step S307, it is determined whether or not the display mode of the excavation cross-sectional shape line is requested by the user. If the determination in step S307 is YES, the process proceeds to step S308, where data is created by offsetting the original design cross-sectional shape data stored in the tunnel design data to the outer periphery, and this data is corrected to projection data. Then, the image is projected by the projector 10. What is displayed on the facet by the projection in step S305 is, for example, as shown at L3 in FIG. If there is a mode change instruction from the user, the process proceeds to step S301 by the determination in step S309.

  In step S310, it is determined whether or not the user has requested the lock bolt display mode. When the determination in step S310 is YES, the process proceeds to step S311, where the original rock bolt construction data stored in the tunnel design data is corrected to projection rock bolt construction data and projected by the projector 10. What is displayed on the facet by the projection in step S311 is, for example, as shown in Lb of FIG. If there is a mode change instruction from the user, the process proceeds to step S301 by the determination in step S312.

  In step S313, it is determined whether or not the drilling display mode is requested by the user. When the determination in step S313 is YES, the process proceeds to step S314, and the drilling position input screen is displayed on the display of the first personal computer 20. This drilling position input screen imitates the face of a face and can be created based on excavation cross-sectional shape data. From this display screen, the user can input the position where the drilling hole is provided on the face with a pointing device or the like.

  In step S315, it is determined whether or not the user has completely entered the drilling position. If the determination is YES, the process proceeds to step S316, and the drilling position data input by the user is added to the tunnel design data. By logging such drilling position data in the tunnel design data, it becomes possible to leave information during construction in the tunnel design data. In step S317, the drilling position data stored in the tunnel design data is corrected to the projection rock bolt construction data and projected by the projector 10. What is displayed on the facet by the projection in step S317 is, for example, as shown in H of FIG. If there is a mode change instruction from the user, the process proceeds to step S301 as determined in step S318.

In step S319, it is determined whether the work information display mode is requested by the user. When the determination in step S319 is YES, the process proceeds to step S320, where work information data, which is text data stored in the tunnel design data, is acquired and projected by the projector 10.

What is displayed on the facet by the projection in step S320 is, for example, as shown in M of FIG. If there is a mode change instruction from the user, the process proceeds to step S301 by the determination in step S321.

  In this embodiment, the information displayed in the work information display mode is described as an example of text data stored in the tunnel design data. However, the information displayed in the work information display mode is It is also possible to display information appropriately input from one personal computer 20. According to such a configuration, for example, matters to be notified to the worker in an emergency can be input from the first personal computer 20 and immediately displayed on the face.

  In step S322, it is determined whether the end of the process has been requested by the user. When the determination is YES, the process proceeds to step S323, and the process ends.

  According to the tunnel construction information projection system of the present invention as described above, it is possible to increase the amount of information to be displayed on the face at the time of tunnel construction, which can greatly contribute to the support of tunnel construction.

  In the above embodiment, the case where the projector 10 projects and displays the design cross-section shape line, the spray line, the excavation cross-section shape line, the lock bolt information, the drilling information, and the work information has been described. In the information projection system, it is possible to set not only these but also various other information to be projected and displayed on the face.

10 ... Projector 20 ... First personal computer 30 ... Total station 40 ... Second personal computer

Claims (6)

In the tunnel construction information projection system that supports tunnel construction by projecting information related to construction on the face of the face during tunnel construction,
A personal computer for storing data corresponding to the tunnel digging distance projected onto the facet;
A projector connected to the personal computer and performing projection on the facet based on an input from the personal computer;
A total station that measures the distance to the face and irradiates the face with a specified reference point;
The personal computer calculates the tunnel excavation distance from the distance between the total station and the face,
Based on the four reference points on the facet irradiated by the total station, the data of the original coordinate system corresponding to the calculated excavation distance is corrected, and correction data of the projection coordinate system is generated. The tunnel construction information projection system, wherein the correction data is input to the projector. The tunnel construction information projection system according to claim 1, wherein the data is design cross-sectional shape data. The tunnel construction information projection system according to claim 1, wherein the data is data offset from design cross-sectional shape data. The tunnel construction information projection system according to claim 1, wherein the data is rock bolt construction data. The tunnel construction information projection system according to claim 1, wherein the data is drilling position work data. The tunnel construction information projection method according to claim 1, wherein the data is work information data.

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