JP2011001698A - Tunnel excavation wall face development display, display method and display program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display an outbreak, a scaling amount, positions thereof, to be got easily and accurately, based on an observed result of an excavation wall face, at the time of tunnel excavation work, to easily evaluate and manage the excavation wall face, without complicating working during one cycle of the tunnel excavation work, to shorten a term of works, and to enhance execution precision.SOLUTION: A screen is divided into a development display area A and a data display area B, the development display area A is divided into left and right sides a1, a3, the development display area A divided into left and right sides is displayed with the left side wall face development a1 and the right side wall face development a3 of a display mode with each position in response to the scaling/outbreak of a wall face with an abscissa of an advancing length of making a direction directed from an outside to the center serve as an advance direction, and with an ordinate axis serve as a wall face distance from a top end of an upper side up to a batholith, and the data display area B is displayed with a data of a position selection-indicated on the development.

Description

  The present invention relates to a tunnel excavation wall surface development display device, a display method, and a display method for displaying a left side wall development view and a right side wall development view of a display mode corresponding to hit / excess based on a difference between a design value and an actual measurement value during tunnel excavation work, and It relates to a display program.

  NATM (New Austrian Tunneling Method) is a standard underground excavation method for mountain tunnels. NATM uses the support materials such as spray concrete, rock bolts, steel support works, etc. as appropriate based on the idea of maintaining the stability of the tunnel by effectively using the support capacity and strength of the natural ground. It is a construction method to construct a tunnel structure integrated with a mountain. In NATM, construction management is carried out by on-site measurement, the behavior of natural ground is grasped, and mechanical studies are conducted. Therefore, a series of measurement management operations that collect a lot of data during construction, analyze and evaluate the data, and present countermeasures are very important elements. In particular, it is required to smoothly perform measurement work, analysis of the data, and output of evaluation results.

  Generally, in tunnel excavation work, tunnel faces are drilled and charged with gunpowder, blown up, then slashed, scraped, supported, primary lining, and placed with rock bolts. Using this as a construction unit for one cycle, the excavation construction cycle is repeated, for example, at a pitch of about 1.5 m. Then, the displacement of the sky section in the tunnel and the behavior of the natural ground are measured at the rear, and after confirming that the behavior of the natural ground has stabilized, the final secondary lining is performed. The cross section of this secondary lining is the design cross section of the completed construction in the tunnel excavation work. The concrete thickness of the secondary lining (secondary lining thickness) is determined by the strength and stability of the natural ground. Along with this, the adoption of the inner side (back side) support work, the concrete blast thickness of the primary lining, the number of times, etc. are determined, and the first excavation section is determined according to these conditions.

  The hitting is a change in a section where the cross section is insufficient to secure the concrete thickness of the secondary lining, and is usually determined by the operator's visual judgment. If the hitting is insufficient in the primary lining section before the secondary lining, it will be necessary to rearrange the machinery and perform the winning work, which wastes working time and costs. Become more. On the contrary, Yohori is filled with primary lining by spraying concrete, but if there is a large amount of Yohbori, the amount of slippage work and the amount of concrete spraying of the primary lining will increase. More time and money is wasted.

  In tunnel excavation work, the measurement management work in the construction cycle is very important in order to reduce the wasteful work and costs as much as possible and to reduce the time required for each work and to perform the work efficiently. In particular, in order to accurately perform hitting while reducing overexcavation, it is possible to easily and accurately grasp the overexcavation and hit amount and their positions based on the actual measurement results of the excavation wall in each construction cycle. Is required. In order to support efficient tunnel excavation work, various techniques have been proposed in the art for displaying the measurement results of the sky section in the tunnel and for marking by projecting work reference points with laser light. (For example, see Patent Documents 1 to 3).

The display method of Patent Documents 1 and 3 for displaying the measurement result of the tunnel internal cross section displays the expanded view of the internal cross section on the left side of the screen, and displays the cross section of the internal cross section of the measurement object on the right side. A list of the measurement results of each inner section is displayed. The development is based on the center line CL of the inner cross section, the circumferential distance is taken on the vertical axis, the excavation distance TD and the distance STA are taken on the horizontal axis, and the spraying thickness of the wall, the displacement of the spraying wall, the lining thickness, the lining One of the wall displacement is developed. In addition, the laser marking method of Patent Document 2 that projects and marks work reference points with laser light is a surveying instrument, and a telescope unit that performs collimation for distance measurement and angle measurement, and rotation / oscillation drive thereof. A laser beam projection device and a control unit that controls the drive unit to collimate the collimation target at a predetermined position with the telescope unit and project the laser beam onto the collimation target to project the laser beam Relative angle data is obtained, and laser light is projected on the basis of distance measurement from the surveying instrument, angle measurement data, and marking position data.

Japanese Patent No. 3449708 Japanese Patent No. 3666816 Japanese Patent No. 3842771

  However, in the conventional display methods of Patent Documents 1 and 3 that display the measurement results of the tunnel internal cross section, it is difficult to recognize the correspondence between the points in the developed view and the actual tunnel internal cross section in the field. There is a problem that misunderstandings are likely to occur. That is, as a development view, since the circumferential distance based on the center line CL of the inner cross section is developed on the vertical axis of the contour drawing, when one point in the development view is designated, for example, which of the top end The position on the opposite side (right side or left side) may be confused for a moment and the opposite position may be recognized by misunderstanding. As a result, there arises a problem that the work position cannot be set accurately.

  In the present invention, the tunnel excavation work is displayed so that the overexcavation and hit amount and the position thereof can be easily and accurately grasped based on the actual measurement result of the excavation wall surface, and the work can be performed in one cycle of the tunnel excavation work. It is possible to easily evaluate and manage excavation cross sections and lining cross sections without complications, and to shorten the work period and improve the construction accuracy.

  To that end, a tunnel excavation wall surface display apparatus according to the present invention includes a data storage means for storing design value data and actual measurement value data of a tunnel cross section, an input means for inputting a range of wall expansion, and an instruction input by the input means. A display for displaying a wall surface development diagram in a display mode corresponding to the hit / excavation in which each position of the wall surface is a difference between the design value data stored in the data storage means and the actual measurement value data based on the range of the wall surface expansion. Control means, and the display control means divides the screen into a developed view display area and a data display area, divides the developed view display area into left and right, and horizontally expands into the developed view display area divided into left and right. Each position of the wall surface according to the above-mentioned hit / excavation, with the traveling length in which the direction from the outer side to the center is the digging direction, and the vertical axis is the wall surface distance from the top edge of the upper side to the bottom plate of the lower side The left side wall development view and the right side wall development view of the display mode are displayed, and the data at the position instructed to be selected on the development view is displayed in the data display area, and the display control means is further provided on the development view. It is possible to switch to the display of a sectional view including the position where the selection is instructed.

  In the tunnel excavation wall surface display method, the screen is divided into a development view display area and a data display area, the development view display area is divided into left and right, and the horizontal axis is divided from the outside into the development view display area divided into left and right. The left side wall development of the display mode corresponding to each position where the position of the wall surface is the traveling length in which the direction toward the center is the digging direction, and the vertical axis is the wall surface distance from the top edge of the upper side to the bottom plate of the lower side. And the right side wall development view are displayed, the data at the position instructed to be selected on the development view is displayed in the data display area, and the selection instruction on the development view is instructed by the display switching instruction of the sectional view. The display is switched to a cross-sectional view including the position.

  In addition, a hit / surround calculation function for obtaining a difference between the design value data of the tunnel cross section and the measured value data as a hit / surround, and a screen is divided into a development view display area and a data display area, and the development view display area In the developed view display area divided into left and right, the abscissa is the progression length in which the direction from the outside to the center is the digging direction, and the ordinate is the wall surface from the top of the upper side to the bottom of the lower side Each position of the wall surface as the distance displays a left side wall development view and a right side wall development view of the display mode corresponding to the hit / excavation, and the data display area has a position of the position instructed to be selected on the development view. A tunnel excavation wall surface display program for causing a computer to perform a display function for displaying data, and further, as the display function, a selection instruction on the development view by a display switching instruction of a sectional view. And having a function of selectively displaying a cross-sectional view including the position being.

  According to the present invention, the screen is divided into a development view display area and a data display area, the development view display area is divided into left and right, and the horizontal axis is directed from the outside to the center in the divided development view display area. The left side wall development and the right side wall development of the display mode corresponding to each position of the wall surface where the vertical axis is the traveling length in the direction of excavation and the vertical axis is the wall surface distance from the top edge of the upper side to the bottom plate of the lower side Therefore, you can see the development on the left and right sides in the direction of excavation, that is, the face direction, as a left side wall development view and a right side wall development view, respectively, and understand the correspondence between the tunnel excavation site and the development view at a glance. , Misrecognition and misregistration can be eliminated. In addition, since the data at the position instructed to be selected on the development view is displayed in the data display area, it is possible to confirm the position instructed to select the hit / excavation recognized on the development view with the cursor by using the mouse. Can do. Furthermore, the data can be used as an instruction of a work point for winning by using the data as a position signal of the laser marker.

The figure explaining embodiment of the tunnel excavation wall surface expansion display apparatus which concerns on this invention The figure which shows the structural example of a tunnel excavation wall surface expansion display apparatus Diagram explaining cross-sectional angle, design wall surface coordinates, measured wall surface coordinates The figure which shows the example of composition of design value data, measured value data, design measured difference data The figure explaining the display processing by the display apparatus of this embodiment The figure which shows the Example of the display screen of the tunnel excavation wall surface expansion display apparatus which concerns on this invention Diagram for explaining an example of tunnel excavation work using a three-dimensional laser scanner Diagram explaining the construction cycle of tunnel excavation work

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating an embodiment of a tunnel excavation wall surface development display device according to the present invention, FIG. 2 is a diagram illustrating a configuration example of a tunnel excavation wall surface development display device, and FIG. 3 is a cross-sectional angle, a design wall coordinate, an actual measurement wall coordinate FIG. 4 is a diagram showing a configuration example of design value data, measured value data, and design measured difference data. In the figure, A is a development view display area, a1 is a left wall development display area, a2 is a face cross section display area, a3 is a right wall development display area, B is a data display area, 1 is design value data, and 2 is an actual measurement. Value data, 3 is a design measurement difference calculation processing unit, 4 is a design measurement difference data, 5 is a position data extraction unit, 6 is a wall surface data extraction unit, 7 is a position calculation processing unit, 8 is a wall surface data expansion processing unit, and 9 A display processing unit 10 indicates a cursor position detection unit.

  The embodiment of the tunnel excavation wall surface development display device according to the present invention shown in FIG. 1 is divided into two left and right screens in the development view display area A for displaying the tunnel excavation wall development, and the divided left and right screens are respectively on the left side. A development view is displayed as the wall surface development view display area a1 and the right side wall development view display area a3.

  The left wall development map display area a1 has a horizontal axis as a travel length (digging distance, distance), a direction from the left end toward the center as a dug direction, and a vertical axis as a wall distance from the top edge of the upper side to the bottom of the lower side. To do. Similarly, in the right side wall development map display area a3, the horizontal axis is the traveling length, the direction from the left end toward the center is the digging direction, and the vertical axis is the wall surface distance from the top edge of the upper side to the bottom of the lower side.

  The wall surface development views displayed in the left side wall development view display area a1 and the right side wall development view display area a3 are designated by, for example, a travel length TD (Total Distance) indicating a digging distance that is a specific point of the tunnel and its front-rear width. The vertical and horizontal scale lines are displayed within the specified range. Then, each position of the wall surface data is expanded and displayed by, for example, a color, its density, saturation, luminance, mark, symbol, character, etc., in a display mode corresponding to the design measurement difference data.

  When the color is adopted as the display mode corresponding to the actually measured design difference data, for example, the win position is displayed in red and the overburden position is displayed in blue. Furthermore, with respect to the winning red, the display changes from thin to red, pink, and white according to the amount, the color changes from red to orange and yellow, and the dot size changes. An aspect etc. can also be employ | adopted.

  In the present embodiment, the face cross-section display area a2 is provided in a central area sandwiched between the left side wall development view display area a1 and the right side wall development view display area a3. In the face section display area a2, the tunnel section, its center line CL, and the height reference line SL of the tunnel section are displayed.

  In this way, the both sides of the face cross section display area a2 are set as the left side wall development view display area a1 and the right side wall development view display area a3. By setting the horizontal wall distance to the horizontal axis, the tunnel digging direction, the respective top edge, the bottom plate direction, and the wall surface position in the left wall development map display area a1 and the right wall development map display area a3 can be easily understood. It is a display of a simple wall development.

  In the present embodiment, the display screen is further divided into upper and lower parts, and the lower stage is used as the data display area B with respect to the upper development view display area A. In the data display area B, distance data, setting data, and the like of the development views of the left side wall development view display area a1 and the right side wall development view display area a3 displayed in the upper stage are displayed.

  As these data, for example, the tunnel progress length (digging distance) TD and its front-and-rear width, the vertical and horizontal scale widths, the display mode corresponding to the design measurement difference data, and the left-side wall development view. The position data indicated by the cursor on the development view of the display area a1 or the right side wall development view display area a3 is displayed. The position data includes the distance STa indicated by the cursor, the distance from the top, the distance from the reference line SL, the xyz coordinate, the distance from the reference line SL (vertical relative distance), and the distance from the center line TC. There is a separation (relative distance in the horizontal direction).

  The tunnel excavation wall surface development display device of the present embodiment has a configuration as shown in FIG. 2, for example, and uses design value data 1 for storing the coordinate data of the design wall surface of the tunnel, a light wave range finder or a three-dimensional laser scanner. Measured value data 2 for storing measured wall surface coordinate data of the tunnel measured in this way is prepared. Then, in order to display the tunnel excavation wall development shown in FIG. 1 based on the design value data 1 and the actual measurement value data 2, the design actual measurement difference calculation processing unit 3, the design actual measurement difference data 4, the position data extraction unit 5, the wall surface A data extraction unit 6, a position calculation processing unit 7, a wall surface data expansion processing unit 8, a display processing unit 9, and a cursor position detection unit 10 are provided.

The design wall coordinates of the tunnel are obtained based on the cross-sectional design, planar design (plane alignment: line on the plane at the center of the tunnel), longitudinal design (vertical alignment: line at the center of the tunnel), and transverse design. For example, as shown in FIG. 3, the design wall surface coordinates w _ij include design center coordinates c _i , design center line vertical angle α _i , horizontal angle β _i , and cross-sectional angle θ _{ij with} respect to the tunnel reference line SL. , Based on the distance d of the cross section from the center at the cross section angle θ _ij .

The design actual measurement difference calculation processing unit 3 calculates a difference Δd _ij between the design wall surface coordinates stored in the design value data 1 as the design actual measurement difference and whether the actual wall surface coordinates stored in the actual measurement value data 2 are inside or outside. It is what you want. For example, if the design measurement difference Δd _ij is a negative value, the actual measurement wall surface coordinate is a hit on the inside, and if the value is a positive value, the design is a digging on the outside. The actual design difference data 4 is stored as data indicating the amount of hit / excavation of the actual design difference Δd _{ij at} each wall coordinate obtained by the actual design difference calculation processing unit 3.

The position data extraction unit 5 extracts the wall surface coordinate data of the position selected and selected by the cursor by operating the mouse on the selected development view from the design measurement difference data 4. The wall surface data extraction unit 6 obtains, from the design measurement difference data 4, for example, the data of the design measurement difference Δd _ij at each wall coordinate in the range specified by the tunnel travel length (digging distance) TD (Total Distance) and the width before and after the tunnel. Extracted as the amount of hit / overmining.

  The position calculation processing unit 7 is based on the wall coordinate data of the position extracted by the position data extracting unit 5, the position travel length (distance), the distance from the top, the distance from the reference line SL, and the xyz coordinates. The distance from the reference line SL (vertical relative distance) and the distance from the center line TC (horizontal relative distance) are obtained. The wall surface data expansion processing unit 8 draws the data of the design measurement difference at each wall surface coordinate extracted by the wall surface data extraction unit 6 in the memory as a wall surface expansion diagram according to a predetermined display attribute.

  The display processing unit 9 performs display processing of each display area obtained by dividing the screen into the display areas shown in FIG. 1, for example, and displays the position data obtained by the position calculation processing unit 7 in the data display area B. The wall surface development view drawn in the memory by the wall surface data development processing unit 8 is displayed in the development view display area A. The cursor position detection unit 10 detects the position indicated by the cursor by the mouse operation in the wall surface development view displayed in the development view display area A, and sends this position to the position data extraction unit 5.

The design wall surface coordinate data of the tunnel stored in the design value data 1 includes, for example, as shown in FIG. 3, the travel length TD _i , the design center coordinate c _i , the design center line vertical angle α _i , and the horizontal direction. angle β for each _i, the cross-sectional design, plane design, longitudinal design, design wall coordinate w _ij in each cross section the angle theta _ij obtained based on cross design _{(x ij, y ij, z} ij) is.

Further, the measured wall surface coordinate data of the tunnel stored in the measured value data 2 includes, for example, as shown in FIG. 4, a travel length TD _i , a design center coordinate c _i , a design center line vertical angle α _i , Measured wall surface coordinates m _ij (x _ij ^′ _, y _ij ^′ _, z _ij ^′ ) at each cross-sectional angle θ _ij measured using a light wave range finder or a three-dimensional laser scanner for each horizontal angle β _i. .

For example, as shown in FIG. 4, the design actual difference data indicating the amount of hit / excavation stored in the actual design difference data 4 includes the progression length TD _i , the coordinates c _{i of} the design center, and the vertical direction of the design center line. The measured wall surface coordinates m _ij (x _ij ^′ _, y _ij ) with respect to the design wall surface coordinates w _ij (x _ij, y _ij, z _ij ) at each section angle θ _ij for each angle α _i and horizontal angle β _i. The difference Δd _{ij from} ^' _, z _ij ^' ) is negative, indicating that the measured wall is inward from the design wall if the value is negative, and if the positive value is an overexcavation in which the measured wall is outside the design wall Indicates.

FIG. 5 is a diagram for explaining display processing by the display device of the present embodiment. In the display processing of the wall surface development view, first, as shown in FIG. The value of the progress length is read (step S11), and the value of the front and rear width that is designated and input is read (step S12). Further, the value of the scale width on the wall development view designated and inputted is read (step S13).

  Thereafter, as wall surface development data, each wall surface coordinate in the range specified by the advancing length and the front and back width and its design measurement difference data are read (step S14), and the wall surface development view is developed and drawn in the memory. The developed view is displayed in the developed view display area A, and the distance data and setting data of the developed view are displayed in the data display area B (step S15).

  Further, in the position data display processing, as shown in FIG. 5B, the position designated by the cursor is detected by the mouse operation (step S21). Thereafter, the wall surface coordinate xyz of the position is calculated (step S22), and the travel length (distance distance) of the position is calculated (step S23). Further, the distance from the top of the position and the distance from the height direction reference line SL are calculated (step S24), the distance from the reference line SL (vertical relative distance), and the distance from the center line TC (horizontal direction). (Relative distance) is calculated (step S25) and displayed as selected station information in the data display area B (step S26).

〔Example〕
FIG. 6 is a diagram showing an embodiment of the display screen of the tunnel excavation wall surface expansion display device according to the present invention. In this embodiment, the progression length is from 352 + 81.0 m to 353 + 1.0 m in the development view display area A divided into screens. A wall development view with a range of is displayed. According to the above-described travel length and its front-rear width, this display range is a travel length of 352 + 91.0 m, a front-rear width of 10.0 m, and the travel length at the face is 352 + 81.0 m. As for the scale width, the main line has a width of 5.0 m, and a width of 1.0 m is set as an auxiliary line therebetween.

  The vertical axis is 0.0m from the top and the wall distance to the height reference line SL, and the distance to the underlying foot (bottom) is 5.0m wide, 1.0m wide auxiliary The lines can be displayed and read within a range of scale up to 12.0 m. The cursor is displayed at the position of the progression length (distance distance) Sta352 + 89.176 m, the distance 2.881 m from the top, and the distance 7.438 m from SL in the right side wall development view. In FIG. 6, the cursor is displayed as a large black circle, but may be displayed as “+”, “×”, an arrow, other marks or symbols, and the display mode of the position is changed, for example, brightness May be raised, blinked, or displayed in a special color.

  In the data display area B, data such as a base line position, an additional information display interval, a color legend, and selected station evaluation information are displayed. Here, the base line position is 1.0 m below SL, the main line, the scale width of the auxiliary line, the color legend divided into 6 parts from 0.05 to -0.05, the distance from the top (1) and The explanatory diagram of the distance (2) from the SL and the data of each distance and coordinates of the selected measuring point by the cursor are displayed.

  As described above, according to the embodiment, it is possible to accurately grasp at a glance the extent and range of hit / excess mining and the position thereof by the display form of the wall surface development view. In addition, when a desired position for which the hit / overexcavation is grasped in the wall development view is instructed with a cursor by a mouse operation, from the xyz coordinates of the position and the reference line SL as a selected measuring point of the selected instruction position Check the data display area B for distance (vertical relative distance), distance from the center line TC (horizontal relative distance), travel length (distance distance), distance from the top, and distance from the reference line SL. Can do.

According to this embodiment, by combining with the laser marking device and inputting the xyz coordinates displayed in the data display area B to the laser marking device, it is easy to confirm the selected measurement point designated by the cursor by laser marking. Therefore, it is possible to improve the accuracy of the work of winning and execute an accurate work. In addition, the section view including the selected station can be expanded from the progress length (distance distance) of the selected station specified by the cursor. By designating the position, it may be configured to switch to a sectional view as appropriate.

  An example of tunnel excavation work performed using the tunnel excavation wall surface development view of this embodiment will be described. FIG. 7 is a diagram for explaining an embodiment of tunnel excavation work using a three-dimensional laser scanner, and FIG. 8 is a diagram for explaining a construction cycle of tunnel excavation work. In the figure, 11 is a face surface, 12 is a drilling wall surface, 13 is a primary lining surface, 14 is a bottom plate, 15 is a drilling section, 16 is a reference section, 17 is a lock bolt, 31 is an anchor, 100 is a three-dimensional laser scanner, 200 Denotes a measurement data processing apparatus, and 300 denotes a target. The lower suffix L indicates the left wall surface, R indicates the right wall surface, and U indicates the top end surface.

  Fig. 7 (A) shows a side view of the mine before the primary lining in tunnel excavation work, and Fig. 7 (B) shows a top view of it. FIG. 7C shows an excavation cross section close to the face surface 11. In FIG. 7, the face surface 11 and the excavation wall surface 12 are in a state of being excavated by blasting or using a machine, and the primary lining surface 13 is a surface where concrete is sprayed on the excavated wall surface that has been hit.

  The excavation cross-section 15 shown in FIG. 7C shows the cross-sectional shape of the excavation wall surface 12, and the reference cross-section 16 has a cross-sectional shape corresponding to the primary lining that is larger than the design cross section or the planned cross section by the secondary lining thickness, for example. Show. The three-dimensional (3D) laser scanner 100 is installed on the bottom plate 14 behind the face in the tunnel, and scans the laser in the horizontal direction and the vertical direction, for example, and scans the horizontal angle (0 to 360 °) and the vertical angle (upward). 0 to 90 °, and 0 to 60 ° below), the distance to the laser irradiation point is measured.

  The three-dimensional laser scanner 100 may be placed on a heavy machine. The measurement data processing device 200 takes in the measurement data of the distance corresponding to the horizontal angle and the vertical angle from the three-dimensional laser scanner 100, performs various arithmetic processing based on the measurement data, and displays a wall development view or the like as appropriate. It is.

The target 300 has tunnel coordinates (x, y, z) and is detachably mounted on the left and right wall surfaces 13 _L and 13 _R of the primary lining surface 13. As the tunnel coordinates, public coordinates set by the so-called Geographical Survey Institute are used, but local coordinates unique to the tunnel set based on the public coordinates may be used.

  Next, as shown in FIG. 8, the construction cycle of tunnel excavation work using a three-dimensional laser scanner is performed by excavating the face surface 11 at a work pitch of one cycle, for example, about 1.5 m (step S31: Excavation process), excavation of the excavation is performed (step S32: excavation process). This excavation includes, for example, blast excavation and mechanical excavation in which holes are drilled at predetermined positions on the face 1 and charged with an explosive and ignited for explosion.

Then, the measurement process consisting of steps S33 to S38 is executed. In the measurement process, the targets 300 _L1 , 300 _L2 , 300 _R1 , and 300 _R2 are mounted at predetermined positions on the left and right wall surfaces 13 _L and 13 _R of the primary lining surface 13 (step S33), and the primary lining surface 13 behind the face is mounted. The three-dimensional laser scanner 100 and the measurement data processing device 200 are installed on the bottom plate 14 (step S34), and the excavation wall surface 2 is measured (step S35).

Next, the measurement data is processed to perform calculation processing between the actual measurement value data and the design value data (step S36). Based on the design actual measurement difference data obtained as a result of the calculation processing, for example, a wall development view is output on the display screen. (Step S37). And the targets 300 _L1 , 300 _L2 , 3
00 _R1 and 300 _R2 are removed (step S38).

  By confirming the hit from the wall surface development drawing, selecting with the cursor by the mouse operation and sending the position information to the laser marker, the hit is performed according to the projection position of the laser marker (step S39: winning process). After hitting, the primary lining by concrete spraying is performed (step S40: lining process), and the natural ground is reinforced by placing the lock bolts 17 (step S41: reinforcing process). When excavation is continued (step S42), the process returns to step S31 again and the same operation is repeated without ending the operation.

  The hitting process and the lining process are appropriately performed according to the support capacity, strength, stability, etc. of the natural ground, or the concrete spraying work is divided into primary and secondary. For example, if the ground is weak and there is a high risk of rock fragments and earth and sand collapsing, a simple concrete spraying may be performed first to stabilize the excavation surface, and then hitting may be performed. Further, the winning may be performed by visual judgment of the operator, and then the cross-sectional measurement may be performed to confirm the winning.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible. For example, in the above-described embodiment, the progression length and its front and rear width are designated and input as the range for displaying the wall development, but the progression length at both ends of the development view to be displayed may be designated and input. Further, the screen is divided into an upper part and a lower part of the development view display area A and the data display area B, and the development view display area A is divided into the left wall development view display area a1 and the right wall development view display area a3 and the face section sandwiched between them. Although the display area a2 is divided into three, the screen of the development view display area A and the screen of the data display area B are made different screens, the screen of the development view display area A is displayed, and the screen of the data display area B is displayed by a switching instruction. The display may be switched to.

  A ... development view display area, a1 ... left wall development view display area, a2 ... face cross section display area, a3 ... right wall development view display area, B ... data display area, 1 ... design value data, 2 ... actual measurement value data, DESCRIPTION OF SYMBOLS 3 ... Design measurement difference calculation processing part, 4 ... Design measurement difference data, 5 ... Position data extraction part, 6 ... Wall surface data extraction part, 7 ... Position calculation processing part, 8 ... Wall surface data expansion | deployment processing part, 9 ... Display processing part 10 ... Cursor position detector

Claims (6)

Data storage means for storing design value data and measured value data of the tunnel cross section;
An input means for instructing and inputting a range to be developed on the wall surface;
The wall surface of the display mode according to the hit / excavation in which each position of the wall surface is a difference between the design value data stored in the data storage unit and the actual measurement value data based on the range of the wall surface expansion input by the input unit Display control means for displaying a development view, and the display control means divides the screen into a development view display area and a data display area, and the development view display area is divided into left and right, and the development divided into left and right. In the figure display area, each position of the wall surface where the horizontal axis is the traveling length in which the direction from the outside to the center is the digging direction and the vertical axis is the wall surface distance from the top edge of the upper side to the bottom plate of the lower side A tunnel excavation wall characterized by displaying a left side wall development view and a right side wall development view of a display mode according to excavation, and displaying data at a position instructed to be selected on the development view in the data display area Open display device. 2. The tunnel excavation wall surface display device according to claim 1, wherein the display control unit is capable of switching to display of a cross-sectional view including a position instructed to be selected on the development view. The screen is divided into a development view display area and a data display area, and the development view display area is divided into left and right, and the direction in which the horizontal axis is directed from the outside to the center is the digging direction Display the left wall development and right wall development of the display mode corresponding to each position of the wall where the vertical axis is the wall distance from the top edge of the upper side to the bottom board of the lower side In addition, a tunnel excavation wall surface display method for displaying the data of the position instructed to be selected on the development view is displayed in the data display area. 4. The tunnel excavation wall surface display method according to claim 3, wherein the display is switched to a cross-sectional view including a position instructed to be selected on the development view by a cross-sectional view display change instruction. A hit / excavation calculation function for obtaining the difference between the design value data of the tunnel cross section and the measured value data as hit / excavation,
The screen is divided into a development view display area and a data display area, and the development view display area is divided into left and right, and the direction in which the horizontal axis is directed from the outside to the center is the digging direction Display the left wall development and right side wall development of the display mode according to the hit / excavation where each position of the wall has the vertical axis as the wall distance from the top edge of the upper side to the bottom board of the lower side. And a tunnel excavation wall surface display program for causing a computer to realize a display function for displaying data at a position instructed to be selected on the development view in the data display area. In the tunnel excavation wall surface expansion display program according to claim 5, the display function has a function of switching and displaying a cross-sectional view including a position instructed to be selected on the development view by a cross-sectional view display switching instruction. A tunnel excavation wall surface display program for realizing on a computer characterized by

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