JP3449708B1 - Display method of tunnel cross section measurement result and program therefor - Google Patents

Abstract

Abstract: [PROBLEMS] To reduce the construction cost and improve the construction efficiency by being able to grasp the position and amount of over-digging and attrition two-dimensionally, and quickly grasping the tendency of attrition and over-digging and reflecting on the construction. Improve, etc. In an embodiment, a result of measurement of an inner space cross section before lining measured by an optical distance meter is displayed in a developed view, and in the developed view, the amount of unevenness based on the design cross section is displayed by a contour line. By color-coding each contour line range, the amount of atari and the amount of extra excavation and the distinction between atari and extra excavation in the inner space section are displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of displaying an inner sky section measurement result before lining mainly in excavation in a mountain tunnel. Display method and its program.

[0002]

2. Description of the Related Art In a mountain tunnel represented by the NATM method, an excavation or atari occurs in the inner cross-section every time the digging proceeds due to blasting. Has to be removed before lining to secure the design winding thickness, so it is necessary to quickly grasp the type and amount of atari and overburden and reflect them in the construction.

As a conventional method for measuring the inner sky cross section, as shown in FIG. 4, conventionally, after measuring the shape of the inner sky cross section 33 by an optical distance measuring instrument 32 installed on the top of the tunnel 31 or on the bottom plate. , Input this measurement result to the computer,
As shown in FIG. 5, on the monitor 34, the design cross section 35 is displayed for each measurement cross section, and the dug 33a and the atari 33b are displayed in a polygonal line diagram based on the design cross section 35. In this case, if there is a polygonal line inside the design cross section 35, it is atari, and if there is a polygonal line outside, it is an overditch. In addition, the amount is the design cross section 3
It is expressed by the distance from 5.

[0004]

However, in the method according to the above-mentioned conventional example, although it is possible to easily determine atari and overexcavation for each cross section from the monitor screen, it is possible to determine at what place and to what extent the excavation surface as a whole It was difficult to understand in a plane how the excess digging occurred. As a result, it is not possible to accurately grasp the tendency of atari and overburden and it is not possible to correct the excavation method promptly according to the ground condition, so atari increases and removal work increases, or there is much overburden There were problems such as an increase in the amount of concrete.

Therefore, the main problem of the present invention is that the position and amount of overburden or atari can be two-dimensionally grasped at a glance, and the tendency of atari or overburden can be quickly grasped and reflected in the construction. An object of the present invention is to provide a method of displaying a measurement result of an aerial cross section in a tunnel and a program thereof, which can reduce costs and improve construction efficiency.

[0006]

As an invention according to claim 1 for solving the above-mentioned problems, as a development view, a result of measurement of an inner cross-section before lining measured by an optical distance measuring instrument is displayed by a development view and the development is performed. In the figure, the amount of atari and overburden at each measurement point for each cross section is displayed in the size of the figure, sign or mark, and the distinction of atari or overburden is displayed in the color attached to the figure, sign or mark. There is provided a method of displaying a measurement result of a cross section in a tunnel.

In the invention according to the above-mentioned claim 1, the color and size of the figure, symbol or mark plotted on the development view of the excavation surface makes it possible to grasp the overexcavation and the atari at a glance in a plan view. As a result, it is possible to easily and accurately grasp at what position and in what tendency the overexcavation and the atari occur, so that it becomes possible to promptly correct the excavation method according to the ground condition by giving an accurate instruction.

As an invention according to claim 2, the result of measurement of the inner cross-section before lining measured by an optical distance measuring device is displayed in a developed view, and in the developed view, the amount of unevenness based on the design section is shown. In addition to displaying with contour lines,
Provided is a method for displaying a measurement result of an inner section of a tunnel, which is characterized by displaying the amount of atari and the amount of overburden in the inner cross section and the distinction between atari and overburden by color-coding each contour line range. .

In the invention according to the above-mentioned claim 2, since the unevenness amount based on the excavation design cross section is displayed by contour lines in the developed view, and each contour line range is color-coded, the presence and amount of excess excavation or atari Can be visually expressed, and it becomes possible to easily and accurately grasp at which position and in what kind of tendency the overexcavation and atari occur.

In the invention according to claim 3, the vertical axis of the developed view is a distance in the tunnel circumferential direction developed with reference to the tunnel center line, and the horizontal axis is a distance in the excavation direction. There is provided a method for displaying the measurement result of the aerial cross section in the tunnel described in 1.

According to a fourth aspect of the present invention, in place of the optical distance measuring device, a three-dimensional scanner is used to perform the measurement of the inner cross section, and A display method is provided.

According to a fifth aspect of the present invention, in place of the lightwave rangefinder, the inner aerial cross section is measured by precision photogrammetry using a digital camera. A method of displaying the measurement result is provided.

According to a sixth aspect of the present invention, a computer displays the measurement results of the inner cross-section before lining in a developed view, and in the developed view, each amount of atari and overburden at each measurement point in each section is displayed. Is displayed in the size of the figure, symbol or mark, and at the same time, the program for displaying the result of measurement of the aerial cross section in the tunnel for executing the distinction of atari or overexcavation in the color attached to the figure, symbol or mark is executed. Provided.

According to a seventh aspect of the present invention, in the computer, the result of measurement of the inner cross-section before lining is displayed in a developed view, and in the developed view, the amount of unevenness based on the design section is displayed in contour lines. With
By color-coding each contour line range, there is provided a program for displaying the results of tunnel cross-section measurement in order to display the amount of atari and overburden in the above-mentioned inner cross-section and the distinction between atari and overburden. It

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, in the present tunnel cross-section measuring system, a management computer 1 is installed in a site office H, and a wireless communication base station 2 is fixedly arranged in a tunnel pit. The management computer 1 and the wireless communication base station 2 are connected by a communication cable 3 so that information can be transmitted.

On the other hand, an underground worker or the like who is excavating near the face always carries the portable information communication terminal 4 and can wirelessly communicate with the wireless communication base station 2 bidirectionally.
Information transmitted from the information communication terminal 4 is transmitted to the management computer 1 via the wireless communication base station 2, and an optical distance measuring device 5 is fixedly arranged behind the face. It is connected to the wireless communication base station 2 via the controller 6. In this example, the communication between the management computer 1 and the wireless communication base station 2 is wired communication, and the communication between the wireless communication base station 2 and the portable information communication terminal 4 is wireless communication. The communication may be wireless or wired.

In the vicinity of the face S, wheel jumbo 7, sprayer 8, wheel loader, and other heavy equipment for tunnel construction are arranged. For example, in the example shown in the figure, excavation is carried out by a simultaneous parallel operation of the upper half and the lower half. By the mini bench construction method,
After performing rock bolt drilling and charging hole / charging in parallel in each of the upper and lower halves, cut the upper and lower halves at a stretch, then slide out → hitting → primary spraying → support construction → Secondary spraying → Drilling work is performed every cycle by the procedure of rock bolt placement.

For the measurement of the inner cross-section after digging by blasting or before lining on the spray finish surface, the mobile information communication terminal 4 carried by an underground worker or the like issues a command to start measurement. Then, under the control of the controller 6, the optical distance measuring instrument 5 automatically measures the shape of the inner cross-section before lining, and the measurement data is automatically fetched into the management computer 1 by the communication system. ing.

The measurement results taken into the management computer 1 are displayed on the computer screen 1A in a monitor format in the display format shown in FIG.

On the computer screen 1A, a developed view 9 of the inner cross-section of the excavation is displayed on the left side, a cross-sectional view 10 of the inner cross-section of the measurement target is displayed on the right side, and the inner section of each excavation is displayed on the lower side. Table 11 of measurement results of sky section
Is displayed.

In the developed view 9, the vertical axis indicates the circumferential distance developed with the center line CL of the inner air section as a reference, and the horizontal axis indicates the excavation distance TD (Total Distance) and the distance STA according to the station number. The number of excavation cycles and the support work pattern symbol (CIIa) are displayed on the upper side, respectively. Here, the TD on the horizontal axis is the T selected and designated by the TD selection list boxes 11a and 11b displayed near the upper end of the computer screen 1A.
The one in the D section is displayed.

In the developed view 9, each measured cross section 17 is shown.
The amount of overburden and Atari at each measurement point is displayed according to the size of the circle for each range divided according to the legend, and the distinction between overburden and Atari is displayed by the coloring inside the circle. It is like this. Specifically, in the figure, overexcavation is indicated by ○ (white circle) and Atari is indicated by ● (red circle). In addition, although the display positions of the overburden and the atari are not displayed in a line along the cross-sectional position 17, this is because the optical distance measuring device 5 is installed at the rear of the face, This is because the measurement is performed by collimation, and therefore the measurement position is slightly shifted due to unevenness due to overburden or pitting. It should be noted that the display of the amount of overburden or atari can be any figure, symbol or mark other than the circle, and the coloring for distinguishing overburden or atari should be any chromatic color other than red. You can

On the other hand, in the cross-sectional view 10, the inner cross-sectional shape at the TD position designated by the mouse is displayed. The inner-air cross-sectional shape is such that overburdens and pits are displayed by polygonal lines 12 based on the design cross-section 13. Further, a first information display frame 14 is displayed on the upper left side of the sectional view 10 and a second information display frame 15 is displayed on the upper right side.
Is displayed. The first information display frame 1
Within the frame of 4, the distance TD and the distance STA are arranged in order from the top.
Measured position (in parentheses), support pattern, maximum amount of overburden, average overburden amount, maximum overburden amount, average overburden amount, average overburden amount, concrete amount per 1 m cross section It is supposed to be done. In addition, in the frame of the second information display frame 15, a TD section designation column, T
The amount of concrete per 1 m of D and the total amount of concrete in the designated TD section are displayed respectively.

An atari display magnification section is displayed at the upper right end of the cross-sectional view 10 so that only the atari of the polygonal line 12 is exaggeratedly expressed by a designated arbitrary magnification.

On the other hand, in the list 11, the measurement date and time, the number, the design TD (actual TD), the measured TD (measured TD), the relative X coordinate, and the relative in order from the left with respect to the measurement results of the respective internal cross sections The Y coordinate, the relative Z coordinate, the vertical angle, the design distance from the center, the measured distance from the center, the actually measured amount of misalignment, the amount of corrected misalignment, the misalignment, and the face TD are displayed.

When the contour map button 16 at the top of the computer screen 1A is clicked with the mouse,
The screen is changed so that the Atari / excavation contour figure 18 of the designated TD section is displayed.

Atari / excess contour As shown in FIG. 3, in FIG. 18, the vertical axis represents the circumferential distance developed with reference to the centerline CL of the inner air section, and the horizontal axis represents the excavation distance TD.
(Excavation cycle number in parentheses) is displayed as a development view, the amount of unevenness based on the design cross section is displayed by contour lines, and the range of each contour line is color-coded by various colors.

Specifically, as shown in the legend, the unevenness based on the design cross section is divided into 20 steps of A to T every 50 mm and is displayed by contour lines, and each contour line of A to T is displayed. The range should be color-coded for each category.
Among the sections A to T, the negative sections A to E are attentive and the positive sections F to T are excess. Also, because it is not possible to display it in color on the drawing, it has been limited to displaying it in alphabetical characters for the sake of convenience. By changing it, it is possible to see at a glance the red and orange parts, that is, at what position and in what range the Atari is distributed, and at the same time, the blue part, that is, the excess overexposed part. It is possible to see at a glance where and in what range are distributed along with the amount.

A print button 19 is displayed at the lower right corner of the computer screen 1B. When the print button 19 is selected with the mouse, the atari / excavation contour diagram 18 can be printed.

By the way, in place of the optical distance measuring device 5, 3
It is also possible to measure the inner cross-section using a dimensional scanner. The light-wave distance measuring device is a measuring device that has existed in the past, but in recent years, a three-dimensional scanner is at a practical level due to the development of sensor technology, and instead of the light-wave distance measuring device 5, a three-dimensional scanner is used in a planar manner. In addition, it is possible to measure unevenness of the inner sky section. As the three-dimensional scanner, for example, TDS series manufactured by Pulstec can be preferably used. Surveying error is scan area 567 × 498mm
In the case of (TDS-1500), an accuracy of 0.23 to 0.83 mm (Z direction) can be obtained.

Further, in place of the optical distance measuring device 5, it is possible to carry out the measurement of the inner air section by the precision photogrammetry which has been put into practical use with the development of computer processing technology in recent years. In the precise photogrammetry, it is possible to measure the object 3 from the difference in parallax between a plurality of digital photo images taken at different shooting positions.
The dimensional coordinates are calculated by image processing using a personal computer, and the measurement error is generally as high as a few mm at a shooting distance of 100 m.

[0033]

As described above in detail, according to the present invention, it becomes possible to two-dimensionally grasp the position and amount of overburden or atari. Therefore, it is possible to reduce the construction cost and improve the construction efficiency by quickly grasping the tendency of atari and overdrill and reflecting them in the construction.

[Brief description of drawings]

FIG. 1 is a schematic diagram of measurement of an aerial cross section in a tunnel.

FIG. 2 is a monitor screen view showing a developed view 9 and a sectional view.

FIG. 3 is a monitor screen view showing Atari / excavation contour FIG.

FIG. 4 is a diagram for measuring an aerial cross section in a tunnel.

FIG. 5 is a diagram showing a method of managing an overexcavation of an inner air section according to a conventional example.

[Explanation of symbols]

1 ... Management computer, 1A / 1B ... Computer screen, 2 ... Wireless communication base station, 3 ... Communication cable, 4 ... Portable information communication terminal, 5 ... Lightwave rangefinder, 6 ... Controller, 7
… Wheel jumbo, 8… Spraying machine, 9… Exploded view, 10
... sectional view, 11 ... list, 11a, 11b ... TD selection list box, 14 ... first information display frame, 15 ... second information display frame, 18 ... Atari / excavation contour diagram

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Claims (7)

(57) [Claims] 1. A development view showing a result of measurement of an inner cross-section before lining measured by an optical distance measuring instrument, and in the development view, each atari amount and overburden amount at a measurement point for each cross section are graphically displayed. A method for displaying the results of measurements of aerial cross-sections in tunnels, characterized in that the size of a symbol or mark is displayed, and at the same time, the distinction of atari or overburden is displayed in the color attached to the figure, symbol or mark. 2. The inner sky section measurement result before lining measured by an optical distance measuring instrument is displayed in a developed view, and in the developed view, the amount of unevenness based on the design section is displayed in contour lines, A method for displaying a measurement result of an inner section of a tunnel, characterized by displaying the amount of atari and the amount of excess excavation in the inner sky section and the distinction between the atari and the excess excavation by color-coding each contour line range. 3. The tunnel inner space according to claim 1, wherein the vertical axis of the developed view is a distance in the tunnel circumferential direction developed with reference to the tunnel center line, and the horizontal axis is a distance in the excavation direction. How to display cross-section measurement results. 4. The method for displaying the measurement result of the inner section of a tunnel according to claim 1, wherein the inner section of the tunnel is measured by using a three-dimensional scanner in place of the light distance measuring device. 5. The method for displaying the measurement result of the inner section of a tunnel according to claim 1, wherein the inner section of the inner surface is measured by precision photogrammetry using a digital camera instead of the optical distance measuring instrument. 6. A computer displays the result of measurement of the inner cross-section before lining with a development view, and in the development view, the amount of atari and the amount of overburden at the measurement point for each cross-section are represented by figures, symbols or marks. And a program for displaying the measurement result in the tunnel aerial cross section, which is executed in such a manner that it is displayed in the size of and the atari or overburden is distinguished by the color attached to the figure, symbol or mark. 7. A computer displays the result of measurement of the inner cross-section before lining in a developed view, and in the developed view, the amount of unevenness based on the design cross section is displayed in contour lines, and the range of each contour line is displayed. A program for displaying a measurement result in a tunnel inner cross-section, which is executed so as to display the amount of atari and the amount of excess excavation and the distinction between atari and excessive excavation by color-coding each.