JP2699226B2 - Tunnel face marking method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for automatically marking a drilling pattern on a tunnel face during tunnel excavation work.

[0002]

2. Description of the Related Art Excavation work at the time of blasting when performing tunnel excavation work has a problem that the number of construction steps increases and the cost increases. For this reason, conventionally, in order to eliminate the excavation, the drilling position is conventionally designated on the tunnel face using a laser beam, and the worker marks the place designated by the laser beam with paint etc., and based on this marking, Tunnel excavation has been proposed.

[0003]

However, according to the above-mentioned conventional marking method, since the worker directly marks the tunnel face, the marking work is actually time-consuming and dangerous. For reasons such as
It has not been implemented yet. In view of the above, an object of the present invention is to provide a tunnel face marking method and a device capable of performing marking in a short time in a safe and practical manner.

[0004]

A marking method according to the present invention emits laser light or light from a transmitter / receiver of a fixed station toward a mobile station in a tunnel, and the position of the mobile station is determined by a computer based on the reflected light. And transmits the detected position data from the fixed station to the mobile station.The mobile station calculates the drilling position of the tunnel face by the computer based on the position data, and moves toward the calculated drilling position. A marking material is fired by a firing means provided in the station, and the drilling position is marked.
The marking device according to the present invention includes a fixed station and a mobile station provided in a tunnel.The fixed station emits laser light or light toward the mobile station, receives reflected light, and receives position data. A transmitting / receiving receiver, and a computer for detecting the position of the mobile station based on the emitted light, the mobile station receives a position data transmitted from the fixed station, based on the position data, And a firing means for firing the marking material toward the drilling position calculated by the control of the computer.

[0005]

Therefore, since the marking material is fired at the calculated drilling position by the firing means to perform the marking, the marking can be automated, and the marking can be performed safely and in a short time.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. The tunnel face marking device 1 of the present embodiment includes:
As shown in FIG. 1, it is composed of a fixed station 3 installed at a predetermined place in the tunnel 2 and a mobile station 4 moving in the tunnel 2 with excavation work. The fixed station 3 is provided with a transmitter / receiver 5 for transmitting laser light and receiving reflected light, and a personal computer 6 for detecting the position of the mobile station 4.
The mobile station 4 includes a receiver 8 for receiving an optical signal transmitted from the fixed station 3, a personal computer 11 for calculating a drilling position 10 on the tunnel face 9 based on data of the received optical signal, and a computer. An air gun (firing means) 13 for firing a round ball 12 obtained by solidifying a fluorescent paint as a marking material into a round shape is provided toward the drilled position. The ball 11 is automatically and continuously fired from the air gun 13 by the personal computer 11 and is marked 16. In FIG. 1, reference numeral 14 denotes an air gun 13 and
2, a ball storage box for supplying a plurality of balls 12 and storing a plurality of balls 12. Numeral 15 denotes a tripod supporting the receiver 8, the air gun 13, and the ball storage box 14.

Next, a case of marking a hole position by the marking device 1 having the above-described configuration will be described with reference to FIG. First, at the fixed station 3 whose absolute position is known, a laser beam is emitted from the transmitter / receiver 5 toward the mobile station 4, and the reflected light is received by the transmitter / receiver 5.
The position of the mobile station 4 is detected in (step S
1). The detected position data of the mobile station 4 is transmitted to the mobile station 4 by optical communication with the transmitter / receiver 5 (step S).
2). In the mobile station 4, the drilling position 10 is calculated by the personal computer 11 based on the position data transmitted from the fixed station 3 (step S3). Thereafter, under the control of the personal computer 11, the ball 12 is automatically and continuously fired from the air gun 13 toward the drilling position 10 on the tunnel face 9 (step S4). Is marked 16 with fluorescent paint.

Therefore, unlike the conventional manual marking by a worker, the marking can be performed safely, and since the marking is performed automatically, the work can be performed in a short time and the realization can be realized. It should be noted that the firing means is not limited to an air gun, and other means can be used, and the marking material is not limited to fluorescent paint.

[0009]

As described above, according to the present invention, since the marking material is fired at the drilling position on the face of the tunnel, marking can be performed automatically, and the safety of workers can be ensured. Thus, marking can be performed in a short time.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a marking device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a marking procedure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 marking device 2 tunnel 3 fixed station 4 mobile station 5 transmitter / receiver 6,11 computer 8 receiver 9 tunnel face 10 drilling position 12 marking material 13 launching means

Claims (4)

(57) [Claims] 1. A laser beam or light is emitted from a transmitter / receiver of a fixed station to a mobile station in a tunnel, and the position of the mobile station is detected by a computer based on the reflected light, and the detected position data is transmitted from the fixed station. Transmitted to the mobile station, the mobile station calculates the drilling position of the tunnel face by the computer based on the position data, and fires the marking material by the firing means provided in the mobile station toward the calculated drilling position. And marking the drilling position. 2. A transmitter / receiver comprising: a fixed station and a mobile station provided in a tunnel; and a transmitter / receiver which emits laser light or light toward the mobile station, receives reflected light, and transmits position data to the fixed station. A computer for detecting the position of the mobile station based on the emitted light, a receiver for receiving the position data transmitted from the fixed station, and a cutting machine at the tunnel face based on the position data. A tunnel face marking device, comprising: a computer for calculating a hole position; and a firing means for firing a marking material toward a hole position calculated by control of the computer. 3. The tunnel face marking apparatus according to claim 2, wherein the marking material is a ball made of fluorescent paint solidified in a round shape. 4. The tunnel face marking apparatus according to claim 2, wherein said firing means is an air gun.