JPH06146334A - Excavation method - Google Patents

Abstract

PURPOSE:To provide an excavation method wherein excavation is executable in a plurality of spots at the same site and an accurate position can be excavated to discharge excavated soil. CONSTITUTION:In an excavation method wherein discharge or excavation of a ground is carried out, a laser scanning device 20 is installed in the direction of an excavation scheduled range. A laser beam is emitted from the laser scanning device in such a way as to scan a specified range to form an excavation scheduled reference surface. A laser receiver 12 and a communication device 13 are installed to a discharge plate or a shovel or an arm to support the discharge plate or the shovel. By using an earth-moving machine having a communication device 14 installed in the vicinity of the operator's seat, discharge or excavation is effected until a laser reference surface 21 and the laser receiver 12 are adjusted to the same level as the presence of receipt of the laser receiver 12 is confirmed through the communication device 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drilling method using a laser scanning device.

[0002]

2. Description of the Related Art An excavation method using a conventional laser rotation level device is known. As shown in FIG. 5, the laser rotation level device A is a device in which a laser emitting section rotates in a fixed direction to emit a laser beam in all directions of 360 degrees. A laser beam B emitted from the laser rotation level device A is received by a laser receiver D installed in the main body of the earthworking machine C. Then, soil removal and excavation are performed while confirming whether or not the laser beam B is received, and the excavation surface is formed along the emitted laser beam.

[0003]

Problems to be Solved by the Invention The conventional excavation method described above has the following problems. <a> Since the laser rotation level device emits a laser beam in all directions of 360 degrees, when excavating using multiple laser rotation level devices at the same site, the laser receiver installed on the earthworking machine will not The laser beam emitted from the excavation site may be received and malfunction may occur.

<B> Since the laser receiver is installed in the main body of the earthworking machine, it is impossible to excavate the ground surface excavated and excavated at an accurate depth.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems. The object of the present invention is to perform excavation at a plurality of locations at the same site, and excavation and earth removal at accurate positions. To provide a method.

[0006]

The present invention is a method of excavating or excavating the ground, in which a laser scanning device is installed toward a planned excavation range and a laser beam is emitted from the laser scanning device within a certain range. To form a reference plane for excavation by scanning so that a laser receiver and a communication device are installed on the soil discharge plate or shovel or an arm supporting them, and an earthworking machine with a communication device installed near the cockpit is installed. Using the excavating method, which comprises excavating or excavating earth until the laser reference surface and the laser receiver are at the same height while confirming whether or not the laser receiver receives light through the communication device. is there.

[0007]

Embodiment 1 An excavation method will be described below with reference to the drawings. This embodiment is a case where the excavator 10 equipped with the shovel 16 is applied to excavation work in which the excavation groove 40 is provided at a constant depth on the ground. <A> Installation of Laser Scanning Device (FIG. 1) The laser scanning device 20 is arranged with the light emission direction facing the planned excavation site. Targets 30a with reflecting plates facing the laser scanning device 20 on both sides of the planned excavation site,
30b is arranged. The laser scanning device 20 and the targets 30a and 30b are accurately measured and arranged so as to be located on the same plane parallel to the excavation groove 40 to be excavated. The laser scanning device 20 rotates the X-axis and the Y-axis of a set of two galvanometer scanners to change the angle of the reflection plate, and emits the laser beam toward the reflection plate to change the emission direction of the laser beam. It is a device that controls. The targets 30a and 30b are configured by supporting a reflection plate that reflects a laser beam with legs.

<B> Setting of Laser Reference Plane (FIG. 1) The setting of the laser reference plane 21 will be described. A laser beam is emitted from the laser scanning device 20 toward the targets 30a and 30b. That is, the laser beam emitted from the laser scanning device 20 is applied to the target 30.
a and 30b to match targets 30a and 30
The directions of b are stored in the laser scanning device 20, and the laser beam is reciprocated between the targets 30a and 30b to set the laser reference plane 21.

<C> Installation of Laser Receiver (FIG. 2) The laser receiver 12 is installed on the arm 11 of the excavator 10. The installation position of the laser receiver 12 is calculated so that when the shovel 16 of the excavator 10 excavates the bottom surface of the excavation groove 40, the laser receiver 21 is located slightly above the laser reference plane 21 intersecting the arm 11. And decide. The laser receiver 12 emits a beep sound when receiving a laser beam,
Display the light-receiving mark on the display. A communication device 13 is connected to the laser receiver 12. Further, a communication device 14 is installed in the main body of the excavator 10. The communication device 13 and the communication device 14 are configured to be capable of wireless or wired communication.

<D> Excavation (FIGS. 1, 2, and 3) The excavator 10 is operated to excavate. That is, the ground is dug down by the shovel 16, the laser light receiver 12 crosses the laser reference plane 21, and when the laser light receiver 12 receives the laser beam, it is excavated laterally from the excavation position in parallel with the laser reference plane 21. To go. Regarding the reception of the laser beam, the light reception signal of the laser light receiver 12 is input to the communication device 13, and the light reception signal is input to the communication device 14 from the communication device 13 wirelessly or by wire, and the communication device 14 emits sound or light. Thus, the operator can recognize the reception of the laser beam. As shown in FIG. 3, the laser scanning device 20 is
It also has a function of emitting a laser beam only at the central position of the laser reference plane 21. By using this function, the formation position of the excavation groove 40 can be accurately grasped.

[0011]

[Embodiment 2] In this embodiment, the excavation site is an excavation surface 41 having a certain angle. Target 30
c is arranged above the excavation surface 41, and the laser scanning device 20 is arranged below the excavation surface 41. Then, from the laser scanning device 20 toward the target 30c, the laser reference plane 2 is separated from the excavation surface 41 to be excavated at a predetermined interval.
Emits 1. The emission range of the laser reference plane 21 is input and set in advance in the laser scanning device 20. The excavator 10 excavates in parallel with the laser reference plane 21. As described above, the present invention can be applied to a slope where the excavation surface 41 has a certain angle.

[0012]

Since the present invention is as described above, the following effects can be obtained. <A> The emission range of the laser beam emitted by the laser scanning device can be set within the excavation site. Therefore, the laser beam is not emitted to another excavation site in the same site. Therefore, excavation can be performed in the same site using a plurality of laser scanning devices.

<B> Excavation is carried out by attaching a laser receiver to the earth discharging plate or arm of the earthworking machine. Therefore,
The excavation site can be excavated at an accurate depth.

<C> A communication device is installed on the side of the laser receiver of the excavator and on the side of the cockpit. Therefore, when the laser light receiver receives the light, the operator can be notified via the communication device. Therefore, even if there is noise or vibration during excavation, the operator can accurately recognize the light reception of the laser.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an excavation method.

[Fig. 2] Explanatory diagram during excavation

[Fig. 3] Explanatory diagram during excavation

[Fig. 4] Illustration of slope excavation

FIG. 5 is an explanatory diagram of a conventional excavation method.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuichi Nishizawa 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation

Claims (1)

[Claims] 1. A method for excavating or excavating the ground, wherein a laser scanning device is installed toward a planned excavation range, and the laser scanning device emits a laser beam so as to scan a certain range for excavation. Using the earthworking machine that forms the planned reference surface, installs the laser receiver and the communication device on the soil discharge plate or the shovel or the arm that supports them, and installs the communication device near the cockpit, through the communication device, A method of excavating, characterized in that while observing whether or not the laser receiver receives light, the earth is excavated or excavated until the laser reference plane and the laser receiver are at the same height.