| 摘要 |
<p>PURPOSE:To economize manhour by executing the rough finishing and substantial finishing in which the cut-out line is calculated on the basis of the light receiving position of a laser beam receiving device and the given set data, shifting a power shovel in the lader beam direction. CONSTITUTION:The laser beam transmitted from a laser oscillator is received by a laser beam receiving device 1 installed on the car body of a power shovel. Then, a controller sets up the cut-out line (l3) in an angle beta at the position Q separating by a distance (d) from the standard position P as the center line of a shovel 3, and a small stage in the cut-out line (l2) is formed horizontally at the top edge of a prescribed slope length, and the cut-out line (l1) is set up in an angle (alpha) and set. Then, the shovel 3 is shifted towards the laser beam, and the cut-out lines l1-l3 are calculated on the basis of the set data, and a slope face 6 is cut out by the operation of a boom 3, arm 4 and a bucket 5.</p> |
