| 摘要 |
PURPOSE:To provide a shield excavating direction automatic control method through which the excavating course of a shield excavator is continuously confirmed for controlling the shield excavator so as to keep its excavating direction along a planning line, and an obstacle existing between the shield excavator and a total station is prevented from disturbing the detection of a center on the excavating course of the shield excavator. CONSTITUTION:A longitudinal and a lateral line to express a display line for a shield excavation planning line in every direction are drawn on a display, and a target symbol to express the center of a shield (s) is continuously expressed on the display. The hydraulic pressure of a shield jack (sj) to press the shield (s) is selectively regulated on the expressed position of the target symbol to control the excavating direction of the shield (s). |
