AUTOMATIC CONTROL METHOD FOR SHIELD EXCAVATING DIRECTION

AUTOMATIC CONTROL METHOD FOR SHIELD EXCAVATING DIRECTION

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KOSAKA FUMIO, ENOMOTO HIDEO, TAKAHASHI HIROYUKI
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung: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).