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    • 42. 发明授权
    • Excavation apparatus and method
    • 挖掘装置和方法
    • US07192093B2
    • 2007-03-20
    • US11112754
    • 2005-04-22
    • Eric JacksonJim Friant
    • Eric JacksonJim Friant
    • E21C25/56E21C31/00
    • E02F5/08E02F3/20
    • In one embodiment, an excavation method is provided that includes the steps of: (a) contacting a rotating powered cutting head 440 of an excavator 400 with an excavation face 452, wherein, at any one time, a first set of the cutting elements is in contact with the excavation face and a second set of the cutting elements is not in contact with the excavation face, the cutting head excavating the excavation face in at least a first direction; and (b) during the contacting step, using an elongated support member 404 extending from the excavator 400 to a powered device 118 to apply a force to the excavator 400 in at least the first direction to provide at least a portion of the cutting force. The powered device 118 is located at a distance from the excavator 400.
    • 在一个实施例中,提供了一种挖掘方法,其包括以下步骤:(a)将挖掘机400的旋转动力切割头440与挖掘面452接触,其中,在任何时间,第一组切割元件为 与挖掘面接触并且第二组切割元件不与挖掘面接触,切割头在至少第一方向上挖掘挖掘面; 和(b)在接触步骤期间,使用从挖掘机400延伸到动力装置118的细长支撑构件404,以在至少第一方向上向挖掘机400施加力以提供切削力的至少一部分。 动力装置118位于与挖掘机400一定距离处。