Excavation apparatus and method
First Claim
Patent Images
1. An excavation method, comprising:
- providing an excavator, the excavator having a powered, rotating cutting head, the cutting head having a plurality of cutting elements;
contacting the cutting head with a hard rock excavation face, 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 and wherein, in the contacting step, the cutting head excavates the excavation face in at least a first direction; and
during the contacting step, using an elongated support member extending from the excavator to a powered device to apply a force to the excavator in at least the first direction to provide at least a portion of the cutting force, wherein the powered device is located at a distance from the excavator.
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Abstract
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.
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Citations
22 Claims
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1. An excavation method, comprising:
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providing an excavator, the excavator having a powered, rotating cutting head, the cutting head having a plurality of cutting elements;
contacting the cutting head with a hard rock excavation face, 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 and wherein, in the contacting step, the cutting head excavates the excavation face in at least a first direction; and
during the contacting step, using an elongated support member extending from the excavator to a powered device to apply a force to the excavator in at least the first direction to provide at least a portion of the cutting force, wherein the powered device is located at a distance from the excavator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a deposit of a material to be excavated, the deposit having a dip of at least about 35°
- , the deposit being accessible by a plurality of intersecting excavations including at least first and second spaced part excavations extending at least substantially in a direction of a strike of the deposit and at least a third excavation intersecting the first and second excavations and extending at least substantially in a direction of the dip of the deposit, the first, second, and third excavations defining a block of the deposit, a method, comprising;
positioning an excavator in the third excavation, the excavator having a powered, rotating cutting head, the cutting head having a plurality of cutting elements;
positioning a mobile deployment system in the first excavation, at least one support member extending from the mobile deployment system to the excavator; and
contacting the cutting head with an excavation face of the block, 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. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- , the deposit being accessible by a plurality of intersecting excavations including at least first and second spaced part excavations extending at least substantially in a direction of a strike of the deposit and at least a third excavation intersecting the first and second excavations and extending at least substantially in a direction of the dip of the deposit, the first, second, and third excavations defining a block of the deposit, a method, comprising;
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18. An excavator, comprising:
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a body;
a plurality of actuators;
a plurality of transportation members, at least one actuator being in contact with a transportation member;
a cutting head; and
a cutting head drive assembly, wherein the position of the cutting head relative to the body is fixed relative to a direction of travel of the excavator during excavating. - View Dependent Claims (19)
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20. A deployment frame for an excavator, comprising:
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first and second arms disposed on either side of the frame;
a central body member positioned between and connected to the first and second arms;
a plurality of transportation members operative to permit spatial displacement of the frame, a first set of the plurality of transportation members being in operative engagement with the first arm and a second set of the plurality of transportation members being in operative engagement with the second arm; and
at least a first winch, wherein an area defined by the first and second arms and the central body member is configured to receive the excavator. - View Dependent Claims (21, 22)
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Specification