Travel device, tunnel boring machine, trailing car, transport vehicle, tunnel boring system, and movement method
AssigneeKomatsu Ltd.
InventorsKazunari Kawai, Shinichi Terada, Keigo Hiratsuka
Life of this patent
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Abstract
This travel device is a travel device used in a tunnel boring machine, and including: wheels; and a variable mechanism configured to change an angle formed by a line orthogonal to a rotation axis of the wheels and a vertical line between a first state in which the travel device travels on a flat road surface and a second state in which the travel device travels on an arcuate road surface in frontal view.
Claims16
A travel device used in a tunnel boring machine, the travel device comprising:
- wheels;
- and
- a variable mechanism configured to change an angle formed by a line orthogonal to a rotation axis of the wheels and a vertical line between a first state in which the travel device travels on a flat road surface and a second state in which the travel device travels on an arcuate road surface in frontal view.
A movement method for moving a tunnel boring machine including a front body to which a cutter head for boring borings is attached, a rear body connected to the front body via an extension-retraction mechanism, a front body self-weight support mechanism provided at the front body, a rear body gripper provided at the rear body, and a travel device, the movement method comprising:
- a rear body fixing step of fixing the rear body to a tunnel by the rear body gripper;
- a front body self-weight supporting step of grounding the front body self-weight support mechanism and supporting self-weight of the front body after the rear body fixing step;
- a forward-moving boring step of moving the front body forward and performing boring by the cutter head after the front body self-weight supporting step;
- a rear-body travel device grounding step of releasing the rear body gripper and grounding a travel device provided at the rear body after the forward-moving boring step;
- and
- a rear body forward-moving step of retracting the extension-retraction mechanism and moving the rear body forward together with the travel device after the rear-body travel device grounding step.
A movement method for moving a tunnel boring machine including a front body to which a cutter head for boring borings is attached, a rear body connected to the front body via an extension-retraction mechanism, and a travel device, wherein
- after boring of a tunnel by the cutter head is completed, the tunnel boring machine is moved rearward by an allowable distance for the travel device at least between the cutter head and a tunnel wall in front of the cutter head, and after the travel device is attached to the cutter head, the tunnel boring machine is retreated.
Dependencies are inferred from the claim text.