Pile reamer with spoil container
AssigneeCementation Foundations Skanska Limited
InventorsMelvin Gerrard England, Ronald Peter Payne
Life of this patent
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Abstract
The present application relates to a tool having a cutting apparatus for enlarging a portion of an underground pile shaft. The tool is provided with a collecting device which is disposed below the cutting means in order that spoil generated when performing a cutting action on ground material surrounding the pile shaft can be collected. The size of the collecting device is adjustable thereby allowing the volume of spoil which may be accommodated by the collecting means to be varied. A compacting mechanism for compressing the spoil collected in the collecting device may also be provided for reducing the volume of the spoil.
Claims18
A tool for enlarging a portion of an underground shaft, which tool comprises:
- (a) a generally cylindrical body portion the axis of which defines an axis of rotation;
- (b) a cutting means for performing a cutting action on surrounding ground material when the tool is rotated about said axis of rotation;
- and
- (c) a collecting means attached to, or forming part of the cylindrical body portion, said collecting means being disposed below said cutting means such that, in use, spoil generated by said cutting means is collected therein, characterized in that the size of the collecting means is adjustable thereby allowing the volume of spoil which may be accommodated by the collecting means to be varied.
Dependencies are inferred from the claim text.