Method for manufacturing a tubular foundation in the ground
AssigneeWillibald Kellner
InventorWillibald Kellner
Life of this patent
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Abstract
A tool for making holes in the ground comprises a ram tip and coupling for connecting to a drive device, such as a hydraulically or pneumatically actuated pile driving machine, or a vibrating pile driving machine. A method for making tubular foundations in the ground comprises coupling a ram tip to a drive device, selecting a location for making a hole, placing the ram tip thereat, setting the drive device into operation to drive the ram tip into the ground to form a hole, removing the ram tip out of the hole, partially filling the hole with concrete, re-inserting the ram tip into the hole before the concrete sets, setting the drive device into operation and then removing the ram tip, thereby obtaining a tubular foundation.
Claims6
Method for manufacturing a tubular foundation in the ground comprising the steps of:
- (1) providing a tool for making holes in the ground, said tool comprising a ram tip having a free end and coupling means for connecting the ram tip to a drive device;
- (2) providing a drive device for successively exciting the ram tip downwardly in the direction of the free end with at least one of vibration and percussion;
- (3) coupling the drive device immediately behind the ram tip;
- (4) selecting a location for making a hole in the ground;
- (5) placing the tool thereat;
- (6) setting the drive device into operation such that the tool is excited with at least one of vibration and percussion at a chosen frequency downwardly in the direction of the free end of the ram tip;
- (7) penetrating the ground with the ram tip to form a hole;
- (8) making the hole having a depth which is smaller than a depth of a tubular foundation to be manufactured;
- (9) pulling the ram tip out of the hole;
- (10) at least partially filling the hole with pourable concrete;
- (11) re-inserting the ram tip in the hole before the concrete has cured;
- (12) setting the drive device into operation such that the hole is extended to the desired depth, and the concrete present therein forms a concrete tube round the ram tip and is compacted;
- and
- (13) pulling the ram tip out of the tubular foundation.
Dependencies are inferred from the claim text.