Cleaning device for cleaning a bottom of a borehole and method for creating a foundation element
AssigneeBAUER Spezialtiefbau GmbH
InventorsStefan Spreitzer, Ulli Wiedenmann, Helmut Hross
Life of this patent
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Abstract
The invention relates to a cleaning device for cleaning a bottom of a borehole in the ground and also to a method for creating a bored pile in a borehole. The cleaning device has a pumping means, through which sedimented ground material in the region of the bottom of the borehole can be sucked away via a suction opening and can be discharged from the borehole via a suction line. At least one flushing nozzle is provided, through which a flushing jet can be produced, which exits the cleaning device and flushes sedimented ground material from the bottom of the borehole. A bored pile can then be produced in a thus cleaned borehole.
Claims11
Cleaning device for cleaning a bottom of a borehole in the ground, with a pumping part, through which sedimented ground material in a region of the bottom of the borehole being sucked away via a suction opening and discharged from the borehole via a suction line, wherein at least one flushing nozzle is provided, the at least one flushing nozzle being configured to produce a flushing jet including liquid, which exits the cleaning device and flushes sedimented ground material from the bottom of the borehole, wherein a spacer ring is provided which surrounds a rotor or at least one rolling body, the spacer ring being drum-shaped and upwardly and downwardly open wherein the at least one flushing nozzle is directly exposed to the bottom of the borehole,
- wherein the pumping part is configured to suck the sedimented ground material together with the liquid in the borehole, wherein a branch line is configured to remove a portion of the liquid to the at least one flushing nozzle to form the flushing jet.
Method for creating a foundation element, comprising:
- incorporating a borehole in the ground,
- filling the borehole with a hardenable suspension which hardens to form the foundation element, wherein, before hardening of the foundation element, lowering a cleaning device to a bottom of the borehole, through which sucking away and removing sedimented ground material in a region of the bottom via a suction opening, wherein using the cleaning device with at least one flushing nozzle, with which producing a flushing jet including liquid, through which flushing sedimented ground material from the bottom of the borehole, wherein the cleaning device includes a spacer ring which surrounds a rotor or at least one rolling body, the spacer ring being drum-shaped and upwardly and downwardly open wherein the at least one flushing nozzle is directly exposed to the bottom of the borehole,
- wherein a pumping part sucking the sedimented ground material together with the liquid in the borehole, wherein a branch line removing a portion of the liquid to the at least one flushing nozzle to form the flushing jet.
Dependencies are inferred from the claim text.