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US 9,399,852 B2Granted
Pile installation without extraction
OwnerThad Northropinventor
Life of this patent
Estimating the term…
Abstract
A method of installing a support pile when refusal is encountered comprising the steps of: side drilling a ground surface proximate to a support pile to a predetermined embedment depth; thereby creating a void; driving the support pile to a predetermined embedment depth; and backfilling the void using a suitable filler material.
Claims18
A method installing a pile comprising the steps of:
- establishing a desired depth for a leading end of the pile;
- driving a pile through a first substrate to a first position where the leading end of the pile contacts a second substrate at least partially comprising a refusal material;
- drilling a bore with a drill string at an angle relative to the pile such that the leading end of the drill string creates a bore in the second substrate at a point below the leading end of the pile;
- withdrawing the drill string;
- and
- driving the pile into the bore created by the drill string.
3 more elements
A method installing a pile comprising the steps of:
- establishing a desired depth for a leading end of the pile;
- driving a pile through a first substrate to a first position where the leading end of the pile contacts a second substrate at least partially comprising a refusal material;
- drilling a first bore with a drill string at an angle relative to the pile on a first side thereof such that the leading end of the drill string creates a first bore in the second substrate at a point below the leading end of the pile;
- withdrawing the drill string;
- and
- driving the pile through the second substrate to a second position where the leading end of the pile contacts a third substrate at least partially comprising a refusal material;
- drilling a second bore with a drill string at an angle relative to the pile on a second side thereof such that the leading end of the drill string creates a second bore in the second substrate at a point below the leading end of the pile;
- withdrawing the drill string from the second bore;
- and
- driving the pile at least partially through the third substrate.
7 more elements
Dependencies are inferred from the claim text.