Pile installation without extraction
View Patent ↗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.
1. 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.
2. The method of claim 1 , wherein the drill string creates a bore extending to the desired depth for the leading end of the pile.
3. The method of claim 1 , wherein the drill string creates a bore terminating at a point between the leading end of the pile when the pile is in the first position and the desired depth for the leading of the pile.
4. The method of claim 1 , further comprising the step of driving the pile through the first and second substrates until the leading end of the pile reaches the desired depth.
5. The method of claim 1 , wherein the pile is an I-Beam having a pair of flanges and the drill string drills a bore at an angle between the pair of flanges.
6. The method of claim 5 , wherein the bore is drilled using a four (4) inch down-the-hole (DTH) hammer drill bit.
7. The method of claim 1 wherein the angle at which the drill string drills the bore is such that the drill string is within about six (6) inches of the pile at its closest point.
8. The method of claim 1 wherein the bore is drilled using a down-the-hole (DTH) hammer drill.
9. The method of claim 1 further comprising:
backfilling the bore with a cementitious material to a point level with the surface; and
applying water to the cementitious material.
10. 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.
11. The method of claim 10 , wherein the drill string creates a first bore extending to a point selected from the group consisting of the desired depth for the leading end of the pile and a point between the leading end of the pile when the pile is in the first position and the desired depth for the leading of the pile.
12. The method of claim 10 , wherein the drill string creates a second bore extending to a point selected from the group consisting of the desired depth for the leading end of the pile and a point between the leading end of the pile when the pile is in the second position and the desired depth for the leading of the pile.
13. The method of claim 10 , further comprising the step of driving the pile through the first, second and third substrates until the leading end of the pile reaches the desired depth.
14. The method of claim 10 , wherein the pile is an I-Beam having a pair of flanges and the drill string drills a bore at an angle between the pair of flanges.
15. The method of claim 14 , wherein the bore is drilled using a four (4) inch down-the-hole (DTH) hammer drill bit.
16. The method of claim 10 wherein the angle at which the drill string drills the bore is such that the drill string is within about six (6) inches of the pile at its closest point.
17. The method of claim 10 wherein the bore is drilled using a down-the-hole (DTH) hammer drill.
18. The method of claim 10 further comprising:
backfilling the first and second bores with a cementitious material to a point level with the surface; and
applying water to the cementitious material in the first and second bores.