Piles suitable for subsidence conditions
Abstract
Abstract A TELESCOPIC PILE SUITABLE FOR SUPPORTING A FOUNDATION ON SOILS UNDERGOING CONSOLIDATION PROCESSES AND IN GENERAL FOR SUBSIDENCE CONDITIONS, COMPRISING A SOLID ELONGATED LOWER MEMBER, VERTICALLY ARRANGED AND BEARING ON A FIRM STRATUM, AND A HOLLOW ELONGATED MEMBER TELESCOPICALLY MOUNTED OVER THE TOP OF SAID SOLID MEMBER AND CONTAINING A FILL OF GRAVEL OR OTHER GRANULAR MATERIAL BEARING ON TOP OF SAID SOLID MEMBER AND EXERTING A POSITIVE INNER FRICTION ON THE INNER WALLS OF SAID HOLLOW MEMBER, THE TOP OF SAID HOLLOW MEMBER BEING ARRANGED TO SUPPORT A FOUNDATION BUILT ON THE SURFACE OF THE SOIL. THE BEARING CAPACITY OF THE ABOVE DESCRIBED PILE IS DERIVED FROM POSITIVE SKIN FRICTION AS WELL AS FROM POINT RESISTANCE. THE FORMER IS DEVELOPED THROUGH FRICTION BETWEEN THE UPPER HOLLOW SECTION OF THE PILE AND THE SURROUNDING SOIL AND THE LATTER IS DUE TO THE REACTION OF THE FIRM STRATUM ON THE LOWER TIP OF THE SOLID MEMBER OF THE PILE. THE LOAD IS TRANSMITTED TO THE TIP THROUGH FRICTION BETWEEN THE UPPER HOLLOW SECTION AND THE GRAVEL OR SAID FILL.
Inventors
- 👤 Juan J Correa
Bibliographic Details
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |