Self-sinking, axial passage foundation pile and method
US4027490A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1975 |
| Grant date | Jun 7, 1977 |
| Priority date | — |
| Expiry date | Sep 10, 1995 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/44
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A self-sinking, axial passage foundation pile and method are provided. The pile is preformed with an axial bore which is capable of accommodating a rotatable shaft. At one end of the pile a drill bit is affixed to the shaft and at the other end a driving means is attached to the shaft in order to rotate the drill bit. In this configuration the rotational drilling torques are transmitted by the shaft without importing torque to the pile. Accordingly, the pile need not be specially reinforced to accommodate the bore hole drilling torques. Furthermore, the invention encompasses the novel method for installing the unique pile disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.