Method for controlling a final pile diameter in a cast-in-place of solidification pile by a jet process
US5435668A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2013 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D5/36
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for forming a pile having a predetermined pile diameter in a cast-in-place pile includes an agitating apparatus. The agitating apparatus includes a pipe having a longitudinal axis which extends into the ground, and two nozzles are respectively disposed on and supported on the pipe. Each of the plurality of nozzles produces a directional jet flow of liquid. Additionally, an arrangement is provided for supplying liquid under pressure to the two nozzles. The two nozzles are spaced apart a predetermined distance along the longitudinal axis of the pipe, and are oriented such that fluid flow from the two nozzles intersects at a predetermined radial distance from the pipe, so that a cross jet flow is established at the predetermined radial distance to establish an outermost mixing of hardener and settable mixture. A final hardened pile diameter forms at the predetermined radial distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.