Process and assembly for determining the radius of a ground element which can be produced by jet grouting
US10053831B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2014 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jan 6, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B17/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for determining the radius of a pile in the ground that can be produced by means of a jet-grouting process, comprising the steps of: introducing at least one level-measuring stick into the ground; sinking a jet-grouting tool (3) down to a defined distance from the level-measuring stick (4), the distance being less than a maximum range R of the grouting jet; pulling the jet-grouting tool (3) while performing a rotating or swivelling motion with the grouting jet activated, thereby producing vibrations as the grouting jet passes the level-measuring stick (4); and recording a signal representative of the vibrations at the at least one level-measuring stick (4) by means of a sensor (5) that is fastened to the level-measuring stick (4). The invention also relates to a corresponding arrangement (2) for determining the radius of a pile in the ground that can be produced by means of a jet-grouting process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.