Cell for the triaxial stress testing of a rock sample and a testing method using such a cell
US5025668A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Jun 30, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a cell for the triaxial stress testing of a rock sample, comprising a central body in which is placed a membrane enclosing said sample and exerting lateral stresses thereon, as well as a vertical pressure means acting on a section of the sample, said cell further comprising means for measuring the deformations of the sample related to the stresses which are applied thereto. The membrane has a central lateral opening in which the sample is introduced, a lateral external surface coming into contact with the body of the cell and a hollow internal volume forming a chamber providing confinement by means of a fluid introduced through an orifice.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.