Test apparatus and method for determining time-dependence failure under constant temperature through high pressure true triaxial loading for hard rock
US10365193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2017 |
| Grant date | Jul 30, 2019 |
| Priority date | — |
| Expiry date | Jul 23, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0256
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for determining time-dependence failure under constant temperature through high pressure true triaxial loading for hard rock, includes a pressure chamber and four actuators, wherein a sample bearing platform is arranged in a center of the pressure chamber, a sample bearing and containing chamber is arranged in a center of the sample bearing platform, and a confining pressure loading oil supply hole is formed in the sample bearing platform, and communicates with a confining pressure loading injection pump; each actuator includes a sealing cover, an annular end cover, a counter-force cylinder barrel, a piston, a piston rod, a sealing flange and a stress loading injection pump; a heating coil is arranged in the pressure chamber; a force sensor is fixedly mounted at the end part of the piston rod; and a pressure sensor is mounted in the sample bearing platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.