Method and system for ensuring the quality of a multi-component mixture for rock reinforcement
US11454115B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2018 |
| Grant date | Sep 27, 2022 |
| Priority date | — |
| Expiry date | Oct 19, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D20/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for ensuring the quality of a multi-component mixture in a system for rock reinforcement is described herein. The system comprises a first and a second channel for a respective first and second component intended for injection in a rock hole. The respective channel comprises a pump and a container intended for the respective component. The method comprises the steps of pumping of the respective component from the respective container through the respective channel and continuously comparing the flow of the first component in the first channel with the flow of the second component in the second channel. The method further comprises the step of controlling the pumps individually, based on the comparison of the flows, in such a way that a deviation from a pre-defined volume ratio between the first component and the second component in the mixture is below a pre-defined first threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.