Method and device for determining reasonable sampling interval with three-dimensional (3D) laser scanning, and storage medium
US12235098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2024 |
| Grant date | Feb 25, 2025 |
| Priority date | — |
| Expiry date | Sep 15, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining a reasonable sampling interval with three-dimensional (3D) laser scanning includes: collecting rock joints; acquiring point cloud data of the rock joints with 3D laser scanning; performing preprocessing on acquired point cloud data; conducting indoor mechanical tests to determine rock mechanics parameters; calculating, with preprocessed point cloud data of the rock joints, joint roughness coefficients (JRCs) under different intervals obtained from statistical roughness parameters; fitting different relational curves according to a scatter plot between the different intervals and the JRCs to obtain a fitting equation; reversely calculating a JRC of the rock joint sample with the rock mechanics parameters to obtain a reversely calculated JRC; and substituting, according to a relational equation between the different intervals and the JRCs, the reversely calculated JRC into the fitting equation to determine a reasonable sampling interval for roughness evaluation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.