The use of a remotely piloted aircraft system (RPAS) and digital photogrammetry is valuable
for the detection of discontinuities in areas where field mapping and terrestrial …

This paper presents a new method for extracting blocks and calculating block size
automatically from rock surface 3D point clouds. Block size is an important rock mass …

A new semi-automated method is proposed in this study that detects joint traces from digital
images and calculates the length distribution through three-dimensional data structuring …

Rockfalls are very rapid and damaging slope instability processes that affect mountainous
regions, coastal cliffs and slope cuts. This contribution focuses on fragmental rockfalls in …

The research that is presented in this thesis investigates the possibility of using point cloud
data from 3-D terrestrial laser scanning as a basis to characterise discontinuities in exposed …

ABSTRACT ABSTRACT: Outcrop-scale directional roughness profiles can be extracted from
photogrammetric or laser scanner point clouds using a straightforward five step procedure …

Rockfall events consist one of the most hazardous geological phenomena in mountainous
landscapes, with the potential to turn catastrophic if they occur near an anthropogenic …

The spatial distribution of discontinuities and the size of rock blocks are the key indicators for
rock mass quality evaluation and rockfall risk assessment. Traditional manual measurement …

This study investigates in depth Terrestrial Laser Scanning technology (TLS), its working
and measurement principle, 3D Terrestrial Laser Scanning softwares and the advantages of …

Discontinuities in rock mass are the characteristic challenge of rock tunnel engineering
projects, which have a vital impact on rock mass exposures' mechanical and hydrological …