... Abstract The Structure from Motion (SfM) photogrammetric technique has emerge as an efficient alternative for remote 3D rock mass characterization, compared to laser scanner (LiDAR) or stereoscopic photogrammetry, due to its economy and ease of use. In a similar way, the recent development...

... Abstract Hydro-mechanical properties of a single fracture are governed by several parameters such as contact area, roughness, tortuosity, aperture, channeling, matedness, sample sizes, normal stress, flow regime, and flow boundary conditions. In this study, photogrammetry with numerical...

... engineer. The parameters resulting from the investigation, such as discontinuities, orientations and spacings, potential rockfall initiation locations, slope geometry, and ditch profile, are either measured or estimated. We propose a photogrammetry-based method for estimating the probability of failure...

... degradation of the material, a variation of their rheology and a possible sudden deterioration of stability which requires continuous monitoring. In recent years, there has been a rapid development of a new survey technique in the geotechnical field: drone-based photogrammetry. Together with terrestrial laser...

... Abstract Photogrammetry and optical televiewer are used to investigate discontinuities occurring in the highwall of the bench and in eleven blastholes in two blasts. The measuring conditions involve lower resolution for photogrammetry models. Discontinuity mapping was done manually by the same...

... Abstract The knowledge of geometrical properties of discontinuities is of crucial importance in the rock mass characterisation process. Recent advances in photogrammetry allow for an easy digitisation procedure of rock surfaces so that digital 3D models can be used for remote site...

... Abstract The estimation of the mechanical properties of rock joints is crucial in terms of safety when it comes to design of slopes in open pit mines or caverns used for the storage of hazardous materials, for instance - nuclear waste. Photogrammetry provides a simple, objective method...

... to be used for different purposes. Artificial Intelligence Reservoir Characterization spatial reasoning Upstream Oil & Gas metals & mining accuracy instability Spatial analysis photogrammetry slope instability application procedia engineering 191 point cloud information geometry...

... network and are prone to human bias. To increase the reliability of discontinuity models, digital mapping techniques using data from remote sensing, like Close-Range Terrestrial Digital Photogrammetry, were developed. This paper focuses on the plane identification within 3-D point clouds using MATLAB®...

...-established structure from motion algorithms five surfaces varying in roughness were investigated. Berlin Grasselli choubey 1977 contour gauge Reservoir Characterization roughness Oxford photogrammetry dataset Upstream Oil & Gas rock joint joint roughness coefficient surface roughness...

.... However, in all cases a sound set of data is needed and a large number of discontinuities must be measured, although reaching the slope can be difficult or dangerous. The development of advanced survey techniques, such as digital photogrammetry and laser scanning, has supplied powerful instruments...

... instant geological mapping on digital photographs right in front of a tunnel face is performed and measurements are upgraded to 3D information. 1 INTRODUCTION Photogrammetry is the art and science to measure from photographs with first applications in topographic mapping dating back to 1849 (Slama 1980...

... metals & mining mapping evaluation PlaneDetect surface model eurock 2012 discontinuity orientation mapping photogrammetry discontinuity mapping discontinuity subroutine data collection scanner Engineer application algorithm tunnel Automated discontinuity orientation mapping from...

... Small scale Joint surface roughness evaluation using digital photogrammetry Mikael Nilsson, Catrin Edelbro Luleå University of technology, Luleå, Sweden Glenn Sharrock The University of New South Wales, Sydney, Australia Abstract: This paper presents a procedure on how photogrammetry by simple...

... to arrive at a statistically sound analysis of rock mass discontinuities without elaborate and time consuming data acquisition and data processing. The main advantage over photogrammetry is that laser scanning provides direct co-ordinate measurement and does not rely upon matching approaches to solve...