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Keywords: point cloud
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1979
... flight planning and high-resolution point cloud mapping as a means to optimize interramp and catchment designs when pit access is limited or unavailable. Introduction Recent advancements in drone technology have created opportunities for geotechnical analyses using remote sensing in open pit mines...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1254
... point cloud data into a rockfall database that inventories rockfall events. The semi-automated workflow makes it possible to reduce the amount of processing time and manual effort required to create a usable rockfall database, subsequently allowing for analysis of high temporal resolution LiDAR data. We...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2014
... introduces a procedure for identifying and extracting rock block structural elements directly from LiDAR point clouds using open source algorithms to support BSS analyses. The approach offers a road map for tackling the details of discrete fracture network generation and block mould computations. As a case...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2076
... data metals & mining trueness application lidar data quality change detection evaluation machine learning upstream oil & gas monitoring deformation analysis slam-based mobile lidar workflow stencil 2 data collection mms data precision scan station point cloud epoch ARMA 21...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2027
... characteristics of the main discontinuity surfaces from the photogrammetric 3D point cloud. In addition, this study was contributed by field measurements and laboratory tests of the rock joint strength for the analysis of the slope stability of the rock blocks. A set of corresponding discontinuity factors have...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2057
... mass characterization, based on the above-mentioned GSI quantification, utilizing both LiDAR and photogrammetry point clouds from several rock slopes. The proposed semi-automated methodology leads to the extraction of space-resolved GSI values for the entire slope, by automatically assessing...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0038
... mapping engineer geoscientist point cloud 1. INTRODUCTION Large catastrophic landslides are among the most dangerous of natural hazards, causing billions of dollars of damage and thousands of fatalities around the world every year (Clague and Roberts, 2012). With a large increase in global population...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1792
... ABSTRACT: This paper presents a rock-slope kinematic analysis using a robust workflow that combines geologic reconnaissance with UAV-based photogrammetric methods. The photogrammetric workflow generates high-density, georeferenced, three-dimensional point clouds in true-color, enabling us...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-284
... geological scene including point clouds data to characterize the geometric features of engineering geological scene and image data to characterize the visual features of engineering geological scene. A double-nested Mean-shift clustering and a region growing are carried out to extract discontinuities...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-516
... contextcapture point cloud stope imagery total station photogrammetry control point Artificial Intelligence adam technology mapping software flight 1. INTRODUCTION Current remote sensing techniques commonly used for capturing data in underground environments include using terrestrial or machine...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-508
... mining environment. Artificial Intelligence loose ground UAV software loose rock underground mining environment structural data stope metals & mining pixel bentley contextcapture thermal imagery draw point lighting system imagery flight Guidance System rock mass point cloud...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-015
... the discontinuity shear behavior. Reservoir Characterization Upstream Oil & Gas roughness Wellbore Design rock discontinuity sample printing Rock mechanics Artificial Intelligence pla mold discontinuity sample discontinuity replicate roughness level reservoir geomechanics point cloud mold...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1211
... and control points. Although each software package is able to create the desired point clouds, different techniques are used to produce them. For a geotechnical investigation, it is important to understand the accuracy of the software being used in order to have confidence in the reliability of the digital 3D...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0236
... & mining discontinuity surface rockfall facet plane roughness Bridge cohesion non-coplanar rock bridge point cloud fracture Upstream Oil & Gas contact wall surface area stability rock bridge hydraulic fracturing rockfall scar Proportion discontinuity excavation Indicator 1...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0389
... high frequency perturbation algorithm differentially weathered fractal dimension point cloud Upstream Oil & Gas Profilometer laser profilometer photogrammetry Laser 1. INTRODUCTION The roughness of rock surfaces is of interest to many practitioners and researchers. Rock surface...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0621
... Corridor reservoir geomechanics ground transportation railway line application point cloud MCA instability priority map defense structure risk management central italy hazard landslide hazard Plan Mitigation strategy trench stability index artificial trench 1. INTRODUCTION The Italian...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-540
... collected at this site can be divided into two types. The first type is the overall trends of small to medium-sized discontinuities such as short joints and small fracture faces that appear consistently in the LIDAR point clouds. When added to the numerical model, these fractures can be applied throughout...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-507
... thematic image training image machine learning roughness discontinuity point cloud rock mass parameter rock mass classification plane digital outcrop model 1. INTRODUCTION In mining and civil operations, such as pit design, tunneling, and road construction, it is essential to determine rock...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-678
... be very difficult, or expensive to access. Two example landslides are presented in this contribution. Structure-from-motion photogrammetry was used to generate 3-D point clouds and meshes for each site. These models were geometrically scaled using field survey measurements and used as the primary...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-040
... mechanisms and determine the most likely areas of potential instability. Upstream Oil & Gas Simulation discontinuity Reservoir Characterization cornwall quarry hydraulic fracturing orientation DFN geometry complex reservoir instability realization point cloud stability analysis...

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