Verification of a 3-D LiDAR Viewer for Discontinuity Orientations

Otoo, James N.; Maerz, Norbert H.; Li, Xialing; Duan, Ye

doi:10.1007/s00603-012-0366-3

Cited by 17 publications

(3 citation statements)

References 12 publications

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“…The application of remote sensing methods for discontinuity mapping has increased significantly in the last decade. There are several applications of remote sensing techniques in rock engineering practice, such as rock mass characterization (Tonon and Kottenstette, 2006); (Ferrero et al, 2009); (Lato et al, 2009), (Lato et al, 2010); (Gigli and Casagli, 2011); (Lato et al, 2013); (Otoo et al, 2013); (Deliormanli et al, 2014); (Lai et al, 2014), rock slope stability (Strouth et al, 2006); (Ghirotti and Genevois, 2007); (Sturzenegger and Stead, 2009); (Lato and Vöge, 2011); (Lato et al, 2012); (Lato et al, 2015); (Tuckey and Stead, 2016) and underground excavations (Fekete et al, 2010); (Styles et al, 2010); (Fekete and Diederichs, 2013); (Lato and Diederichs, 2014); (Preston et al, 2014); (Walton et al, 2014); (Cacciari and Futai, 2017); (Delaloye et al, 2015); (Villalobos et al, 2017).…”

Section: Methodsmentioning

confidence: 99%

Evaluación de la estabilidad alrededor de un túnel ferroviario usando los datos de un escáner láser y el análisis de elementos finitos

2020

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Geotechnical analysis of tunnels in complex geo-structural environments requires an advanced understanding of the inter-block structure effect on rock mass behavior, such as joints and fractures systems, bedding and foliation planes, among other discontinuity types. The conventional approach for preliminary geotechnical analysis of tunnels is based on a continuous-equivalent system representation of rock mass, i.e. without explicit consideration of systematic discontinuity systems. However, to obtain a closer to reality results of the rock mass expected behavior, geo-structural data should be included from the initial stage of geotechnical analysis. A case study is used to analyze the implications of the discontinuity systems inclusion on the rock mass stability around tunnel. Two-dimensional finite element numerical models were developed using three different models to the generation of rock discontinuity systems. The obtained results show that fracture intensity parameter help to generated more realistic two-dimensional DFNs.

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Section: Methodsmentioning

confidence: 99%

Evaluación de la estabilidad alrededor de un túnel ferroviario usando los datos de un escáner láser y el análisis de elementos finitos

2020

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“…Discontinuities manifest themselves in rock cuts and outcropping as fracture surfaces 'facets' that can be measured by LiDAR (Light Detecting and Ranging) or fracture 'traces' that can be measured from optical imaging methods ( Fig. 1; [7][8][9][10]). Measurements of the orientation of facets are recorded in terms of dip direction and dip angle.…”

Section: Introductionmentioning

confidence: 99%

Integrating discontinuity trace and facet orientation Measurements for improved discontinuity data analysis

Maerz

Otoo

2014

International Journal of Rock Mechanics and Mining Sciences

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“…These are conducive to automatic or semi-automated analysis as described in Refs. [32][33][34][35][36][37][38][39]. Fig.…”

Section: Lidar Discontinuity Orientation Measurementsmentioning

confidence: 99%

Evaluation of Rock Fall Hazards Using Lidar Technology

Maerz¹,

Kassebaum²,

Boyko³

et al. 2015

JCEA

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Lidar (light detection and ranging) is a relatively new technology that is being used in many aspects of geology and engineering, including researching the potential for rock falls on highway rock cuts. At Missouri University of Science and Technology, we are developing methods for measuring joint orientations remotely and quantifying the raveling process. Measuring joint orientations remotely along highways is safer, more accurate and can result in larger and more accurate data sets, including measurements from otherwise inaccessible areas. Measuring the nature of rock raveling will provide the data needed to begin the process of modeling the rock raveling process. In both cases, terrestrial lidar scanning is used to generate large point clouds of coordinate triplets representing the surface of the rock cut. Automated algorithms have been developed to organize the lidar data, register successive images without survey control, and removal of vegetation and non-rock artifacts. In the first case, we look for planar elements, identify the plane and calculate the orientations. In the second case, we take a series of scans over time and use sophisticated change detection algorithms to calculate the numbers and volumes of rock that has fallen off the rock face.

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Verification of a 3-D LiDAR Viewer for Discontinuity Orientations

Cited by 17 publications

References 12 publications

Evaluación de la estabilidad alrededor de un túnel ferroviario usando los datos de un escáner láser y el análisis de elementos finitos

Evaluación de la estabilidad alrededor de un túnel ferroviario usando los datos de un escáner láser y el análisis de elementos finitos

Integrating discontinuity trace and facet orientation Measurements for improved discontinuity data analysis

Evaluation of Rock Fall Hazards Using Lidar Technology

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