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1-14 of 14
Keywords: rock face
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Proceedings Papers
Telegraph Hill Rock Slope Improvements
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0761
... strength steel wire mesh installation. Reservoir Characterization stereonet analysis mesh land reclamation shotcrete wire mesh rock fall risk management completion remediation rock slope improvement San Francisco recommendation probability Anchor fracture rock face rock anchor...
Proceedings Papers
Intake Slope Stabilization and Spillway Cut in Rock for Hydropower Projects
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-009
... of the spillway channel is 120 m (395 feet). The bedrock excavation works were completed in 2014. climate change criteria rock face construction renewable energy spillway excavation intake discharge channel spillway wall intake structure intake slope stabilization bedrock excavation pointe du...
Proceedings Papers
Remote Structural Mapping and Discrete Fracture Networks to Calculate Rock Fall Volumes at Tornado Mountain, British Columbia
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-180
... design of the protection structure. rock face structural data mapping calculation dfn upstream oil & gas loose block rock fall source trajectory orientation complex reservoir rock block discrete fracture network dimension remote structural mapping realization structural mapping...
Proceedings Papers
Visual Enhancement of 3D Images of Rock Faces for Rock Mass Characterization
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-182
... Abstract: This paper investigates how 3 dimensional (3D) laser images of rock faces can be processed to highlight several characteristics of the rock mass in three different geological environments. The first scene features large cubic quartzite rock blocks from a road cut. The second scene...
Proceedings Papers
Evaluation Of Rock Faces With Hyperspectral Imaging
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-430
...]. 1. INTRODUCTION Geological data for a rock mass is normally gathered during scan line or cell mapping analysis, where information about the rock is measured by hand [4]. Since these methods are very time intensive and full access to the rock face may be limited, geological information must...
Proceedings Papers
3-D Discontinuity Orientations Using Combined Optical Imaging And LiDAR Techniques
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-367
... ABSTRACT The importance of the collection and analysis of data on discontinuities cannot be overemphasized. Problems which include sampling difficulties, risks, limited access to rock faces and exposures, and the delay in data collection has led to a high need for data collection tools...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-520
... to maintain safe and reliable operations and working conditions. For example, recent CIP work at the Boundary Project required several field efforts to characterize the rock mass of the power plant transformer bay rock face and dam access tunnel in order to mitigate persistent rock fall problems and develop...
Proceedings Papers
Triangulation-Based 3D Laser Imaging for Underground Rock Mass Characterization: Impact of Operational Parameters
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the The 42nd U.S. Rock Mechanics Symposium (USRMS), June 29–July 2, 2008
Paper Number: ARMA-08-249
... the rock face features can be very subtle. A case study was conducted in an underground mine where good correlation was found between joint set orientation measurements acquired manually and with a triangulationbased laser camera. This correlation validates the triangulation-based laser imaging technology...
Proceedings Papers
Digital Ground-based Photogrammetry for Measuring Discontinuity Orientations in Steep Rock Exposures
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1026
... data accuracy SiroVision average difference site 1 orientation accuracy rock face spatial difference reclamation photogrammetry site 4 camera-to-face distance surveyor survey control id difference brunton ARMA/USRMS 06-1026 Digital Ground-based Photogrammetry for Measuring...
Proceedings Papers
Kinematical analyses of rock blocks supported by 3D imaging
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1079
... ABSTRACT: Remote sensing technologies are increasingly applied in the geological and geotechnical engineering. Especially the 3D imaging technology provides important information about the geometry of rock faces and the structure of the rock mass. 3D images provide a dense grid of measurement...
Proceedings Papers
Advanced techniques for geo structural surveys in modelling fractured rock masses: application to two Alpine sites
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-1138
... on the rock face are derived from the DSM in order to perform a deterministic reconstruction of the rock mass and the determination of the rock blocks lying on the slope. Different levels of automation in discontinuity planes detection were implemented: interactive identification of single planes...
Proceedings Papers
Image processing for automatic extraction of rock joint orientation data from digital images
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-0877
... ABSTRACT: A complete algorithm for starting with a digital image of a rock face, automatically delineating traces, and extracting three dimensional joint or fracture orientation data is described. Less emphasis is placed on the pre-processing of the image, as different images require different...
Proceedings Papers
Fracture mapping at exposed rock faces by using close range digital photogrammetry and geodetic total station
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the DC Rocks 2001, The 38th U.S. Symposium on Rock Mechanics (USRMS), July 7–10, 2001
Paper Number: ARMA-01-0829
... ABSTRACT: Fracture mapping at exposed rock faces is one of important approaches to investigate the influence of fractures on mechanic and hydraulic behavior of fractured rock masses. The objective of this study is to apply non-reflector geodetic total station and close range digital...
Proceedings Papers
Catastrophic Failure Of A Tied Back Wall On The Interstate In Charleston, West Virginia
Available to PurchasePublisher: American Rock Mechanics Association
Paper presented at the The 25th U.S. Symposium on Rock Mechanics (USRMS), June 25–27, 1984
Paper Number: ARMA-84-0914
... the rock face and appeared to be in imminent danger of also failing. All of the 21 rock bolts in the panels that fell were separated either at the backface of the wall, in the extension from the wall to the rock face or at the rock face. None of the rock bolts had been pulled out of the bond length...