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1-14 of 14
Keywords: rock face
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Proceedings Papers
Publisher: 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 shotcrete remediation San Francisco rock face risk management completion rock slope improvement recommendation land reclamation wire mesh rock fall Anchor fracture Kemeny construction rock...
Proceedings Papers
Publisher: 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 intake slope stabilization bedrock excavation air emission rock slope spillway structure renewable energy pointe du bois spillway excavation Diameter...
Proceedings Papers
Publisher: 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
... upstream oil & gas loose block rock fall source trajectory rock face structural data mapping calculation dfn orientation complex reservoir rock block discrete fracture network dimension remote structural mapping realization hydraulic fracturing information structural...
Proceedings Papers
Publisher: 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
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
.... 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 a design approach to reroute the transmission lines. As another...
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-11-430
...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
Publisher: American Rock Mechanics Association
Paper presented at the 45th U.S. Rock Mechanics / Geomechanics Symposium, June 26–29, 2011
Paper Number: ARMA-11-367
... 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 and analysis techniques that can overcome these problems. Great developments have been made towards automated...
Proceedings Papers
Publisher: 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
Publisher: 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
... average difference spatial difference natural feature SiroVision surveyor rock face site 4 orientation accuracy orientation accuracy photogrammetry camera-to-face distance brunton survey control id difference ARMA/USRMS 06-1026 Digital Ground-based Photogrammetry for Measuring...
Proceedings Papers
Publisher: 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
Publisher: 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
Publisher: 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
Publisher: 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
Publisher: 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 panels that failed had 25.4 m hollow rock bolts. A portion of each panel adjacent to both sides of the failure was pulled out from the rock face and appeared to be in mminent danger of also failing. All of the 21 rock bolts in the panels that fell were separated either at the backface of the wall...