... 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...

... 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...

... 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...

... 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...

...]. 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...