... Abstract This work explains the development of a so-called rock mass system performance map, that provides a backdrop to assist in performance interpretation. The rock mass system performance maps presented in this paper are 2D graphical devices prepared using Sammon mappings, Learning Vector...

... the engineering geological mapping of the shaft are described. The geology at Shaft O1 comprises made ground overlying Kallang Formation deposits and then weathered rocks of the Jurong Formation. Development of the ground model included several stages of desk study and ground investigation and ultimately six...

... that also P 32 can be inferred based on trace sampling. upstream oil & gas artificial intelligence environmental science 833 operation rock mech rock engineering theory mapping geologist united states government practice iop publishing iop conf procedure geology discontinuity...

... mechanics research, remote sensing technologies are mainly used for mapping surface geometry and rock discontinuities. However, the characterization of intact rock’s mechanical properties via remote sensing is a technique that has not yet been developed. In this study, spectral information is implemented...

... 45 and 55 degrees. reservoir simulation norway government metals & mining geologist europe government log analysis rock type well logging practice iop publishing iop conf rock engineering satellite sar displacement geology instability mapping italy government theory...

... performed in VR as well as with manual measurements performed in the tunnel. The results demonstrate that all three mapping methods identify three major joint sets with analogous orientations. The automatic fracture mapping method achieves the highest density of the measurements, allows repeatability...

.... These entries are driven unmanned, unventilated and unsupported. Therefore, a detailed knowledge of structural features ahead of operations is essential in assessing the stability of these entries. Highwall mining operations can greatly benefit from accurate structural mapping of rock mass defects...

... documenting the kimberlite domains, (Rolfe and Clement in Nixon, 1973). A 3D geological model of the Main and Satellite pipes was compiled by Namakwa Diamonds Limited (NDL) using Vulcan in 2010, with regular updates to include in-pit geological mapping and the re-logging of exploration drillcore. The most...

... network and are prone to human bias. To increase the reliability of discontinuity models, digital mapping techniques using data from remote sensing, like Close-Range Terrestrial Digital Photogrammetry, were developed. This paper focuses on the plane identification within 3-D point clouds using MATLAB®...

... a larger domain. Advances in LiDAR (Light Detection and Ranging) technology and data processing techniques have developed portable, and accurate devices for three-dimensional mapping of excavations in GPS (Global Positioning System) deprived environments. This technology has the ability to generate large...

... and floor. The results from mapping of the slots shows a longest blast fracture of 24.5 cm for the 0.35 kg/m charge and 24.1 cm for the 0.5 kg/m charged holes. Generally, there is a large spread in the results with few fractures longer than 20 cm. 1 Introduction SKBs Hard Rock Laboratory (HRL) at Äspö...

... comprise six steps: high resolution aerial imagery survey; visual inspection and systematic monitoring; applied field datasheet; in situ evaluation; scanline survey; coastal geosciences engineering GIS based mapping. The Schmidt Hammer and Equotip tester were applied to measure...

... log analysis machine learning well logging reservoir geomechanics Reservoir Characterization Upstream Oil & Gas field mapping shale abu hamour Midra Wellbore Design Buff Qatar shaft limestone tunnel classification correlation discontinuity excavation rock mass...

... Abstract To promote knowledge in rock mass classification methods, a short course was arranged in research tunnels beneath Aalto University in Espoo, Finland. After the course, the participants had a short (45+45 min) hands-on tunnel mapping exercise where they logged 12 core boxes and one 10...

... valuable quantitative information with the resulting data being sufficiently precise to construct realistic digitalized surfaces [Poropat, 2006], [Sturzenegger et al., 2011]. From the structural analysis of this digitalized and georeferenced surface, a DFN can then be set up from the mapping...

... of explosives. However these required the control of slope stability and the recognition of safety of exploitation processes. The scope of performed work included study of documentation, field observations, detailed engineering geology mapping and numerical analysis. In order to determine the rock strength...

... Digital tunnel mapping using terrestrial LiDAR a case study Q. Liu & D. S. Kieffer Graz University of Technology, Institute of Applied Geosciences, Graz, Austria Abstract: This paper introduces the use of 3D Light Detection and Ranging (LiDAR) for measuring rock mass discontinuities and tunnel...

... are used to make a prediction of the ex- pected rock conditions for excavation and rock reinforcement design. In some instanc- es, the results coming from conventional upscaling can t be verified by observations. The differences between the data obtained from the pilot-hole analysis and the tunnel mappings...

... Abstract: 3D imaging has become a frequently used method for gathering quantitative rock mass data and documenting in situ rock mass conditions after excavation. As a supplement to conventional geological mapping it increases working safety and improves data completeness. The method is fast...

... of the pedestrian escape route. Theme: Site Characterization Keywords: Engineering Geological Mapping, Tunneling, Remote Sensing Eurock 2012 Page 2 1 INTRODUCTION In 2010 NGI was commissioned by Nedre Romerike Vannverk (NRV), Norway, to document the excavation of a new cavern for water storage on a daily basis...