... conditions are not common: there are only a few attempts to correlate machine data with geotechnical conditions during excavation and in most cases the use of machine data is related to assessment of TBM performance for prediction of advance rate. The analysis of TBM parameters may represent an interesting...

..., drilling machine specification and rock mass properties. Nonlinear regression model was used to derive the drill rate model. The result indicates high correlation between the estimated and the actual drill rates. In addition, it was found that the uniaxial compressive strength of the rock, the angle...

... that correlate better with the encountered rockmass conditions than several other common parameters. Introduction The Brenner Base Tunnel (BBT) is a railway tunnel that is currently under construction and connects the cities of Innsbruck (Austria) and Fortezza (Italy). With 120 km of main tubes – railway...

... characterization is normally done in terms of one (or rarely more than one) of these systems, and because different mechanical assessment tools used in this and later stages of mining design are typically expressed in any of the systems, it is important to be able to properly correlate rock mass classification...

... density, water absorption, apparent porosity, uniaxial compressive and tensile strength tests were performed to obtain data set for correlation analysis. With water saturation under atmospheric pressure, the uniaxial compressive strength and tensile strength of all studied lithotypes were reduced...

... used to correlate static and dynamic moduli, providing coefficients of determination of 0.99 and 0.97, for slow and quick cooling, respectively. It is also remarkable that the Edyn/Est rate was smaller than 1 for elastic moduli over 30 GPa (i.e., 105, 200 and 400 °C) and greater than 1 for lower moduli...

... reservoir characterization europe government halite rock engineering practice iop publishing iop conf environmental science 833 geological subdiscipline application exploitation safety ermashov theory correlation strength criteria reservoir geomechanics seam deposit potassium seam...

... anisotropy and the flow turbulence, which determines the influence of abrasion and punching of the blocks. The rebound shows a direct correlation with the bulk density and an inverse correlation with the distance to the source area. Introduction Objective How does the alteration of a rock evolve over...

... Abstract Time-dependent rock deformation is considered to precede dynamic failure in many rock-engineering projects and natural geohazards. In order to understand long-term performance of brittle rocks, we gather mechanical load, strain, acoustic emission (AE) and digital image correlation...

... tunnels to determine similarities and differences. reservoir characterization structural geology gotschna tunnel road tunnel reservoir geomechanics upstream oil & gas correlation counter pressure mpa sulphate-bearing rock ground transportation steiner eurock 2020 heave lining...

... or similar classification systems in providing an accurate estimation of TBM penetration rate has had limited success due to the nature of the weights assigned to the input parameters. The results of many investigations on this topic have shown a weak correlation between TBM penetration rate and RMR...

... elasticity machine learning fuzzy logic input parameter procedia engineering 191 dry density correlation uniaxial compressive strength genetic algorithm expression programming Gene Expression Programming equation gep method Reservoir Characterization Upstream Oil & Gas behnia algorithm...

... porosity, density and penetration rate. For prediction of UCS, artificial neural networks were developed between UCS and input data resulting a practical correlation. In this research, a long well segment possessing complete and continuous data coverage has been analysed, and collected data of the wellbore...

... conditions, and thus the potential for dynamic loads. Reservoir Characterization Upstream Oil & Gas metals & mining strength standardized regression coefficient coefficient machine learning structural geology correlation pillar factor safety Maleki mechanics Artificial...

... aggregates. Present study shows the correlation between these important parameters of the rock and tries to propose an empirical equation so that one property can be determine from the others by applying this empirical equation. To estimate the good correlation between the properties of rocks, different...

... was recorded. The rock quality designation (RQD), uniaxial compressive strength (UCS), Brazilian tensile strength (BTS), density (ρ), Schmidt hammer hardness (SHH), Shore Scleroscope hardness (SSH), and Cerchar abrasivity index (CAI) were realized for each zone. Next, the correlations between each possible...

... geomechanics machine learning Upstream Oil & Gas correlation prediction tbm performance prediction tunnel structural geology RMR performance prediction penetration rate maroshi-ruparel water supply tunnel strength TBM performance database estimation Engineering FPI classification system...

... during the construction phase of the Bátaapáti radioactive waste repository. Examinations of the values determined on-site gave significantly different results. Different correlations were determined between the calculated GSI values. 1 INTRODUCTION The Geological Strength Index (GSI ) represents...

... frequencies of the investigated volume. Ground motion at these frequencies was found to be controlled by the main fractures observed at the site and numerical modelling is currently under development for geomechanical and modal analysis of the site. Both spectral analysis and cross-correlation of seismic...

... was to develop a method for evaluation of rock strength in various type and size boreholes to assess in-situ rock strength. Upstream Oil & Gas cutter penetration depth Reservoir Characterization scratch test correlation Detournay strength RSBP rock strength borehole wall Probe University...