... properties (mean, standard deviation, coefficient of variation) of test results have been investigated. Besides, the probability distributions of the test parameters have been analysed along with normality tests. According to this statistical treatment, it was seen that, while the chipping force, the chip...

... Reservoir Characterization Upstream Oil & Gas metals & mining strength standardized regression coefficient coefficient machine learning structural geology correlation pillar factor safety Maleki mechanics Artificial Intelligence coal bump potential heather lawson procedia...

... signals. Each signal is associated with an event of destruction (initiation of a new microcrack or growth of an existing one); for this reason, interpretation of such stochastic information uses: metals & mining wave velocity coefficient Nazarova Upstream Oil & Gas inverse problem...

... ultrasonic waves velocity, thermal conductivity and volumetric heat capacity. well logging silesian granite coefficient kožušníková Reservoir Characterization granite sample porosity granite Upstream Oil & Gas ultrasonic wave velocity procedia engineering 191 log analysis physical...

... of the impact hammer, a single regres- sion analysis was conducted using IBM SPSS (2013). The coefficient of determination (R2) was chosen to be used for comparing the goodness of fits. The relation between RQD and IBR is presented in Equation 2. A moderate relationship (R2 = 0.78) between RQD and IBR...

... measurements as well as aerial photos are used to prepare slope profiles. According to previous rockfall evi- dences, back analyses are performed to identify the slope surface characteristics like restitution coefficients. For each profile, different rock size and shapes are simulated and corresponding runout...

... of water for carbon capture and storage (CCS) study. The effective pressure law for permeability is associated with curved iso-permeability lines. We can express the effective pressure as P eff = P c — χ(P c ,P p )P p , where the coefficient χ corresponds to the slope of iso-permeability line according...

... uniaxial compressive strength vesicular basalt Turkey rock material vesicle uniaxial compression strength test void ratio porosity coefficient core sample Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138...

... the compo- nents of the force acting on cables and the maximum displacement during the filling of barrier. The load is considered as a sum of a dynamic (qd) and a static (qs) component as it is shown in the following equations: where = dynamic coefficient; f = density of the debris in kg/m3; vf = flow...

... be re-calculated by using proposed the coefficient. 1 INTRODUCTION Characterizing the tensile strength of rocks thus is of great importance in many engineering and geophysi- cal applications (Dai et al. 2010). The tensile strength is a key parameter for determining the load bearing capacity of rocks...

... & Dewitt 1990, Hasan 1999, Canakci et al. 2007). unfilled travertine sample specimen travertine sample Upstream Oil & Gas thermal parameter change coefficient specific heat capacity travertine Reservoir Characterization ts cycle thermal property investigation thermal conductivity...

... despite the difference between the coefficients of these empirical relationships. The methodology was applied to case studies (France). The application of these relationships can help to explain the collapse of Clamart mine (Paris). Generally, and in the absence of data, it will certainly be more prudent...

... Upstream Oil & Gas coefficient numerically Reservoir Characterization flat jack testing geometry interfel corporation rock mass sensor location jack coefficient flat jack test in-situ rock mass testing reservoir geomechanics rock mass deformation deformation modulus test...

... stress coefficient machine learning Upstream Oil & Gas back analysis Narmab Water Conveyance Tunnel Artificial Intelligence average horizontal intelligent back analysis rock mass elasticity module artificial neural network tunnel ABSTRACT: As substitution method, artificial neural...

... coefficient harmonic component Fourier analysis RocFold case study ABSTRACT: The first step to determine mechanical and hydraulic properties of rock masses is the evaluation of geometrical characterizations of discontinuities. Discrete Fracture Network models have been developed to model...

... relationships between Schmidt hardness and UCS with higher coefficients of correlation are summarized in Table 1. Table 1. Correlations between Schmidt hammer hardness and uniaxial compressive strength (UCS). Researcher Equation R Rock Type Katz et al. (2000) Ln UCS = 0.792 + 0.067 N ± 0.231 0.96 7 different...

... 25 25 25 25 25 3 TEST RESULTS AND DISCUSSION 3.1 Coefficient of friction The stress distribution during the shear test can also be interpreted using the friction coefficient. This mobilized coefficient indicates the relative shearing resistance and it can be derived from the relationship between...

.... This paper aims to assess and analyse rockfall susceptibility along the main road leading to the Giants Castle Nature Reserve, in the northern Drakensberg, South Africa. runout zone Rockfall Hazard rockfall susceptibility analysis structural geology Simulation coefficient road alignment ground...

... sparse and limited to 2D profiles measurements. Therefore, many existing roughness parameters are based on 2D profiles including the Joint Roughness Coefficient (JRC), maximum asperity angle (Patton 1966) and different statistical parameters, e.g. roughness profile index or average angle (Papaliangas...

... Abstract In this study, the effects of textural properties of grains such as aspect ratio, roundness, and diameter on the LCPC abrasivity coefficient (LAC) were investigated for six different coarse-grained igneous rocks. The LAC was correlated to the abrasive mineral contents (AMC) and a good...