... Abstract The practical algorithm for determination of burst hazard zones using data from an automated system of mining pressure control is suggested. A procedure of an emergence prognosis is designed using the index of burst hazard, KUD, that characterizes the geo-mechanical state of rock...

.... flow in porous media Reservoir Characterization Upstream Oil & Gas reservoir geomechanics Fluid Dynamics specimen ultrasonic measurement malm limestone permeability porosity procedure saturation tensile strength Germany dolomite effective stress limestone ultrasonic wave velocity...

.... Upstream Oil & Gas residual strength procedure sensitivity analysis strength input parameter procedia engineering 191 tensile strength reservoir geomechanics contact cohesion contact tensile strength Reservoir Characterization flat-jointed material particle flow code effective moduli...

... processing of rock surfaces Geometrical model set-up for Discrete Element models based on stochastic evaluation of rock structure at the grain size level Implementation of stochastically distributed micro-cracks into continuum models and Discrete Element models Figure 1 illustrates a procedure based...

... ABSTRACT: Basic friction angle is an essential parameter when estimating shear strength of rock joints, according to Barton's equation and other approaches. Nevertheless, there is still no standard procedure to estimate it by means of laboratory testing. This study investigates the influence...

... ABSTRACT: An enriched finite element procedure is proposed for formulating interaction of steel rock bolt along with multiple joints in a rock mass. This numerical method involves analysis of bolt behavior with varying joint dip angle, bolt angle, joint-bolt-grout properties in extended finite...

... and contrasts the two assessment methodologies in order to show a data management procedure aimed at reducing uncertainty. Wide variations in data quality and quantity implied that key parameters had to be estimated by disparate methods. Enhanced geotechnical characterization and detailed analyses led...

..., material, optimal yielding connections and a scheme of loading. 1 INTRODUCTION Design of steel arch support of roadways is important in coal and ore mining and also tunnelling (small size galleries). Geomechanical methods based on empirical and analytical procedures (mostly in coal mining – Junker 2009...

.... However, the improvement of its monitoring accuracy is a key issue for practical applications. In this paper, a simple multi-temporal analysis is proposed for this purpose. In order to verify the procedure, the monitoring of the subsidence in a city in Indonesia is shown as an example. The results...

... systems. The studies were completed a design procedure for a similar underground mines successfully. 1 Introduction Design of support systems is an important part of planning as well as site applications for a sustainable ore production. The studies are mostly carried out by considering in situ stress...

..., pronounced topographic relief, deep groundwater circulation, transient coupled heat/fluid transfer, uplift/erosion and thermal history. During tunnel excavation the rock temperatures were measured. The procedure has been verified by comparing measurement and prediction under Alpine conditions, namely...

... Surface Model of the cliff obtained with digital photogrammetry. The RBSD is obtained directly by measuring the blocks deposited on the slope. The IBSD and RBSD are well fitted by exponential and potential functions, respectively. We present a procedure to derive the RBSD from the IBSD using a fractal...

... Abstract This study deals with the comparison of the results of shear tests conducted under conditions of constant normal load (CNL) and constant normal stiffness (CNS). The aim was to investigate whether the shear strength results of the two test procedures are comparable and whether...

... overestimation of joint roughness. To denoise the TLS data, two wavelet transforms are applied in combination with different thresholds. The denoising procedure is successfully tested by comparing TLS data obtained on a 20×30 cm joint sample at a range of 10 m, to reference data for the same joint surface...

... in Figure 1. General view of the excavation and piles. a marl soft rock mass. Mechanical parameters such the modulus of elasticity used in the finite elements are the result of an interpretation of the geotechnical survey by the conventional procedures. In-situ measurements of retaining system deformations...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 Procedure for obtaining and analyzing the diametric deformation of a tunnel by means of tape extensometer convergence measures...

...Rock Engineering and Rock Mechanics: Structures in and on Rock Masses Alejano, Perucho, Olalla & Jiménez (Eds) © 2014 Taylor & Francis Group, London, 978-1-138-00149-7 A semi-analytical procedure for circular opening in strain-softening rock masses L. Cui, J. Zheng & R. Zhang Institute...

... MEASUREMENTS IN SAFETY ASSESSMENTS 2.1 The Bayesian approach When applying the observational method, the mea- surements will contribute with geotechnical informa- tion that preferably should be taken into account in assessments of the structural safety. This suggests the use of a Bayesian updating procedure...

... Design calculation rock support Reservoir Characterization procedure determination design method Upstream Oil & Gas ground condition application geotechnical engineering office tunnel prescriptive measure geotechnical category rock engineering excavation construction Rock...

... shear bond testing procedures were trialed. The aim of the tests was to evaluate pure shear bond strength of TSL to the various strata types without the effect of normal stress and to choose the most appropriate test for future routine testing. The first test method utilized the standard double shear...