... ABSTRACT: EN-1997 Geotechnical Design-referred to here as EC7 - is a limit states design (LSD) standard that allows application of the Observational method (OM). However, to date, it has not been shown how the OM satisfies the requirements of LSD. In this paper, we investigate this issue. We...

.... As part of this, aWorkshop on the application of EC7 to rock engineering was arranged to be held at Eurock 2014. In this paper, following a brief explanation of both the history of EC7 and the principles of limit state design within the Eurocode suite, the papers submitted to thisWorkshop are unified...

... Abstract This article focuses on the practical theory of how to design (geotechnically and structurally) a strip foundation using only one method based on ultimate limit state (ULS) and serviceability limit state (SLS). The method takes the following into account as geotechnical requirements...

... limit states. The peculiarities due to rock mechanics in the enforcement of the observational method are emphasized. Some directions for active design will be given to better define the method and insure safe design. 1 INTRODUCTION EN 1997-1 named Eurocode 7 (EC7) CEN (2004) deals with geotechnical...

... and the stability analysis of rock slopes in the EC-7 framework. 2 SPREAD FOUNDATIONS ON ROCKS 2.1 Spread foundations in EC-7 According to EC-7 framework, the calculation of any ultimate limit state basically involves the verification of the following expression: where Ed is the design value of the effect...

... not reflect customary modern rock engineering design methodologies. Here, following a brief reviewof various key aspects of the limit state design philosophy adopted by EC7, some of these difficulties in terms of empirical and analytical approaches to rock engineering design are outlined. Wellbore...

... reservoir geomechanics aleatory calculation partial factor method Health & Medicine Reservoir Characterization limit state parameter value Rock mechanics characteristic value Artificial Intelligence Engineering resistance epistemic uncertainty Upstream Oil & Gas strength...

... considerations regarding safety evaluation and limit state design are presented. Several types of Rock Mechanics tests are introduced in some detail, and a few application examples covering different Rock Engineering projects are presented to show how test results can be analysed to determine their values...

... ABSTRACT: For the probabilistic stability analysis of rock wedges formed by two discontinuities the First and Second Order Reliability method is used. This asymptotic method needs a continous formulation of the limit state. In the stochastic model the orientations, trace lengths and shear...