... system metals & mining upstream oil & gas support design reservoir characterization structural geology rock mass classification system ground condition eurock 2020 rock mass shotcrete excavation ground behaviour model implementation data collection difficult ground condition...

... if not considered during the design stage. While the classic classification systems for rockmass assessment can give useful information about the quality of a rockmass in general (based on an assumption of structural isotropy), kinematics, structural and anisotropic response must be considered for layered systems...

... Abstract Existing rock mass classification systems, such as rock mass rating (RMR) are often used in many empirical design practices in rock engineering contrasting with their original application, i.e. estimation of TBM performance in various ground conditions. However, the use of RMR...

... 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...

... classification systems. For numerical calculations and for the interpretation of monitoring results different strengths of the rock mass are taken into account as the ground behavior is sensitive when varying the input parameters. 1 Introduction The geotechnical design of an underground excavation nowadays...

... experience makes design by calculations unnecessary. Information of local experience is seen as particularly relevant. As most classifications systems are systematic documentation of earlier experience of rock constructions, they qualify as prescriptive measures. The paper shows which parts of e.g. the Q...

... topics such as the implications of the discontinuous nature of rock masses, limit states and failure modes, strength criteria, characteristic values and partial factors for rock mass parameters, rock mass characterization, use of classification systems in design, among the most significant issues. 1...

... Artificial Intelligence criteria discontinuity classification system outdated natural language underground structure tunnel design requirement rock mass Palmström machine learning Engineering Rock mechanics hazard excavation tunnel text classification empirical method...

... natural language Engineering Reservoir Characterization structural geology mass rating rock mass rating system metals & mining Upstream Oil & Gas correlation excavation rock mass rating ermr value classification system machine learning Artificial Intelligence ERMR System...

...- ments. Most rock engineering and rock mass classification systems were developed based on tunneling and civil applications of rock, soil mechanics and case histories. The current challenges faced by many underground mine operators working on exca- vations in poor ground are to ensure a safe working...

... level radioactive waste repository in Bátaapáti, various geotechnical data were collected. The tunnel faces were documented continuously using different rock mass classification systems for determining the excavation support system. The aim of this paper is to compare the three broadly used rock...

... of rock mass conditions. Rock mass classification systems provide more insight into rock mass conditions. Today, two scientific approaches, the empirical and numerical, are widely used in support design of underground mine openings. Whereas empirical design is based on rock mass classifications...

... ABSTRACT: The influence of rock mass properties on TBM performance was studied and a new empirical equation for predicting TBM performance in Alborz Service Tunnel developed by using multiple linear regression analysis in this study. Fabric indices of four rock mass classification systems...

... for establishing the geometry of wedge rock blocks of fractured rocks. A simple new classification system was developed for the construction of the model. The main advantage of this new geometric model is that it presents more practical and rapid solutions for potential failure mechanisms than other classical...

... by sensitivity analysis of rock mass classification related empirical equations. Results show that the influence of rock mass environment on rock mass modulus is more than intact rock strength especially in RMR and GSI classification systems. Whereas, difference of intact rock strength and rock mass environment...

... ABSTRACT Rock mass classification systems, with suitable modifications, serve as a simple empirical approach for the design of various underground mine structures. There is a continuous effort both towards improving the scope of some of the existing classification systems as well...

... An overview is given of a series of classification systems used for rock slope stability analyses. Calculation methods and parameters used seem not always appropriate for slopes stability and could be improved. Based on this evaluation some new ideas developed of how a system for slope stability...

... to deal with them, In particular, tile applicability of the most common rock mass classification systems will be discussed in tile paper. Tunnelling in volcanic rock mass have been experienced elsewhere too, however, as a first step in gathering experiences it was considered sufficient to include projects...

... on a current rock classification system, would have resulted in shotcrete and comprehensive pattern bolting along approximately half of the tunnel stretch. However, the tunnel was completely unsupported, but still in good Condition with rock falls totalling less than 4 m 3 , most of which could be related...

... the headland. planar joint shear zone tunnel route Reservoir Characterization orientation classification system Bieniawski Rock mass Rating sidewall stability pen-y-clip tunnel tunnel portal section rock mass RMR system Upstream Oil & Gas engineering group headland excavation...