... discontinuity rock mass intern stability Aydan Rock mechanics Engineering Geology slope failure rock engineering ulusay rock slope Symp bimrock Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN 978-1-138-00057-5...

... known classifications are the RMR system of Bieniawski (1973, 1989) and the Q system of Barton, Lien and Lunde (1974) etc. The classifications include information on the strength of the rock material, the spacing, number and surface properties of the structural discontinuities as well as allowances...

... Abstract Most of the discontinuities and joints do not have smooth surfaces and they are covered with random distributed roughness. Finding the effective role of surface roughness on the behavior of discontinuities and on the shear strength of joints makes roughness measurement an important...

... Engineer Reservoir Characterization displacement information machine learning orientation observational approach design stage excavation guideline requirement riedmüller ground behaviour investigation interpretation tunnel discontinuity geotechnical design construction Rock...

... of CIMFR on the samples collected from the field. The geotechnical mapping was done on the exposed benches of the quarry as per the norms of International Society of Rock Mechanics (ISRM 1978). The kinematic analysis was done to determine the critical orientation of structural discontinuities. After...

... 80, but some parts affected by discontinuities and dykes are fairly broken. Layer from 0.0m to 2.65m is residual soil, layer from 2.65m to 9.32m is completely weathered granite residuum, layer from 9.32m to 25.42m is strongly weathered granite, layer from 25.42 to 50.60 is moderately weathered...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Effects of Discontinuities Dip-Direction on Anisotropy Strength A. Ghazvinian & M.R. Hadei Tarbiat Modares University, Tehran, Iran 1 INTRODUCTION Discontinuities are one...

.... Geologic structure refers to the location, orientation, and spacing of discontinuities within the rock mass. These discontinuities include bedding planes, rock joints, faults, and shears. Kinematic analysis is generally is used to evaluate the possibility of blocks or masses of rock moving along geologic...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods 1 INTRODUCTION Rock masses are often intersected by discontinuities, such as regular bedding planes, fissures, fractures, joints or faults, producing many types of structure...

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... empirical relation between the end bearing capacity and the unconfined compressive strength of intact rock, based on a database of 39 test shafts. O'Neill and Reese (1999) recommended using this method when the rock contains mostly closed, horizontal discontinuities. Based on load test data of rock socketed...

... masses that have a lot of discontinuities like as joints, bedding planes, fractures. Generally we call this kind of rock mass with term of discontinuous rock. As well known, the mechanical properties of discontinuous rocks are strongly influenced by the geometrical distribution and its mechanical...

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... University Shanghai 200092, China; 2. Key Laboratory of Geotechnical & Underground Engineering. Ministry of Education, Tongji University, Shanghai 200092, China! 1 1 INTRODUCTION The rock mass is essentially a discontinuous medium due to the presence of various discontinuities at different scales...

... area in more detail. Reservoir Characterization reservoir geomechanics right pressure shaft collapse stratigraphic series shaft SIAH BISHEH Dam wedge Iran pressure shaft slope pop-up structure Rock mechanics discontinuity rock mass Upstream Oil & Gas borehole Thrust Wedge...

... by the number of blocks, i.e. the size, orientation and locations of the discontinuities. Key-block failures occur where blocks of rock which are separated form the rest of the rock mass by discontinuities slide of fall into an excavation. According to the geometric stochastic block theory and reliability...

... of sliding slope can not be obtained. Finite element method is one of the most powerful numerical methods for stress-strain analysis. While, difficulties of FEM are that the constitutive relation of medium is hard to determine and the pre- process for the rock mass containing various discontinuities...