Download or read book Anisotropic Dilatancy and Strength of Jointed Rock Masses and Stress Distribution in Fissured Rock Masses written by Masao Hayashi and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Anisotropy and the Theory of Stress Measurements written by Bernard Amadei and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Any undisturbed rock mass is subject to natural stresses inclu ding gravitational stresses due to the mass of the overburden and possibly tectonic stresses due to the straining of the earth's crust and remanent stresses due to past tectonism. Knowledge of the in situ stress field must be integrated into any rock engineering design along with general rock mass characteristics such as de for mability, strength, permeability and time dependent behavior. For example, the choice of optimum orientation and shape of deep underground caverns or complex underground works will be controlled by the orientation and the magnitude of the in situ stress @ield if it is necessary to minimize stress concentration problems. Long term variation of the in situ stress field may also help to evaluate the potential hazard of earthquake occurences. The magnitude and orientation of the stress field ata point within a rock mass can be measured but there is no known method by which the state of stress at a point can be accurately determined by instruments located remotely. In general, measurements are made inside boreholes, on outcrops or on the internal surfaces of under ground cavities. Most of the measuring techniques intentionally disturb the state of stress in the rock and then measure consequent strains and displacements. Measured strains or displacements are then related to the stresses through assumptions of material behavior. A common procedure is to assume that the rock mass is linearly elastic, isotropic, continuous and homogeneous.
Download or read book Mechanics of Jointed and Faulted Rock written by H.P. Rossmanith and published by Routledge. This book was released on 2018-04-27 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics covered in this text include: geology and structural geology; mechanics; dynamics of jointed and faulted rock; physical modelling and testing; constitutive modelling; seismicity and tectonics; instrumentation; hydraulics; and applications.
Download or read book Stress Distribution in Anisotropic Rock Masses Ridges and Valleys written by Jyh Jong Liao and published by . This book was released on 1990 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book KWIC Index of Rock Mechanics Literature written by J P Jenkins and published by Elsevier. This book was released on 2016-06-03 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: KWIC Index of Rock Mechanics Literature, Part 2: 1969-1976 is an index of subjects in rock mechanics. The KWIC (keyword-in-context) index is produced by cyclic permutation of significant words in the title of the publication. The text covers materials in rock mechanics and geomechanics published around the 70s. The book will be of great use to students, researchers, and practitioners of geological sciences.
Download or read book Scale Effects in Rock Masses 93 written by A. Pinto da Cunha and published by CRC Press. This book was released on 2020-09-10 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings of the 2nd International Scale Effects in Rock Masses, held in Lisbon, June 25, 1993. The text includes coverage of scale effects in the determination of the deformability and strength of rock masses and scale effects in the determination of internal rock masses.
Download or read book Rock Mechanics in Japan written by and published by . This book was released on 1970 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Issues in Rock Mechanics written by Richard E. Goodman and published by Random House Trade. This book was released on 1982 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Mechanism of Anisotropic Dilatancy and Shear Failure of Laminately Jointed Rock Masses written by Masao Hayashi and published by . This book was released on 1968 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Geological Engineering in Discontinuous Rocks written by Richard E. Goodman and published by . This book was released on 1976 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study on Strength and Deformation Characteristic of Jointed Rock Mass written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Several massive, complicated and difficult to design structure are under construction or planning stages under very complex geological condition in India and around the world. Even small variation in appraisal and design can cost millions. Hence initial development of understanding under control condition is very important and desirable for characteristic and prediction of behavior. It is essential to have a clear understanding of strength and deformation behavior of jointed mass for realistic analysis and rational designing of engineering structure .The most important factors which govern the strength of rock mass type are type of rocks, bedding planes, stress condition, presence of cracks and fissures and nature of joint surfaces, presence of minerals in bedding planes also play an important role in the strength and deformation behavior of jointed rock mass. As the in situ determinations of jointed rock mass is costly and time consuming attempts are being made to predict the strength and deformation of rock mass through model test under controlled laboratory conditions Considering the importance of this study the experimental study has been under taken to determine the strength and deformation behavior of jointed rock mass. Models will be prepared using Plaster of paris, cement mad mica and different degrees of anisotropy have been induced by making joints in them varying from 0 to 90 degree. The specimen will be tested under direct shear, uniaxial compression to determine the various parameters.
Download or read book Time Effects in Rock Mechanics written by N. D. Cristescu and published by John Wiley & Sons. This book was released on 1998 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world requires an increasing number of underground facilities for applications such as storage, waste repositories and traffic. Accurate prediction of the stability and deformation of these facilities is essential, and calls for model calculations using reliable and comprehensive constitutive equations describing the mechanical behaviour of the rocks involved, particularly the time-dependent effects. Here the authors combine their knowledge and personal experience in this field to encourage the practical use of material laws based on a sound physical and mathematical basis. Further discussion and research on the time-dependent behaviour of rocks and related materials is supported in the text by more than 200 figures. The text covers elasticity, creep, dilatancy, creep failure and short term failure, experimental techniques and test results, micromechanical deformation mechanisms, viscoplasticity and computation using appropriate constitutive equations, including many fundamental model calculations. Rock mechanics incorporates aspects of many disciplines including structural geology, soil mechanics, material sciences, civil, mining and petroleum engineering, seismology and geophysics. This book will therefore find a wide appreciation amongst engineers, researchers and graduate students in these and other related areas.
Download or read book News written by and published by . This book was released on 1989 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gravitational and Tectonic Stresses in Anisotropic Rock Masses with Irregular Topographies written by Ernian Pan and published by . This book was released on 1993 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geotechnical Abstracts written by and published by . This book was released on 1982 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1992 with total page 1404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Strength And Deformation Behaviour Of Jointed Rocks written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Most rock masses encountered in civil and mining engineering projects contain pre-existing discontinuities. These discontinuities weaken the rock masses to an extent, which depends very much on the size of engineering structure relation to discontinuity spacing. The strength and deformability of rock mass is controlled not only by the intact portion of rock, but by the characteristic of the joints that break up the mass, particularly their pattern and their orientation with respect to the in-situ stresses. In considering the effect of joints, the discrete approach emerged as an efficient tool and advocated since 1970s (Cundall, 1971). However, the numerical approach with modelling the joints explicitly has the limitation of computational complexity for modelling large-scale problems with extremely large number of joints. As an alternative to this limitation, the equivalent continuum approach models the jointed rock masses as a continuum with the equivalent properties that represent implicitly the effects of the joints. Several numerical methods have been developed by various researchers to model jointed rock masses as equivalent continuum, using various techniques. However, the existing equivalent continuum models are complicated and need more input data from experimental or field testing in order to carry out the analysis. Present approach attempts to use statistical relations, which are simple and obtained after analyzing a large data from the literature on laboratory test results of jointed rock masses. Systematic investigations were done including laboratory experiments to develop the methodologies to determine the equivalent material properties of rock mass and their stress-strain behaviour, using a hyperbolic approach (Duncan and Chang, 1970). Present study covers the development of equivalent continuum model for rock mass right from developing statistical correlations to find out equivalent material properties based on experimental results, to the implementat.
