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Author : Robert M. Becker,Verne E. Hooker
Publisher : Unknown
Page : 32 pages
File Size : 49,5 Mb
Release : 1967
Category : Rock pressure
ISBN : UOM:39015078540948
Author : Verne E. Hooker,Charles F. Johnson
Publisher : Unknown
Page : 38 pages
File Size : 54,8 Mb
Release : 1969
Category : Rock mechanics
ISBN : UOM:39015078538439
Author : Richard A. Farrow
Publisher : Unknown
Page : 20 pages
File Size : 50,5 Mb
Release : 1973
Category : Rock deformation
ISBN : IND:30000140454186
A new laboratory technique for measuring orthotropic deformation anisotropy in single rock specimens and comparison of results with structural features in the source rock mass.
Author : J.A. Hudson
Publisher : Elsevier
Page : 971 pages
File Size : 50,8 Mb
Release : 2014-06-16
Category : Technology & Engineering
ISBN : 9781483297972
Rock Testing and Site Characterization
Author : David L. Bickel
Publisher : Unknown
Page : 36 pages
File Size : 43,6 Mb
Release : 1985
Category : Rock mechanics
ISBN : UOM:39015078458562
Author : Bernard Amadei
Publisher : Springer Science & Business Media
Page : 498 pages
File Size : 40,9 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9783642820403
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.
Author : David L. Bickel,Douglas A. Donato
Publisher : Unknown
Page : 52 pages
File Size : 42,6 Mb
Release : 1988
Category : Coal mines and mining
ISBN : UOM:39015078479287
Author : Robert M. Becker
Publisher : Unknown
Page : 24 pages
File Size : 51,6 Mb
Release : 1968
Category : Rock pressure
ISBN : UOM:39015078536995
Author : A. Gene Collins,William P. Zelinski,Cynthia A. Pearson
Publisher : Unknown
Page : 526 pages
File Size : 47,6 Mb
Release : 1967
Category : Oil field brines
ISBN : STANFORD:36105006336569
Author : Mohd Jamaludin Md Noor
Publisher : CRC Press
Page : 329 pages
File Size : 43,5 Mb
Release : 2020-12-27
Category : Technology & Engineering
ISBN : 9781000262131
This book is about the principal concept of soil mechanics that become the basis in explaining the soil mechanical behaviours. It is the extended concept of effective stress of Terzaghi and it is known as "the concept of effective stress and shear strength interaction." This new concept incorporates the role of mobilised shear strength developed within the soil body in resisting the compressive effect. Based on this new concept a comprehensive soil volume change framework has been developed known as Rotational Multiple Yield Surface Framework (RMYSF). This RMYSF is able to explain and quantify the puzzled and complex soil volume change behaviours. The main advantage of this RMYSF is that it is able to make a good prediction of soil and rock stress-strain responses at any effective stress. This will lead to accurate prediction of soil and rock settlements. Due to its simplicity and the comprehensive nature of this new fundamental concept in soil and rock mechanics, it will eventually be included in soil and rock mechanics syllabus for undergraduate and postgraduate courses. This book would be very useful for geotechnical engineers dealing with soil settlement, underground excavation, computer modelling, rock mechanics, road engineering, earth and rock dam engineering and tunnel engineering.
Author : Anonim
Publisher : Unknown
Page : 198 pages
File Size : 51,7 Mb
Release : 1988
Category : Mineral industries
ISBN : UCBK:C021031025
Author : Leopold Müller
Publisher : Springer
Page : 389 pages
File Size : 40,8 Mb
Release : 2014-05-04
Category : Technology & Engineering
ISBN : 9783709141090
Much of the research on fracture of rocks or rock-like materials conducted over the past two decades may be considered as "academic studies" of the general phenomenon of fracture. Yet, the understanding of this phenomenon is fundamental if a material is used in any engineering design, whether the aim is to prevent failure of the structure or to promote it. Fracture theories existing are generally empirical and derived from experimental results of laboratory test with simple boundary conditions. Because of the basic weakness of rock intension and because in general the environmental stresses in rock mechanics are compressive most of these theories consider fracture under compressive stress conditions. The Coulomb-Navier-, the Mohr-, the Griffith and the McClintock and Walsh criteria are typical examples and will be considered in the following. In addition the tendency during the past was in making accurate experiments under conditions of homogeneous stresses. To obtain information about the fracture behaviour with unequal principal stresses systems have to be used which involve inhomogeneous stresses. This case is of particular interest, since in practical rock mechanics we may expect conditions of highly inhomogeneous stresses. However, a consideration of such situations involve additional assumptions like the applicability of the theory of elasticity for calculating the stress field, which may be open to question. A distinction has to be made between fracture initiation and fracture propagation, since a detailed observation of the total fracture process in rock was possible by means of "stiff" and "servo-controlled" loading systems.
Author : William L. Ellis,J. E. Magner
Publisher : Unknown
Page : 64 pages
File Size : 42,8 Mb
Release : 1982
Category : Borings
ISBN : ERDC:35925000639754
Author : Anonim
Publisher : Unknown
Page : 20 pages
File Size : 50,9 Mb
Release : 1973
Category : Geology
ISBN : RUTGERS:39030040728307
Author : James R. Aggson
Publisher : Unknown
Page : 18 pages
File Size : 48,6 Mb
Release : 1977
Category : Core drilling
ISBN : UOM:39015078483040
