TY - BOOK AU - Mogi,Kiyoo TI - Experimental rock mechanics T2 - Geomechanics research series SN - 0415394430 U1 - 624.15132 22 PY - 2007/// CY - London PB - Taylor & Francis KW - MECÁNICA DE ROCAS N1 - Preface Part I DEFORMATION AND FRACTURE OF ROCKS Chapter 1 PRECISE MEASUREMENTS OF FRACTURE STRENGTH OF ROCKS UNDER UNIFORM COMPRESSIVE STRESS 1.1 Present specimen design 1.2 Effect of length/diameter ratio to apparent strength and fracture angle 1.3 Comparison with the conventional method 1.4 Decrease of the end effects by confining pressure References Chapter 2 DEFORMATION AND FAILURE OF ROCKS UNDER CONFINING PRESSURE 2.1 Deformation characteristics (a) Experimental procedure (b) Stress-strain relation (c) Modulus of elasticity (d) Permanent strain (e) Effects of previous loading (1) Hydrostatic pressure (2) Axial compression (f) Yield stress (g) Summary of the deformation characteristics 2.2 Pressure dependence of compressive strength and brittle ductile transition (a) Relation between strength and confining pressure (b) The Coulomb-Mohr fracture criterion (c) Brittle-ductile transition References Chapter 3 DEFORMATION AND FRACTURE OF ROCKS UNDER THE TRIAXIAL COMPRESSION - The effect of the intermediate principal stress 3.1 History of compression experiments (a) Axial loading under lateral pressure (b) True triaxial compression test 3.2 Comparison between compression and extension under confining pressure (a) Introduction (b) Experimental procedure (1) confined compression test (2) confined extension test (c) Specimen materials (d) Experimental results (1) Examination of isotropy and homogeneity by uniaxial compression tests (2) Comparison of confined compression and extension tests 3.3 True triaxial compression experiments (a) Introduction (b) Design of the true triaxial apparatus (c) Specimen design and strain measurement (d) Experimental procedure and rocks studied (e) Experimental results (1) - Stress-strain curves and fracture stresses (1) Dunham dolomite (2) Solnhofen limestone (3) Yamaguchi marble (4) Mizuho tracyte (5) Manazuru andesite (6) Inada granite (7) Orikabe monzonite (8) Summary (f) Experimentasl results (2) ¿ Yield stresses (1) Dunham dolomite (2) Solnhofen limestone (3) Yamaguchi marble (g) Failure criteria of rocks (1) Previous studies (2) Fracture criterion (3) Yield criterion (4) Summary (h) Ductility, fracture pattern and dilatancy (1) Ductility and stress drop (2) Fracture pattern (3) Dilatancy (i) Fracture of inhomogeneous rock and anisotropic rock (1) Inhomogeneous rock (2) Anisotropic rock (j) Other recent experiments (k) Future problems References Appendix Part II ACOUSTIC EMISSION (AE) Chapter 4 AE ACTIVITY 4.1 Introduction 4.2 AE activity under simple loadings References Chapter 5 SOURCE LOCATION OF AE 5.1 Experimental procedure (a) Measurement of very high frequency elastic waves (b) Determination of source location of AE events 5.2 Experimental results (a) Granite (heterogeneous silicate rock) (b) Andesite ( moderately heterogeneous silicate rock) (c) Mizuho trachyte (nearly homogeneous silicate rock) (d) Yamaguchi marble with different grain sizes (e) Fracture of a semi-infinite body by an inner pressure source References Chapter 6 MAGNITUDE-FREQUENCY RELATION OF AE EVENTS 6.1 Introduction 6.2 Experimental procedure and specimen materials 6.3 The m value in Ishimoto ¿ Iida equation 6.4 Types of the magnitude ¿ frequency relations and structure of medium 6.5 Effects of measurements by different frequencies and different dynamic ranges of acoustic waves References Chapter 7 AE UNDER CYCLIC LOADING 7.1 Effect of tidal loading (a) Introduction (b) Observations of AE events directly above the focal region of the 1980 earthquake swarm (c) Seismic activity and ocean tide 7.2 AE under cyclic compression (a) Experimental procedure (b) AE events under cyclic compression 7.3 AE under cyclic bending (a) Introduction (b) Experiment A (c) Experiment B (d) Concluding Remarks References Part III ROCK FRICTION and EARTHQUAKES Chapter 8 LABORATORY EXPERIMENT OF ROCK FRICTION 8.1 Introduction 8.2 New design of a double shear type apparatus 8.3 Experimental result References Chapter 9 TYPICAL STICK SLIP EVENTS IN NATURE AND EARTHQUAKES 9.1 Introduction 9.2 Usu Volcano and Unzen Volcano, Japan 9.3 Sanriku-oki and Tokai-Nankai regions, Japan 9.4 Stick slip and fracture as an earthquake mechanism References Chapter 10 SOME FEATURES IN THE OCCURRENCE OF RECENT LARGE EARTHQUAKES 10.1 Global pattern of seismic activity 10.2 Active and quiet periods in the main seismic zones (a) Alaska-Aleutian-Kamchatka-N.Japan (b) Alps-Himalaya-Sunda 10.3 Some precursory seismic activity of recent large shallow earthquakes (a) Introduction (b) 2001 Bhuj (India) earthquake (c) 2003 Tokachi-oki (Japan) earthquake References; MIN 242 (Ingeniería Civil en Minas) Asignatura: Mecánica de rocas UR - http://www.loc.gov/catdir/toc/ecip068/2006004322.html ER -