## Rock Mechanics: For underground mining (Google eBook)Although Rock Mechanics addresses many of the rock mechanics issues which arise in underground mining engineering, it is not a text exclusively for mining applications. It consists of five categories of topics on the science and practice of rock engineering: basic engineering principles relevant to rock mechanics; mechanical properties of rock and rock masses; design of underground excavations in various rock mass conditions; mining methods and their implementation; and guidelines on rock mechanics practice. Throughout the text, and particularly in those sections concerned with excavation design and design of mining layouts, reference is made to computational methods of analysis of stress and displacement in a rock mass. The principles of various computational schemes, such as boundary element, finite element and distinct element methods, are considered. This new edition has been completely revised to reflect the notable innovations in mining engineering and the remarkable developments in the science of rock mechanics and the practice of rock engineering that have taken place over the last two decades. Based on extensive professional, research and teaching experience, this book will provide an authoritative and comprehensive text for final year undergraduates and commencing postgraduate students. For professional practitioners, not only will it be of interest to mining and geological engineers but also to civil engineers, structural and mining geologists and geophysicists as a standard work for professional reference purposes. B.H.G. Brady is Emeritus Professor and former Dean of the Faculty of Engineering, Computing and Mathematics at The University of Western Australia, and a consulting rock mechanics engineer. E.T. Brown is Senior Consultant, Golder Associates Pty Ltd, Brisbane, Australia and formerly Senior Deputy Vice-Chancellor of The University of Queensland, Australia. |

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a very nice and a well defined one

### Contents

1 | |

17 | |

Rock mass structure and characterisation | 46 |

Rock strength and deformability | 85 |

Premining state of stress | 142 |

Methods of stress analysis | 165 |

Excavation design in massive elastic rock | 197 |

Excavation design in stratiﬁed rock | 224 |

Artificially supported mining methods | 408 |

Longwall and caving mining methods | 430 |

Mininginduced surface subsidence | 484 |

Blasting mechanics | 518 |

Monitoring rock mass performance | 543 |

Basic constructions using the hemispherical projection | 568 |

Stresses and displacements induced by point and infinite line loads in an infinite isotropic elastic continuum | 574 |

Calculation sequences for rocksupport interaction analysis | 575 |

Excavation design in blocky rock | 242 |

Energy mine stability mine seismicity and rockbursts | 271 |

Rock support and reinforcement | 312 |

Mining methods and method selection | 347 |

Pillar supported mining methods | 370 |

Limiting equilibrium analysis of progressive hangingwall caving | 580 |

Answers to problems | 585 |

589 | |

614 | |

### Common terms and phrases

analysis angle angle of friction applied axial axis backﬁll behaviour blast block borehole boundary stresses calculated compressive compressive strength country rock crack deﬁned deformation determined difﬁculty discontinuity displacement drawpoints elastic element energy engineering equation equilibrium excavation extensometer extraction factor factor of safety failure fault ﬁeld stress ﬁll ﬁnite ﬁrst ﬂow fracture friction geomechanical geometry given hangingwall hole horizontal illustrated in Figure induced initial joint layout load longwall longwall mining magnitude measured medium mining methods normal stress orebody orientation parameters peak strength pillar plane of weakness pressure principal stress problem proﬁle ratio reﬂected rock mass rock material rock mechanics rockburst roof S-wave seismic shear strength shear stress shotcrete shown in Figure signiﬁcant specimen stability stope strain stress components stress distribution stress ﬁeld structure subsidence sufﬁcient support and reinforcement surface tensile tensile stress tests undercut underground uniaxial vertical wave