The safe and economical construction of tunnels, mines, and other subterranean works depends on the correct choice of support systems to ensure that the excavations are stable. These support systems should be matched to the characterstics of the rock mass and the excavation techniques adopted. Establishing the support requirements, designing support systems and installing these correctly are essential elements in safe underground construction. This is a comprehensive and practical work which also gives access to user-friendly computer programmes which enable the investigation and design of support techniques. Details on how to obtain this software are also included in the book.
Foreword; Preface; * An overview of rock support design; * Assessing acceptable risks in design; * Evaluation of engineering geological data; * Rock mass classification; * Shear strength of discontinuities; * Analysis of structurally controlled instability; * In situ and induced stresses; * Strength of rock and rock masses; * Support design for overstressed rock; * Progressive spalling in massive brittle rock; * Typical support applications; * Rockbolts and dowels; * Cablebolt reinforcement; * The Stability Graph method; * Shotcrete support; References; Software information; Author index, Subject index.