FUNDAMENTALS OF ROCK MECHANICS. THIRD EDITION

This third edition includes greater information than the second edition, with regard to the use of numerical codes to analyse and study the changes in stress and displacement resulting from underground excavation. It also contains additional data concerning the state of stress underground, as well as a number of minor improvements to text and figures. the general situation is confusing and suggests that a clear policy statement is required. More adequate signing and mapping is required, with a readily identifiable system of lorry marking and classification. Rest and refreshment facilities should be provided throughout the network. It should be realised that lorry controls depend upon A satisfactory road network, and until sufficiently improved routes exist, a flexible attitude should be adopted to access. There should be more co-ordination to secure A higher level of back-loading. Other than size and weight, more effort needs to be directed to reducing pollution by fumes and noise.