Rock Slope Engineering Third Edition 3rd Edition Evert Hoek by Evert Hoek, Jonathan D. Bray 9780203974339, 0203974336 instant download after payment.

In designing the very large excavated slopes which are becoming increasingly common in both mining and civil engineering projects, the engineer is faced with two conflicting requirements. On the one hand, vast sums of money can be saved by steepening the slopes, thereby reducing the amount of material to be excavated. On the other hand, loss of life and serious damage to property can result from failures induced by excessive steepening of a particular slope. How does the engineer achieve an optimum design—a compromise between a slope which is steep enough to be economically acceptable and one which is flat enough to be safe?
Because the rock mass behind each slope is unique, there are no standard recipes or routine solutions which are guaranteed to produce the right answer each time they are applied. A practical solution is built up from the basic geological data, rock strength information, groundwater observations and a good measure of engineering common sense. These ingredients are blended in different proportions for each case and the only assistance available is a collection of tools and techniques which will help the engineer to collect the information quickly and efficiently and to process it in an orderly manner.
This book sets out to describe these tools and techniques and to illustrate their application to practical problems by means of a number of worked examples. As far as possible, the text has been kept free of mathematics and a number of simple design charts and graphical methods have been included to enable the non-specialist engineer rapidly to obtain approximate answers to his problem. These approximate answers are frequently adequate but there will be situations in which the engineer will wish to call upon a geotechnical specialist for assistance. Having attempted to solve the problem for himself, the engineer will be in a strong position to communicate his needs to the geotechnical specialist and to work out, with the specialist, the most practical engineering solution.
The authors make no apology for the fact that the book has been printed by offset lithography from typescript and that some of the drawings and photographs are not perfect. The intention has been to produce an engineering handbook at minimum cost rather than a fine example of the printer’s art. Wide margins have been provided for the reader’s notes and the authors hope that each copy will wear out from hard use rather than decay in decorative inactivity.
Rock Slope Engineering was extensively revised in 1977 and, apart from the change in size, this third edition contains relatively few changes. The most significant changes are:
The introduction of a recently published non-linear failure criterion on pages 106 to 113,
The introduction of a revised section describing Bishop’s and Janbu’s methods of slices for the analysis of circular and non-circular failure of slopes and the application of Bishop’s method in the case of a rock mass exhibiting non-linear failure characteristics. This revised section appears on pages 247 to 253.
The replacement of Appendix 1, which dealt with wedge failure in rock slopes, by a new appendix dealing with the statistical analysis of laboratory strength test data. The decision to abandon the original version of the wedge analysis was taken because it has been published in full elsewhere* and because the availability of programmable calculators and desk-top computers has made the wedge analysis presented in Appendix 2 much more useful.
The introduction of an Index.
The reader may be interested to know that this book has now appeared in Turkish and in Japanese translations and additional translations in Spanish, Russian and Chinese are currently being prepared.
Contents:
Economic and planning considerations
Basic mechanics of slope failure
Graphical presentation of geological data
Geological data collection
Shear strength of rock
Groundwater flow; permeability and pressure
Plane failure
Wedge failure
Circular failure
Toppling failure
Blasting
Miscellaneous topics
Appendixes:
Analysis of laboratory strength test data
Wedge solution for rapid computation
Factor of safety for reinforced rock slopes
Conversion factors