The purpose of this book is to bridge the gap between the traditional Geomechanics and Numerical Geotechnical Modelling with applications in science and practice. Geomechanics is rarely taught within ...the rigorous context of Continuum Mechanics and Thermodynamics, while when it comes to Numerical Modelling, commercially available finite elements or finite differences software utilize constitutive relationships within the rigorous framework. As a result, young scientists and engineers have to learn the challenging subject of constitutive modelling from a program manual and often end up with using unrealistic models which violate the Laws of Thermodynamics. The book is introductory, by no means does it claim any completeness and state of the art in such a dynamically developing field as numerical and constitutive modelling of soils. The author gives basic understanding of conventional continuum mechanics approaches to constitutive modelling, which can serve as a foundation for exploring more advanced theories. A considerable effort has been invested here into the clarity and brevity of the presentation. A special feature of this book is in exploring thermomechanical consistency of all presented constitutive models in a simple and systematic manner.
Soil water content and surface runoff data for a hill country soil under pasture in the Tararua district are reported, showing significant water extraction down to at least 350 mm depth, and ...suggesting repellency-induced runoff at certain times of the year. This paper provides a soil water balance model, including a simplified version of the innovative way in which previous workers modelled repellency-induced runoff. That work provides the only other detailed analysis of the water balance of New Zealand hill country under pasture. The model presented here suggests that between 65 and 80% of rainfall contributed to available soil moisture and was evaporated by pasture. These results contrast with those of the other researchers in that their water balance model assumed a much shallower rooting depth of 150 mm, implying that hill country soils have a small moisture storage capacity and that probably less than 50% of annual rainfall replenishes root zone soil moisture.
This book is a comprehensive account of the hydrogeological procedures that should be followed when performing open pit slope stability design studies. Created as an outcome of the Large Open Pit ...(LOP) project, an international research and technology transfer project on the stability of rock slopes in open pit mines, this book expands on the hydrogeological model chapter in the LOP project's previous book Guidelines for Open Pit Slope Design (Read & Stacey, 2009; CSIRO PUBLISHING).This book offers slope design practitioners a road map that will help them decide how to investigate and treat water pressures in pit slopes. It provides guidance and essential information for mining and civil engineers, geotechnical engineers, engineering geologists and hydrogeologists involved in the investigation, design and construction of stable rock slopes.
When finding another location, redesigning a structure, or removing troublesome ground at a project site are not practical options, prevailing ground conditions must be addressed. Improving the ...ground, modifying its existing physical properties to enable effective, economic, and safe construction, to achieve appropriate engineering performance is an increasingly successful approach. This Third Edition provides a comprehensive overview of the major ground improvement techniques in use worldwide today. Written by recognized experts who bring a wealth of knowledge and experience to bear on their contributions, the chapters are fully updated with recent developments including advancements in equipment and methods since the last edition. The text provides an overview of the processes and the key geotechnical and design considerations as well as equipment needed for successful execution.
