About the book
Dams are increasingly constructed all over the world for flood controlling, irrigation, power generation, environmental protection, recreation, etc. Due to their significant benefits for sustainable development and the unacceptable consequences in the case of dam breach, huge efforts are made during design, construction and maintenance to ensure their safety and normal operation. Design of a dam structure at a specific site depends not only on the topographical, geological and environmental conditions but also on the materials economically available at this site. Therefore, an in-depth understanding of the properties of dam materials to be used is a prerequisite for a successful design and satisfactory construction. Design of dams, nowadays, benefits a lot from rapidly developing experimental, analytical and numerical methods, which are increasingly used in studying the deformation, stability and seepage behavior of the concerned structures. Seismic responses and damage mechanism also deserve special attention for dams constructed in high earthquake intensity regions, because of the great threat posed to the water retaining structures as evidenced from previous cases. Another increasing threat to dams is the unexpected flood, extremely for embankment dams because this type of dam is very vulnerable to overtopping. For any dam that is considered inadequate to sustain the static and dynamic loads or to discharge the newly expected flood, maintenance and rehabilitation measures should be implemented. In summary, safety of a dam is not fulfilled once and for all. This is a dynamic process span over the whole lifetime of the dam. Dam engineers have to deal with different safety issues during different phases using reliable theories and techniques. This book intends to provide the reader with a comprehensive overview of the current state-of-the-art or state-of-the-practice in the above mentioned aspects in dam engineering.