**Preface XI**


Preface

Engineering of dams and their auxiliary structures involves a wide range of processes rang‐ ing from planning to operation stages to providing electricity generation, water supply, flood control, and some other services. In other words, it should include not only the con‐ struction, but also interdisciplinary studies to ensure that the dam can be used economically for a long time. In addition, dam safety is a very important issue and their construction

Dam engineering assists in selecting the appropriate dam location, taking into account the hydrological balance, geotechnical conditions, and economic and environmental impacts that may occur during the operation stage. For this purpose, various computer programs are used to analyze water and ground samples and to investigate potential ground motion problems. In structural and hydraulic design analysis, the behavior of soil and rock fill is evaluated under separate loading conditions. The risk of the dam is assessed against the ground movements associated with the earthquake by means of seismic analysis. It includes material tests with advanced devices for control of soil, rock, and concrete materials to be used during the construction stage, measurement, and observation processes during the construction stage and preparation of an emergency action plan for the operation stage.

This book presents recent research in the different fields of dam engineering and consists of five chapters. Each of these chapters contain valuable study on specified areas of dam engi‐ neering. The first chapter involves a study that was performed on constructing high rockfill dams on thick overburden layers, based on Chinese practices. The second chapter presents the results of an investigation performed on seismic cracks in an earth dam by centrifugal loading test, based on Japanese dams. The third chapter deals with the processes of a singlephase three-dimensional CFD model of hydrodynamics in a dam reservoir in Poland. In the fourth chapter, large scale modeling of a dam break is discussed using actual projects in Kyrgyzstan. The fifth chapter focuses on the influence of geological structures on dam be‐

I hope that this book provides an opportunity for readers working in the field of dam issues

**Prof. Dr. Hasan Tosun** Osmangazi University Eskisehir, Turkey

should not cause problems in terms of public safety.

havior when considering large dams in Iran.

to study recent scientific research and the latest knowledge.
