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Hydraulic Processes on Alluvial Fans

Series: Developments in Water Science Volume: 31

By: RH French


Hardback | Dec 1987 | #84599 | ISBN: 0444427813
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NHBS Price: £112.00 $144/€123 approx

About this book

Alluvial fans are among the most prominent landscape features in the American Southwest and throughout the semi-arid and arid regions of the world. The importance of developing a qualitative and quantitative understanding of the hydraulic processes which formed, and which continue to modify, these features derives from their rapid and significant development over the past four decades. As unplanned urban sprawl has moved from valley floors onto alluvial fans, the serious damage incurred from infrequent flow events has dramatically increased. This book presents a concise, coherent discussion of our current and rapidly expanding knowledge of hydraulic processes on alluvial fans. It addresses the subject from a multidisciplinary viewpoint, acquainting the geologist with engineering principles, and the civil engineer and planner with geological principles pertinent to the analysis of hydraulic processes on alluvial fans. The book thus provides much of interest to geologists, civil engineers and planners involved in floodplain management and drainage design in arid and semi-arid regions.


1. Introduction. Scope and importance of problem. Initial concepts and definitions. Conclusion. 2. Basic Geologic Concepts. Introduction. Competing geologic doctrines. Alluvial fan systems: general. Conditions favoring the development and modification of alluvial fans. Fanhead entrenchment. Conditions favorable to the formation of debris and mud-flows. Characteristics of flows in ephemeral streams. 3. Basic Principles of Open Channel Hydraulics. Introduction. Specific energy. Uniform/normal flow. Alluvial channel stability. Debris flow mechanics. Hydraulic/physical models. Conclusion. 4. Models of Hydraulic Processes on Alluvial Fans. Introduction. Numerical model, geologic time scale: Price (1972, 1974). Physical model, geologic time scale: Hooke (1965, 1967, 1968). Numerical/physical model, engineering time scale: Anon.(1981a). Numerical models of debris flows in channels: DeLeon and Jeppson (1982) and Jeppson and Rodriguez (1983). Conclusion. 5. Methods of Flood Hazard Assessment on Alluvial Fans. Introduction. FEMA methodology for alluvial fan studies. Alternative methodology for alluvial fan studies. Proposed modification of the FEMA methodology. Conclusion. 6. Conclusion. Introduction. Socio-economic and institutional problems. Research needs. Glossary. Author Index. Index.

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