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DELTA STATE UNIVERSITY, ABRAKA

DEPARTMENT OF GEOLOGY

FACULTY OF SCIENCE

GEOLOGY OF EMBANKMENT DAMSBY

MORRISON OMOKINIOVO SOPHIA

FOS/10/11/ 183350

ABSTRACT

Dams, which are constructed of earth and rock materials, are generally referred

to as embankment dams or fill-type dams. Embankment dams are classified into

two main categories such as earthfill dams and rockfill dams. The dam type in aproject is determined by considering various factors associated with topography

and geology of the dam site, and quality and quantity of construction materials

available. Most of catastrophic failures of embankment dams are caused by

overtopping of the reservoir water due to flooding or loss of free board. Despiteembankment dams should not be designed to withstand erosive action of water

flow over the crest, case histories reveal that inadequate capacity of spillway,

that is, insufficient estimation of the amount of flooding has often led to the

failure of the embankment due to overtopping.

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