Abstract
In this paper, an earthen dam is analysed using different soil layers having different soil properties and dimensions. Normally a slope fail when the shear strength reduces from the minimum required value which keeps it stable. Internal erosion is the main cause which causes a dam to fail and it is mainly due seepage with time. A detail analysis of a predefined dam slope is performed in different layers to check the seepage variation as well as the factor of safety. Different soil layers and properties were used such that it is investigated from a fail condition to a complete stable condition. Limit equilibrium and finite element approaches are used. Correlations for factor of safety between these two approaches are also developed. These correlations and results could be used as guidelines in any dam or slope safety calculation.
Highlights
Dam studies is one of the most essential field of studies and with time, many lessons were learned from the dam failure cases
Loss to life and economy during any dam or slope failure is inversely proportional to the warning time which a dam or slope can give based on its stability
Less will be the damage to lives, property and economy and vice versa
Summary
Dam studies is one of the most essential field of studies and with time, many lessons were learned from the dam failure cases. Dam safety got much attention of people and researchers because of the floods and earthquakes which causes huge loss to human lives as well as damage public property. Loss to life and economy during any dam or slope failure is inversely proportional to the warning time which a dam or slope can give based on its stability. Less will be the damage to lives, property and economy and vice versa. It means that if the dam or slope is stable enough and have more factor of safety, it will have long life as well as in case of failure, it will give more warning time and will minimize the loss.
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