Failure Assessment of Buried Water Main Constructed In Expansive Soil Area of Addis Ababa
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Date
2017-06
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Addis Ababa University
Abstract
This project gives information for the failure distribution of water supply main which is
buried in susceptible areas of expansive soil of Addis Ababa and comparing with the area of
non-expansive soil. It is known that the water supply line has several reasons to fail.
External load exerted on the pipe, due to age, soil pressure, construction work along the
line and internal pressure are among others. However, the concern of this project is the
failure due to pressure. According to Addis Ababa Water and Sewerage Authority (AAWSA)
failure data, if there is a failure and has no reason, then the failure data has been recorded
as failure due to pressure.
Therefore, in this study an attempt was made to assess the failure data and the failure
comparison to understand the cause for failure of water main in area of Expansive soils of
Addis Ababa.
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Keywords
Buried Water, Expansive Soil, Failure Assessment