Abstract:
Ramma dam is a newly built small dam located near the new Islamabad airport to harvest the
rain water for the needs of airport and the surroundings. Recently built, it is failing to serve its
purpose as there is excessive seepage observed downstream. The dam design included a key
because of a layer of gravel beneath the top soils which is suspected either to fail in stopping
seepage due to its inadequate design or not have been built altogether. To find out the problem
and ascertain certain possible scenarios a physical modeling of different possible cases along
with its software based analysis were carried out. The research involved the study of the
geological and geotechnical conditions of the site and also to review the structural condition of
the dam. The research was based on field tests and lab tests. Seepage analysis was carried out in
a seepage tank and also using Rocscience SLIDE software.
The objective of this research is to identify the problem by comparing the results of the
numerical analysis of steady state seepage by the help of SLIDE with the results obtained from
the observed effects of the seepage in a seepage tank
