SEEPAGE UNDERNEATH THE FLOOR OF PUMPING STATION THROUGH IMPERFECT BED LINING

Document Type : Original Article

Author

Water and Water Structure Engineering Dept., Associate professor, Dept. of Water and Water Structure Engineering, Zagazig University, Zagazig, Egypt.

Abstract

The problem of seepage under the floor of a pumping station is investigated here.
The upstream and the downstream cracks assumed to occur between lining and the
ends of the floor, i.e., L1= 0 and L2= 0. The floor is provided with two sheet piles of
different depths at the two ends and it has a vertical rise. The pumping station is
resting on a permeable layer of finite depth. Effects of the different sheet pile depths
and location of the vertical rise on the piezometric head underneath the floor, exit
gradients and seepage discharge have been analyzed using Finite Element Program
and graphically represented in dimensionless charts.

Keywords