A study on control of contaminant transport through the soil using equal double sheet piles

Control of groundwater moving using sheet pile is very important for minimizing the potential of groundwater contamination. Present study aims to control the contaminant transport through soil by using equal double sheet piles. Physical sand box model was implemented symmetrically in order to examine the effect of depths of double sheet piles, distance between them and distance of contaminant upstream the sheet piles. The regional contaminated porous field is studied numerically using simulation software MODEFLOW and M3DMS. Average absolute difference time between experimental and numerical results that contamination moved from upstream to point under the second sheet pile and arrives the surface of soil at downstream, equals 9.31% and 6.11% respectively. Design charts are presented for quantifying the effects of equal double sheet piles on the hydraulic control of the groundwater flow field. From the charts, the double sheet piles depth can be selected according to the needed condition.