2010 Volume 25 Pages 247-254
As per the landfill constructed in the sea, the unimproved subground consolidates as the filling the waste proceeds. This causes to differential settlement between the shore bank and subgroud and leads that the barrier sheet is forced to cause tensile strain and tensile stress within the sheet. In this paper, the authors conducted the large tests that modeled the barrier system subjected to differential settlement, using soil tank made of concrete and water-bag which can simulate the consolidation behavior of soft ground by drawing the water from water bag. Two types of sheets of which rigidity are different, LLDPE and PVC, were used. As a result, it is found that the tensile strain breaks out in bell-shape distribution having the maximum tensile strain at the boundary of stable part and the subsiding part.
