The effectiveness of mebra drain / Nasir Sayuti and Iberahim Jantan

Vertical drains are used to accelerate the rate of consolidation of saturated clays of low permeability. This is achieved by shortening the drainage path within the clay, resulting in the faster dissipation of excess pore water. The objective of this experimental project is to test the effectiveness of prefabricated vertical Mebra Drain installed in soil placed inside a model tank. The settlement of the soil sample with vertical drain under load were obtained and compared to the settlememt of the soil sample with out vertical drain calculated based on oedometer test results. The change in pore water pressure during the test were also taken. Shear Vane tests were also carried out to determine the shear strength of the soil before and after the experiment.