Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Reed

Improvement of Ballast Embankment Resting on Soft Clay by Reed and Asphalt Layers

Namir.K.S. AL-Saoudi; Falah.H.Rahil; Kawther.Y.H.AL-Soudany

Engineering and Technology Journal, 2011, Volume 29, Issue 15, Pages 3224-3241

The present paper investigates the possibility of using reed and /or asphalt as stabilizing materials for ballast model embankment overlaying a bed of soft soil. Four model tests were performed consisting of a model embankment 500mm base width 300mm crest width and 75mm high. The embankment was constructed on a bed of saturated soft clay 500mm thick with undrained shear strength 16 kPa. The ballast
embankment was gradually loaded up to failure by a model footing 200mm wide and 400mm long placed on the crest with continuous monitoring of the generated settlement. The use reed and/or asphalt along the interface surface between the ballast embankment and the soft soil demonstrated significant improvements in both load carrying capacity and reduction in settlement.