PENGARUH PENGGUNAAN CERUCUK TERHADAP KUAT GESER TANAH LEMPUNG LUNAK

Abstract

Clay soil is a soil type which has a low bearing capacity so that it will face problems if theclay is receiving considerable expense. One alternative to improve the bearing capacity of clay soilis to provide a ditusukan cerucuk into it. This study aimed to discover how much influence cerucukuse of soft clay soil strength.The method used is by the addition of wood with a diameter polecerucuk ± 8 cm in the soft clay which then will be tested with a shear tester (Vane Shear Test) withthe length and spacing cerucuk cerucuk varied.The results after cerucuk anchored into the clay soilshowed an increase in shear strength of clay soil, compared with a shear strength values withoutcerucuk. For 60 cm long with a space cerucuk 2D, 3D, 5D, respectively 5.25%, 2.20%, 1.06%. For80 cm long with a space cerucuk 2D, 3D, 5D, respectively for 25.15%, 20.73%, 18.91%. Forcerucuk 100 cm long with a spacing of 2D, 3D, 5D, respectively for 33.80%, 31.63%, 29.93%. Withthis we can conclude that the longer the cerucuk and the closer the distance between cerucuk, themore can increase the shear strength of clay soil.