PENGARUH KOLOM PASIR TERHADAP KONSOLIDASI TANAH LEMPUNG LUNAK
Abstract: The road weaving near Sragen city Central Java
has been daily problem in last decade. The existing of high expansive clay soil in subgrade below the road
foundation has been identified as the major cause of this problem. Sand Column
become one solution to improve the subgrade since it can ab-sorb the water from the void of clay soil and drain into the
channel. The research develops a model of Sand column in laboratorium. The box
of 1.0 m x 0.4 m x 0.4 m has been created. 15 cm diameter of sand column then
installed at the toe and samples for consolidation test are taken from various
distances from the centre of column (i.e. 16.67 cm; 33.33 cm; and 50 cm). The
result shows that the Sand Column can improve the soft clay soil in terms of
consolidation. The coefficient of consolidation increases as the compression
index drops. Consequently, the consolidation settlement can be re-duced
significantly.
Penulis: Anto Budi Listyawan,
Qunik Wiqoyah, Rena Ningsih, Marten Widhi Satriyana Ramadlan Widhi Satriyana
Kode Jurnal: jptsipildd150748
