Prediksi Sudut Gesek Internal Tanah Berdasarkan Sudut Dilatasi Pada Uji Geser Langsung
Abstract: Shear strength
parameters of soils are cohesion (c) and internal friction angle (). Direct
shear test is a method to determine these parameters. Data from this test are
shear stress and thickness change of soil. In practice, only the maximum shear
stress will used to determine the shear strength parameter. The major objective
of this research is to develope a formula for prediction internal friction
angle (ϕ) by dilatation angle (α). Result of this research is a prediction
formula of internal friction angle, as : α = arctan (µ + tan α)/(1- µ tan
α by µ= 0,55. Dilatation angle (α) for
this formula was determined at maximum shear stress.. Validations of ϕ
predicted by this formula have maximum error 16,76%, average error 5,59% and
standard deviation error 4,75%. Cohesion (c) values can calculated by
Mohr-Coloumb Formula.
Penulis: Sumiyanto, Gandjar
Pamudji, Hery Awan Susanto
Kode Jurnal: jptindustridd050043
