실트함유율에 따른 낙동강 모래의 함수특성곡선

In this paper, we carried out the unsaturated soil-water characteristics curve(SWCC) test of Nak-Dong River sand respectively with the relative density of 40%, 60%, 80% and the range of silt content 0~30%. As a result, the more the sand has silt in the same relative density and the more the sand densify in the same silt content, SWCC by increasing volume water content increase. Also the results by analyzed the coefficient α, n, m that are the coefficient of Fredlind & Xing(1994)'s empirical formula of SWCC, coefficients α, n decrease with respect to the densify of sand and increase with respect to the addition of silt content, coefficient m increase with respect to the densify of sand and the addition of silt content.