PARAMETER DINAMIK TANAH

Presentasi berjudul: "PARAMETER DINAMIK TANAH"— Transcript presentasi:

1 PARAMETER DINAMIK TANAH

2 KORELASI EMPIRIK DATA LABORATORIUM

3 SANDS

4 Sandy Soils Shear Modulus (Hardin&Drnevich

5 Sandy Soils sm = (1+2Ko) sv’ Ko = koefisien tekanan tanah at rest
= 1 – sin f 1 psf = kg/cm2 = kPa Shear Modulus (Hardin&Drnevich

6 Sandy Soils Shear Modulus (Hardin&Drnevich

7 Sandy Soils Damping Ratio (Hardin&Drnevich

8 Sandy Soils Damping Ratio (Hardin&Drnevich

9 Sandy Soils CHART Shear Modulus for Clean Sands (Relative Density Based)

10 Sandy Soils CHART Shear Modulus for Clean Sands (Void Ratio Based)

11 Sandy Soils CHART G/Gmax Shear Modulus

12 Sandy Soils CHART Damping Ratio for Sand

13 CLAYS

14 Clayey Soils CHART Shear Modulus

15 Parameter Dinamik CHART G/Gmax Shear Modulus

16 Clayey Soils CHART Damping Ratio

17 GRAVELLY

18 Gravelly CHART Shear Modulus

19 Gravelly CHART Damping Ratio (sama dengan Tanah pasir)

20 PEATS

21 Peats CHART Shear Modulus

22 Peats CHART Damping Ratio

23 DATA LAIN

24 Berdasarkan e dan sv’ G0 = A x F(e) x (sm)n

25 Berdasarkan e dan sv’ Jenis Tanah Sumber A F(e) n Pasir
Hardin-Richart (1963) 7000 (2.17-e)2 / (1+e) 0.5 3300 (2.97-e)2 / (1+e) Iwasaki-Tatsuoka (1978) 16600 0.4 Shibata-Soelarno (1975) 42000 (0.67-e) / (1+e) Kokusho (1980) 8400 Yu-Richart (1984) Lempung Hardin-Black (1968) 3270 0.6 Marcuson-Wahls (1972) 4500 445 (4.40-e)2 / (1+e) Kokusho (1982) 90 (7.32-e)2 / (1+e) Zen-Umehara (1978) Gravel Prange (1981) 7320 0.38 Kokusho - Esashi (1981) 13000 0.55

26 KORELASI EMPIRIK DATA LAPANGAN

27 Gmax (t/m2) atau Vs max (m/detik)
Data N-SPT No Sumber Jenis Tanah Gmax (t/m2) atau Vs max (m/detik) 1 Imai & Yoshimura (1970) Semua Gmax = 1000 N0.78 2 Ohba % Toriumi (1970) Alluvium Gmax = 1220 N0.62 3 Ohsaki & Iwasaki (1972) Gmax = 1218 N0.78 4 Hara et all (1974) Kohesif Gmax = 1580 N0.668 5 Imai (1977) Gmax = 1200 N0.888 6 Japan Standard for Highway Vs max = 100 N1/3 7 Non Kohesif Vs max = 80 N1/3

28 Rentang Nilai Vs