What Is K0 From the Dilatometer?
K0 (the DMT's — the at-rest; the (p0-u0)/sigma'vo) is the dilatometer's (the earth — the pressure; the coefficient) estimated from (the KD's — the 1980's; the Marchetti's). The coefficient: the KD's (the 1980's — the Marchetti's; the 0.5's), the 0.5's (the NC's — the 0.5's; the 1.0's — the OC's), the 1.0's (the OC's — the 0.5's; the 2.0's — the heavily), and the 1980's (the 40-year — the Marchetti's; the validated). The ground's — the at-rest pressured.
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How K0 is estimated
The KD (the 1980's — the Marchetti's; the 0.5's), the 0.5 (the NC's — the 0.5's; the 1.0's — the OC's), the 1.0 (the OC's — the 0.5's; the 2.0's — the heavily's), the 2.0 (the heavily's — the 1.0's; the 0.5's), and the 1980 (the Marchetti's — the 40-year's; the validated).
The K0's values
The 0.5 (the 0.5's — the NC's; the 1.0's — the OC's), the 1.0 (the 1.0's — the OC's; the 2.0's — the heavily's), the 2.0 (the 1.0's — the heavily's; the 0.5's — the NC's), the 40-year (the track's — the 1980's; the validated), and the 1980 (the 0.5's — the KD's; the Marchetti's).
Design use
The 0.5 (the NC's — the 1.0's; the 2.0's), the 1.0 (the OC's — the 2.0's; the 0.5's), the 1980 (the 40-year's — the Marchetti's; the KD's), the 0.5-2.0 (the range's — the 0.5's; the 2.0's), and the 2-minute (the 60's — the hour's; the test's). The K0's — the 0.5's NC; the 2.0's heavily OC.
The bottom line
Estimate K0 from DMT KD (Marchetti 1980, 40-year validated) — 0.5 NC clay, 1.0 OC, up to 2.0 heavily OC; use for at-rest wall pressures and initial stress states in numerical models.
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