Unformatted text preview: = SI = (su )UndiSIUlbed (su )remo!ded see Bowles chart (insitu notes, after Lunne & Eide, 1976) for N k from the plasticity index, I p = (LL- PL) • Schmertmann (1975), Kulhway & Mayne (1990), see Das and chart in insitu notes: tan$ = 0.1 +0.3810 9 ( ~~ ) where a' = effective overburden pressure o Vane Shear Test (VST) for direct measurement of C u o Iowa Borehole Shear Test (IBST) direct measurement of Co and cjl o Marchetti Dilatometer (DMT) for estimate of C u based on initial, lateral lift-off pressure, and cjl based on thrust and initial lateral lift-off pressure o Pressuremeter Test (PMT) for C u based on limit pressure PL and shear modulus G p-a c =s = L ho U U N p where aha = total horizontal stress at depth of test N p = 1 +lnQ. (:.iterative solution for cu) C u...
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- Fall '08
- Trigraph, Cu Educated guess, Cu Iowa Borehole Shear Test