Stabilisation of an Earth Dam Using Driven Prestressed Concrete Piles

2nd Ishihara Lecture: SPT- and CPT-based relationships for the residual shear strength of liquefied soils

“…The undrained shear strength ratio of young, normally consolidated, slightly plastic silts can be about s u /σ 0 vo ¼0.22 [15] and have sensitivities in the range of 2-4, such that the remolded shear strength ratio, S ur /σ 0 vo , can be about 0.05-0.11. Remolded strength ratios in this range of values have been reported for slightly plastic silts and sandy silts by VasquezHerrera et al [32], Castro and Troncoso [4], and Finn et al [9]. These S ur /σ 0 vo values are comparable to the S r /σ 0 vo values for the loose sands, silty sands, and nonplastic sandy silts represented in Fig.…”

State-of-the-art of geotechnical earthquake engineering practice

“…It was ®rst applied to Sardis Dam in 1989 by Finn et al [47]. Post-liquefaction analysis and its application in design of remediation measures have been the subject of previous reviews [16,51].…”

“…The practice of expressing the residual strength as a fraction of the effective con®ning pressure has been used in practice on several water-retaining and tailings dams since it was used on Sardis Dam in 1989 [46,47]. For the most part, the ratio selected has been between 0.06 and 0.1.…”