Liquefaction remediation in vertical drains with varying penetration depths. / Brennan, A. J.; Madabhushi, S. P. G.
In: Soil Dynamics and Earthquake Engineering, Vol. 26, No. 5, 2006, p. 469-475.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Liquefaction remediation in vertical drains with varying penetration depths
A1 - Brennan,A. J.
A1 - Madabhushi,S. P. G.
AU - Brennan,A. J.
AU - Madabhushi,S. P. G.
PY - 2006
Y1 - 2006
N2 - Vertical drains have been used as remediation against earthquake-induced soil liquefaction for many years. These are seen to begin fluid dissipation from deeper deposits first. Drains are not necessarily installed to the full depth of the liquefiable layer. To determine the effect of this on the efficiency of drain systems, centrifuge test results are presented. It is seen that not installing all drains through the full liquefiable depth significantly retards their performance, due to the dominance of vertical dissipation. It will be shown that a standard design chart may over-predict an improvement in drain performance.
AB - Vertical drains have been used as remediation against earthquake-induced soil liquefaction for many years. These are seen to begin fluid dissipation from deeper deposits first. Drains are not necessarily installed to the full depth of the liquefiable layer. To determine the effect of this on the efficiency of drain systems, centrifuge test results are presented. It is seen that not installing all drains through the full liquefiable depth significantly retards their performance, due to the dominance of vertical dissipation. It will be shown that a standard design chart may over-predict an improvement in drain performance.
KW - Liquefaction
KW - Liquefaction remediation
KW - Vertical drains
KW - Centrifuge
U2 - 10.1016/j.soildyn.2005.10.001
DO - 10.1016/j.soildyn.2005.10.001
M1 - Article
JO - Soil Dynamics and Earthquake Engineering
JF - Soil Dynamics and Earthquake Engineering
SN - 0267-7261
IS - 5
VL - 26
SP - 469
EP - 475
ER -