August 2017 Chapter Meeting

Unified Design Method (aka Neutral Plane Method) for piles in liquefied soils

Speaker: Tom Farrell, Farrell Design Build

When: AugustĀ 24, 2017 | 6 PM

Where: Kleinfelder, 2882 Prospect Park Dr. Suite 200, Rancho Cordova, CA 95670

Traditional design of piles in liquefied soils has typically used downdrag forces to account for the effect of liquefaction on piles. However, recent research by Fellenius and others has indicated that downdrag may be more appropriately accounted for using a neutral plane methodology (Unified Design Method). Research indicates that this methodology may more appropriately represent actual in-situ conditions impacting piles following the onset of liquefaction, and can provide more realistic and less conservative designs. Farrell will present a brief overview of the methodology followed by an in depth look at the details and advantages of the analysis approach.

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