Validation and Application of the Embedded Pile Row Feature in PLAXIS 2D


Application PLAXIS 2D
Version PLAXIS 2D
Original Author J. Sluis, F. Besseling, P. Stuurwold, A. Lengkeek
Date created 11 June 2014
Date modified 13 June 2017

The modelling of piles in a 2D finite element model brings limitations because pile-soil interaction is a strongly 3D phenomenon. Pile-soil interaction is difficult to model and traditional methods in which pile rows are modelled either as plates or as node-to-node anchors have clear drawbacks. The embedded pile row has been developed to model a row of piles in the out-of-plane direction, which is available in PLAXIS 2D 2012. It is supposed to result in a more realistic pile-soil interaction behaviour compared to other methods. This article discusses the principle and validation of the feature, which has been performed in a MSc thesis study (TU Delft). Recently, the embedded pile row feature has been applied by Witteveen+Bos in the design of a quay wall for the General Cargo terminal of the New Baku International Sea Trade Port.

Update from PLAXIS:
In the article, the following suggestion was made:

 

"The implementation of a plastic slider in lateral direction is however strongly recommended for future updates of PLAXIS 2D, as it will significantly extend the range of practical applications of the embedded pile row feature in PLAXIS 2D".

This option for a lateral slider was introduced in PLAXIS 2D 2015 as a maximum allowable Lateral skin resistance.

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