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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: General 2: Structural Analysis and Design

A simplified model for large diameter monopile foundation of wind tower in tidal homogeneous clay

< Table of Contents for General 2: Structural Analysis and Design
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: General 2: Structural Analysis and Design
  • Title: A simplified model for large diameter monopile foundation of wind tower in tidal homogeneous clay
  • Author(s): Renle MA , Mingyi ZHANG, Shuiying HUANG
  • Keywords: Soil-pile interaction, large bending moment, lateral soil resistance, homogeneous clay, wind tower
Abstract
The soil-pile interaction of the monopile foundation of wind tower in tidal clay behaves as rigid pile, which cannot be explained well by some existing models used for shallow foundations or flexible monopile. Also it is time-consuming to conduct finite element method to analyze the soil-pile interaction of monopile foundation of wind tower. Considering these limits, a simplified model, based on Winkler elastic foundation beam theory, adopting “c value” method as coefficient of soil reaction is proposed in this paper. The theoretical results from this simplified model agree well with the finite element results of the homogenous clay soil-pile interaction under large bending moment. Further, methods to check the strength and displacement of monopiles are also developed and the economic benefit of the project which adapts the soil treatment around foundation has been proved.

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