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Geotechnical and Geological Engineering

, Volume 36, Issue 4, pp 2305–2329 | Cite as

Thermo-hydro-mechanical Analysis of an Offshore Monopile Foundation Used for Geothermal Energy Extraction and Storage

  • Arundhuti Banerjee
  • Tanusree Chakraborty
  • Vasant Matsagar
Original paper

Abstract

A novel concept of incorporating a heat exchanger system in an offshore wind turbine-monopile foundation and its effect on the stress–strain response of pile are investigated in the present work. Thermo-mechanical analysis of the steel monopile with fluid carrying pipes is carried out using finite element method through heat flow and structural analyses. The effect of thermal loading–unloading cycle on the pile, the temperature distribution in the pile and soil, resultant pore pressure development in the soil, the axial stress and strain in the pile and the shear stresses in soil are studied. The thermal stresses and displacement of the piles are checked against the serviceability limits for the offshore structure.

Keywords

Heat exchanger pile Offshore wind turbine Pore pressure Thermal load Thermo-hydro-mechanical analysis 

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Arundhuti Banerjee
    • 1
  • Tanusree Chakraborty
    • 1
  • Vasant Matsagar
    • 1
  1. 1.Department of Civil EngineeringIndian Institute of Technology (IIT) DelhiHauz Khas, New DelhiIndia

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