Design and verification of the foundations of the Dahej LNG tanks

Marti Rodriguez, Joaquin and Martinez Cutillas, Francisco J. and Kanekura, T and Takuwa, D. and Singh, R. (2008). Design and verification of the foundations of the Dahej LNG tanks. In: "12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG)", 01/10/2008-06/10/2008, Goa, India.

Description

Title: Design and verification of the foundations of the Dahej LNG tanks
Author/s:
  • Marti Rodriguez, Joaquin
  • Martinez Cutillas, Francisco J.
  • Kanekura, T
  • Takuwa, D.
  • Singh, R.
Item Type: Presentation at Congress or Conference (Article)
Event Title: 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG)
Event Dates: 01/10/2008-06/10/2008
Event Location: Goa, India
Title of Book: CD-Rom Geomechanics in the Emerging Social & Technological Age: Proceedings of 12th International Conference of International Association for Computer Methods and Advances in Geomechanics (IACMAG)
Date: 2008
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Mecánica de Medios Continuos y Teoría de Estructuras
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The first two tanks for storage of liquefied natural gas (LNG) at Dahej in Gujarat are already in operation, with the next two currently under construction. Each tank, capable for 148,000 m3, rests on 578 concrete piles. The more demanding loads on the foundation arise from the hydraulic test and the safe shutdown earthquake (SSE). The former consists in filling the tank with water to achieve 25% greater weight than in operation; the latter, based on the code versions prevailing at the time, corresponds to an earthquake with a return period of 10,000 years. For axial loads, the pile capacity calculations are straight-forward and their results were verified in full scale tests as per IS 2911. For horizontal loads, however, test results cannot be used directly because the pileheads are rigidly fixed to the slab but are free to rotate in a test pile. The approach followed consisted in constructing p-y curves to describe pile-soil interaction at each depth, as well as moment-curvature relations to characterise pile bending; this allowed predicting the response under both tests and earthquakes. The experimental verification of the former was used to confirm the latter, which normally cannot be tested directly.

More information

Item ID: 4050
DC Identifier: http://oa.upm.es/4050/
OAI Identifier: oai:oa.upm.es:4050
Official URL: http://www.iacmag.org/
Deposited by: Memoria Investigacion
Deposited on: 03 Sep 2010 08:37
Last Modified: 20 Apr 2016 13:25
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