eprintid: 1951
rev_number: 14
eprint_status: archive
userid: 9
dir: disk0/00/00/19/51
datestamp: 2017-06-27 10:37:32
lastmod: 2017-09-19 10:33:08
status_changed: 2017-06-27 10:37:32
type: book_section
metadata_visibility: show
creators_name: Laouafa, F.
creators_name: Contrucci, Isabelle
creators_name: Daupley, Xavier
corp_creators: INERIS - Institut National de l'Environnement Industriel et des Risques
corp_creators: INERIS - Institut National de l'Environnement Industriel et des Risques
corp_creators: INERIS - Institut National de l'Environnement Industriel et des Risques
title: In-situ large monitoring and numerical modeling of the loss of stability of salt cavity
subjects: MP2
subjects: O
subjects: RF4
subjects: SMU
divisions: IP15
full_text_status: none
keywords: cavite, dissolution, modelisaltion
abstract: During several years, a fulfilled brine salt cavity was monitored in The North-East of France (Lorraine) in order to analyze times evolutions of several variables (microseismicity, subsidence) using geophysical and geomechanical monitoring. In addition, continuous and mixed (discontinuous-continuous) non-linear numerical computations were performed in order to predict the mechanical collapse conditions of the cavity. At given cavity sizes, the collapse appeared mainly controlled by the value of the brine pressure in the cavity and by the strength of a stiff dolomite rock layer located at the top of the cavern. The control of the collapse was performed by decreasing smoothly the brine pressure up to the failure (collapse of the cavern and of the overburden rock layers). Comparison between experimental data and numerical computations allows describing quite accurately the time evolution of failure. The mechanisms of failure are analyzed and some physical interpretation are given concerning this collapse
date: 2012
date_type: published
publisher: CRC Press/Balkema
pagerange: 171-178
id_number: doi:10.1201/b12041-24
isbn: 978-0-203-10076-9
book_title: Mechanical Behaviour of Salt VII
editors_name: Bérest, Pierre
editors_name: Ghoreychi, Mehdi
editors_name: Hadj-Hassen, Faouzi
editors_name: Tijani, Michel
official_url: http://doi.org/10.1201/b12041-24
access_IS-EPOS: limited
owner: Publisher
citation:   Laouafa, F. and Contrucci, Isabelle and Daupley, Xavier  (2012) In-situ large monitoring and numerical modeling of the loss of stability of salt cavity.   In:  Mechanical Behaviour of Salt VII.   CRC Press/Balkema, pp. 171-178.  ISBN 978-0-203-10076-9