{"id":19500,"date":"2026-03-11T09:06:09","date_gmt":"2026-03-11T08:06:09","guid":{"rendered":"https:\/\/navier-lab.fr\/?post_type=event&#038;p=19500"},"modified":"2026-03-11T16:43:20","modified_gmt":"2026-03-11T15:43:20","slug":"seminaire-geotech-christelle-tabbiche","status":"publish","type":"event","link":"https:\/\/navier-lab.fr\/en\/agenda\/seminaire-geotech-christelle-tabbiche\/","title":{"rendered":"Geotech Young Seminar Series : Christelle Tabbiche (Navier)"},"content":{"rendered":"<section class=\"kc-elm kc-css-293585 kc_row\"><div class=\"kc-row-container  kc-container\"><div class=\"kc-wrap-columns\"><div class=\"kc-elm kc-css-64213 kc_col-sm-12 kc_column kc_col-sm-12\"><div class=\"kc-col-container\">\n<div class=\"kc-elm kc-css-621776 kc-title-wrap \">\n\n\t<h1 class=\"kc_title\">Investigating the mechanical behaviour of frozen soils by particle- and meso-scale observations<\/h1>\n<\/div>\n<div class=\"kc-elm kc-css-864146 kc_text_block\"><\/p>\n<h2><strong>Abstract:<\/strong><\/h2>\n<p style=\"text-align: justify;\">Naturally frozen soils, including permafrost and seasonally frozen soils, cover around 20% of the land surface on Earth. In recent decades, these regions have been subjected to warming, affecting the equilibrium conditions of frozen soils and causing significant ground perturbations compared to other regions. Thawing permafrost critically impacts the stability of infrastructures in inhabited regions or areas exploited for mineral and energy resources.<\/p>\n<p style=\"text-align: justify;\">This study aims to investigate the behaviour of frozen soils under mechanical loading and freezing-thawing processes through laboratory microstructural observations. The experiments were performed on sandy soils with various fine contents using different imaging techniques:<\/p>\n<ol>\n<li>\n<p align=\"justify\"><span lang=\"en-GB\">Conducting frost heave tests combined with Magnetic Resonance Imaging technique (MRI).<\/span><\/p>\n<\/li>\n<li>\n<p align=\"justify\"><span lang=\"en-GB\">Examining microstructural changes at the particle scale during freezing and thawing processes under triaxial conditions by conducting a series of thermal triaxial tests at Synchrotron Soleil.<\/span><\/p>\n<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">\n<style type=\"text\/css\">p { direction: ltr; widows: 2; orphans: 2; text-align: left; margin-bottom: 2.47mm; line-height: 115%; background: transparent }<\/style>\n<p align=\"justify\" style=\"line-height: 115%; margin-bottom: 2.82mm\">\n<span lang=\"en-GB\">In this seminar, I will present the work<br \/>\naccomplished for these tasks and some of the results obtained.<\/span><\/p>\n<\/p>\n<p style=\"text-align: justify;\">This PhD thesis is part of REFROZEN project, a collaboration between Ecole nationale des ponts et chauss\u00e9es (France) and RWTH Aachen University (Germany).<\/p>\n<p>\n<\/div><div class=\"kc-elm kc-css-478100 kc_text_block\"><\/p>\n<h2><strong>Short bio:<\/strong><\/h2>\n<p align=\"justify\"><span lang=\"en-GB\">I am a civil engineer and completed a research master&#8217;s degree (MSROE) at \u00c9cole Nationale des Ponts et Chauss\u00e9es. I am currently pursuing a PhD thesis at the Navier Laboratory in collaboration with three teams: G\u00e9otechnique, RMP, and Multi-\u00c9chelle. My research focuses on frozen soils, and since the start of my PhD, I have developed a strong interest in this field.<\/span><\/p>\n<p>\n<\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>Investigating the mechanical behavior of frozen soils by particle- and meso-scale observations<\/p>\n","protected":false},"author":158,"featured_media":0,"template":"","class_list":["post-19500","event","type-event","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/event\/19500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/event"}],"about":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/types\/event"}],"author":[{"embeddable":true,"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/users\/158"}],"wp:attachment":[{"href":"https:\/\/navier-lab.fr\/en\/wp-json\/wp\/v2\/media?parent=19500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}