Geotechnical problems related with loess deposits in Northern France. - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2005

Geotechnical problems related with loess deposits in Northern France.

Pierre Antoine

Résumé

Special problems were encountered in some areas in Northern France where the high speed railways (TGV Nord) crossed some loess deposits that appeared to be specially sensitive to change in water content and susceptible to collapse. Numerous sinkholes appeared along some sections of the line following wet climatic periods. After a general geological and geotechnical presentation of loess deposits and collapse susceptibility, in which some tools of the mechanics of unsaturated soils are reconsidered with special application to loess collapsibility, this paper describes the results of a geotechnical study carried out on block samples of intact loess. Collapse susceptibility is examined in the light of microstructure observation. The dependence of collapse to water content changes is examined and the validity of various existing collapse criteria is investigated.
Fichier principal
Vignette du fichier
GeoprobDelageRed.pdf (892.99 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-00261645 , version 1 (10-03-2008)

Identifiants

Citer

Pierre Delage, Yu-Jun Cui, Pierre Antoine. Geotechnical problems related with loess deposits in Northern France.. International Conference on Problematic Soils, May 2006, Famagusta, North Cyprus, Cyprus. pp.517-540. ⟨hal-00261645⟩
176 Consultations
486 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More