Sur la sensibilité à l'EAU des argillites

P. Delage; M. Mohajerani; A. M. Tang; N. Conil

Sur la sensibilité à l'EAU des argillites

Translated title of the contribution: On the water sensitivity of claystones

P. Delage
, M. Mohajerani
, A. M. Tang
, N. Conil

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Growing interest has been devoted to claystones in the framework of research about radioactive waste disposal at great depth. Claystones are weak rocks with significant sensitivity to changes in water content. Various evidences of damage induced either by stress application or by changes in water content have been observed. This paper describes some experimental evidences of damage induced in claystone during oedometer compression tests carried out on specimens of the Callovo-Oxfordian claystone coming from the deep underground research laboratory excavated by the French agency of radioactive waste management close to the city of Bure (East of France). Specimens were not completely saturated due to extraction and trimming. First evidence of damage is obtained when resaturating specimens previously brought back close to and above in-situ stress conditions: swelling is also observed, even under stress higher than the in- situ one. Enhanced swelling is also observed on saturated samples submitted to compression, the higher the stress, the higher the swelling. Swelling is interpreted by the generation of cracks and the mobilisation within them of swelling due to the hydration of the smectites included in the clay matrix. Such cracks may either be due to drying, wetting or to compression. Cracks enhance swelling, evidencing the coupling between damage and swelling, an illustration of the water sensitivity of claystones.

Translated title of the contribution	On the water sensitivity of claystones
Original language	French
Title of host publication	Problematic Materials, Environment, Water and Energy
Editors	Mike G. Winter, Peter J.L. Eldred, David G. Toll, Mike G. Winter, Derek M. Smith, Peter J.L. Eldred
Publisher	ICE Publishing
Pages	2373-2376
Number of pages	4
ISBN (Electronic)	9780727760678
Publication status	Published - 1 Jan 2015
Externally published	Yes
Event	16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 - Edinburgh, United Kingdom Duration: 13 Sept 2015 → 17 Sept 2015

Publication series

Name	Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015
Volume	5

Conference

Conference	16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015
Country/Territory	United Kingdom
City	Edinburgh
Period	13/09/15 → 17/09/15

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Cite this

Delage, P., Mohajerani, M., Tang, A. M., & Conil, N. (2015). Sur la sensibilité à l'EAU des argillites. In M. G. Winter, P. J. L. Eldred, D. G. Toll, M. G. Winter, D. M. Smith, & P. J. L. Eldred (Eds.), Problematic Materials, Environment, Water and Energy (pp. 2373-2376). (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015; Vol. 5). ICE Publishing.

Delage, P. ; Mohajerani, M. ; Tang, A. M. et al. / Sur la sensibilité à l'EAU des argillites. Problematic Materials, Environment, Water and Energy. editor / Mike G. Winter ; Peter J.L. Eldred ; David G. Toll ; Mike G. Winter ; Derek M. Smith ; Peter J.L. Eldred. ICE Publishing, 2015. pp. 2373-2376 (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015).

@inproceedings{20084fefc69043e4b7dd35ea90af661a,

title = "Sur la sensibilit{\'e} {\`a} l'EAU des argillites",

abstract = "Growing interest has been devoted to claystones in the framework of research about radioactive waste disposal at great depth. Claystones are weak rocks with significant sensitivity to changes in water content. Various evidences of damage induced either by stress application or by changes in water content have been observed. This paper describes some experimental evidences of damage induced in claystone during oedometer compression tests carried out on specimens of the Callovo-Oxfordian claystone coming from the deep underground research laboratory excavated by the French agency of radioactive waste management close to the city of Bure (East of France). Specimens were not completely saturated due to extraction and trimming. First evidence of damage is obtained when resaturating specimens previously brought back close to and above in-situ stress conditions: swelling is also observed, even under stress higher than the in- situ one. Enhanced swelling is also observed on saturated samples submitted to compression, the higher the stress, the higher the swelling. Swelling is interpreted by the generation of cracks and the mobilisation within them of swelling due to the hydration of the smectites included in the clay matrix. Such cracks may either be due to drying, wetting or to compression. Cracks enhance swelling, evidencing the coupling between damage and swelling, an illustration of the water sensitivity of claystones.",

author = "P. Delage and M. Mohajerani and Tang, \{A. M.\} and N. Conil",

note = "Publisher Copyright: {\textcopyright} The authors and ICE Publishing: All rights reserved, 2015.; 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015 ; Conference date: 13-09-2015 Through 17-09-2015",

year = "2015",

month = jan,

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language = "Fran{\c c}ais",

series = "Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015",

publisher = "ICE Publishing",

pages = "2373--2376",

editor = "Winter, \{Mike G.\} and Eldred, \{Peter J.L.\} and Toll, \{David G.\} and Winter, \{Mike G.\} and Smith, \{Derek M.\} and Eldred, \{Peter J.L.\}",

booktitle = "Problematic Materials, Environment, Water and Energy",

}

Delage, P, Mohajerani, M, Tang, AM & Conil, N 2015, Sur la sensibilité à l'EAU des argillites. in MG Winter, PJL Eldred, DG Toll, MG Winter, DM Smith & PJL Eldred (eds), Problematic Materials, Environment, Water and Energy. Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, vol. 5, ICE Publishing, pp. 2373-2376, 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, Edinburgh, United Kingdom, 13/09/15.

Sur la sensibilité à l'EAU des argillites. / Delage, P.; Mohajerani, M.; Tang, A. M. et al.
Problematic Materials, Environment, Water and Energy. ed. / Mike G. Winter; Peter J.L. Eldred; David G. Toll; Mike G. Winter; Derek M. Smith; Peter J.L. Eldred. ICE Publishing, 2015. p. 2373-2376 (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015; Vol. 5).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Sur la sensibilité à l'EAU des argillites

AU - Delage, P.

AU - Mohajerani, M.

AU - Tang, A. M.

AU - Conil, N.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Growing interest has been devoted to claystones in the framework of research about radioactive waste disposal at great depth. Claystones are weak rocks with significant sensitivity to changes in water content. Various evidences of damage induced either by stress application or by changes in water content have been observed. This paper describes some experimental evidences of damage induced in claystone during oedometer compression tests carried out on specimens of the Callovo-Oxfordian claystone coming from the deep underground research laboratory excavated by the French agency of radioactive waste management close to the city of Bure (East of France). Specimens were not completely saturated due to extraction and trimming. First evidence of damage is obtained when resaturating specimens previously brought back close to and above in-situ stress conditions: swelling is also observed, even under stress higher than the in- situ one. Enhanced swelling is also observed on saturated samples submitted to compression, the higher the stress, the higher the swelling. Swelling is interpreted by the generation of cracks and the mobilisation within them of swelling due to the hydration of the smectites included in the clay matrix. Such cracks may either be due to drying, wetting or to compression. Cracks enhance swelling, evidencing the coupling between damage and swelling, an illustration of the water sensitivity of claystones.

AB - Growing interest has been devoted to claystones in the framework of research about radioactive waste disposal at great depth. Claystones are weak rocks with significant sensitivity to changes in water content. Various evidences of damage induced either by stress application or by changes in water content have been observed. This paper describes some experimental evidences of damage induced in claystone during oedometer compression tests carried out on specimens of the Callovo-Oxfordian claystone coming from the deep underground research laboratory excavated by the French agency of radioactive waste management close to the city of Bure (East of France). Specimens were not completely saturated due to extraction and trimming. First evidence of damage is obtained when resaturating specimens previously brought back close to and above in-situ stress conditions: swelling is also observed, even under stress higher than the in- situ one. Enhanced swelling is also observed on saturated samples submitted to compression, the higher the stress, the higher the swelling. Swelling is interpreted by the generation of cracks and the mobilisation within them of swelling due to the hydration of the smectites included in the clay matrix. Such cracks may either be due to drying, wetting or to compression. Cracks enhance swelling, evidencing the coupling between damage and swelling, an illustration of the water sensitivity of claystones.

UR - https://www.scopus.com/pages/publications/84964650314

M3 - Contribution à une conférence

AN - SCOPUS:84964650314

T3 - Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015

SP - 2373

EP - 2376

BT - Problematic Materials, Environment, Water and Energy

A2 - Winter, Mike G.

A2 - Eldred, Peter J.L.

A2 - Toll, David G.

A2 - Winter, Mike G.

A2 - Smith, Derek M.

A2 - Eldred, Peter J.L.

PB - ICE Publishing

T2 - 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015

Y2 - 13 September 2015 through 17 September 2015

ER -

Delage P, Mohajerani M, Tang AM, Conil N. Sur la sensibilité à l'EAU des argillites. In Winter MG, Eldred PJL, Toll DG, Winter MG, Smith DM, Eldred PJL, editors, Problematic Materials, Environment, Water and Energy. ICE Publishing. 2015. p. 2373-2376. (Geotechnical Engineering for Infrastructure and Development - Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015).

Sur la sensibilité à l'EAU des argillites

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