Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity

Benjamin Cerfontaine; Frédéric Collin; Robert Charlier

Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity

Benjamin Cerfontaine
, Frédéric Collin
, Robert Charlier

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

Abstract

The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper presents the formulation of a new constitutive law able to represent the inherently cyclic behaviour of rocks at low confinement. The main features of the behaviour evidenced by experiments in the literature depict a progressive degradation and deformation of the material with the number of cycles. A constitutive law based on a boundary surface model is developed. It represents the brittle failure of the material as well as its progressive degradation. It also encompasses a fatigue resistance under which no degradation of the material holds. Parameters are calibrated with respect to laboratory experiments from the literature. A parametric study is carried out to highlight the role of different parameters.

Original language	English
Title of host publication	Energy Geotechnics
Subtitle of host publication	Proceedings of the 1st International Conference on Energy Geotchnics (ECEGT 2016)
Editors	Frank Wuttke, Sebastian Bauer, Marcelo Sanchez
Publisher	CRC Press
Pages	629-636
Number of pages	8
ISBN (Print)	9781138032996
Publication status	Published - 8 Aug 2016

Keywords

Rock mechanics
Cyclic Loading
Fatigue
Pumped storage hydroelectricity

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http://hdl.handle.net/2268/213772

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Cerfontaine, B., Collin, F., & Charlier, R. (2016). Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity. In F. Wuttke, S. Bauer, & M. Sanchez (Eds.), Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotchnics (ECEGT 2016) (pp. 629-636). CRC Press. http://hdl.handle.net/2268/213772

Cerfontaine, Benjamin ; Collin, Frédéric ; Charlier, Robert. / Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity. Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotchnics (ECEGT 2016). editor / Frank Wuttke ; Sebastian Bauer ; Marcelo Sanchez. CRC Press, 2016. pp. 629-636

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title = "Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity",

abstract = "The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper presents the formulation of a new constitutive law able to represent the inherently cyclic behaviour of rocks at low confinement. The main features of the behaviour evidenced by experiments in the literature depict a progressive degradation and deformation of the material with the number of cycles. A constitutive law based on a boundary surface model is developed. It represents the brittle failure of the material as well as its progressive degradation. It also encompasses a fatigue resistance under which no degradation of the material holds. Parameters are calibrated with respect to laboratory experiments from the literature. A parametric study is carried out to highlight the role of different parameters.",

keywords = "Rock mechanics, Cyclic Loading, Fatigue, Pumped storage hydroelectricity",

author = "Benjamin Cerfontaine and Fr{\'e}d{\'e}ric Collin and Robert Charlier",

year = "2016",

month = aug,

day = "8",

language = "English",

isbn = "9781138032996",

pages = "629--636",

editor = "Frank Wuttke and Sebastian Bauer and Marcelo Sanchez",

booktitle = "Energy Geotechnics",

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}

Cerfontaine, B, Collin, F & Charlier, R 2016, Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity. in F Wuttke, S Bauer & M Sanchez (eds), Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotchnics (ECEGT 2016). CRC Press, pp. 629-636. <http://hdl.handle.net/2268/213772>

Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity. / Cerfontaine, Benjamin; Collin, Frédéric; Charlier, Robert.
Energy Geotechnics: Proceedings of the 1st International Conference on Energy Geotchnics (ECEGT 2016). ed. / Frank Wuttke; Sebastian Bauer; Marcelo Sanchez. CRC Press, 2016. p. 629-636.

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

TY - GEN

T1 - Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity

AU - Cerfontaine, Benjamin

AU - Collin, Frédéric

AU - Charlier, Robert

PY - 2016/8/8

Y1 - 2016/8/8

N2 - The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper presents the formulation of a new constitutive law able to represent the inherently cyclic behaviour of rocks at low confinement. The main features of the behaviour evidenced by experiments in the literature depict a progressive degradation and deformation of the material with the number of cycles. A constitutive law based on a boundary surface model is developed. It represents the brittle failure of the material as well as its progressive degradation. It also encompasses a fatigue resistance under which no degradation of the material holds. Parameters are calibrated with respect to laboratory experiments from the literature. A parametric study is carried out to highlight the role of different parameters.

AB - The use of old mines as a reservoir in the context of pumped storage hydroelectricity rises the question of their stability especially upon cyclic loading due to filling and emptying the mines. This paper presents the formulation of a new constitutive law able to represent the inherently cyclic behaviour of rocks at low confinement. The main features of the behaviour evidenced by experiments in the literature depict a progressive degradation and deformation of the material with the number of cycles. A constitutive law based on a boundary surface model is developed. It represents the brittle failure of the material as well as its progressive degradation. It also encompasses a fatigue resistance under which no degradation of the material holds. Parameters are calibrated with respect to laboratory experiments from the literature. A parametric study is carried out to highlight the role of different parameters.

KW - Rock mechanics

KW - Cyclic Loading

KW - Fatigue

KW - Pumped storage hydroelectricity

M3 - Conference contribution

SN - 9781138032996

SP - 629

EP - 636

BT - Energy Geotechnics

A2 - Wuttke, Frank

A2 - Bauer, Sebastian

A2 - Sanchez, Marcelo

PB - CRC Press

ER -

Numerical modelling of the cyclic behaviour of rock material in the context of underground pumped storage hydroelectricity

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Keywords

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