Pore Pressure Diffusion in Some Rock Mechanics Experiments

被引：0

作者：

Braun, Philipp ^{[1
,2
]}

Ghabezloo, Siavash ^{[1
]}

Delage, Pierre ^{[1
]}

Sulem, Jean ^{[1
]}

Conil, Nathalie ^{[3
]}

机构：

[1] Ecole Ponts ParisTech, Lab Navier, CERMES, 6-8 Ave B Pascal, F-77455 Marne La Vallee, France

[2] Andra, 1-7 Rue Jean Monnet, F-92298 Chatenay Malabry, France

[3] Andra, Ctr Meuse Haute Marne, BP9, F-55290 Bure, France

来源：

POROMECHANICS VI: PROCEEDINGS OF THE SIXTH BIOT CONFERENCE ON POROMECHANICS | 2017年

关键词：

BEHAVIOR;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Non-homogeneity of the pore pressure field is an issue when testing low permeability geomaterials, as in the case of the Callovo Oxfordian claystone (k < 10(-19) m(2)), a possible host rock for radioactive waste disposal. Excess pore pressure can result in significant errors in the measured material parameters. An analytical solution for the pore pressure field evolution in a sample under various loading paths with different loading rates is presented. These solutions permit an estimation of the necessary testing procedures and applicable measurement corrections for reliable evaluation of poroelastic material properties. The proposed methods are applied in a parameter study on the Callovo Oxfordian claystone.

引用

页码：117 / 124

页数：8

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