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Erschienen in: Rock Mechanics and Rock Engineering 3/2016

25.04.2015 | Technical Note

Effective Stress Principle for Partially Saturated Rock Fractures

verfasst von: Y. Li, Y. F. Chen, C. B. Zhou

Erschienen in: Rock Mechanics and Rock Engineering | Ausgabe 3/2016

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Excerpt

Soils and rocks are commonly characterized as a porous or fractured medium, with liquid and gaseous fluids occupying and moving in the void space. The presence of water in the void space remarkably influences the deformation behaviors, mechanical properties and stress states of soils and rocks. It has been well recognized that the induced volume change, deformation and shear strength decrease of soils and rocks do not depend on the total stress applied, but on the effective stress defined at the saturated state due to the difference between the total stress and the fluid pressure in the pore space. The deformation of soils and rocks further alters the pore or fracture network and induces a non-negligible variation in hydraulic properties (Kirby 1991; Chen et al. 2007; Li et al. 2014a). Therefore, the concept of effective stress plays a dominant role in understanding the coupled hydromechanical behaviors of soils and fractured rocks. …

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Metadaten
Titel
Effective Stress Principle for Partially Saturated Rock Fractures
verfasst von
Y. Li
Y. F. Chen
C. B. Zhou
Publikationsdatum
25.04.2015
Verlag
Springer Vienna
Erschienen in
Rock Mechanics and Rock Engineering / Ausgabe 3/2016
Print ISSN: 0723-2632
Elektronische ISSN: 1434-453X
DOI
https://doi.org/10.1007/s00603-015-0758-2

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