Excavation Damage in Unsaturated Porous Media
This paper presents a damage model dedicated to unsaturated brittle rocks. It mixes phenomenological and micro-mechanical concepts, and is formulated based on the use of independent state variables (net stress and suction). The expression of the liquid permeability is modified in order to represent the influence of fracturing on interstitial fluid flows.
H.S. Lee, I.S. Yoon and M.H. Aliabadi
C. Arson and B. Gatmiri, "Excavation Damage in Unsaturated Porous Media", Key Engineering Materials, Vols. 385-387, pp. 137-140, 2008