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. Dans-l-'hypothèse-d-'un-petit-déplacement, à partir des équations (A.5) et (A.8), et en prenant en compte que la pression interstitielle est égale à la pression de solide (2.20),I'équation (A.12) devient, 1998.

. Avec, 13) (A.r4) (A.ls)

. Mkkt-a, lb-(r -f')fo,* (t -f')o, où Mest le module de Biot IDOM, 2002.

L. Équations and (. A. , 10) et (A.13) sont les équations de la conservation de la masse pour le mélange solide-liquide dans le cas

. Dans-le-cas-isotherme, et dans le cas de I'incompressibilité du solide et du liquide nous avons : I I =0. b:l K,'K, l'équation de la conservation de la masse du solide (A.10) devient : (r-zt)-'=t*r

. La-relation, 11) devient pour Re(c)> ne(b) > 0 et lzl<l : H (a,b;c;z)= =,' .11) , ' 'fra_,1t -t)c-t-t (l-zr)-" dt (8.13) \ ' ' I-(ô)f(t-b)d '