LEADER 00000nam  2200349   4500 
001    AAI1445944 
005    20080708103700.5 
008    080708s2007    ||||||||||||||||| ||eng d 
020    9780549128045 
035    (UMI)AAI1445944 
040    UMI|cUMI 
100 1  Dominguez, Justin Anthony 
245 10 Rainfall-induced pore pressure response in slopes: A case-
       study comparison of one- and two-dimensional analyses 
300    152 p 
500    Source: Masters Abstracts International, Volume: 46-01, 
       page: 0433 
500    Adviser: Lewis Edgers 
502    Thesis (M.S.)--Tufts University, 2007 
520    Seepage is governed by non-linear partial differential 
       equations for which closed-form solutions do not exist. 
       Therefore, analysis must be performed numerically. The use
       of finite-element software makes seepage modeling 
       possible. Rainfall infiltration can be modeled using 
       either a one-dimensional system, in which only the 
       vertical component of flow is considered, or a two-
       dimensional system, in which the lateral component of flow
       is also considered 
520    The objective of this thesis is to determine whether the 
       added complexity of developing a two-dimensional model is 
       justified by an improvement in results. In this thesis, 
       the computed pore-water pressure responses of one- and two
       -dimensional flow models are compared for a slope in Japan
       that was subjected to artificial rainfall until failure. 
       The work focused on the importance of accurately 
       representing soil stratigraphy, soil hydraulic parameters,
       and numerical issues in creating the models. If the one-
       dimensional model provides similar results to the two-
       dimensional model, then the extra effort of developing the
       two-dimensional model might not be justified 
520    I found that initial conditions, soil stratigraphy, and 
       soil hydraulic properties all had more of an effect on 
       seepage than whether flow was one-dimensional or two-
       dimensional. The one-dimensional model was easier to 
       develop than the two-dimensional model. The two-
       dimensional model, however, had the advantage of showing a
       pore-water pressure response in the slope as a whole 
590    School code: 0234 
590    DDC 
650  4 Engineering, Civil 
690    0543 
710 2  Tufts University.|bCivil Engineering 
773 0  |tMasters Abstracts International|g46-01 
856 40 |uhttp://pqdd.sinica.edu.tw/twdaoapp/servlet/