Analysis of partially saturated liquefiable soil through strain space multiple mechanism model

This paper presents a new formulation of governing equation of three phase medium, consisting of solid skeleton, gas and water through a generalized fluid vector and presents two examples of application to partially saturated liquefiable soil. One example is the application to horizontally layered partially saturated liquefiable ground. In particular, behavior of soil above the ground water is discussed in detail in this example, including change in degree of saturation due to pore water seepage flow above the ground water table. The other example is on an embankment retaining water in one side, where initially seepage flow and phreatic line analysis is presented as initial seepage and gravity analysis, and then earthquake shaking is applied at the base to discuss the behavior of partially saturated embankment.