ABSTRACT

This paper discusses the application of non-linear finite element method, which incorporates joint elements, as a design method for slope stability and landslide prevention pile work. The method requires simple ground properties as input parameters, such as unit weight, elastic modulus and Poisson’s ratio, which are similar to the requirements for linear finite element method, as well as cohesion, angle of internal friction and tensile strength which correspond to those needed for limit equilibrium analysis; hence, no special test is required. In this method, the landslide slip surfaces are modeled by joint elements, while the landslide prevention piles are modeled as beam elements. In addition, the landslide prevention piles and the sliding zone are connected through joint elements which are different from those in the slip surfaces. From the results of the analysis, the effectiveness of the landslide prevention piles considering the installation location can be evaluated.