Comparison of Displacement and Effective Stress of Landslide Potential in Dry and Seepage Conditions

Abstract

The current study aims to compare the displacement and effective stress of the landslide potential in dry and seepage conditions. First, we examine the simple model without the presence of piles. For this purpose, the mentioned landslide potential was created in the 2D Plexis software. The results showed that in the saturated state, the safety factor obtained from the landslide potential is about 0.95, which is numerically unstable and warns of the instability of the landslide potential in the saturated state. Therefore, structural elements are used to stabilize it. In the dry state without the presence of structural elements, the mentioned potential is stable, but the maximum displacement is 0.572 meters, which decreases to 0.281 meters with the addition of the pile structural element and to 0.203 meters with the nail structural element, and increases to 0.667 meters with the micro-pile element. In the seepage state without the presence of structural elements, the mentioned potential is unstable, which decreases to 0.639 meters with the addition of the pile structural element and to 0.346 meters with the nail structural element, and increases to 0.906 meters with the micro-pile element. With the addition of the pile structural element, it reaches 762.2 kN/m², the nail element reaches 404.7 kN/m², and the micro-pile element reaches 864 kN/m².

Keywords: Landslide Potential; Effective Displacement, Effective Stress, Dry Condition, Seepage