Overview of Stability Analysis Between Flat Clayey Soil and Collapsing Soil on Slopes
Introduction 1. Flat Clayey Soil Definition : Flat clayey soil refers to earth that contains a high concentration of montmorilonite clay minerals. When submerged, particles flatten and expand, exhibiting swelling behavior. Determination Method Flat Potential (Ep) : Calculated as the ratio of flat centrality (Z) to absorption (ΔH). If Ep is greater than or equal to 0.5, it is classified as flat clayey soil; if less than 0.5, it is non-flat soil. 2. Collapsing Soil Definition: Collapsing soil, such as loess and volcnic ash sediments, decreases in volume significantly even without external force when wet. Determination method: 1. Collapse Potential (Cp) : Measures the percentage change in volume upon wetting. A Cp value greater than 5 classifies it as collapsing soil, and less than 5 as non-collapsing soil. Issues with slope stability 1. Fluid Activity Flat Clayey soil : Drying and shrinking of the exposed surface can lead to cracking and fluid activity....