Analysis of Microstructural and Mechanical Behavior Changes of Root-Soil Loess Before and After Shearing

This dataset compiles micro-CT scan data of root-soil composite loess from the Xunyi area of China, focusing on the evolution characteristics of the micro-pore structure before and after direct shear experiments. It includes two-dimensional image sequences and 3D reconstruction models of four types of loess samples—root-free (NRL), horizontally rooted (RL-0°), inclined rooted (RL-45°), and vertically rooted (RL-90°)—both before and after shear failure. Based on this data, quantitative indicators such as porosity, pore size distribution, pore morphology (roundness, flatness), and pore orientation anisotropy can be extracted. The dataset aims to reveal how different root orientations influence the reconstruction of loess pores and the formation mechanism of shear bands during the shearing process, providing critical evidence for clarifying the micro-mechanisms of root reinforcement and soil stabilization.