ABSTRACT
Based on the orthogonal experimental design method, using barite powder, quartz sand, gypsum, laundry detergent, bentonite, and water as raw materials, the soil similar materials of the foundation pit in the model test were configured, and the physical and mechanical indexes such as density, cohesion, and internal friction angle of similar materials with different proportions were obtained. The results show that (1) the physical and mechanical parameters of similar materials prepared according to the mixing plan have a wide distribution range, and the physical and mechanical parameters of similar materials prepared according to the mixing plan have a high degree of coincidence with the original rock; (2) the similar materials can lay a foundation for subsequent friction model tests.
