Analysis of the Relationship between Plasticity Index,Liquid Limit and Shear Strength of Saturated Soft Clay in a Certain Area of Shanghai
Shanghai is widely distributed with saturated soft clay,whose engineering properties are crucial for foundation stability and the safety of construction projects.The plasticity and liquidity index play a significant role in influencing the shear strength characteristics of soft clay.The study examines the impact of the plasticity index and liquidity index of saturated soft clay on the mechanical parameters of soil shear strength through theoretical analysis,combined with experimental verification of engineering conditions in a certain area of Shanghai.The relationship between the plasticity index and liquidity index of saturated soft clay and its mechanical parameters of shear strength is explored.The research results show that there is a significant correlation between the plasticity index and liquidity index and the cohesion and internal friction angle of the soil mass,and this relationship significantly affects the mechanical properties of the soil mass.The study presented in this paper establishes a theoretical foundation for the engineering design of saturated soft clay,which is of great significance for predicting and improving the engineering characteristics of soft clay foundation pits,slopes,foundations,and other projects.