关键词: 压实度, 水泥改良, 养护龄期, 渗透, 压缩模量, 三轴UU试验

Abstract: Taking Baigou river bank silt as an example, in order to make effective use of Baigou river bank silt, samples are prepared according to different compactness and different cement content, and the samples are saturated after curing for different times. The variation laws of physical and mechanical parameters such as maximum dry density, optimal moisture content of bank silt in natural state and permeability coefficient, compression modulus, cohesion and internal friction angle (triaxial UU test) in saturated state are analyzed. The results show that  with the increase of cement content, the maximum dry density and optimal moisture content also increase. With the increase of cement content, age and compactness, the main physical and mechanical parameters increase, but their variation ranges have obviously different characteristics and regularity. This study provides theoretical data and basis for in-situ utilization of silt in Baigou river slope treatment.

Key words: compactness , cement improvement, curing period infiltration, compression modulus, triaxial UU test