Comparative experimental study on the influencing factors of shear strength of improved soil
To analyze the shear properties of cement-stabilized soil and lime-stabilized soil,experimental studies are conducted on the shear strength,cohesion,and friction angle of the two types of stabilized soil under different mass ratios of cement and lime to dry soil.The effects of the mass ratio of cementitious materials to dry soil,dry density,moisture content,and curing age on the shear performance of the stabilized soil are analyzed.The results show that under the same curing age,the shear strength,cohesion,and friction angle of both types of stabilized soil increase as the mass ratio of cementitious materials to dry soil rises from 4％to 10％.The correlation coefficients of the fitting functions are all greater than 0.980,and the fitting curves all follow a quadratic polynomial relationship.As the compaction degree increases from 90％to 99％,these parameters linearly increase,with compaction degree having a more significant effect on the cohesion of lime-stabilized soil.As the moisture content increases from 13％to 22％,the shear strength and friction angle exhibit a quadratic polynomial relationship,while cohesion is linearly related to moisture content.When the curing age is increased from 7 days to 120 days,the shear performance rapidly increases initially,stabilizing after 60 days of curing.
improved soilshear testshear strengthcementitious material
万方数据
维普
