不同重塑方法对土体抗剪强度的影响研究

The Study of Soil Strength by Different Remodeling Methods

本文利用击实法、静压法分别对黏土和粉质黏土制备重塑土样,研究不同重塑方法对土体抗剪强度的影响。结果表明,利用静压法制备出的重塑土样在抗剪切性上整体要强于击实法所获得的重塑土样;粉质黏土抗剪主要依靠剪切面土粒之间的摩擦力,而非土粒之间的粘聚力,当法向应力变大时,粉质黏土的抗剪切性增长快,土粒之间摩擦系数较大。

In this paper,compaction method and static pressure method were used to prepare remolded soil samples of clay and silty clay respectively,and the influence of different remolding methods on the shear strength of soil was studied.The results show that the shear resistance of the remolded soil prepared by the static pressure method is gen⁃erally stronger than that obtained by the compaction method;the shear resistance of the silty clay mainly depends on the friction between the soil particles on the shear plane,rather than the cohesion between the soil particles.When the normal stress increases,the shear resistance of the silty clay increases rapidly,and the friction coefficient be⁃tween the soil particles is larger.