The soft base strengthened by low strength of concrete piles can make the soil dense, raise the stiffness and decrease the deformation.
用低标号混凝土桩加固软弱地基，可以密实土质，提高刚度，减小变形。
With the decrease of foundation embedment, the foundation stiffness is decreased, and the interaction become more evidently.
随着基础侧限埋深的减小，基础刚度降低，相互作用体现得更加明显。
The results show that doping 1%( mass fraction, same as below) P to pure tin can improve the strength and stiffness, decrease the plasticity.
结果显示在纯锡中添加1%（质量分数，下同） P，能够提高强度、刚度，降低塑性；
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