In order to study the variation of the stiffness, the variance ratio of the stiffness within the same horizontal or vertical plane is computed.
为了研究该机床静刚度的变化情况，计算同一水平面或竖直面内的静刚度变化率。
When the ratio of axial stiffness and lateral stiffness is small, most of the horizontal load was borne by the lateral force of piles.
当轴向刚度与侧向刚度的比值很大，基础水平荷载主要由桩轴向力承担；
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