土坝纵向水平位移观测是观测两两位移点间长度的应变值。
The observation of longitudinal horizontal displacement of an earth dam is to observe the relative strain of the length between two displacement points.
用钢尺做精密量距是土坝纵向水平位移观测的最优观测方法。
Using steel tapes to measure the distance is the best method for the observation of the horizontal displacement of earth DAMS.
基于观测的混凝土大坝坝顶水平位移，建立了识别混凝土大坝和岩石基础力学参数的数值方法。
Based on the measured horizontal displacements of the dam, the inversion procedure is proposed for determining the material constants of the rock masses and the concrete dam.
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