针对某平原水库大坝建坝以来发生的变形特征,该文提出了基于大坝坝基变形点、坝后工作基点以及坝区变形监测点的综合分析法。分析结果表明:由于东坝和西坝区域受水的压力比较小;东西坝的变化非常小;北坝受水的影响大,水的推力和压力导致坝基变形点沉降后大坝北侧工作基点以外区域有略微抬升;以大坝坝基为界,以北区域在一定范围内有所抬升,大的区域基本没有反应。
Aiming at the displacement characteristics of certain plain water reservoir from its construc tion, the paper put forward a comprehensive analysis method based on the dam foundation deformation monitoring points, the dam work basis points and the dam deformation monitoring points. Result demon- strated that the deformation of east and west dam was with the lowest value because of low water pressure of east and west dam area; north dam area had the largest water pressure, push and pressure force of wa- ter led to the descending of dam foundation deformation points and a slight uplift of the area outside the north dam work basis points, the northern areas of the dam foundation had a regional uplift while other areas had no displacements.