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刘家峡枢纽是中国目前最大水电站之一。自从蓄水以来,该电站已对混凝土重力坝进行了许多项目的观测,其中1715廊道位移属于主要项目。本文对这一项目观测资料的统计分析和解释的方法作较详细的介绍。文中引出若干揭示大坝结构特性的结论,作者认为这些方法可资通用。文中对于观测工作和观测设备布设的改进问题也提了一些建议。作者认为,分析之前,统计模型的建立值得认真研究,文中对于这一问题作了较详细的讨论。虽然采用统计分析,但应该尽量考虑与坝有关的各种因素。为了最后能得到最优的回归方程,在逐步回归分析中还采用了二个模型方案MⅠ和MⅡ,以资比较。为了深入考察大坝对周围影响因素的反应,作者充分利用逐步回归分析的优越性,试图将位移分
Liujiaxia hub is one of the largest hydropower stations in China. Since the water storage, the station has conducted many observations of concrete gravity dams, of which 1715 corridor displacements are major projects. In this paper, the statistical analysis of this project observation data and explain the method for more detailed introduction. The paper leads to a number of conclusions reveal the structural characteristics of the dam, the author believes that these methods are common. The paper also made some suggestions on the improvement of the observation work and observation equipment deployment. The author believes that before the analysis, the establishment of statistical model deserves careful study, the article made a more detailed discussion of this issue. Although statistical analysis is used, it is important to consider the various factors associated with dams. In order to get the optimal regression equation finally, two models MⅠ and MⅡ are also used in the stepwise regression analysis to compare with each other. In order to investigate the dam response to the surrounding factors, the author makes full use of the advantages of stepwise regression analysis,