基于逐步回归法的水闸沉降统计模型研究

Study on Statistical Model of Sluice Settlement Based on the Stepwise Regression Method

由于不均匀沉降导致水闸结构倾斜、错缝甚至溃闸现象时有发生,找出水闸沉降产生的主要原因并采取针对性措施处理非常必要。运用逐步回归分析法,建立时效位移、水压和温度共同作用的沉降统计模型,结合某水闸工程位移观测资料实例,分析和梳理出影响水闸沉降的主要因素。结果表明:该水闸水压分量是影响水闸沉降最主要的因素,在水位波动较大时期应加强沉降观测。

Due to uneven settlement, the sluice structure is inclined, staggered or even broken. It is necessary- lo find out the main cause of sluice settlement. It is necessary- to take targeted measures. This paper establishes the aging method by stepwise regression analysis. The settlement statistical model of displacement, water pressure and temperature, combined with the example of displacement observation data of a sluice project, analyzes and combs out the main tactors attecting the settlement of the sluice. The results show that the water pressure component of the sluice is the most important tactor affecting the sluice settlement. Settlement observations should be strengthened during periods of high water level fluctuations.