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均质和心墙型土坝的迎水坡,当库水位降落时,可能产生促使它滑动的动水压力。因此在土坝设计实践中,通常须核算水库水位降落时迎水坡的稳定性,为了正确地计算动水压力对迎水坡稳定的影响,首先须解决水库水位降落时,坝壳中自由水面位置的变化问题。 下面介绍两种计算水库水位下降时,坝体中自由水面线位置的近似公式,以供设计
Homogeneous and heart-shaped dam embankment water slope, when the reservoir water level falls, it may produce a hydrodynamic pressure to make it slide. Therefore, in the design of earth dam, it is usually necessary to calculate the stability of the slope facing the water level when the reservoir water level falls. In order to correctly calculate the influence of hydrodynamic pressure on the stability of the water slope, it is first necessary to solve the problem that when the reservoir level falls, Location changes. Here are two approximate formulas for calculating the position of free water lines in a dam when calculating the water level drop in a reservoir for design