河道层状淤泥对大坝地震动水压力的抑制效应研究

以压力波理论为出发点，结合数值配点分析法，对拱坝坝面动水压力随淤泥层厚度、库底边界反射条件、库底基岩性质变化而产生的影响效应问题进行了研究。结果表明：淤泥层对大坝坝面动水压力有较好的抑制效应，可一定程度减缓地震对大坝工程的影响，库底边界吸收性亦可降低坝面动水压力峰值。

Research on Depression Effect of Silt Stratification for Hydrodynamic Pressure from Seismic Response of Dam

Based on the theory of pressure wave, analysis of Numerical Fitting-point has been applied to study the effect of hydrodynamic pressure from silt depth, reflection boundary and bedrock feature for arch dam. It showed that silt stratification may produce explicit depression effect on hydrodynamic pressure of dam surface and decrease the seismic motion at some extend, absorbability effect of submarine boundary can too reduce the peak value of hydrodynamic pressure of dam surface.