【摘要】 斜坡波压力计算公式经验性较强,计算公式种类繁多。为了探讨经验公式在预测滑坡涌浪对斜坡作用力的适用性问题,构建几何比尺为1∶70的滑坡涌浪三维物理模型,试验研究了不同工况时滑坡涌浪最大波与有效波下斜坡作用力的变化规律,采用3种常用的斜坡波压力经验公式,对比分析了滑坡涌浪下滑坡入水点正对岸斜坡波压力大小、作用点位置及分布特性。结果表明,3种经验公式计算结果有较大的差异,基于试验结果,路基公式经修正后可用于预测滑坡涌浪下斜坡波压力大小;向金公式经修正后可用于预测滑坡涌浪破碎作用点位置;波压力在斜坡上的分布趋势与苏联公式是一致的。更多还原

【Abstract】 The slope wave pressure calculation is highly empirical and has a wide variety of calculation formulas.In order to explore the applicability of empirical formulas in predicting the pressure of landslide-generated impulse wave on the slope,we constructed a three-dimensional physical model of landslide-generated impulse wave with a geometric scale of 1:70.We studied the variation law of slope wave pressure under the maximum and the effective landslide-generated impulse waves under different working conditions.Three commonly used empirical formulas for slope wave pressure were used for comparison and analysis of the magnitude,action point position,and distribution characteristics of the pressure of landslide-generated impulse wave on the slope that was directly opposite the water entry point of the landslide.The results showed that the results of the three empirical formulas were quite different.According to the test results,the modified Subgrade Formula can be used to predict the magnitude of the slope wave pressure under landslide-generated impulse wave;the modifiedШАНКИНFormula can be used to predict the breaking point position of landslide-generated impulse wave;the distribution trend of the wave pressure on the slope is consistent with the Soviet Standard Formula.更多还原