【摘要】 对反拱水垫塘底板缝隙中动水压强的特性进行了详细试验研究 ,得出缝口动水压强阻尼特性、盲缝和通缝边界条件对动水压强幅值、时域和频域影响 ,动水压强幅值和谱密度变化规律 ,从而揭示反拱水垫塘底板稳定机理 ,说明反拱底板稳定性比平底板优越。更多还原

【Abstract】 The detail experimental research on the hydrodynamic pressure produced in the base gap between the seat rock and the floor of the arch invert is carried out to obtain the characteristics on the damping of hydrodynamic pressure at the gap entrance, and the effect of both gap conditions upon its amplitude, its time extent and its frequency extent, and the distribution on its amplification and its spectral density. The test opens out the mechanism of the arch invert water cushion pool to keep stability, and also shows its superiority to the flat floor pool.更多还原