水射流进入水垫塘可以将气体卷入塘内，形成水垫塘自掺气的水气两相流流场。
Air is entrained as water jetting into water cushion pool, the gas-liquid two phase flows field are formed.
以往在消力池或水垫塘底板的稳定性设计中，很少注意板块上脉动荷载的作用。
In the stability design of the bottom slab of stilling basin or water cushion pool for a long time past, a little attention was paid to the pulse load on the slab.
为了有效减轻坝身下泄水流对水垫塘底板的动水冲击压强，须尽量分散下泄水舌。
In order to alleviate the value of the plunging pressure caused by plunging jet from DAMS effectively, plunging jet should be dispersed in the receiving pool.
数值计算表明，在水垫塘排水系统有效情况下，水垫塘不会引起坝基扬压力的增加；
The computation results testify that the construction of plunge pool will not increase the uplift pressure while the drainage system of plunge pool is effective.
相对而言，随着窄缝收缩比的减小，水垫塘冲击荷载略有减小，但同时起挑水头增加。
Comparatively, with the reducing of shrinkage ratio of slit, the shock loads of receiving pool reduce, but the critical hydraulic head that just can cause deflecting heightens simultaneously.
计算结果表明，公式是合理的，可为进一步的实验研究和水垫塘泄洪消能布置提供科学依据。
The calculated results show that the provided formulas are rational and can serve as scientific references for further test study and layout design of energy dissipation in plunge pool.
窄缝挑坎应用于高拱坝深孔后，其出射水流内外缘抛距是确定拱坝下游消能水垫塘长度的重要依据。
When the slit-type buckets are applied to the orifices in a high-arch dam, the nappes trajectory distance is basic to the design of the plunge pool.
小湾拱坝坝身泄洪消能的技术难度已达世界当前最高水平，其水垫塘的优化设计亦是工程中的一大难题。
The technical difficulty in flood discharging energy dissipation of the Xiaowan arch dam body leads the world and its plunge pool optimization design is also a major difficult problem of the project.
文中还讨论了小湾水垫塘采用全面混凝土衬砌的必要性，并对水垫塘底板高程、长度及体型提出了新建议。
Further, the paper discussed the necessity of using full concrete lining for the Xiaowan plunge pool and made new proposals for its bottom elevation, length and shape.
文中还讨论了小湾水垫塘采用全面混凝土衬砌的必要性，并对水垫塘底板高程、长度及体型提出了新建议。
Further, the paper discussed the necessity of using full concrete lining for the Xiaowan plunge pool and made new proposals for its bottom elevation, length and shape.
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