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反拱水垫塘底板缝隙中动水压强特性的试验研究
引用本文:孙建,陈长植. 反拱水垫塘底板缝隙中动水压强特性的试验研究[J]. 水力发电学报, 2002, 0(Z1): 88-95
作者姓名:孙建  陈长植
作者单位:清华大学水利水电工程系,北京,100084
基金项目:国家"九五"重点科技攻关项目:96-221-05-02-02和国家自然科学基金资助项目:59979010
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.

关 键 词:反拱水垫塘 缝隙 动水压强 稳定 试验研究
修稿时间:2001-07-26

Experimental Research on Characteristics of Hydrodynamic Pressure Spreading in the Base Gap under the Tie Floor of Arch Invert Water Cushion Pool
Sun Jian Chen Changzhi. Experimental Research on Characteristics of Hydrodynamic Pressure Spreading in the Base Gap under the Tie Floor of Arch Invert Water Cushion Pool[J]. Journal of Hydroelectric Engineering, 2002, 0(Z1): 88-95
Authors:Sun Jian Chen Changzhi
Affiliation:Department of Hydraulic Engineering Tsinghua University Beijing 100084
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.
Keywords:Arch invert water cushion pool Base gap Hydrodynamics Stability Experiment research
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