反拱形水垫塘底板上举力特性的试验研究  

Study on uplift of counter-arched slab in plunge pool

作　　者：常云华[1] 王秀杰[2] 李宗伟[1] 

机构地区：[1]长春工程学院,长春130012 [2]天津大学,天津300072

出　　处：《振动与冲击》2010年第5期228-229,234,共3页Journal of Vibration and Shock

摘　　要：以实际工程高拱坝水垫塘底板稳定性研究为背景,阐述了反拱形水垫塘底板上举力的成因,建立了考虑板块下表面压力沿缝隙传递的失稳区板块专门水力学模型测量板块的上举力,在模型试验结果的基础上,分析了底板上举力的分布规律。给出的最大上举力经验公式,可用于工程设计中反拱结构的水动力荷载计算。Based on the stability research of slabs in plunge pool of a high arch dam,the case of the uplift formation and its solving method were expounded.The distribution of the uplift acting on the slabs were studied.The empirical formula for calculating maximum uplift given out in the paper can be generally used to calculate the hydraulic loads in engineering.

关 键 词：反拱形 水垫塘 水流冲击 上举力 

分 类 号：TV32[水利工程—水工结构工程]