反拱水垫塘多底板块振动特性试验研究  

Experimental Study on the Characteristics of the Movement of Slabs in the Invert Arch Plunge Pool

作　　者：赵燕华[1] 孙建[2] 张金明 樊新建[4] 

机构地区：[1]陕西广播电视大学工程管理系,陕西西安710119 [2]西安理工大学水电学院,陕西西安710048 [3]珠江水利委员会珠江水利科学研究院,广东广州510611 [4]兰州理工大学流体动力与控制学院,甘肃兰州730050

出　　处：《人民黄河》2013年第2期116-119,共4页Yellow River

基　　金：国家自然科学基金资助项目(50279040)

摘　　要：对溪洛渡拱坝工程建立了水力学精细模型,考虑了拱圈底板块锚固力失效,止水破坏,拱圈所有底板块横缝、纵缝和底缝完全贯通的极端情况,利用先进量测系统,测量了高水头、大流量作用下拱圈9个底板块的振动位移,揭示了拱圈多底板块位移沿流程及拱圈的分布规律。结果表明,拱圈多底板块位移特征值沿流程及拱圈呈多峰分布,拱圈在局部拱和整体拱的作用下不会发生整体失稳或强度破坏。Fine physical model with regard to Xiluodu Water Power Station was made in this experiment. An experimental research on the characteristics of the movement of nine unstable slabs in the invert arch plunge pool was made by advanced measurement methods under extreme conditions of completely damaged watertight seal and invalidated arch rod and under the impact of large discharge from high water head. The displacement distribution laws for the movement of the multi-slabs along longitudinal and lateral flowing path were obtained. The results show that displacement of slabs is distributed by the law of multi-peaks. The arch ring and slabs are not damaged by sympathetic vibration or fatigue of materials.

关 键 词：反拱水垫塘 多底板块 位移 试验 溪洛渡工程 

分 类 号：TV135.2[水利工程—水力学及河流动力学]