摘要
本文使用锦屏一级、溪洛渡、糯扎渡三个大型工程的水垫塘1∶100水弹性块体模拟底板的水工模型研究了块体失稳条件。并采用专门设计的测试块体承受脉动上举力装置,测试了块体具有一定抗力条件的受力过程。进行了回归分析,给出了一定抗力条件下的安全水深,或一定水深条件下所需抗力(板重力和加锚固)大小的公式。本文对护底或护坡不护底的水垫塘塘底破坏性分析都有参考意义。
The destabilization conditions of apron slabs in plunge pool are studied by making use of hydraulic models with a scale of 1 ： 100 of hydropower stations Jinping I , Xiluodu and Nuozhadu. The loads on slabs with certain resisting force are measured by a special instrument. The regression analysis is carried out. The formula for the safety depth of water-cushion under certain resisting force or the resisting force needed under certain depth of water-cushion is given. This research has significant reference for failure analysis on plunge pool with apron slabs in the bottom or that with apron slabs on the slope.
出处
《水力发电学报》
EI
CSCD
北大核心
2008年第1期64-68,73,共6页
Journal of Hydroelectric Engineering
基金
国家自然科学基金项目(50779044)
关键词
水工结构
水垫塘
底板稳定
扩坡不护底
安全水深
hydraulic structure
plunge pool
stabilization of slab
with apron slabs on the slope
safety depth of water-cushion
