南水北调与水利科技2016，Vol.14Issue(6)：105-110,6.DOI:10.13476/j.cnki.nsbdqk.2016.06.018
基于锦屏一级原型观测水垫塘底板振动特性研究
The vibration characteristics of slabs in plunge pool based on archetypal observation of Jinping-ⅠDam
摘要
Abstract
Jinping‐ⅠDam is the highest hyperbolic arch dam in the world .Vibration and safe protection of plunge pool is particu‐larly significant .Based on the spillway vibration test archetypal observation of plunge pool of Jinping‐Ⅰarch dam ,the flow‐in‐duced vibration response of slabs in plunge pool in different groups were analyzed and studied .The results showed Jinping‐I plunge Pool vibration intensity increased along the way at a separate middle outlets flood ,slabs had serious vibration in plunge pool during surface outlet and both surface and middle outlet discharge ;the dominant frequency of vibration of slabs was distrib‐uted between 0 .3 and 1 .3Hz ,belonging to the frequency range of fluctuating ,the slabs had forced vibration under water load ;the correlation of slabs vibration between adjacent measuring points was remarkable ,the spatial integral scale of slabs vibration was kept above 45 m in all groups ,the integrity and structure of the slabs were good .The results had a certain reference value for reasonable dispatching ,scientific operational and protection of the safe operation of the downstream flood releasing structure of Jinping‐Ⅰhydropower station .关键词
原型观测/水垫塘底板/振动特性/相关性/空间积分尺度Key words
archetypal observation/slabs in plunge Pool/vibration characteristics/relevance/spatial integral scale分类
水利科学引用本文复制引用
冷东升,杨敏,马斌,刘昉..基于锦屏一级原型观测水垫塘底板振动特性研究[J].南水北调与水利科技,2016,14(6):105-110,6.基金项目
国家科技支撑计划（2011BAB05B05）；国家自然科学基金项目（51309177；51179119）；国家重点基础研究发展计划（973计划）（2013CB035905）；高等学校博士学科点专项科研基金（20120032120051） FundNational Key Technology Support Program （2011BAB05B05）；National Natural Sciences Foundation of China （51309177；51179119）；National Key Basic Research and Development Program （973 Program）（2013CB035905）；Research Fund for the Doctoral Program of Higher Education of China （）
