摘要
结合某水库溢洪道水力模型试验,研究优化布置对溢洪道水力特性的影响。通过对进水渠导墙布置型式以及墙身结构优化,扩大进水面、减小导墙进口内、外侧水位差、改善进水渠内水流流态,从而提高溢洪道泄流能力;通过增加外凸式阶梯陡槽段、降低消力池尾坎高程等措施,增加下游消能效果,优化出池流态。
Combined with the hydraulic model test of spillway,the influence of optimization arrangement on hydraulic characteristics is discussed.The flow pattern of inlet channel and flow capacity of the spillway can be effectively improved by adjustment of the entrance guide wall and optimization of guide wall body structure which can increase water capacity,balance the water level difference between both sides of guide wall.Stepped energy dissipater of discontinuous outer bulging is used in steep spillway,and the measures to reduce the elevation of the baffle sill,its role to increase energy dissipation effect,which can optimize downstream flow regime.
作者
程怡
代长贤
余定仙
CHENG Yi;DAI Changxian;YU Dingxian(Guang Dong Zhu Rong Architecture&Engineering Design Co.,Ltd.,Guangzhou 510611,China)
出处
《广东水利水电》
2018年第2期9-14,18,共7页
Guangdong Water Resources and Hydropower
关键词
溢洪道
导墙布置
开孔平差
流态优化
泄流能力
阶梯消能
spillway
guide wall arrangement
balance water level difference
flow regime optimization
discharge capacity
stepped energy dissipation
