中国农村水利水电
中國農村水利水電
중국농촌수이수전
CHINA RURAL WATER AND HYDROPOWER
2014年
10期
120-122,125
,共4页
岳生娟%张法星%曲景学%邓永婷
嶽生娟%張法星%麯景學%鄧永婷
악생연%장법성%곡경학%산영정
消力池集中消能%阶梯分级消能%流态%消能效果
消力池集中消能%階梯分級消能%流態%消能效果
소력지집중소능%계제분급소능%류태%소능효과
stilling basin concentrated dissipation%stepped grade dissipation%flow patterns%dissipation effect
针对某水库溢洪道消力池内水流流态较差、消能效果不理想和对下游岸坡冲刷严重等问题，通过水力学模型试验，在原设计方案基础上对比分析了消力池集中消能和阶梯分级消能两种消能方式，并观测了消力池水流流态、底板压强、下游河道水面线等水力特性指标。结果表明，消力池集中消能方式更适合本工程地形特点、地质要求，消能效果明显，出池水流流态较好，与下游河道水面衔接平顺，并且水面波动较小，满足泄洪消能要求。
針對某水庫溢洪道消力池內水流流態較差、消能效果不理想和對下遊岸坡遲刷嚴重等問題，通過水力學模型試驗，在原設計方案基礎上對比分析瞭消力池集中消能和階梯分級消能兩種消能方式，併觀測瞭消力池水流流態、底闆壓彊、下遊河道水麵線等水力特性指標。結果錶明，消力池集中消能方式更適閤本工程地形特點、地質要求，消能效果明顯，齣池水流流態較好，與下遊河道水麵銜接平順，併且水麵波動較小，滿足洩洪消能要求。
침대모수고일홍도소력지내수류류태교차、소능효과불이상화대하유안파충쇄엄중등문제，통과수역학모형시험，재원설계방안기출상대비분석료소력지집중소능화계제분급소능량충소능방식，병관측료소력지수류류태、저판압강、하유하도수면선등수력특성지표。결과표명，소력지집중소능방식경괄합본공정지형특점、지질요구，소능효과명현，출지수류류태교호，여하유하도수면함접평순，병차수면파동교소，만족설홍소능요구。
A hydraulic experimental study is conducted based on a certain reservoir for the problem of flow regime and energy dissipa-tion effect and the downstream slope erosion are rather bad .A comparison is made between hydraulic characteristics of stilling basin concentrated dissipation and stepped grade dissipation .And then the hydraulic characteristics of flow patterns ,pressure at the bot-tom are observed ,water lines of downstream are observed .The results indicate that stilling basin concentrated dissipation is more suitable for the topographic features ,meets geological requirements ,has better dissipation effects and flow patterns ,and the scour on downstream reach and back slope decreases with the smooth cohesion with the downstream water surface ,and the effect of energy dissipation is enhanced and the requirements of energy dissipation is met .
