摘要
对刘家峡水库运行初期、低水位运行期和高水位运行期以及1968—2005年洮河库段、黄3—黄9-1库段及坝前黄0—黄3库段的淤积形态进行了分析,结果表明:①影响洮河库区淤积的主要因素是汛期水位的高低,与来沙量的关系不大,控制汛期水位是减少该库段淤积和降低沙坎淤积高程的关键;②黄3—黄9-1库段淤积形态也受汛期平均水位和最低水位的较大影响,与洮河来沙量的关系不大;③坝前库段泥沙的冲淤主要取决于水库异重流排沙的效果,解决坝前库段泥沙淤积问题的有效途径是坚持异重流排沙。
The paper analyzes the sedimentation morphology during the initial stage,low water stage and high water stage of the operation of Liujiaxia Reservoir and reservoir section of Taohe River,reservoir sections of the Yellow River from No.3 to No.9-1 and sections in front dam from No.0 to No.3 in 1968-2005 period.The outcomes show that a) the main factor affecting the sedimentation of Taohe Reservoir area is the water level in flood season,no relationship with the incoming sediment and reducing the deposition of the reservoir section and reducing the elevation of sedimentation at silt arrester are the key factor to control the water level in flood season;b) the sedimentation morphology of the sections of the Yellow River from No.3 to No.9-1 also has greatly affected by the average water level of the flood season and the minimum level and no relationship with the incoming sediment of Taohe River and;c) the scour and fill in front dam mainly depend on the effect of density current desilting of the reservoir.The effective way for solving the sedimentation in front dam is to persist in density current desilting.
出处
《人民黄河》
CAS
北大核心
2011年第1期20-21,143,共2页
Yellow River
关键词
异重流排沙
淤积形态
泥沙
刘家峡水库
density current desilting
sedimentation morphology
sediment
Liujiaxia Reservoir
