摘要
华东地区最大水电站水口水电站下闸蓄水后对上游来沙的拦蓄,以及经济建设对下游"闽江砂"需求骤增,使得闽江下游河道水沙条件发生深刻变化,闽江下游河道持续下切。本文通过数学模型探索了在天然径流和东海潮流共同作用下,距闽江入海口一百多公里的水口水电站坝下水位未来的变化规律,并根据闽江下游河沙的储藏量和特点,预测了人为采砂对水口水电站最低通航和发电水位的影响以及水口水电站坝下极限最低水位。
Sand is deposited in the Shuikou reservoir on the Minjiang river （Fujian）, and its downstream Minjiang sand recently becomes a surging demand by economic construction. Sand mining caused a significant change in the hydrodynamic conditions and a riverbed scour in the downstream. This paper uses a mathematical model to explore the future change in the water level in the downstream mainstream of over lOOkm long under interaction of natural river runoff and the tide of the East China Sea. According to the storage volume and sand features, the lowest navigation level and the lowest limit water level were predicted for this hydropower station under the influences of sand mining.
出处
《水力发电学报》
EI
CSCD
北大核心
2013年第4期137-142,共6页
Journal of Hydroelectric Engineering
基金
水利部公益性行业科研专项(200901079)
关键词
水力学
水动力
人为采沙
水位预测
数学模型
hydraulics
hydrodynamics
sand mining
water level prediction
mathematical model
