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机构地区:[1]黄河水利委员会,河南郑州450003 [2]清华大学,北京100084 [3]黄河水利委员会勘测规划设计研究院,河南郑州450003
出 处:《人民黄河》2002年第2期1-4,共4页Yellow River
基 金:国家重点基础研究发展规划项目 (G19990 43 60 3 )
摘 要:大柳树水利枢纽坝址位于黄河上游干流黑山峡峡谷出口处 ,上距兰州 2 5 0km ,下距银川 160km ,控制黄河流域总面积的 3 3 .6% ,总径流量的 5 8% ,总输沙量的 10 % ;水多沙少 ,水资源开发条件优越。拦河大坝拟采用面板堆石坝 ,正常高水位 13 80m ,最大坝高 163 .5m。总库容 110亿m3 ,经水库冲淤平衡 ,10 0年后还可永久保留 5 0亿m3 库容。水电站装机容量 2 0 0万kW ,年发电量 78亿kW·h。大柳树水库与龙羊峡、小浪底水库为黄河水沙调控体系的三大骨干工程 ,大柳树水库具有承上启下、反调节径流、兼顾各方面利益的独特功能 ,是有利于黄河上、中、下游的战略性工程。其主要作用是 :调节上游径流 ,增加黄河可用水源 ,缓解黄河断流 ,改善水沙条件 ,维持主汛期造床输沙流量 ,减轻河道淤积萎缩 ,提供生态用水 ,建设绿色屏障 ,防治荒漠化 ,改善生态环境 ;大幅度提高黄河上游梯级电站发电效益 ;提高宁蒙河段防洪标准 ;防治冰凌灾害 ;从治理和开发黄河全局出发 ,综合效益更大。另外 ,大柳树工程还是南水北调西线工程的调节水库与西电东送北部通道的调节枢纽 ,对于西部开发和黄河治理具有不可替代的战略作用。The Daliushu Hydraulic Complex is to be built at the outlet of the Heishan Strait, 250 km upstream of Lanzhou city,and 160 km lowstream of Yinchuan city.The dam is to control 33.6% of the Yellow River drainage area, 58% of the total runoff and 10% of total transport load. The dam, which is to be made of slab rocks, is of maximum height of 163.5 m. The reservoir is to offer a total storage capacity of 11 billion m 3. It is to be operated keeping a normal stage at 1 380 m. The reservoir will hold a permanent storage capacity of 5 billion m 3 after 100 years of operations after equilibrium. The electricity generating capacity is to be 2 million kW while annual electrical energy to be generated is to be 7.8 million kW·h. The complex, the Longyangxia and the Xiaolandi reservoirs are the three main works in controlling water and sediment in the Yellow River. The Daliushu complex is planned to re adjust runoff so serving all the parties better. Its main roles are to re adjust upstream runoff, increase water volumes available, mitigate the situation of water shortage, improve the match between flow and sediment, maintain the bed forming discharge, alleviate channel deposition and channel withering state, build green curtains to prevent land from deteriorating into desert, improve eco environment, increase power generation efficiency of upstream power stations, enhance the flood control standard from Ningxia to Inner Mongolian reach of the Yellow River, prevent and mitigate the ice disasters and increase the composite benefits. Besides, the Daliushu complex is to function as an adjustment reservoir of the S N Water Diversion as well as an adjustment center for the W E Electricity Transmission. So, it is of great strategic importance in developing the West China and in harnessing the Yellow River.
分 类 号:TV212.52[水利工程—水文学及水资源] TV882.1
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