摘要：针对南水北调东线南四湖上、下级湖调水的出、入湖口提水泵站开启时间差计算确定问题，开展了调水出湖泵站开启的充要条件、开启时间和湖内水位升高速率等相关内容的研究。其成果表明出湖泵站开启在保证泵站引水渠进口水位下降控制不低于相应设计水位的充要条件是：入湖口提水泵站输水惯性波前锋到达出湖口，且入湖调蓄水量能满足输水流量形成恒定流水面线比降的楔形水体容积。同时，研究提出了出湖泵站开启时间、湖内水位升高速率和湖水位的计算公式以及相关图表，为工程设计和未来的调度运行管理奠定了理论基础。

关键词：南四湖；提水泵站；开启条件；开启时间；水位升高速率

中图分类号：tv68 文献标识码：a 文章编号：1672-1683（2008）01-0077-04

start-up time difference of pumping station of nansi lake in the south-to-north water transfer

wu zhou-hu1,luo hui2,liu chang-yu3,sun li-feng1,zhao pei-qing3

((1.qingdao technological university,qingdao 266033,china;2.shandong construction and management bureau of the south-to-north water diversion project,jinan 250013,china;3.shandong design institute of water resources and reconnaissance,jinan 250013,china))

abstract:by calculating start-up time difference of in-lake and out-lake pumping station in the upper and lower lakes,the article studies the necessary and sufficient condit