杭州钱塘江灌区河网增加取水规模取水可靠性分析  

Reliability Research on Increasing Water Scale in River Network of Qiantang River Irrigated Area

作　　者：姬战生[1] 孙映宏[1] 

机构地区：[1]杭州市水文水资源监测总站,浙江杭州310016

出　　处：《浙江水利水电学院学报》2015年第2期12-16,共5页Journal of Zhejiang University of Water Resources and Electric Power

基　　金：国家自然科学基金资助项目(51109054)

摘　　要：通过对河网代表站方千娄水文站水位进行综合分析可知,河网内外水位差较大,通过闸泵引提水能保证灌区用户用水需求;利用MIKE11建立了杭州钱塘江灌区河网水动力学模型,结果表明:现状和规划偏不利取水条件下,河网内河道的过水能力均能使取水口处河道保持足够的取水水深,热电公司取水口的取水保证率在90%以上,且对附近其他取水口处河道水位的影响不大.The comprehensive analysis of water level illustrates that, due to relatively large water level difference of riv- er network inside and outside, drawing water through the sluice gate and pump is expected to meet the needs of water users in the irrigation area. The water level of Fangqianlou, the representative hydrological station of Qiantang River, is compre- hensively analyzed and the hydrodynamic model for the river network of Qiantang River irrigated area in Hangzhou is estab- lished based on MIKE11. The simulation results of hydrodynamic model show that, under adverse conditions of weak water intake, both in present or in plan, channels transport water capability in river network makes all channels keep enough wa- ter depth to meet the guarantee rate of water intake over percent 90, with little influence on water level of near channels where other water intakes are.

关 键 词：钱塘江灌区 取水可靠性 水位分析 水动力模型 

分 类 号：TV213.2[水利工程—水文学及水资源]