三峡工程坝区漂污运移规律及治理措施初步研究  

Tentative study on drifting property of drifters and its solving measures in dam area of Three Gorges Project

作　　者：李学海[1] 杨伟[1] 文发清[1] 

机构地区：[1]长江科学院宜昌科学研究所,湖北宜昌443002

出　　处：《长江科学院院报》2000年第1期5-8,共4页Journal of Changjiang River Scientific Research Institute

摘　　要：对三峡水利枢纽坝前漂污物的运移特性、分布规律及其影响因素及治理漂污的工程措施进行了研究。研究表明 :库区漂污物的分布及其运移规律与库区河势、水流流态、库水位、来流量及三峡电站的调度方式等因素有关。在各级水位、流量条件下 ,坝前漂污滞留量分布的基本态势为“右多左少”。通过调度运行 ,可以改变漂污物在坝前的分布情况 ,但基本态势不变。三峡枢纽库区漂污治理 ,应采取“以捞为主”的思路 ,以根本解决三峡及葛洲坝两大枢纽的漂污问题。研究发现 :在坝前及坝区河段可以选择到较为理想的地段和区域建立滞漂、捞漂区 ,导漂。This paper analyzes the drifting and distribution properties, its influence factors of drifters before the dam of the Three Gorges Project and the engineering measures to solve this problem.The results demonstrate that:the distribution and drifting regularity in the reservoir area are related to the river regime,the flow pattern,the water level of the reservoir,the incoming discharge and the operation mode of the power plant,etc.Under the conditions of varieties of water level and flowing discharge,the primary state of the distribution of the drifters blocked in front of the dam is “much in right and little in left”.proper plant operation schedule can influence the distribution of the drifters in front of the dam,but the primary state remains unchanged.To finally solve the driftier problem of three Gorges Project together with the Gezhouba Project,thread of “dredging being the principal method”must be adopted in settling the drifter problem in the reservoir areas.In our research,we also found out fairly good places upstream the dam which can be used for blocking and dredging up drifters,where the direct dredging up floating materials in reservoir area can achieve good effects.

关 键 词：三峡坝区 漂污运移规律 治理措施 整体模型 

分 类 号：TV131.613[水利工程—水力学及河流动力学]