枝城～城陵矶河段冲刷量分析  

Analysis of erosion volume in Zhicheng-Chenglingji river

作　　者：郭小虎[1] 李义天[2] 邓金运[2] 渠庚[1] 

机构地区：[1]长江科学院河流研究所,武汉430010 [2]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《水力发电学报》2011年第5期101-105,113,共6页Journal of Hydroelectric Engineering

基　　金：长江科学院博士启动项目(CKSQ2010073);水利部前期规划项目(QQ0871/HL15);水利部公益性行业专项经费项目(200901004);国家自然科学基金资助项目(10802013)

摘　　要：针对三峡水库蓄水以来输沙量与地形法计算所得枝城～城陵矶河段冲刷量相差太大,导致实测资料很难使用的问题,利用蓄水前的实测数据建立了枝城～城陵矶河段水位变化值与该河段冲淤量的相关关系,并类比分析了2003-2007年期间两种方法测量成果。如果以水位下降值来判断该河段冲刷量,则输沙量法的成果更为合理。As calculations of the erosion volume in the Zhicheng-Chenglingji reach influenced by operation of the Three Gorges reservoir by the sediment-transport balance method and the topographic method based on the measured data are much different,how to use these measured data of this reach becomes a difficult issue.To solve this problem,this paper establishes a correlation relationship between the water level variation and erosion-deposition volume measured before operation of the reservoir,and analyzes the difference of the two methods for the period of 2003-2007.The results show that the sediment-transport balance method is better.

关 键 词：水利工程 分析 相关关系 地形法 输沙量法 

分 类 号：TV147.3[水利工程—水力学及河流动力学]