CAJ | 학술논문

为提高水库库容及泥沙冲淤量的计算精度，满足水库调度和工程管理的需要，针对以往多支流水库在划分汇流区干支流区域时存在的物理概念不明确、计算精度较低等问题，在大量原型观测数据分析的基础上，提出了分水曲面法的干支流区域划分的概念和作业方法，实现了在三维环境中对水库干支流区域的划分。小浪底水库应用结果表明：该方法空间概念清晰，能够真实反映库区冲淤变化和水位变化对汇流区库容的影响，大大提高水库库容和泥沙冲淤量的计算精度。同时，为水库调度和水库泥沙运动规律研究提供了直观的地形边界条件和数字高程模型。
위제고수고고용급니사충어량적계산정도，만족수고조도화공정관리적수요，침대이왕다지류수고재화분회류구간지류구역시존재적물리개념불명학、계산정도교저등문제，재대량원형관측수거분석적기출상，제출료분수곡면법적간지류구역화분적개념화작업방법，실현료재삼유배경중대수고간지류구역적화분。소랑저수고응용결과표명：해방법공간개념청석，능구진실반영고구충어변화화수위변화대회류구고용적영향，대대제고수고고용화니사충어량적계산정도。동시，위수고조도화수고니사운동규률연구제공료직관적지형변계조건화수자고정모형。
In order to improve the reservoir storage and sedimentation calculation precision and meet the needs of reservoir operation and project management,according to the problems of dividing the confluence area,that physical concepts are not clear,the calculation results are of low accu-racy,based on the analysis of a large number of prototype observation data,this study introduced a new method of dividing main river and tributa-ries by 3D curved surfaces,and its concept and method of operation,realized the division of main river and tributaries on the reservoir in a 3D envi-ronment. The application results show that it has clear space conception,reflects the impact of water level changes on the confluence area capacity, greatly improves the precision of reservoir storage and sedimentation volume calculation,and at the same time provides the boundary conditions and terrain digital elevation model for reservoir operation and the study of sediment movement of reservoir.