静库容计算方法的比较分析

Contrast and Analysis of Reservoir Storage Calculation Methods

库容计算常用的基本方法有数字高程模型(DEM)法、方格网法、断面法、等高线法等4种。在实际应用中,由于水下地形的多样性、复杂性,同一水域采用不同的计算方法其库容量均有不同程度的差异。基于此,对静库容计算的4种方法的基本原理、数学模型进行了讨论,并结合实例对4种方法的适用情况、所需条件及精度情况进行了比较分析,认为数字高程模型(DEM)法在静库容计算中更具有优势。

There are DEM, grid, transect, and contours four methods for reservoir storage calculation in civil engineering. On account of the diversity and complexity of underwater topography, different calculation methods adopted in the same waters have some differences in the practical engineering applications. Therefore, it is vital to which calculation method can be utilized, which math model should be adopted, and what the accuracy of reservoir storage calculation is. This article will deal with the contrast and analysis in advantages and disadvantages of math model and its applications, but DEM has the superiority in the four methods, based on the basic principle of above four methods. Combining with the practical example, the article else will discuss their application range, condition and precision theoretically.