Auto CAD内置“宏”在坝料颗粒分析中的运用

Application of AutoCAD internal “macro” in particle-size analysis of dam filling material

西龙池抽水蓄能电站下水库为沥青混凝土面板堆石坝。库区基础开挖的碎石土料要作为大坝填筑的次堆石区料,所以在开挖施工过程中,要进行大量的库区碎石土料源调查,进行干密度及颗粒分析试验,并绘制颗分曲线。手工绘制费时、费力。利用VBA编程分析,则十分便利。为此,专门开发了颗粒分析试验程序。对VBA开发的颗分程序进行了介绍。实际应用中,工作效率得到了提高,实现了颗粒分析试验计算与绘图的自动化。

The dam of the lower reservoir of Xilongchi pumped storage power plant is an asphalt concrete faced rockfill dam. The debris-soil material from the reservoir foundation excavation was required to be used as the filling material for the dam's secondary rockfill zone, so that in the process of the construction, an extensive investigation of debris-soil material sources in the reservoir area should be conducted, tests of dry density, analyses and tests of grain size should also be conducted, and gradation curves should be drawn. In general, drawing gradation curves would take a lot of time and labour, but application of a program formulated by using VBA would be quite convenient for grain size analysis. The program of grain size analysis and test was specially developed. This paper presents the grain size analysis program developed on the basis of VBA. In the practical application of the program, the working efficiency has been raised, realizing the automation of test, computation and drawing for grain size analysis.