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中文摘要：
从圆柱的连接岩石团的地质的结构，一个视觉模型被编程基于 Voronoi 图的算法在软件 Autocad 建立。而且，把 Autocad 模型变换成 3DEC 的一个程序(3-dimensional 不同元素代码) 模型被开发，并且一个数字模型在 3DEC 被建立。而且，圆柱的连接岩石群众的 triaxial 压缩测试的结果数字地被模仿。加快(代表性的元素体积) 规模被学习，并且结果证明 REV 尺寸是 3 m 瑳捩瀠敲獳牵？
英文摘要：
From the geological structure of the columnar jointed rock mass, a visual model was established in software AUTOCAD by programming based on the algorithm of the Voronoi diagram. Furthermore, a program to convert the AUTOCAD model into 3DEC （3-dimensional distinct element code） model was developed, and a numerical model was established in 3DEC. Moreover, the results of triaxial compression tests of columnar jointed rock masses were simulated numerically. The REV （representative element volume） scale was studied, and the result shows that the REV size is 3 m ×3 m. The proposed approach, the established model and the numerical simulation were applied to study the macro-mechanical properties and the equivalent strength parameters of the columnar jointed rock mass. The numerical simulation results are in good accordance with the in-situ test results.
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