Described the principle of 2 - D discontinuous deformation analysis ( DDA ) and the numerical model of bolt.

阐述了二维非连续变形分析方法 ( DDA ) 与锚杆数值模型的基本原理,开发了考虑锚杆单元的DDA程序.

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Traditionally discontinuous deformation analysis ( DDA ) method adopts linear displacement mode, which has many defects.

传统的非连续变形分析法 ( DDA ) 采用线性位移模式存在诸多缺陷.

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An approach for modeling rock crack propagation using discontinuous deformation analysis DDA method is presented.

提出一种用非连续变形分析方法模拟岩石裂纹扩展的方法.

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The general principle of DDA, discontinuous deformation analysis, and the shear strength reduction are discussed simply.

介绍了非连续变形分析(DDA)方法和强度折减法的基本理论, 提出了基于DDA的强度折减法求土坡安全系数的方法.

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