岩土工程中常用的数值分析方法各有其优越性和局限性。对地质条件复杂 ,既有连续性又有非连续性的实际问题 ,为求得更好的结果 ,可采用多种数值方法耦合模拟。介绍了一些耦合算法的原理和编程方法 ,详述了有限元与DDA(不连续变形分析 )的耦合算法 ,并给出了计算实例 ,证明了耦合方法的优越性。 Geotechnical engineering commonly used numerical analysis methods have their advantages and limitations. For complex geological conditions, both continuous and discontinuous practical problems, in order to obtain better results, a variety of numerical methods can be coupled simulation. The principles and programming methods of some coupling algorithms are introduced. The coupling algorithm between finite element and DDA (Discontinuous Deformation Analysis) is described in detail. The calculation example is given and the superiority of the coupling method is proved.