This paper presents a set of new required programmes written in format data using the built-in programming FISH language available in three-dimensional Fast Lagrangian Analysis of Continua software (FLAC^3D). These script data files were developed, to overcome difficulties noted during the nailed slope stability prediction. They established to analyse stability of general embankment slope cases under various soil nailing parameters design. To deal with 3D finite difference analysis results in terms of the factor of safety (FOS) and critical slip surface, both 2D finite difference and limit equilibrium (LEM) methods are also conducted. A comparison of the 3D and 2D results indicates that 2D analyses underestimate seriously stability predictions, notably in terms of the FOS. Therefore, it was concluded that, 3D analysis should be used as an alternative to the 2D analyses, even though it requires more time. Some useful conclusions are obtained from this work, which provides a good practice guidance for real life scenarios.

本文介绍了一组新的所需程序，使用 Continua 软件的三维快速拉格朗日分析 (FLAC ^{3D) 中}可用的内置编程 FISH 语言以格式数据编写）。这些脚本数据文件是为了克服在固定边坡稳定性预测过程中发现的困难而开发的。他们建立了分析各种土钉参数设计下的一般路堤边坡情况的稳定性。为了处理安全系数 (FOS) 和临界滑动面方面的 3D 有限差分分析结果，还进行了 2D 有限差分和极限平衡 (LEM) 方法。3D 和 2D 结果的比较表明，2D 分析严重低估了稳定性预测，特别是在 FOS 方面。因此，得出的结论是，尽管 3D 分析需要更多时间，但应将其用作 2D 分析的替代方法。从这项工作中得到了一些有用的结论，为现实生活场景提供了良好的实践指导。