Abstract

This article presents a novel automatic PSO-based back analysis method for mechanical parameters of block discrete element method. Incorporating particle swarm optimization (PSO) algorithm and recursive algorithm, a parameter back-analysis program is developed. Two cases, a laboratory test of columnar jointed rock mass and a typical landslide, are implemented for validation. The results show that the proposed method is feasible and accurate. As an automatic solution for parameter back analysis, this work has broad application prospects in geotechnical engineering.

中文翻译：

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分块离散元法与PSO算法自动反分析力学参数

摘要

本文提出了一种新的基于 PSO 的分块离散元法力学参数自动反分析方法。结合粒子群优化（PSO）算法和递归算法，开发了参数反分析程序。实施柱状节理岩体室内试验和典型滑坡两个案例进行验证。结果表明，所提出的方法是可行的和准确的。该工作作为参数反分析的自动化解决方案，在岩土工程中具有广阔的应用前景。