HELIOS-Stack:一种新的混合集体学习方法,用于在岩石不连续性分析中精确预测关节粗度系数
Ibrahim Haruna Umar1,2, Hang Lin1, Hongwei Liu1
1School of Resources and Safety Engineering, Central South University, Changsha 410083, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
一种新的混合组合学习方法 (HELIOS-Stack) 准确地预测了岩石质量的关节粗度系数 (JRC). 这种先进的技术改善了地质表面分析和岩石力学理解.
科学领域:
- 地质技术工程 地质技术工程
- 岩石机械学 岩石机械学
- 机器学习应用 机器学习应用
背景情况:
- 准确的关节粗度系数 (JRC) 估计对于岩石质量的机械行为分析至关重要.
- 现有的预测模型与复杂的地质表面形态学作斗争.
- 目前方法的局限性需要共同研究中心先进的预测技术.
研究的目的:
- 开发一种先进的混合组合学习方法 (HELIOS-Stack) 以提高JRC的预测能力.
- 整合多个机器学习模型和统计分析,以获得更高的准确性.
- 建立一个新的地质表面表征的基准.
主要方法:
- 实施了混合组合方法,结合了随机森林,XGBoost,LightGBM,支持向量回归和多层感知器.
- 使用一个LightGBM元学习器作为最终估计器.
- 分析了112个岩石样本,使用了8个统计参数,并对12个经验模型进行了评估.
主要成果:
- HELIOS-Stack实现了高精度,其 R2 值为 0.9884 (训练) 和 0.9769 (测试).
- 与其他模型相比,在诸如平均绝对误差和对应指数等指标上表现出卓越的性能.
- 确定了三个不同的粗度集群:高 (JRC 16-20),中等 (JRC 8-15) 和光滑 (JRC 0.4-7).
结论:
- 赫利奥斯-斯塔克 (HELIOS-Stack) 方法显著提升了岩石断层特性.
- 这种方法在JRC对地质应用的预测中提供了前所未有的精度.
- 预计将在地质工程,岩石质量稳定性和地质建模中进行转化应用.
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