基于最小潜在能量原理的隔膜壁泥沟的全球稳定性安全因子的三维计算方法
Lin Wang1,2, Guojian Shao1, Jingbo Su3
1Hohai University, College of Mechanics and Engineering Science, Nanjing 211100, Jiangsu, China.
Anais da Academia Brasileira de Ciencias
|May 14, 2025
概括
本研究引入了一个3D模型,以准确评估膜壁泥沟的全球稳定性安全因子 (GSF). 新方法使用四分之一圆形滑动表面,提供更现实的GSF计算,以提高工程安全性.
科学领域:
- 地质技术工程 地质技术工程
- 土木工程 土木工程是指土木工程.
- 地震工程的工程是地震工程.
背景情况:
- 在隔膜壁泥沟分析中,传统的3D滑动表面假设导致高估了全球稳定性安全因子 (GSF).
- 这种不准确性在评估深度挖掘支持系统的稳定性方面存在风险.
研究的目的:
- 开发一个更准确的3D计算模型,用于GSF的隔膜壁泥沟.
- 提出新的基于能源的方法来评估沟稳定性.
- 通过工程案例研究验证拟议的方法.
主要方法:
- 建立了一个3D计算模型,假设四分之一的圆形滑动表面和质量.
- 提出了一种基于最小潜在能量原理的3D能源方法.
- 开发了一种使用等效沟长度的3D等效能源方法.
主要成果:
- 与传统方法相比,3D模型和能源方法提供了更合理的GSF值.
- 对十个工程案例的验证证实了模型的正确性和方法的合理性.
- 七个设计示例的灵敏度分析揭示了GSF对各种参数的依赖.
结论:
- 拟议的3D计算方法,特别是3D等效能源方法,为泥沟稳定性评估提供了更高的准确性和工程适用性.
- 这些方法解决了先前模型的局限性,导致更可靠的安全因子计算.
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