将随机物质点方法应用于3D斜坡故障的应用
Guido Remmerswaal1,2, Philip J Vardon1, Michael A Hicks1
1Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, The Netherlands.
三维斜坡稳定性分析显示,3D故障比2D更广泛,提供更大的阻力. 引入材料强度趋势与深度导致流式故障,扩大故障区域.
科学领域:
- 地质技术工程 地质技术工程
- 计算力学 计算力学 计算力学
- 地震工程的工程是地震工程.
背景情况:
- 斜坡的稳定性对于基础设施安全至关重要.
- 了解故障机制对于风险评估至关重要.
- 数字方法提高了复杂的地质技术问题的分析.
研究的目的:
- 研究3D和空间可变性对斜坡失效过程的影响.
- 为了比较3D和2D坡度稳定性模拟.
- 分析材料强度配置文件对故障机制的影响.
主要方法:
- 使用随机物质点方法 (RMPM) 进行斜坡稳定性分析.
- 在自重和表面负荷下模拟了45度的理想斜率.
- 研究了异质材料强度概况,包括深度趋势.
主要成果:
- 3D故障呈现横向和向后扩散,比2D故障具有更高的阻力.
- 材料强度深度趋势诱导了类似流的故障过程.
- 流式故障扩大了故障区域,绕过了强材料区域.
结论:
- 与2D分析相比,3D效果提高了斜坡稳定性.
- 空间变化,特别是材料强度的深度趋势,显著改变了故障模式.
- 对于模拟复杂的3D斜坡失败行为,RMPM是有效的.
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