在SDMC模型中,具有圆柱形腔膨胀理论的柔性堆的侧面负载能力
Feng Gao1, Chengcong Hu1, Biao Huang1
1Wenzhou Lucheng District Urban Construction Center (Wenzhou Lucheng District Municipal Public Construction Center), Hangzhou, Zhejiang, 325005, P R China.
Scientific reports
|November 5, 2025
概括
这项研究引入了一种新的方法,用于计算灵活的堆横向负载能力,使用状态依赖的莫尔-库伦 (SDMC) 模型和空洞膨胀理论. 该方法准确地预测了侧向负载下的堆行为,通过模拟和离心机测试进行验证.
科学领域:
- 地质技术工程 地质技术工程
- 土壤力学 土壤力学
- 结构工程 结构工程
背景情况:
- 灵活的在许多土木工程项目中至关重要.
- 准确预测横向负载能力对于堆设计至关重要.
- 现有的方法可能无法完全捕捉复杂的土壤-堆相互作用.
研究的目的:
- 开发一种新的方法来计算柔性的侧面负载能力.
- 将状态依赖的莫尔-库伦 (SDMC) 模型与圆柱形腔膨胀理论集成.
- 为了提供一个强大的工具来预测堆载荷移位响应.
主要方法:
- 理想化土壤作为一个圆柱形的空洞,并应用空洞膨胀理论.
- 使用平衡和兼容性条件开发可支配的部分微分方程 (PDEs).
- 解决PDEs以获得单调的p-y曲线 (弹性,弹性,关键).
- 使用有限差异法来解决偏移平衡微分方程.
- 通过有限元法 (FEM) 模拟和离心机测试数据验证该方法.
主要成果:
- 提出的方法成功地推导出单调的p-y曲线.
- 数字解决方案准确地捕捉了弹性,弹性塑料和关键的土壤行为.
- 该方法有效地预测了堆的单调负载位移反应.
- FEM模拟和离心机测试数据证实了该方法的准确性.
结论:
- 集成的SDMC模型和空洞膨胀理论为堆分析提供了有效的框架.
- 开发的方法准确地预测了堆载荷测试中的关键现象.
- 这种方法提高了侧面负载下的弹性堆设计的可靠性.
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