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统一的解决方案,不限制主动和被动地压的支墙,考虑到土壤形效应
Guihai Gao1, Jianxu Chen1, Bo Qian1
1School of Civil and Hydraulic Engineering, Xichang University, Xichang, Sichuan, China.
PloS one
|June 24, 2025
概括
本研究介绍了一种统一的解决方案,用于使用Duncan-Chang模型在支墙上的非极限主动和被动地压. 新方法为工程师提供了清晰的机械概念和实际应用.
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:
- 现有的理论很难将无限的活跃和被动地压与清晰的机械概念统一起来.
- 在支墙设计中,对地面压力计算的综合方法的需求至关重要.
研究的目的:
- 开发一种统一的解决方案,用于用于支墙的无限主动和被动地压.
- 建立一个明确的机械概念,以考虑墙壁移位进行地面压力计算.
主要方法:
- 利用Duncan-Chang应力-张力模型建立摩擦角度和墙壁位移比率之间的关系.
- 应用了水平层分析方法来得出地面压力的统一解决方案.
- 通过将结果与现有的理论和实验数据进行比较,验证了衍生式.
主要成果:
- 建议的统一解决方案可以在特定条件下被简化为兰金的解决方案.
- 证明墙壁推力在从被动状态到活性状态的过渡过程中非线性地减少,而由此产生的力的作用点在从被动状态到活性状态的过渡过程中非线性地增加.
- 显示了内部摩擦角度和墙壁推力和结果力作用点的变化范围之间的正相关性.
结论:
- 开发的理论公式为工程师提供了一个清晰的机械概念和实际适用性.
- 该研究为处理支墙设计和地面压力分析的工程师提供了重要的参考.
- 这些发现有助于更准确,更统一地理解地球压力理论.
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