埋藏的压力管道的动态反应,当受到横向冲击负荷:实验研究实验研究
Ruobing Wu1, Kai Zhuang1, Yuchao Yang2
1Shandong Key Laboratory of Civil Engineering Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China.
Materials (Basel, Switzerland)
|March 27, 2025
概括
压力管道比不压力管道更好地抵抗冲击,土壤的刚性和埋藏深度会影响管道的行为和冲击力. 在刚性土壤中更深地埋葬可能会意外地增加冲击力.
科学领域:
- 地质技术工程 地质技术工程
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
背景情况:
- 管道是易受冲击负荷影响的关键基础设施.
- 了解不同埋葬环境中的冲击下的管道行为对于安全至关重要.
研究的目的:
- 研究压力管道在冲击负载下的动态反应.
- 分析埋葬深度,土壤类型和内部压力对管道冲击行为的影响.
主要方法:
- 在管道上进行了60次掉落重量冲击测试.
- 使用高速摄像机和传感器来获取数据.
- 多样化的土壤类型,埋葬深度和内部压力.
主要成果:
- 管道变形随着埋葬深度和土壤刚度的增加而减少.
- 加压管道的塑性变形比不加压管道的塑性变形少.
- 较高的土壤刚度和内部压力通常会增加峰值冲击力,但在更深,更硬的土壤中则例外.
结论:
- 土壤的硬度和内部压力显著影响管道的抗冲击能力.
- 埋葬深度对冲击力的影响是复杂的,并且取决于土壤.
- 调查结果有助于优化管道设计和保护策略,以提高安全性和可靠性.
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