港口航道与近海工程2024，Vol.61Issue(1)：87-92,6.DOI:10.16403/j.cnki.ggjs20240117
基于现场原位振动试验的风沙路基动力稳定性研究
Study on Dynamic Stability of Aeolian Sand Subgrade Based on Field In-Situ Vibration Test
朱孟伟 1陈华林 2曹强强 2周聪 2胡延杰2
作者信息
- 1. 中交华南交通建设工程有限公司,广东广州 510000||中交一航局第二工程有限公司,山东青岛 266071
- 2. 中交华南交通建设工程有限公司,广东广州 510000
- 折叠
摘要
Abstract
Based on eolian sand subgrade works of Menghua Railway MHTJ-1 section,six sections of eolian sand subgrade are selected as the testing sections.Dynamic stress on the subgrade under train load is simulated by adjusting the drop distance and acting time of the hammer of high-speed hydraulic rammer.The subgrade is equipped with dynamic soil pressure box,accelerator and other sensors so as to gather such parameters as dynamic displacement,cumulative displacement,vibration acceleration,vibration velocity and dynamic stress of the subgrade.In addition,the dynamic response is obtained through in-situ vibration test of the subgrade,and the dynamic stability of eolian sand subgrade is evaluated,which will provide technical reference for similar projects.关键词
风沙路基/原位振动试验/动力响应/动应力模拟/稳定性评价Key words
eolian sand subgrade/in-situ vibration test/dynamic response/dynamic stress simulation/stability evaluation分类
交通工程引用本文复制引用
朱孟伟,陈华林,曹强强,周聪,胡延杰..基于现场原位振动试验的风沙路基动力稳定性研究[J].港口航道与近海工程,2024,61(1):87-92,6.
