| 高速铁路沥青混凝土防水结构界面安全性分析? |
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| 引用本文： | 张新冈,蔡德钩,张千里,闫宏业,李泰灃,董涛.高速铁路沥青混凝土防水结构界面安全性分析?[J].防灾减灾工程学报,2020(1):51-55. |
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| 作者姓名： | 张新冈 蔡德钩 张千里 闫宏业 李泰灃 董涛 |
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| 作者单位： | 中国铁道科学研究院，北京 100081;中国铁道科学研究院集团有限公司 铁道建筑研究所，北京 100081；中国铁道科学研究院集团有限公司 高速轨道技术国家重点实验室，北京 100081;东南大学交通学院，江苏 南京 210096 |
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| 基金项目： | 中国铁路总公司科技研究发展计划课题（2017G008-B）资助 |
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| 摘 要： | 为了研究高速铁路无砟轨道底座板混凝土与全断面沥青混凝土封闭结构层之间抗滑移能力能否满足高速铁路行车安全,通过现场试验以及大型通用有限元分析软件ABAQUS对该界面进行对比分析。试验结果表明:现场试验最大剪切荷载为35 kPa,仿真计算结果最大剪切荷载为37 kPa,两者数值基本相同,且现场试验与仿真模拟的剪应力-位移曲线整体趋势一致。得到了满足高速铁路行车安全的结论,且为高速铁路全断面沥青混凝土防水结构设计提供了理论依据。
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| 关 键 词： | 高速铁路 全断面防水结构 沥青混凝土 界面稳定 剪切荷载 |
Interface Safety Analysis of Asphalt Concrete Waterproof Structure in High Speed Railway |
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| ZHANG Xingang,CAI Degou,ZHANG Qianli,YAN Hongye,LI Taifeng,DONG Tao.Interface Safety Analysis of Asphalt Concrete Waterproof Structure in High Speed Railway[J].Journal of Disaster Prevent and Mitigation Eng,2020(1):51-55. |
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| Authors: | ZHANG Xingang CAI Degou ZHANG Qianli YAN Hongye LI Taifeng DONG Tao |
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| Abstract: | In order to study whether the anti-slip ability between the concrete of ballastless track base plate and the closed structure layer of full-section asphalt concrete can satisfy the running safety of high-speed railway. The full-scale field testing and the finite element analysis software ABAQUS were used to analyze the interface. The test results show that the maximum shear stress of full-scale test is 35 kPa, and the maximum shear stress of simulation calculation is 37 kPa. The two values are basically the same, and the overall trend of full-scale test and the shear stress-displacement curve of the simulation are consistent. The conclusion satisfied the safety of high-speed railway operation and provided the theoretical basis for the design of the whole section asphalt concrete waterproof structure of high-speed railway. |
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