In this study, a full-scale model of a railway track structure using an asphalt concrete trackbed with concrete slab panel (ACTSP) is developed. Slab panels are very important to develop asphalt concrete (AC) track system for minimizing the roadbed pressure due to the trainload and reducing the plastic deformation of the AC. The purpose of this study is to analyze the performance of the subgrade and the AC trackbed under different AC layer concepts. Static and dynamic loads were applied to the whole track system by using the Railway Loading System (RLS). Based on the data acquisition and instrument systems, the displacement of the rail/sleeper, the strain at the bottom of the asphalt concrete, and the pressure characteristics of each subgrade was measured. The pressure distribution efficiency along the track system was also investigated. Based on the full-scale test results, the application of asphalt concrete trackbed is very promising since this technology will noticeably mitigate the impact of pressure on the track system from the trainload. The effectiveness is more prominent in railway structures having an AC trackbed thickness of around 35 cm. In this condition, the dynamic train load results reveal that plastic deformation and tensile strain of rail and panel can substantially be reduced up to 20 and 50%, respectively, compared to the condition of 20 cm trackbed thickness. The results also indicate that the pressure distribution along the panel is improved by using a thicker AC layer roadbed concept. Overall, the findings in the research suggest that asphalt concrete trackbed with slab panel is a novel technology that will reinforce the durability of track components and prolong the service life of railway track structure.

在这项研究中，建立了一个铁路轨道结构的全尺寸模型，该模型使用带混凝土面板的沥青混凝土路基（ACTSP）。平板面板对于开发沥青混凝土（AC）轨道系统非常重要，该系统可最大程度地降低因列车载荷引起的路基压力并减少AC的塑性变形。这项研究的目的是分析不同交流层概念下路基和交流轨道床的性能。通过使用铁路装载系统（RLS）将静态和动态载荷应用于整个轨道系统。基于数据采集和仪器系统，测量了轨道/轨枕的位移，沥青混凝土底部的应变以及每个路基的压力特性。还研究了沿轨道系统的压力分布效率。根据全面的测试结果，沥青混凝土履带板的应用非常有前途，因为该技术将显着减轻列车荷载对轨道系统压力的影响。在具有约35 cm的AC履带板厚度的铁路结构中，这种效果更为突出。在这种情况下，列车的动态载荷结果表明，与20 cm轨道床厚度的情况相比，轨道和面板的塑性变形和拉伸应变分别可以分别降低多达20％和50％。结果还表明，通过使用较厚的AC层路基概念可以改善沿面板的压力分布。总体，