In this paper, a full-scale model of Low Vibration Track was established and three working conditions were applied to a single bearing block; these include: vertical load at the end of the track slab, combination of horizontal and vertical load at the end of the track slab, and vertical load at the middle of the track slab. By applying four times static wheel load to the full-scale model, the relationship between the stress of the track structure and the load under different working conditions was investigated. The corresponding load values were obtained when the track slab and the bearing block reached the axial tensile strength of the concrete. Through the static load test, the weak position of the track structure was found, and the development trend of the crack was obtained. (1) Obtained the maximum stress of the concrete of the track slab at the corner of the bearing block, the maximal stress of the concrete of the track slab, the stress at the bottom of the bearing block, and the stress at the bottom of the bearing block under different working conditions. (2) The horizontal load of the train increased the force of the track slab concrete at the corners of the bearing block. (3) Compared the strain of different location of the track slab and different working conditions. (4) Observed the positions of slight crack and its development trend appeared on track slabs in different working conditions. (5) For the weak part of the track structure, it can be improved by measures such as increasing the thickness of the end of the track slab and arranging stirrups in the track slab around the support block. The research results provide reference for the design, application and maintenance of Low Vibration Track in the heavy-haul railway tunnel.

本文建立了低振动轨道的全尺寸模型，并将三种工况应用于单个轴承座；这些包括：轨道板端部的垂直荷载、轨道板端部的水平和垂直荷载的组合以及轨道板中部的垂直荷载。通过对全尺寸模型施加四倍静轮载荷，研究了不同工况下轨道结构应力与载荷的关系。当轨道板和承载座达到混凝土轴向抗拉强度时，得到相应的荷载值。通过静载试验，找到了轨道结构的薄弱部位，并得出了裂缝的发展趋势。(1) 求得承重块角部轨道板混凝土最大应力、轨道板混凝土最大应力、承重块底部应力、承重块底部应力不同工况下的轴承座。(2)列车水平荷载增大了承载座角部轨道板混凝土的受力。(3)比较了轨道板不同位置、不同工况下的应变。(4)观察不同工况下轨道板出现微裂纹的位置及其发展趋势。(5)对于轨道结构的薄弱部位，可通过增加轨道板端部厚度、在支撑块周围轨道板内设置箍筋等措施进行改善。研究成果为重载铁路隧道低振动轨道的设计、应用和维护提供参考。