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在无缝线路地段,特别是曲线地段施工顶进箱涵,必须定量分析,计算在各种不同气温条件下施工对无缝线路稳定的影响程度,以便采取相应的线路加固措施,确保行车安全。一、在无缝线路各区段进行顶涵施工时线路稳定情况 1、固定区箱涵位于固定区内的情况最多。根据无缝线路的特点,固定区内保持长轨稳定的重要因素是轨道框架刚度和道
The construction of jacking culverts in the sections of the seamless lines, especially the curved sections, must be quantitatively analyzed and the influence of the construction on the stability of the seamless lines under different temperature conditions should be calculated in order to adopt the corresponding line reinforcement measures to ensure the traffic Safety. First, the stability of the line during the construction of culverts in the various sections of the seamless line 1, the case of the fixed area culvert located in the fixed area the most. According to the characteristics of the seamless line, an important factor in maintaining the stability of the long track in the fixed area is the rigidity of the track frame and the road