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利用当量阻力计算理论，分析计算了目前使用的６０ｋｇ／ｍ钢轨、１２号固定辙叉无缝道岔在不同铺设条件下的里轨伸缩位移、基本轨附加温度力、尖轨尖端位移、限位器螺栓剪力等，为该类型提速道岔在跨区间无缝线路的铺设和养护维修提供一些理论依据
Based on the theory of equivalent resistance calculation, the telescopic displacements of the rails, the temperature of the basic rail, the tip of the tip rail and the positioner of the 60kg / m rail and the fixed frog of the 12th rail are analyzed and calculated under different laying conditions. Bolt shear and so on, providing some theoretical basis for the laying and maintenance maintenance of the cross-section seamless line