【摘要】 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更多还原

【Abstract】 According to the theory of equivalent resistance, the expand and contract displacement of closure rail, the additional force of stock rail, the point displacement, and the shear force of bolts of spacing resticting device at heel were calculated and analyzed in the paper for the 60 kg/m rail, No.12 continuous welded turnout with rigid frog. The results of this paper can be the theoretical reference for installation design and maintenance of the CWR turnout.更多还原