无碴宽轨枕在站场上铺设,许多铁路局都在推广。但在运营线区间上,不封锁线路施工的还不多。宝成线神龙河隧道整体道床两端过渡段,用无碴宽轨枕和热沥青固结道床改善过渡,是其中一例。 一 概况 宝成线神龙河隧道长70米,位于300米小半径曲线和3.2‰下坡道上。1973年工务段为整治隧道内翻浆冒泥,把碎石道床改作整体道床。严重的翻浆冒泥病害虽然解决了,但由于 Ballastless sleepers are laid on the yard and many railroad administrations are promoting them. However, in the operation line interval, not blockade line construction is not much. Baocheng line Shenlonghe tunnel ballast at both ends of the transitional section of the whole, with ballastless wide sleepers and hot asphalt consolidation bed to improve the transition, is an example. An overview Baocheng line Shenlong River Tunnel 70 meters long, located in the 300-meter radius curve and 3.2 ‰ downhill. Works for the renovation of the tunnel in 1973 to mud dumping, the ballast bed for the overall track bed change. Although the serious problem of mud and mud was solved,