聚氨酯固化道床线路运营与维护

Operation and Maintenance of Lines with Polyurethane Cured Railway Bed

自2009年以来,聚氨酯固化道床在我国的高速、重载和客货混运线路上已铺设近7 km,运营中的固化道床轨道结构状态良好,无维修或少维修,验证聚氨酯固化道床技术的应用对于环境保护、资源节约和工务维修具有重要意义。聚氨酯固化道床技术在我国已具备推广应用的条件,研究固化道床的维修技术,对于固化道床的推广使用、保证线路运营安全、发挥聚氨酯固化道床的优势,具有重要意义。

Since the beginning of 2009, polyurethane-cured railway bed has been applied to high-speed lines, heavy-haul railway lines and mixed-transport lines with a total mileage of 7 km. The bed promises good track structure amid operation and it requires very little or even no maintenance. The significance of such curing technology has been verified in regard to environmental protection, resource saving and track maintenance. The technique is now ripe for large-scale industrial application; however it is crucial to proceed with the study on cured bed maintenance, so as to popularize the technique, improve operation safety and tap the advantages of polyurethane-cured bed.