高速铁路无砟轨道防排水设计

Waterproof and Drainage Design of Ballastless Track for High Speed Railway

基于高速铁路无砟轨道的高平顺性、高稳定性和强耐久性等特点,结合已有的防排水研究成果和工程经验,总结了高速铁路无砟轨道防排水设计的主要方法。高速铁路无砟轨道防排水可以从路基地面排水、路基地下排水和轨道自身结构排水进行设计。路基地面排水、地下排水应根据实际工程和规范修筑相关的排水设施进行设计;轨道自身结构排水可以从横坡排水和线间排水进行设计。最终将各个排水设施连接形成完整、通畅的排水系统,及时排除轨道积水,提高路基的强度和稳定性,保证列车运行的平顺性和安全性。

Based on the characteristics of high-speed rail,such as high ride comfort,high stability and strong durability,combined with the existing research results and engineering experience,the main methods of waterproof and drainage design for ballastless track of high speed railway were summarized.The waterproofing and drainage of ballastless track in high speed railway can be designed from road base surface drainage,subgrade underground drainage and track self structure drainage.Subgrade ground drainage and underground drainage should be built according to actual projects and specifications;track self structure drainage can be designed from horizontal slope drainage and inter line drainage.Finally,all drainage facilities will be connected to form a complete and unobstructed drainage system,and timely exclude track water,improve the strength and stability of the roadbed,ensure the ride comfort and safety of the train.