有砟轨道混凝土轨枕枕下弹性垫板技术研究  

Study on Elastic Pads under Concrete Sleepers of Ballast Track

作　　者：朱超 张正超 尤瑞林 ZHU Chao;ZHANG Zhengchao;YOU Ruilin(Haolebaoji-Ji'an Railway Co Ltd,Beijing 100073,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]蒙西华中铁路股份有限公司,北京100073 [2]中国铁道科学研究院集团有限公司铁道建筑研究所,北京100081

出　　处：《中国铁路》2020年第2期116-121,共6页China Railway

基　　金：蒙西华中铁路股份有限公司科技研究开发计划项目（MHHTZX〔2018〕0023）;中国铁道科学研究院集团有限公司科技研究开发计划项目（2018YJ043）

摘　　要：弹性轨枕是指在混凝土轨枕底部粘贴弹性垫板而构成具有一定弹性的轨枕,弹性轨枕结构对于轨道的刚度均匀化、减少道床应力、减轻道床及下部基础的冲击效应具有良好效果。研究总结奥地利、法国、英国、西班牙等国外常用的枕下弹性垫板技术方案和我国前期研究设计的枕下弹性垫板技术方案,分析不同方案在连接方式、成形工艺以及弹性垫板底表面设计等方面各自特点和不足。通过对国内外枕下弹性垫板技术方案的总结分析,提出枕下弹性垫板的设计应综合考虑产品性能和生产制造便利性、弹性轨枕的弹性和稳定性应统一设计的理念,相关建议可为我国枕下弹性垫板技术的深化研究提供借鉴。Booted sleeper refers to a kind of sleeper with certain elasticity,basically a concrete sleeper with a rubber pad at its bottom.The structure of booted sleeper is good for keeping the uniformity of track rigidity,and reducing ballast stress and the impact effect of ballast bed and sub-foundation.This paper studies and summarizes the technical schemes for rubber pad of booted sleeper commonly used in Austria,France,the UK,Spain and other countries,and the technical schemes for rubber pad of booted sleeper designed earlier in China,and looks into the characteristics and shortcomings of different schemes in connection mode,forming process and the design of the bottom surface of the rubber pad.Based on the summary and analysis of the technical schemes for rubber pad of booted sleeper at home and abroad,it is proposed that the design of the rubber pad should take into account the products’performance and the convenience of production and manufacturing,and the elasticity and stability of the elastic sleeper should both be given consideration during design.The relevant suggestions presented here can serve as a reference for further study of rubber pad of booted sleeper in China.

关 键 词：有砟轨道 弹性轨枕 弹性垫板 技术方案 

分 类 号：U213.3[交通运输工程—道路与铁道工程]