高速铁路无砟轨道超大调整量扣件研发  

Research and Development of Super Large Adjustment Fasteners for Ballastless Track of High Speed Railway

作　　者：肖俊恒 李子睿 张晟 蔡世生 李彦山 张欢 吴玥 XIAO Junheng;LI Zirui;ZHANG Sheng;CAI Shisheng;LI Yanshan;ZHANG Huan;WU Yue(Beijing Tieke Shougang Rail Technology Co.Ltd.,Beijing 102206,China;Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]北京铁科首钢轨道技术股份有限公司,北京102206 [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：《铁道建筑》2023年第8期8-11,共4页Railway Engineering

基　　金：中国铁道科学研究院集团有限公司基金(2021YJ175)。

摘　　要：为解决地震造成的高速铁路无砟轨道形位偏移过大的问题,在既有WJ-8型扣件基础上,以提高扣件调整量和结构稳定性、方便调整为原则,研发了能够实现超大调整量的承轨台可调式WJ-8型扣件,给出了单股钢轨左右位置、钢轨高低位置不同调整量下的扣件配置,并进行了扣件组装性能试验。结果表明:采用承轨台可调式WJ-8型扣件系统,单股钢轨左右位置最大调整量可达±150mm,钢轨高低位置调整量为-24-+100 mm;扣件组装性能和三联套管抗拔能力均满足线路运营要求。承轨台可调式WJ-8型扣件系统已在兰新(兰州—乌鲁木齐)客运专线试用,效果良好。In order to solve the problem of excessive deviation in the shape and position of ballastless tracks on high speed railways caused by earthquakes,based on the existing WJ-8 type fasteners,and with the principle of improving the adjustment amount and structural stability of the fasteners,and facilitating adjustment,an adjustable WJ-8 type fastener for the support rail bed was developed,which can achieve super large adjustment amount.The fastener configuration under different adjustment amounts of the left and right positions and the high and low positions of the single steel rail were provided,and the fastener assembly performance test was conducted.The results show that with the use of an adjustable WJ-8 fastening system on the support rail bed,the maximum adjustment of the left and right positions of a single strand of steel rail can be±150 mm,and the adjustment of the high and low positions of the steel rail can be-24-+100 mm.The assembly performance of fasteners and the pull-out resistance of the triple casing meet the requirements of line operation.The adjustable WJ-8 type fastening system for the support rail bed has been tested on the Lanzhou-Urumqi passenger dedicated line and has achieved good results.

关 键 词：高速铁路 无砟轨道 扣件系统 试验研究 超大调整量 铁承轨台 

分 类 号：U213.53[交通运输工程—道路与铁道工程]