铁道科学与工程学报2017，Vol.14Issue(11)：2333-2338,6.
客货共线无砟轨道扣件垂向力现场测试与分析
Field test and analysis of vertical force of fastener for slab track with passenger and freight traffic
摘要
Abstract
The increase of axle load of freight vehicle for railways with passenger and freight traffic will certainly lead to an obvious increase of train load. Since the elasticity of slab track is only provided by fastening system, the vertical force of fastener for slab track with passenger and freight traffic is necessary to be tested. In order to measure the vertical force of fastener for slab track with passenger and freight traffic, two field tests at Caijia station of Suining-Chongqing railway and at Yuzui No.2 tunnel of Chongqing–Huaihua railway were carried out by applying the Donghua dynamic data acquisition system, using the force testing plate made by rail pads of WJ-7. The experimental data was used and compared with the results by China Academy of Railway Sciences. The results show that: the force testing plate has the advantages of simple manufacture, convenient installation and good reliability of test results; the fastener vertical force caused by freight vehicles is about 1.5 times of passenger traffic, and its distribution is more discrete, which is easily to be affected by the irregularity excitations and the wheel flat; according to the field test, the distribution of fasteners vertical force will be clear, which has important guiding significance to the design and research of fastener system for slab track with passenger and freight traffic.关键词
客货共线/测力垫板/扣件垂向力/现场测试Key words
railways with passenger and freight traffic/force testing plate/the vertical force of fastener/field test分类
交通工程引用本文复制引用
徐家铎,任娟娟,闫亚飞,凤翔,邓世杰..客货共线无砟轨道扣件垂向力现场测试与分析[J].铁道科学与工程学报,2017,14(11):2333-2338,6.基金项目
中国铁路总公司科技研究开发计划资助项目(2015G001-F) （2015G001-F）
国家自然科学基金资助项目(51578472,U1434208) （51578472,U1434208）
