| 高原大风地区双块式无砟轨道伤损现状及主要特征 |
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| 引用本文： | 靳昊,张保卫,易忠来,戚志刚,李化建,黄法礼.高原大风地区双块式无砟轨道伤损现状及主要特征[J].铁道建筑,2019(3):100-103. |
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| 作者姓名： | 靳昊 张保卫 易忠来 戚志刚 李化建 黄法礼 |
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| 作者单位： | 中国铁道科学研究院集团有限公司铁道建筑研究所;中国铁路兰州局集团有限公司 |
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| 基金项目： | 中国铁路总公司科技研究开发计划(2015G005-A;2017G002-B);中国铁道科学研究院基金(2015YJ042;2017YJ169) |
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| 摘 要： | 以兰新高速铁路作为研究对象,总结出高原大风地区双块式无砟轨道伤损类型主要为道床板裂缝、轨枕离缝、道床板上拱、支承层混凝土粉化和聚氨酯嵌缝材料伤损,分析其伤损特点及形成原因。同时,对聚氨酯嵌缝材料离缝和无砟轨道道床板裂缝进行了跟踪观测,结果表明,聚氨酯嵌缝材料离缝病害仍在发展,而桥梁段、路基段和隧道段无砟轨道道床板裂缝病害已趋于稳定。
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| 关 键 词： | 高原大风地区 双块式无砟轨道 伤损观测 道床板裂缝 聚氨酯嵌缝材料离缝 |
Damage Status and Main Features of Double-block Ballastless Track in Plateau Gale Area |
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| JIN Hao,ZHANG Baowei,YI Zhonglai,QI Zhigang,LI Huajian,HUANG Fali.Damage Status and Main Features of Double-block Ballastless Track in Plateau Gale Area[J].Railway Engineering,2019(3):100-103. |
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| Authors: | JIN Hao ZHANG Baowei YI Zhonglai QI Zhigang LI Huajian HUANG Fali |
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| Institution: | (Railway Engineering Research Institute,China Academy of Railway Sciences Group Co. Ltd. ,Beijing 100081,China;China Railway Lanzhou Bureau Group Co. Ltd. ,Lanzhou Gansu 730000,China) |
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| Abstract: | Taking Lanzhou-Wulumuqi high speed railway as a research object,it was summarized that the main damage types of double-block ballastless track in plateau gale area were slab crack,sleeper gap,slab arch,supporting layer concrete pulverized and polyurethane joint material damage,and the characteristics and causes of damages were analyzed.M eanw hile,the gaps of polyurethane joint material and slab cracks were observed.The results show that the gaps of polyurethane joint material are still increasing,but the slab cracks in bridge section,subgrade section and tunnel section are becoming stable. |
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| Keywords: | Plateau gale area Double-block ballastless track Damage observation Slab crack Gap of polyurethane joint material |
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