瓦日铁路湿陷性黄土路基隐伏病害检测及整治技术

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英文篇名：Techniques of Detection and Treatment for Hidden Defects in Collapsible Loess Subgrade of Watang-Rizhao Railway 作者：柴金飞 ; 马伟斌 ; 马超锋 ; 赵鹏 ; 牛亚彬 ; 常凯 ; 安哲立 ; 单宇 英文作者：CHAI Jinfei;MA Weibin;MA Chaofeng;ZHAO Peng;NIU Yabin;CHANG Kai;AN Zheli;SHAN Yu;Railway Engineering Research Institute,China Academy of Railway Sciences;State Key Laboratory for Track Technology of High Speed Railway,China Academy of Railway Sciences; 关键词：路基工程 ; 重载铁路 ; 现场试验 ; 湿陷性黄土 ; 高压旋喷桩 ; 挤密注浆 英文关键词：Subgrade engineering;;Heavy haul railway;;Field test;;Collapsible loess;;High pressure jet grouting pile;;Compaction grouting 中文刊名：TDJZ 英文刊名：Railway Engineering 机构：中国铁道科学研究院铁道建筑研究所;中国铁道科学研究院高速铁路轨道技术国家重点实验室; 出版日期：2018-01-20 出版单位：铁道建筑 年：2018 期：v.58;No.527 基金：中国铁路总公司科技研究开发计划(2017G004-D);; 中国铁道科学研究院基金(2017YJ050,2016YJ041,2016YJ032) 语种：中文; 页：TDJZ201801013 页数：4 CN：01 ISSN：11-2027/U 分类号：60-63

摘要

针对瓦日铁路(瓦塘—日照)湿陷性黄土路基隐伏病害进行了现场踏勘,并应用地质雷达探测、地质钻探、孔内视频探测等方法进行综合检测。检测结果表明:K132+776.79—K132+841.53段地基存在较大范围的松散脱空区和多处人工坑洞。在该区段实施了"高压旋喷桩止水帷幕+双浆液深部挤密注浆"的综合整治方案。整治后检测结果表明人工坑洞及松散脱空区已被充填密实,加固效果良好,线路限速得以解除。
        The hidden defect of collapsible loess subgrade at Watang-Rizhao Railway was in-situ investigated. A comprehensive inspection was conducted with geological radar detection,geological drilling,and hole video system.The results show that a wide range of loose void area and several artificial potholes are under the foundation of K132+776. 79—K132+841. 53 section.The comprehensive treatment measure of High Pressure Jet Grouting Waterproof Curtain combined with Double Liquid Deep Compaction Grouting was formulated and implemented to treat the subgrade defects. A detection after treatment was conducted,which shows that the artificial pothole and loose void area is filled with good reinforcement effect.Thus, speed limiting was then dismissed.

引文

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