摘要
对已经发生滑坡的高速公路进行研究,以期降低滑坡带来的潜在危害。以乐广高速公路(乐昌—广州)典型路堤滑坡整治为工程背景,通过现场调查确定了滑坡形成的三个主要不稳定因素,进而分析了该滑坡形成的主要力学机制。根据该工点滑坡形成机理与变形特征,通过方案比选,提出采用多次分段控制注浆钢花管支挡加固新技术和多次分段控制注浆斜向预应力钢锚管锚索组合结构加固技术进行加固整治,应用效果良好。
The analysis and research of the highway that has experienced landslides were conducted with the aim of mitigating the potential hazards caused by landslides.Taking the landslide remediation of a typical embankment on the Lechang-Guangzhu Expressway as the engineering background,three main unstable factors that contribute to landslide formation were identified through field investigations.Subsequently,the primary mechanical mechanisms behind the landslide formation were analyzed.Based on the formation mechanism and deformation characteristics of the landslide at the construction site,a new technology of using sub segmented control grouting steel flower pipe support reinforcement and multiple segmented control grouting inclined prestressed steel anchor pipe anchor cable combination structure reinforcement was proposed through scheme comparison,and the application effect was good.
作者
张玉芳
崔建
袁坤
刘波
向润泽
ZHANG Yufang;CUI Jian;YUAN Kun;LIU Bo;XIANG Runze(Railway Engineering Research Institute,CARS,Beijing 100081,China;State Key Laboratory for Track Systems of High-speed Railway,Beijing 100081,China)
出处
《铁道建筑》
北大核心
2024年第4期101-106,共6页
Railway Engineering
基金
中国铁道科学研究院集团有限公司基金(2022YJ107,2023YJ190,2023YJ221)
中国国家铁路集团有限公司科技研究开发计划(N2021G008)。
关键词
公路路基
滑坡
地质调查
整治措施
钢花管注浆
highway embankment
landslide
geological survey
remedial measures
steel-pipe grouting
