桩孔开挖对滑坡体上桥梁桩基的影响分析  

Influence of Pile Hole Excavation on Bridge Pile Foundation on Landslide

作　　者：马定乐 李清 卢浩 MA Dingle;LI Qing;LU Hao(Guangdong Transportation Industrial Investment Co.,Ltd.,Guangzhou 510000,Guangdong,China;Guangdong Transportation Technology Testing Co.,Ltd.,Guangzhou 510550,Guangdong,China;Guangdong Hualu Transport Technology Co.,Ltd.,Guangzhou 510420,Guangdong,China)

机构地区：[1]广东交通实业投资有限公司,广东广州510000 [2]广东交科检测有限公司,广东广州510550 [3]广东华路交通科技有限公司,广东广州510420

出　　处：《广东交通职业技术学院学报》2023年第4期58-63,共6页Journal of Guangdong Communication Polytechnic

摘　　要：近年来,受不稳定边坡的影响,边坡上的公路桥梁病害频繁发生,公路管养单位不得不对边坡进行加固。然而边坡加固可能对桥梁桩基产生二次影响,引发或加剧桥梁病害,因此,有必要对这种影响进行科学合理的分析。以某大桥下滑坡体加固工程为研究对象,结合现场监测和数值计算等手段,对滑坡体加固过程中边坡及桥梁病害发展情况进行了相关性分析,并对滑坡体加固前后的桥梁桩基受力情况进行了分析和探讨,其研究成果可为类似边坡加固工程的设计和施工提供参考。In recent years,due to the influence of unstable slope,highway bridge diseases on the slope occur frequently,and highway management and maintenance units have to strengthen the slope.However,slope reinforcement may have a secondary impact on bridge pile foundation and cause or aggravate bridge diseases.Therefore,it is necessary to analyze this impact scientifically and reasonably.Taking the landslide reinforcement project of a bridge as the research object,combined with on-site monitoring and numerical calculation,this paper analyzes the correlation between the development of slope and bridge diseases in the process of landslide reinforcement,and discusses the stress of bridge pile foundation before and after landslide reinforcement.The research results can provide reference for the design and construction of similar slope reinforcement projects.

关 键 词：路基工程 滑坡 桥梁桩基 桩孔开挖 现场监测 FLAC-3D 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]