特大重力式锚碇的应用研究综述  

Summary for Application of Super Gravity Anchorage

作　　者：邓友生[1] 万昌中[1] 时一波[2] 刘荣[2] 

机构地区：[1]湖北工业大学土木工程与建筑学院,湖北武汉430068 [2]中铁大桥局集团第六工程有限公司,湖北武汉430100

出　　处：《公路工程》2012年第6期93-96,共4页Highway Engineering

基　　金：湖北省教育厅重点项目(D20101401);中铁大桥局集团第六工程有限公司武汉鹦鹉洲长江大桥项目部资助

摘　　要：锚碇是悬索桥的关键承力部位。根据对锚碇计算理论与工程实践的研究,首先阐述了特大重力式锚碇大体积混凝土温控技术的应用情况;其次,分析了软岩地基上锚碇基础土体蠕变、基坑支护以及齿坎效应对其变位及稳定性的影响;再者介绍了有限元法在锚碇结构应力分析及长期变位预测中的应用;最后指出了重力式锚碇的研究方向。Anchor is the key bearing component of suspension bridge.According to the researches of design theory and engineering practices,firstly,temperature control technologies of large volume concrete are summarized in super gravity anchorage.Secondly,it analyzed the achievements of foundation soil creep,foundation pit supporting,notched sill effects on soft rock foundation,and its affect on displacement and stability of anchor.Thirdly,the application of finite element method in stress analysis of anchorage structure and long-term displacement prediction are introduced briefly.Finally,some questions of gravity anchorage are pointed out in future research.

关 键 词：重力式锚碇 土体蠕变 稳定性 齿坎效应 有限元 

分 类 号：U443.24[建筑科学—桥梁与隧道工程]