肋柱式锚杆支挡结构的徐变次内力分析
摘要:采用老化徐变理论和等效弹性模量法,对肋柱式锚杆支挡结构的徐变影响提出了具体计算方法,并通过实例计算了支挡结构的徐变次内力。计算结果表明,在逆作法条件下,随着开挖深度的加大,岩土侧向压力也增大,使后期施工的混凝土构件产生的徐变次内力也随之增大;考虑徐变后使结构设计更加安全可靠,尤其坡脚处后期浇筑的混凝土构件,更要关注徐变的影响。
Abstract:A practical method of secondary inner force analysis is presented for column-anchor retaining structure considering concrete creep based on concrete aging creep theory and equivalent elastic modulus. The results of secondary inner force of a detail retaining structure are also presented and discussed. It is demonstrated that the secondary inner force increases with the increasing of earth pressure or with the increasing of excavation depth under downward construction. The results also show that it is necessary to consider concrete creep for retaining structure near wall toe because the secondary inner force of this section is larger than others.
中文标题：
肋柱式锚杆支挡结构的徐变次内力分析
Secondary Inner Force Analysis of Column-Anchor Retaining Structure with Concrete Creep
作者：
王后裕1,刘志杰1,言志信2
Wang Houyu1,Liu Zhijie1,Yan Zhixin2
作者简介:王后裕,1969年生,湖南隆回人,工学博士,高级工程师,一级注册结构工程师,注册土木工程师(岩土),从事国防工程科研与设计工作。E-mail:luckmanwang@yahoo.com.cn
通讯地址：
1. 空军工程设计研究局, 北京 100068; 2. 中南大学, 湖南长沙 410075
1.AirForceEngineeringDesign&ResearchBureau,Beijing100068; 3.CentralSouthUniversity,ChangshaHunan410075China
中图分类号:TU311.4
出版物：岩土工程技术
收稿日期:2008-03-20
网络出版日期:2021-07-07
关键词:肋柱式锚杆支挡结构,次内力,混凝土徐变,等效弹性模量法,逆作法施工,岩石边坡
Key words:column-anchor retaining structure,secondary inner force,concrete creep,equivalent elastic modulus method,downward construction method,rock slope
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