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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/297053672ExperimentalresearchongeogridreinforcedearthretainingwallArticle·January2009CITATIONSREADS16264authors,including:Y.T.ZhouHebeiUniversityofWaterRes
2、ourcesandElectricEngineering18PUBLICATIONS73CITATIONSSEEPROFILEAllcontentfollowingthispagewasuploadedbyY.T.Zhouon12March2018.Theuserhasrequestedenhancementofthedownloadedfile.第30卷第1期岩土力学Vol.30No.12009年1月RockandSoilMechanicsJan.2009文章编号：1000－7598－(2009)01－
3、0206－05土工格栅加筋土挡墙试验研究1213杨广庆，周亦涛，周乔勇，薛晓辉（1.石家庄铁道学院土木工程分院，石家庄050043；2.河北工程技术高等专科学校，河北沧州061001；3.陕西铁路工程职业技术学院，陕西渭南714000）摘要：采用在墙面板背后安装土压力盒以及在土工格栅上安装柔性位移计的方法，对某高速公路加筋土挡墙水平土压力和土工格栅拉筋位移进行了系统测试。试验研究表明，施工期间土工格栅加筋土挡墙墙背土压力随填土高度的增加而增大，增长速率逐渐减小，其数值均小于理论计算结果，沿墙高分布形式与计
4、算结果有较大差别；土工格栅拉筋在施工期应变变形较大，工后应变非常小，挡墙下部土工格栅拉筋端部应变随填土高度变化较大，在加筋体锚固区末端存在过渡区，其工程特性逐渐向非加筋体填土过渡。根据试验结果对土工格栅加筋土挡墙施工控制及关键技术提出了相关建议。关键词：加筋土挡墙；土工格栅；土压力；拉伸变形；现场试验+中图分类号：TU472.34文献标识码：AExperimentalresearchongeogridreinforcedearthretainingwall1213YANGGuang-qing,ZHOUYi
5、-tao,ZHOUQiao-yong,XUEXiao-hui(1.SchoolofCivilEngineering,ShijiazhuangRailwayInstitute,Shijiazhuang050043,China;2.HebeiEngineeringandTechnicalCollege,Cangzhou061001,China;3.ShanxiVocationalCollegeofRailwayEngineeringTechnology,Weinan714000,China)Abstract:
6、Thelateralearthpressureandthetensiledisplacementofgeogridsaretestedonthehighwaygeogridsreinforcedearthretainingwall,thoughtusingtheearthpressurecellsbackofthewallfacingandtheinductiveflexibledisplacementsensoronthegeogrids.Withtheincreasingofwallheight,th
7、elateralearthpressureofdifferentlayerswillincrease,whilethegrowthrateoftheearthpressuredecreasesandthemeasuredlateralearthpressurelessthanthetheoreticalvalue.Meanwhile,thecurveofthelateralearthpressurealongwallheightisdifferentfromtheorycurve.Theobviouste
8、nsiledisplacementofgeogridsoccursduringconstruction;butthedisplacementpost-constructionisspeciallysmall.Theclearstrainvarietywithwallheighttakesplacefrontthegeogridsatlowerwall.Thetransitionareawillhappenattheendoft
