摘要
通过对上海软土地区某地铁车站基坑实测数据的分析,探讨了GFRP混合配筋地下连续墙的围护结构变形、坑外地表沉降的特性。结果表明,GFRP混合配筋地下连续墙的侧向最大位移为开挖深度的0.17%~0.68%,平均值为0.37%;最大侧向位移对应深度在混合配筋衔接处;围护结构的竖向位移为侧向最大位移的0.02~0.5之间,平均值为0.2;坑外地表沉降为开挖深度的0.043%~0.34%,平均值为0.23%;地表沉降数据为围护结构最大侧向位移的0.17~1.71;GFRP混合配筋地下连续墙的变形控制弱于普通地下连续墙。
By analyzing the measured data of the foundation pit of a subway station in Shanghai soft soil area,the characteristics of the deformation of the retaining structure of the GFRP mixed reinforced underground continuous wall and the surface settlement outside the pit were discussed.The results show that the maximum lateral displacement of the GFRP reinforced ground connection wall is 0.17%to 0.68%of the excavation depth,with an average value of 0.37%;the corresponding depth of the maximum lateral displacement is at the junction of the mixed reinforcement;the lateral displacement is between 0.02 and 0.5 of the maximum lateral displacement,with an average value of 0.2;the surface settlement outside the pit is 0.043%to 0.34%of the excavation depth,with an average value of 0.23%;the surface settlement data is the maximum lateral direction of the retaining structure.The displacement is 0.17~1.71;the deformation control of GFRP reinforced underground ground connection wall is weaker than that of ordinary underground ground connection wall.
出处
《建筑技术开发》
2020年第12期153-155,共3页
Building Technology Development
关键词
软土
基坑
地下连续墙
变形
soft-soil
foundation pit
underground diaphragm wall
deformation
作者简介
王晓萌(1986—),男,河南登封人,工程师,主要研究方向为基坑监测与工程物探。
