双圆环形锚碇基坑嵌岩支护结构受力变形研究  

Study on the force and deformation of the rock-socketed supporting structure of the double ring-shaped anchor foundation pit

作　　者：刘慧芬 吴朵 程春香 王建强 李国贤 LIU Hui-fen;WU Duo;CHENG Chun-xiang;WANG Jian-qiang;LI Guo-xian(School of Transportation,Civil Engineering&Architecture,Foshan University,Foshan 528225,China;Guangdong Wisdom Cloud Engineering Technology Co.,Ltd.Foshan 528225,China)

机构地区：[1]佛山科学技术学院交通与土木建筑学院,广东佛山528225 [2]广东智云工程科技有限公司,广东佛山528225

出　　处：《佛山科学技术学院学报（自然科学版）》2022年第6期42-48,共7页Journal of Foshan University(Natural Science Edition)

基　　金：广东省海洋土木工程重点实验室开放基金资助(LMCE202107);建筑安全与环境国家重点实验室/国家建筑工程技术研究中心开放基金资助(BSBE2021-03)。

摘　　要：以深中通道伶仃洋大桥东锚碇工程为背景,采用三维数值模拟研究基坑土层开挖对地连墙支护结构受力变形的影响,结果表明:圆形地连墙作为支护结构,整体刚度较好,墙体整体侧向变形较小,环向应力远大于竖向应力,主要以环向应力为主,地连墙的嵌固作用效果较明显,能够有效的抵抗墙体的变形。Based on the East Anchorage Project of Ling ding yang Bridge in the Deep and Middle Passage as the background, this paper uses three-dimensional numerical simulation to study the influence of excavation of foundation pit soil on the deformation of the supporting structure of the ground wall. The results show that the circular ground wall is used as support. The structure has good overall rigidity. The overall lateral deformation of the wall is small. The hoop stress is much greater than the vertical stress. The hoop stress is the main one. The ground connecting wall has a more obvious embedding effect and can effectively resist the deformation of the wall.

关 键 词：悬索桥 重力式锚碇 双圆环形地连墙 嵌岩支护 数值模拟 

分 类 号：U448.25[建筑科学—桥梁与隧道工程] U443.24[交通运输工程—道路与铁道工程]