施工技术 2017年3月上 16 CONSTRUCTION TECHNOLOGY 第46卷第5期 D0I:10.7672/sgjs2017050016 某深基坑逆作法地下连续墙施工技术 杨益飞，关群 (合肥工业大学土木与永利工程学院，安徽合肥230009) [摘要]某深基坑工程设计采用“周边逆作、中间主楼顺作”的逆作法施工技术，地下室围护结构采用“两墙合一“ 的地下连续墙，基坑开挖阶段，利用地下各层楼板作为水平支撑.本工程施工场地狭小、地质条件及周边环境复 杂，施工中采取了多项措施来保证槽壁稳定、控制沉降等，以及采用五轴水泥搅拌桩新技术代替三轴水泥搅拌桩、 砂石袋代替接头箱等优化指施.事实表明，施工阶段取得了良好的效果. [关键词]深基坑；逆作法；地下连续墙；施工技术 [中图分类号]TU753 [文献标识码]A [文章编号]1002-8498(2016)05-0016-04 Top-down Method of Diaphragm Wall in a Deep Foundation Excavation Yang Yifei.Guan Qun School of Civil Engineering Hefei University of Technology Hefei Anhui 230009 China) Abstract:A deep foundation excavation engineering adopted the reverse construction method of 'bottom- up method for central part and top-down method for peripheral part'in its design.Diaphragm walls was used as its exterior-protected structure and making use of the basement floor layers as horizontal support in the foundation excavation stage.The construction site is narrow and small with plex geological conditions and surrounding environment.Therefore several measures have been taken to ensure the groove wall stability control of the settlement and the use of five-axis cement mixing pile to replace triaxial cement mixing pile sand and gravel bags instead of connector box and other optimization measures.The facts show that it achieved good results. Key words:deep foundation excavation;top-down method;diaphragms;construction 1工程概况 安庆路 本工程位于合肥市传统商业区域，东临花园 一恒达木 街、南临省总工会、北临安庆路及市中心广场，占地 花 约17.59亩(1亩=666.67m2) 规划总建筑面积约 16万m2 ...
某深基坑逆作法地下连续墙施工技术.pdf
