紧邻地铁的深基坑施工技术及其位移分析  

CONSTRUCTION TECHNIQUE AND THE DISPLACEMENT ANALYSIS FOR DEEP EXCAVATION ADJACENT TO SUBWAY

作　　者：彭顺[1] 段仲源[1] 邓天旺 

机构地区：[1]南华大学城市建设学院,湖南衡阳421001 [2]中建五局广东公司,广东深圳518002

出　　处：《建筑技术开发》2008年第4期33-35,共3页Building Technology Development

摘　　要：深圳星河酒店基坑两侧紧邻地铁,周边环境复杂,开挖深度达18.6 m。该基坑支护主要为钻孔及人工挖孔咬合桩,为适应基坑周围环境的多样性,还采用了锚杆、植筋墙,利用结构本体换撑,静爆加切割拆除内支撑等工艺。分析了该基坑不同部位水平位移的原因,及基坑变形特征。经监测,基坑变形各项指标均在设计的控制标准之内,取得了令人满意的基坑支护效果,可供类似工程借鉴。Deep excavation of Shenzhen galaxy hotel was in complex surrounding environments, which was dug 18.6m in depth, Because the diversity of surrounding environments, some compound types of protection were adopted in the design of the protective structure of excavation, the main type were secant piles and artificially excavating holed secant piles, meanwhile, piles and anchors supporting, anchoring wall were adopted. Static blasting and cutting technique were adopted in dismantling the inner support. Other monitored indexes were all within the standard limit of the design. Having obvious benefit, The characteristics of pit displacement and the reason why horizontal displacement occurs are analyzed, in order to provide reference for the similar engineering projects.

关 键 词：深基坑 内支撑 支护桩 换撑 

分 类 号：TU753.1[建筑科学—建筑技术科学]