两种圆形深基坑开挖方案施工过程分析  

ANALYSIS ON CONSTRUCTION PROCESS OF CYLINDRICAL FOUNDATION PIT BASED ON TWO EXCAVATION PLANS

作　　者：徐伟[1] 孙旻[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《建筑技术》2007年第9期675-677,共3页Architecture Technology

摘　　要：圆形基坑大多是用于特殊场合的超深基坑,如悬索桥工程中的锚碇基坑和水电工程中的竖井,工程实例表明其受力特点与条形基坑有较大差别。总结目前应用于该类基坑开挖的两种开挖支护形式,并从受力模型和施工风险的角度比较二者的优缺点,为类似工程结构选型提出建议。Cylindrical foundation pit is generally applied to such special situations as anchor pit for suspension bridge and vertical shaft pit in hydropower project. Engineering experience demonstrates that its mechanical feature is, quite different from that of strip pit. Two support and excavation forms being used for cylindrical pit presently are summarized. And their advantages and disadvantages are compared in points of mechanical model and construction risk, offering some advice to similar project.

关 键 词：圆形基坑 支护结构 开挖方案 

分 类 号：TU753.62[建筑科学—建筑技术科学]