环形支撑在苏州古城区超大型深基坑支护中的应用研究  

Study on Appliation of Circular Support in Ultra-large and Deep Excavation Engineerings of Suzhou Ancient City Area

作　　者：雷秋生 李苏春[1] 

机构地区：[1]江苏省纺织工业设计研究院有限公司苏州勘察分公司,江苏苏州215001

出　　处：《水利与建筑工程学报》2011年第3期95-98,共4页Journal of Water Resources and Architectural Engineering

摘　　要：复杂环境下古城区的超大深基坑开挖,对基坑围护提出了很高的要求,如何选择一种安全经济合理的围护形式至关重要。通过苏州三馆深基坑工程的案例分析研究,充分论述了围护结构采用钻孔灌注桩+三轴深层搅拌桩止水帷幕,坑内采用1道直径为90 m的圆环钢筋混凝土水平内支撑在古城区复杂环境下基坑的适应性,实践证明是成功的,为类似古城区大型深基坑围护工程提供了很好的成功案例,对今后解决复杂环境下的古城区深大基坑问题具有一定的借鉴意义。The deep-large excavation in the complex environment of an ancient city needs higher requirements for retaining structure.So how to choose a safe and economic and reasonable retaining structure is essential.By case analysis of three new places for art gallery and cultural center and celebrity gallery in Suzhou,the adaptability for using bored piles and waterproof curtain with tri-axial deep stirring piles and circular inner support of 90 meters for the retaining structures is discussed here in detail.Through some practices,it is verified that the method discussed here is successful and could provide references and experiences for similar projects.

关 键 词：深大基坑 环境复杂 围护结构 环形支撑 

分 类 号：TU473.2[建筑科学—结构工程]