摘要
通过对上海廖创兴金融中心大厦面积为5 151m2的深基坑工程逆作法施工的墙体水平位移、基坑底隆起、墙顶和邻近立柱桩以及立柱间的差异位移、水平支撑轴力和楼板应力的大量实测数据,以理性和经验进行分析研究,得出深基坑工程逆作法施工有别于顺作法施工的应力和变形的明显特点,提出改进逆作法施工的基坑设计的建议,供类似工程参考。
In a 170.10m high and 37-storey super-tall building with 3-storey podium, excavation depth of 22.4 - 28.4m and an area of 5 151m^2 in Shanghai, based on the theoretical concept and experience, it is analyzed that a great deal of monitoring results for horizontal displacements, bottom heave, differential displacements between diaphrgam wall and adjacent mid-post pile and between mid-post piles, bracing axial force and stresses in slab of floor for special deep excavation, and significant characteristics of stress and displacement for up-down construction method differing with normal construction method are also been obtained. ,Some suggestions on improving the design of up-down construction method for deep excavation engineering are presented,which may be an impartant reference for other similar projects.
出处
《工业建筑》
CSCD
北大核心
2006年第12期44-49,共6页
Industrial Construction
关键词
逆作法
深基坑工程
水平位移
坑底隆起
差异变形
支撑轴力
楼板应力
up-down construction deep excavation engineering horizontal displacement bottom heave differential displacement bracing axial force stress in floor slab
