摘要
通过对上海高238m、60层的超高层建筑和10层裙房的桩筏基础、深为18.95～24.00m和面积22000m2的基坑工程,采用逆作法施工的墙体水平位移、基坑底隆起、墙顶与邻近立柱桩以及立柱桩间的差异变形、墙后土压力和墙体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五个特点,提出改进逆作法施工的基坑设计的建议,供类似工程借鉴。
In a 238m high and 60-storey super-tall building with 10-storey podium, excavation depth of 18.95-24.00m and an area of 22 000m^2 in Shanghai, based on the theoretical concept and experience, it has been analyzed that a great deal of monitoring results for horizontal displacements, heave in pit bottom, differential displacements between diaphragm wall and adjacent mid-post pile and between mid-post piles, earth pressure and stress in diaphragm wall for special deep and big excavation, and five characteristics of stress and displacement for up-down construction method differing with normal construction method have also been obtained. Some suggestions on improving the design of up-down construction method for deep excavation engineering are presented, which may be a reference for other similar projects.
出处
《工业建筑》
CSCD
北大核心
2005年第9期54-59,63,共7页
Industrial Construction
