高层建筑应用长-短桩复合地基的现场试验研究  被引量:32

Field study on behavior of composite piled raft foundation for high - rise buildings

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作  者:陈龙珠[1] 梁发云[1] 黄大治[1] 王国才[1] 

机构地区:[1]上海交通大学建工学院安全与防灾工程研究所,上海200030

出  处:《岩土工程学报》2004年第2期167-171,共5页Chinese Journal of Geotechnical Engineering

基  金:上海市教育发展基金会曙光计划项目(2001sg013)

摘  要:对采用带垫层的长-短桩复合地基的1幢14层小高层建筑,在建造和使用过程中观测了长桩、短桩和地基土的受力状况以及基础沉降的变化,并由此分析了长-短桩复合地基中的桩-土荷载分担特性、桩-土共同作用机理和荷载-沉降特性,所得结论可为进一步的理论研究及工程设计提供有益的参考依据。To mobilize the bearing capacity of subsoil sufficiently, the long-short composite piled raft foundation with cushion was applied in a 14 - storeyed high-rise building. The load sharing among piles and soil as well as the settlement of foundation varied with change of superstructure loads were observed in construction and in the early service. The behavior of this composite foundation including load-settlement relations, loads sharing characters and interaction mechanism of piles and soil were analyzed in detail. The conclusions of this paper were useful for further theoretical studies and engineering design.

关 键 词:高层建筑 长一短桩复合地基 褥垫层 荷载分担 基础沉降 

分 类 号:TU472.2[建筑科学—结构工程]

 

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