高冰
Gao Bing

• 1:中国中铁上海工程局有限公司

摘要(Abstract)：

影响基坑围护变形的因素很多,诸如开挖时间、开挖环境等。在考虑以上因素的同时,基于软土蠕变模型和反分析,利用有效模型对宁波地铁樱花站联络线基坑开挖过程中围护结构的变形进行分析。模拟结果成功地预测了联络线最近东航大厦处围护结构的位移。现场依据计算结果对第4道混凝土支撑加以替换,从而节省了基坑暴露时间,并有效地控制了围护结构的变形以及东航大厦的不均匀沉降。
Many factors like time and environment have a big impact on the foundation excavation safety. Considering these factors,a numerical model was established to predict the envelope's transformation of the Yinghua Subway Station based on the soft clay creep model of secondary development and back analysis. The result showed that the deformation in Donghang building would be large. Based on the result,the forth support frame could be replaced timely. This measurement reduced the exposure time of the foundation excavation and the building's differential settlement accordingly.

关键词(KeyWords)： 地下工程;基坑;软土;蠕变;数值模拟;变形
underground;foundation excavation;soft soil;creep;simulation;deformation

Abstract:

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基金项目(Foundation):

作者(Author): 高冰
Gao Bing

参考文献(References)：

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