摘要
为探索深基坑开挖对邻近建筑物的影响,确保施工安全,基于上海某深大基坑工程,通过使用大型有限元软件Midas GTS并采用HS本构模型进行精细化建模,模拟基坑开挖全过程对邻近建筑物的影响。同时,将模拟结果与实际监测结果进行对比,验证了模型参数选取的合理性和准确性。讨论了基坑被动区加固及结构底板回筑在基坑开挖全过程中对邻近建筑物的影响,能够为以后的工程使用类似的分析方法时提供借鉴。
To explore the effect of deep foundation pit excavation on adjacent buildings and ensure the construction safety,based on a deep foundation pit project in Shanghai,a large-scale finite element software Midas GTS and HS constitutive model are used for fine modeling to simulate the effect of the whole process of foundation pit excavation on adjacent buildings.At the same time,the simulation results are compared with the actual monitoring results to verify the rationality and accuracy of the model parameter selection.The effect of the reinforcement of the passive zone of the foundation pit and the back construction of the structural bottom plate on the adjacent buildings in the whole process of the foundation pit excavation is discussed.The summarized research experience can provide reference for similar projects.
作者
颜超
YAN Chao(Engineering General Institute of Shanghai Construction Group,Shanghai 201114,China)
出处
《建筑施工》
2021年第6期1131-1134,共4页
Building Construction
基金
上海建工集团股份有限公司集成示范类科研项目(18JCSF-28)。
关键词
深大基坑
Midas
GTS有限元软件
数值模拟
HS本构模型
deep and large foundation pit
Midas GTS finite element software
numerical simulation
HS constitutive model
