摘要
Abstract
In order to guarantee the engineering quality of deep foundation pit supporting structure,a deep foundation pit simulation model was established by finite element software to study and analyze the deformation of underground diaphragm wall and the evolution law of supporting axial force during construction.It is found that the monitoring value of soil horizontal displacement after underground diaphragm wall pouring is greater than the simulated value,but the change law is consistent,which confirms the accuracy of the simulation model.The maximum horizon-tal displacement after foundation pit excavation is 10.7 mm.The maximum horizontal displacement of concrete after hardening is 6.15 mm.The maximum axial forces of the 1st to 3rd channels are 1 994,856 and 1 339 kN respectively.The maximum horizontal displacement of all soils and the maximum supporting axial force are within the design control range.It shows that the construction effect of this project is good and reliable.关键词
基坑工程/FLAC3D/数值模拟/力学特性/变形特性Key words
Foundation pit engineering/FLAC3D/Numerical simulation/Mechanical properties/Deformation characteristics分类
建筑与水利
