Simulation Analysis of Deep Foundation Pit Support System Based on ABAQUS
The safety and stability of deep and large foundation pit are very important to the construction because of its complex geological conditions and hidden deformation.Taking the foundation pit occlusal pile support project of China Railway Construction South China Headquarters Building as an example,the simulation analysis and displacement calculation of occlusal pile support system under multiple working conditions are carried out with ABAQUS software.The results show that in the early stage of support,the middle part of the occluded pile is affected by soil pressure and pile strength,and the top and bottom of the occluded pile are affected by stretching.In the middle stage of support,with the increase of concrete strength and the fixing of central tie rod,the tensile displacement decreases gradually.In the later period of support,except for the large displacement of the boundary occluding pile and the bottom support,the other piles remain stable;The simulated displacement is consistent with the measured results and has high reliability.
deep foundation pitocclusal pile support systemfinite element modellingABAQUS
万方数据
维普
