黄河冲积地层深基坑支护结构变形与受力特性分析OA

Based on the example of a deep foundation pit project near the Yellow River in Jinan City,the deformation and internal force of the deep foundation pit support structure during excavation were studied in this paper.The research results indicate that the maximum horizontal displacement of the wall occurs near the excavation depth,and the creep of the soil outside the pit will cause additional deformation of the wall.The support at the top of the wall bears tension,while the other supports bear pressure.The axial force of each support increases with the depth of excavation.After the installation of all the horizontal supports,the axial force remains basically stable.