偏压基坑敏感参数分析

When the foundation arounded exists mountain slopes, the role of mountain slope bias will affect the deformation of foundation for the study of deformation in the foundation under which the length of the pile, pile stiffness, pile spacing, prestressed steel support changes in sensitivity and reasonable construction of the project selected parameters. FLAC3D software used, number of sensitive factors in this pile foundation deformation, pile bending moment and slope deposition were studied. The results show that: 1) the slope sedimentation on the most sensitive to changes in the length of the pile, and prestressed by supporting the impact of the change minimum; 2) structural deformation of foundation pit retaining structural stiffness change by more obvious by the pile spacing changes in the least; 3) Trail Sheung Shui Station in Shenzhen this project, the simulation results show that it's a reasonable length of pile should be 26m, a reasonable pile spacing of 1.35m, to be reasonable support for the first prestressed support 300kN, the rest of 800kN.