论文部分内容阅读
盾构在近距离穿越桩基时,会引起周边土体的扰动,引起桩基的受力重分布和二次变形,必须考虑结构的安全性和经济性,是否需要进行加固是工程比较关注的。研究表明,通过三维数值进行模拟,在有可靠的分析计算理论基础上,配合合理的施工控制,严格把握既有建筑物竖向、水平的有害变形,不进行加固,也可取得比较理想的效果。
When the shield traverses the pile foundation at a short distance, it will cause disturbances of the surrounding soil and cause the stress redistribution and secondary deformation of the pile foundation. The safety and economy of the structure must be considered. Whether the reinforcement needs to be strengthened is a concern of the project . The research shows that through the three-dimensional numerical simulation, based on the reliable theory of analysis and calculation, with reasonable construction control, it can strictly grasp the vertical and horizontal harmful deformation of the existing buildings, and can obtain the ideal result without reinforcement .