基坑围护结构土压力与变形探讨

摘要

根据基坑围护结构土压力的特点，分析土压力与位移的关系，推导了基坑开挖面上土体所能达到的主动土压力，围护结构墙体所要需要的极限位移相关计算公式，并编写有限元程序Mmethod，程序的编写结合按弹性地基梁模型。%According to the characteristics of foundation pit retaining structure earth pressure, analyze the relationship be-tween earth pressure and displacement, deduce the active earth pressure of the surface soil can reach on the foundation pit excavation, the related ultimate displacement calculation form-ula that retaining wal needs, and prepare the finite element pr-ogram Mmethod, prepared program combining the elastic fou-ndation beam model.