【摘要】 采用平面应变有限元法讨论深基坑工程多支撑支护问题 ,与传统的静力平衡法、弹性抗力有限元法相比具有优越性 ,该方法将支护结构与土体作为 1个系统研究 ,充分考虑桩土间的协调作用 ,模拟桩土接触界面 ,能计算出不同开挖阶段坑底及地表的变形、支护结构的应力及弯矩 ,在基坑支护结构设计中具有重要应用价值。更多还原

【Abstract】 The question of multi-supporting for deep foundation pits is discussed in this paper by using the methods of the plane strain finite element. Compared with traditional methods such as the static limit equilibrium method and the elastic resistance finite element method, this method is capable of researching supporting and soil as a system, coordinating the pile and soil and simulating the interface between them. It can give the deformation of the pit bottom and the ground surface, and the stress, bending moment of the supporting structure during different excavation stages. It is of important application value in the design of supporting structure.更多还原