【摘要】 采用“C”法分析深基坑支护结构的内力 ,该法较常规的假定土体弹簧系数K沿基坑底下深度z线性分布的“m”法更符合软土地基的实际情况 .但由于“C”法假定土体弹簧系数K =C z,增加了求解的难度 ,鲜见用于实际工程 .基于“C”法的基本假定 ,获得了满足任意精度要求的幂级数解 ,阐述了该方法的计算步骤 ,并将其用于实际工程中 .计算结果表明 :“C”法能使计算得以简化 ,具有一定的推广价值 .更多还原

【Abstract】 The flexible retaining structures of deep excavation are analyzed by the “ C ” method. The calculation assumption of this method more tallies with the actual situation in soft clay ground than that of the “ m ” method, in which it is granted that the coefficient K of clay springs distributes linearly along the depth of the bottom of the excavation. Because the “ z ” method supposes the coefficient of clay springs K=Cz ,adding to the difficulties of solution, seldom applications in actual engineering are reported. In the paper, based on the basic assumption of the “ C ” method,the solution of positiveseries satisfying any precision is obtained;the count steps are expounded and the method is used in actual engineering.The computed results show the validity of the method presented in this paper.更多还原