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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 .
The “C” method is used to analyze the internal forces of the deep foundation pit supporting structure, which is more in line with the actual situation of soft ground than the conventional “m” method, which assumes that the spring constant K of the soil body is linearly distributed along the depth z of the foundation pit. The “C” method assumes that the soil spring coefficient K = C z, which increases the difficulty of solving and is rarely used in practical engineering. Based on the basic assumption of “C” method, the power series solution satisfying any accuracy requirement is obtained. The calculation steps of this method are used in practical engineering.The results of calculation show that the “C” method can make the calculation simplified and have certain promotion value.