以弹性地基梁理论为基础，建立了上排钢管幕在超挖和欠挖两种工况下的力学计算模型，推导出钢管幕的挠度曲线及相应的控制方程。

Underexcavation and overexcavation models have been presented based on the elastic foundation beam theory and the corresponding deflection equations and other controlling equations have been deduced.

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