... 桥梁疲劳剩余寿命评估 evaluating fatigue residual life of bridge 桥梁浅基 shallow foundation of bridge 桥梁浅基防护 unsafe depth foundation protection ...
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The approximate formulas for the natural frequency of bridge piers with shallow foundation, pile foundation and sunk shaft foundation were derived by the Rayleigh Method.
采用瑞利法，导出了计算浅平基桥墩、桩基桥墩及沉井基础桥墩基频的近似公式。
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