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桩侧土体阻尼力变化会对低应变检测信号产生影响。在桩侧土阻尼力由小变大处,对反射波的影响与桩身波阻抗增大一致。桩侧土阻尼力由大变小处,对反射波的影响与桩身波阻抗减小一致。工程实例验证结果与理论分析一致。
The change of soil damping force on the pile side will affect the low-strain detection signal. In the side of the soil damping force from small to large, the impact of the reflected wave impedance consistent with the increase of the pile body. The damping force of soil on the side of the pile changes from large to small, which has the same effect on the reflected wave as that of the pile. The result of engineering example is consistent with the theoretical analysis.