筒桩与土芯存在相对位移趋势以及它们之间相对位移的发生是筒桩内侧摩阻力产生的原因。
The reason for the appearance of internal friction in tubular piles is that the relative displacement or its trend exists between the soil core and piles.
筒桩与土芯存在相对位移趋势以及它们之间相对位移的发生是筒桩内侧摩阻力产生的原因。
The reason for the appearance of internal friction in tubular piles is that the relative displacement or its trend exists between the soil core and piles.
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