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本文分析了两根钻孔灌注桩的原位试验资料,桩身内埋设了量测元件。桩的荷载传递试验结果表明:在桩端以上5倍桩径范围内,桩侧摩阻力的发挥与桩端力大小有关;粘土层的摩阻力充分发挥时所需要的极限位移值与土层的埋藏深度有关;桩端阻力发挥时所需要的桩位移,砂土约为桩径的3％,粘土为1.5％,均较魏锡克(A.S.Vesic,1970)报导的打入桩结果为小。
This paper analyzes the in-situ test data of two bored cast-in-place piles, and the measuring elements are embedded in the pile body. The test results of pile load transfer show that: In the range of 5 times the pile diameter above the pile end, the friction resistance of the pile side is related to the size of the end force of the pile; the ultimate displacement required when the friction resistance of the clay layer is fully developed and the soil layer The burial depth is related; the pile displacement required when the pile tip resistance is exerted, the sand is about 3% of the pile diameter, and clay is 1.5%, which is smaller than the result of the driving pile reported by Wei Xike (AS Vesic, 1970).