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Assessment of ultimate load of drilled shaft socketed in rocks based on pile load tests

机译：基于桩载试验的岩石钻孔升降钢筋升值的评估

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To investigate the settlement characteristics of drilled shaft socketed into igneous, metamorphic, or sedimentary rock, experimental results of the pile load tests were thoroughly collected in 20 different locations, clearly tabulated, and extensively compared with the standards for assessment of ultimate load. Total and elastic settlement patterns of drill shaft were completely dependent on the socketed pile length, the imposed load, the pile diameter, and the shear stress in bedrock, whereas residual settlement did not depend on the factors. It was also observed that the trends of total, residual, and elastic settlements were independent on bedrock types. Comparison between the experimental data and the standards shows that the total and residual settlements of large drilled shaft socketed in bedrock were too high to determine the ultimate load, and the reasonable amount of total or residual settlement measured from pile load test is proposed to assess the ultimate load capacity of drilled shaft socketed in bedrock.
机译：为了研究钻井轴的沉降特性插入火射，变质或沉积岩石中，桩载试验的实验结果在20个不同的位置彻底收集，清晰地制表，并与评估最终负荷评估标准进行了广泛的标准。钻井轴的总和弹性沉降图案完全取决于侧插桩长度，施加的载荷，桩直径和基岩中的剪切应力，而残留沉降并不依赖于因素。还观察到，总，剩余和弹性沉降趋势在基岩类型上独立。实验数据与标准之间的比较表明，在基岩中插座的大型钻井轴的总沉降太高，无法确定最终载荷，并提出了从桩载试验中测量的总量或残余沉降量来评估基岩中钻孔插座的最终负载能力。

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