Settlement of pile groups based on static load tests on single pile
MAO Yan-bing1, 2, DAI Guo-liang1, 2, GONG Wei-ming1, 2
1. School of Civil Engineering, Southeast University, Nanjing 210018, China; 2. Key Laboratory for RC and PC Structures of Ministry of Education, Nanjing 210018, China
Abstract：The Q-scurve of static load tests on single pile is used to calculate the equivalent elastic modulus of the soils under load at all levels. A function relationship between the displacement of pile head and the equivalent elastic modulus is established. The Mindlin solution of displacement is used to calculate the interaction of piles, and an emirical formula is introduced to correct the shortcomings of the elastic solution. The equivalent elastic modulus used to calculate the settlement of pile groups is equal to the elastic modulus calculated from the static load tests on single pile with the same settlement. So the elastic theory can be applied in the plastic stage. Finally, the validity of the proposed method is verified by the field tests.
茅燕兵, 戴国亮, 龚维明. 基于单桩静荷载试验的群桩沉降预测研究[J]. 岩土工程学报, 2013, 35(zk2): 627-631.
MAO Yan-bing, DAI Guo-liang, GONG Wei-ming. Settlement of pile groups based on static load tests on single pile. Chinese J. Geot. Eng., 2013, 35(zk2): 627-631.
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