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Abstract：
In order to investigate the effects of different predrilled-hole parameters on the mechanical behavior of micro-piles, Pseudo-static tests on five predrilled-hole micro-piles were carried out under unidirectional cyclic displacement load. The displacement-load curves and distribution of bending moment and displacement are analyzed. The test results indicated that the smaller the stiffness of predrilled-hole filler is, the better the deformability of specimen is. The stiffness of predrilled-hole filler has significant influence on the displacement and bending moment of pile body. Compared with the shallow predrilled-hole specimen, the deep predrilled-hole specimen has lower bearing capacity, but its deformability and bending moment are larger. The larger the diameter of predrilled-hole is, the larger the bending moment of specimen is. The larger diameter of predrilled-hole has significant effect on displacement of specimen. The deformability of predrilled-hole specimen is improved when the depth and diameter of predrilled-hole exceed 3 times of pile diameter. © 2020 IEEE.
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Proceedings - 2020 International Conference on Intelligent Transportation, Big Data and Smart City, ICITBS 2020
Year： 2020
Page： 399-404
Language： English
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 1
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