Single pile bearing performance of super-long deep water drilling in complicated geological environment
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    Abstract:

    The load transfer mechanism of super long deepwater bored pile is complicated,especially in complex geological environment,and its bearing performance has an important effect on the optimization design and construction of the pile.Based on the experimental data of self-balanced static load test,the load-bearing capacity of super-long deep water drilling single pile in different geostatistical tectonic-rock alternating strata is analyzed by finite element software GTS.Using Mohr-Coulomb model as constitutive relation of soil,and setting contact unit on the pile soil interface,the beam element is used to simulate the pile.The results show that the Q-S curve of the static load test is in good agreement with the calculated value,and the bearing capacity of the pile is good.The pile tip settlement begins to show a certain extent when the friction resistance of pile side is played.The axial force of pile and lateral friction of pile are obviously influenced by the change of depth,and show a certain rule.

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黄凌君,刘纪峰,陈续鸿.复杂地质环境下超长深水钻孔灌注单桩承载性能*[J].水运工程,2018,(7):172-176

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  • Online: July 17,2018
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