基于稳定蠕变模型的软土地层桩基位移理论解

Subjects: Mechanics >> Applied Mechanics submitted time 2023-03-20 Cooperative journals: 《应用力学学报》

于通 王颖轶 王荣勇 黄醒春

Abstract： The creep mechanical model of pile foundation is established based on the creep displacement ofpile foundation and its equivalent time-dependent soil settlement theory.The bearing mode of pile founda-tion and its correlation with load on the top of pile , the settlement displacement and time-dependent char-acteristics of pile foundation under the coresponding bearing mode are studied.The results show that fric-tion end bearing pile in creep stratum is affected by the rheological characteristics of soil , and total dis-placement of pile foundation presents significant time-dependent characteristics , which is dominated by thecreep characteristics of soil.The applicability of model and theoretical method in creep formation is veri-fied by the engineering examples. The viscoelastic theoretical solution can be used not only to predict long-term displacement of pile foundation in stable creep stratum , but also to calculate the failure of pile foun-dation in other creep stratum.

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