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• W2006331561 abstract "Abstract Methods to obtain the soil parameters needed to simulate the dynamic response of a laterally loaded pile were developed in this research. Instrumented model piles of various diameters and embedded lengths were driven into stiff clay and tested laterally under free vibration conditions. Field data of bending moments and accelerations versus time were obtained. The dynamic response of the model piles is predicted using an analytical solution. The nonlinear soil load-displacement characteristics are modeled with a modified Kelvin-Voight rheological model. The field data and the predicted response of the piles are compared and correlated. Using the correlation and laboratory triaxial tests on the soil, the soil parameters required to achieve satisfactory agreement between the field and predicted response of the pile are evaluated. Results of this study indicate that the soil spring and soil quake are functions of the pile diameter. Together, these two soil parameters govern the magnitude and distribution of the bending moments with depth. The amount of soil damping is a function of the pile velocity or frequency of vibration, and is significant for the velocities and frequencies encountered in this study. Introduction Many types of offshore structures have recently evolved for many different purposes. The oil companies are perhaps the largest single industry intimately involved with offshore structures and their design. Drilling platforms are being located in deeper water as demands for oil are ever increasing. Storage structures for oil are being built below the ocean surface. Defense installations and weather retrieving devices are also constructed offshore. As structures are built farther offshore, the design complexities multiply as a result of the more severe sea conditions encountered. Most offshore structures are supported by piles driven deep into the ocean bottom. In the design of these structures, frequently the lateral loads imposed by wind, waves, and ice are the critical design factors. These forces are repetitive, and are time-dependent. In some instances, such as a breaking wave, these forces could be considered impulsive. In the past, these dynamic effects have been given little consideration because of their complexities and the design engineer?s inability to cope with them. With the development of the high speed computer, it is now feasible to consider dynamic effects in design of offshore structures. Knowledge of the soil/pile interaction and water/ pile interaction is imperative if the dynamic response of the pile is to be accurately predicted. A review of the literature shows that much work has been done concerning the soil pile/ interaction under static lateral load conditions. However, very little work has been concerning the dynamic water/pile interaction." @default.
• W2006331561 created "2016-06-24" @default.
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• W2006331561 date "1972-04-30" @default.
• W2006331561 modified "2023-10-16" @default.
• W2006331561 title "Soil Parameters Required to Simulate the Dynamic Lateral Response of Model Piles in Stiff Clay" @default.
• W2006331561 doi "https://doi.org/10.4043/1695-ms" @default.
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