Three-dimensional model development for defect analysis of drilled shafts

机译：钻杆缺陷分析的三维模型开发

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The occurrence of construction defects in drilled shafts is a well-known problem in geotechnical engineering, however no means currently exist to determine the effect of a defect on shaft capacity. This research attempts to study the effect of construction defects on drilled shafts using finite element modeling and to develop a method to quantify their effect on shaft performance and behavior. Simple two-dimensional finite element models of axially loaded shafts with defects were analyzed in Phase Ⅰ of the work, and the current Phase Ⅱ research considers drilled shafts with defects under lateral and axial loading using three-dimensional models. The following presents the three-dimensional model of drilled shafts under axial loading and describes model development using the finite element code OpenSees. Model calibration using existing full-scale field load test data is discussed and preliminary results are presented.

机译：在钻探井筒中出现施工缺陷是岩土工程中的一个众所周知的问题，但是，目前尚无确定缺陷对井筒承载力影响的方法。这项研究试图使用有限元建模研究构造缺陷对钻孔轴的影响，并开发一种量化其对轴性能和性能影响的方法。在工作的第一阶段中分析了带有缺陷的轴向载荷轴的简单二维有限元模型，当前的第二阶段研究使用三维模型考虑了在横向和轴向载荷下具有缺陷的钻孔轴。下面介绍了轴向载荷下钻轴的三维模型，并描述了使用有限元代码OpenSees进行的模型开发。讨论了使用现有的满量程现场载荷测试数据进行的模型校准，并给出了初步结果。

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来源
《International PhD Symposium in Civil Engineering vol.2; 20040616-19; Delft(NL)》|2004年|P.1099-1105|共7页
会议地点 Delft(NL)
作者
K.A. Petek; P.A. Arduino; R.D. Holtz;
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作者单位

University of Washington, Seattle, Washington, USA;

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原文格式 PDF
正文语种 eng
中图分类市政工程;
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Three-dimensional model development for defect analysis of drilled shafts

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