Physical Modeling of Settlement Induced Bending moments on Pile Founded Floodwalls
Physical Modeling of Settlement Induced Bending moments on Pile Founded Floodwalls
复制标题
桩基防洪墙沉降引起弯矩的物理模型
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
P. Kokkali
中科院分区：
文献类型：
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作者：
P. Kokkali
T 形墙是新奥尔良常见的桩支撑防洪墙。它们建在长的混凝土或钢桩上，并包括一个用于渗漏和坡度控制的切开的板桩。由于路易斯安那州南部的土壤含有柔软且可压缩的淤泥和粘土，因此这些防洪墙的设计需要能够抵抗洪水荷载和软土在新填料的重量下固结产生的荷载。为了开发一种适当考虑现场条件的全面 T 形墙设计程序，美国陆军工程兵团新奥尔良地区与伦斯勒理工学院和弗吉尼亚理工学院及州立大学合作。开发了一个测试程序来执行离心机测试，该测试程序可以深入了解沉降引起的弯矩的机制和大小，以及用于验证数值模型的可靠数据集。本文描述了实验方法并提出了两种 T 形壁直接放置的离心机测试...
T-walls are pile-supported floodwalls commonly built in New Orleans. They are founded on long concrete or steel battered piles and include a sheet pile cut off for seepage and gradient control. Since soils in southern Louisiana contain soft and compressible silt and clay, these floodwalls need to be designed to resist flood loads and loads produced by consolidation of soft soil under the weight of new fill. In an attempt to develop a comprehensive T-wall design procedure that appropriately considers field conditions, the United States Army Corps of Engineers New Orleans District partnered with Rensselaer Polytechnic Institute and Virginia Polytechnic Institute and State University. A testing programme was developed to perform centrifuge tests that would provide insight into the mechanisms and magnitudes of settlement-induced bending moments and reliable datasets for validation of numerical models. This paper describes the experimental approach and presents two centrifuge tests with T-walls resting directl...