THE MECHANISM OF THE EFFECTS OF INCREASING THE LENGTH OF THE PILES UNDER LATERAL LOADS IN SAND

IF 0.2 Q4 ENGINEERING, GEOLOGICAL
Abbas Firouzi Karamjavan, H. Hashempour
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引用次数: 0

Abstract

In many projects, piles are designed and installed as the ultimate solution in foundation construction, load transition to the resistant subsurface layers, providing lateral resistance, and overcoming the poor performance of surface soils. Pile design should be done with respect to structural consideration, the load-carrying capacity of the surface and surrounding soil, settlement, and constructional, technical and environmental problems. Pile group is a particular type of deep foundations which is mostly and widely utilized in coastal and offshore structures, and sustains vertical and lateral loads. Noting the lateral load exerted on the structure, the effect of loading on the behavior of pile should be analyzed using an appropriate method. In this article, a 4x4 pile group with piles of 100 cm diameter and 10, 15-m in length with center-to-center spacing of 3 times the diameter are modeled using the Plaxis 3D Foundation, which uses the finite element method, and the Mohr-Coulomb model, and the behavior of the piles driven in sand and subjected to loading is studied. Taking the results, the mechanism of the pile group behavior under vertical, lateral, adjacent structures loads and bending moment is calculated, and displacement in the x-direction, y-direction, and along the length, bending moment, and bearing capacity along the length of the pile have been obtained for each pile.
分析了横向荷载作用下增加桩长对砂土桩的影响机理
在许多工程中,设计和安装桩作为基础施工的最终解决方案,将荷载转移到具有抗性的次表层,提供横向阻力,并克服表层土壤的不良性能。桩的设计应考虑结构、表面及周围土体的承载能力、沉降以及施工、技术和环境问题。群桩是一种特殊类型的深基础,在沿海和近海结构中应用最多,承受竖向和侧向荷载。考虑到施加在结构上的侧向荷载,应采用适当的方法分析荷载对桩性能的影响。本文采用Plaxis 3D Foundation有限元模型和Mohr-Coulomb模型,对直径为100 cm、桩长为10.15 m、桩间距为直径3倍的4 × 4桩群进行了建模,研究了桩在砂土中打入荷载作用下的受力特性。据此计算了群桩在竖向、横向、相邻结构荷载和弯矩作用下的行为机理,得到了每根桩在x向、y向、长度方向上的位移、弯矩和长度方向上的承载力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Archives for Technical Sciences
Archives for Technical Sciences ENGINEERING, GEOLOGICAL-
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