Elastic-Plastic Solutions for Laterally Loaded Piles in Layered Soils
Elastic-Plastic Solutions for Laterally Loaded Piles in Layered Soils
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DOI：
10.1061/(asce)em.1943-7889.0000580
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发表时间：
2013-11
期刊：
影响因子：
--
通讯作者：
Ling Zhang;Ming-hua Zhao;X. Zou
中科院分区：
文献类型：
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作者：
Ling Zhang;Ming-hua Zhao;X. Zou
在岩土工程实践中，定量分析层状土中水平荷载桩的响应是十分重要的。本文采用半解析方法研究了水平荷载作用下多层地基中直桩的静力特性。周围土体的行为被理想化为理想弹塑性模型。利用地基反力理论的基本思想，建立了考虑桩侧变形的控制微分方程。结合相邻桩段的连续性条件，将桩顶的挠度和侧向力以矩阵形式表示为全桩的响应。通过其他理论解和实测数据验证了所提出解的有效性。同时还讨论了地基土分层效应对水平荷载桩的影响。
AbstractIn geotechnical practice, it is important to quantify the response of laterally loaded piles in layered soil systems. In this paper, semianalytical solutions were developed to assess the static behavior of vertical piles embedded in multiple-layered soil systems and subjected to lateral loads. The behavior of the surrounding soil was idealized as an elastic-perfectly plastic model. The basic idea of the subgrade reaction theory was used to obtain the governing differential equations in terms of pile lateral deflection. Combining with continuity conditions at the adjacent pile segments, the response of the whole pile was expressed through the deflections and lateral forces at the pile head in a matrix form. The validation of the proposed solutions was verified by other theoretical solutions and measured data. The layering effect of subgrade soils on the response of the laterally loaded pile was also discussed.