期刊
COMPUTERS AND GEOTECHNICS
卷 91, 期 -, 页码 27-38出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2017.06.018
关键词
Screw pile; Frost jacking; Thermo-mechanical model; Optimal design; Seasonally frozen regions
类别
资金
- National Natural Science Foundation of China [51378057, 41371081]
- scientific and technological development project of Shenshuo Railway [2015-10]
In this paper, a thermo-mechanical model is proposed to simulate the frost jacking behaviour of screw piles subjected to frost heave, and the results are further validated by laboratory tests. The calculated results show that large multi-helix piles yield the least frost jacking when the freezing depth reaches half the embedment depth of pile. Based on the modified cylindrical shear method and individual bearing method, the optimal geometric parameters of screw piles are determined by a series of numerical calculations. The numerical approach is expected to serve as a reference for designing effective and economical pile types in practice. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据