冰川冻土 ›› 2020, Vol. 42 ›› Issue (4): 1220-1228.doi: 10.7522/j.issn.1000-0240.2020.0101
黄旭斌1,2(), 盛煜1(
), 黄龙1,2, 何彬彬1,2, 张玺彦1,2
收稿日期:
2018-07-10
修回日期:
2020-05-20
出版日期:
2020-12-31
发布日期:
2021-01-21
通讯作者:
盛煜
E-mail:hxbxmty@lzb.ac.cn;sheng@lzb.ac.cn
作者简介:
黄旭斌(1989 - ), 男, 甘肃天水人, 2015年在甘肃农业大学获硕士学位, 现为中国科学院西北生态环境资源研究院在读博士研究生, 从事岩土及寒区工程研究. E-mail: hxbxmty@lzb.ac.cn
基金资助:
Xubin HUANG1,2(), Yu SHENG1(
), Long HUANG1,2, Binbin HE1,2, Xiyan ZHANG1,2
Received:
2018-07-10
Revised:
2020-05-20
Online:
2020-12-31
Published:
2021-01-21
Contact:
Yu SHENG
E-mail:hxbxmty@lzb.ac.cn;sheng@lzb.ac.cn
摘要:
在深季节冻土区, 正冻土和桩相互作用时可能会导致桩基的拔断或整体冻拔破坏。在桩周土冻胀过程中, 等截面直桩主要通过桩和未冻区融土间的摩阻力达到锚固效果。而对于端部直径大于桩身直径的扩底桩来说, 当桩基有整体上拔的趋势时, 扩大头会受到上覆土层的阻力而起到锚固/抗冻拔作用。通过回顾国内外研究文献, 介绍了扩底抗拔桩现有的工程背景及应用情况, 并对季节冻土区桩基的受力性能进行了总结和分析, 主要内容包括: 土体冻胀和桩基的相互作用研究, 切向冻胀力试验研究和理论研究, 切向冻胀力作用下扩底桩基冻胀反力试验研究及理论研究, 切向冻胀力作用下未冻区桩-融土间摩阻力的研究概况等。最后, 结合现有的研究内容, 对季节冻土区扩底桩的应用及研究提出进一步的展望。
中图分类号:
黄旭斌, 盛煜, 黄龙, 何彬彬, 张玺彦. 季节冻土区扩底单桩受力性能研究进展与展望[J]. 冰川冻土, 2020, 42(4): 1220-1228.
Xubin HUANG, Yu SHENG, Long HUANG, Binbin HE, Xiyan ZHANG. Study of mechanical behaviors of pile foundation with enlarged end in seasonally frozen ground regions: progress and review[J]. Journal of Glaciology and Geocryology, 2020, 42(4): 1220-1228.
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