季节冻土融化对基坑土钉支护的影响

郭红仙; 宋术双; 李秀芬

doi:10.13204/j.gyjz200508017

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季节冻土融化对基坑土钉支护的影响

doi: 10.13204/j.gyjz200508017

1.
清华大学?北京?100084

详细信息

作者简介:
郭红仙,女,1971年5月出生,博士研究生,副研究员

中图分类号: TU753
计量
- 文章访问数: 62
- HTML全文浏览量: 7
- PDF下载量: 92
- 被引次数: 0
出版历程
- 收稿日期: 2005-03-17
- 刊出日期: 2005-08-20

SOIL NAILING UNDER THE INFLUENCE OF THE SEASONAL FROST

1.
Tsinghua University Beijing 100084

摘要

摘要: 北京地区开春时期基坑土钉支护事故比较多，不少事故均与季节冻土的冻融有关。航遥大厦基坑土钉支护在天气转暖时也出现险情，结合航遥基坑的施工过程和坡顶水平位移观测记录，应用有限元方法对该基坑土钉支护的施工过程和受冻土融化的影响进行了分析。分析表明，施工中出现渗水的土钉支护受季节冻土冻融的影响非常明显。
- 土钉支护 /
- 基坑工程 /
- 季节冻土 /
- 有限元分析
Abstract: The accidents of soil nailing for foundation excavation in frost -susceptible areas in early spring are more than in other seasons.The soil nailing of Hangyao Building in Beijing was in danger when the lowest temprature was over 0℃.The main reason is the influence of the frost.With the help of Hangyao Building field measurement records,soil finite element program(PLAXIS) is used for calculation of horizontal deformation in construction and in thaw.The results indicate that frost may have significant influence on soil nailing.
- soil nailing /
- deep excavation /
- seasonal frost finite /
- element analysis

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参考文献(5)

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