[1]张剑涛.深基坑施工对邻域钢管桩基础变形影响研究[J].防灾科技学院学报,2018,20(04):1-8.
 ZHANG Jiantao.Study on the Dynamic Response of the steel pipe pile foundation during Construction of Neighborhood Deep Excavation[J].JOURNAL OF INSTITUTE OF DISASTER PREVENTION,2018,20(04):1-8.
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深基坑施工对邻域钢管桩基础变形影响研究()
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《防灾科技学院学报》[ISSN:1673-8047/CN:13-1377/P]

卷:
第20卷
期数:
2018年04期
页码:
1-8
栏目:
目次
出版日期:
2018-12-31

文章信息/Info

Title:
Study on the Dynamic Response of the steel pipe pile foundation during Construction of Neighborhood Deep Excavation
文章编号:
1673-8047(2018)04-0001-08
作者:
张剑涛12
1.中国建筑科学研究院地基基础研究所,北京 100013; 2.建研地基基础工程有限责任公司,北京 100013
Author(s):
ZHANG Jiantao12
1. China Academy of Building Research, Beijing 100013, China; 2. CABR Foundation Engineering Co., Ltd, Beijing 100013, China
关键词:
深基坑 钢管桩 变形响应 土岩复合地层 灾变机理
Keywords:
deep excavation steel pipe pile deformation response soil-rock compound stratum disaster characteristics
分类号:
TU473.1
文献标志码:
A
摘要:
钢管桩基础建筑物具有刚度大、施工周期短、工程质量高等特点,在建筑领域被广泛采用。若建筑桩基础侧方发生大面积卸荷,会对钢管桩基础建筑物造成严重影响。结合工程实测数据和数值计算结果,以厦门市某典型地铁车站深基坑工程为例,分析了深基坑施工对邻域建筑钢管桩基础变形的影响。研究结果表明:(1)在厦门地区土岩复合地层条件下,深基坑施工对邻域钢管桩基础的影响范围为2h(h为基坑深度),随着基坑开挖深度地增加,桩基沉降量及水平位移逐步增大;(2)钢管桩基础与混凝土桩基础沉降变形响应规律基本相同,钢管桩基础水平位移呈线性分布,混凝土桩基础水平位移存在明显拐点,拐点以下与钢管桩基本相同,拐点以上水平位移约为钢管桩的2倍。
Abstract:
Compared with concrete pile, the steel pipe pile has an advantage as high stiffness, high bearing capacity, high bearing capability, high quality and short construction term. Construction of deep foundation pit causing the unloading of neighborhood soil, inevitable role in the steel pipe pile foundation building. Combining with the actual measurement engineering data and finite element analysis, the deep foundation pit at the typical station on Xiamen metro line 1 is taken as the engineering background of this paper, the dynamic response of the steel pipe pile foundation during construction of neighborhood deep excavation was studied. The results indicate that, Under the condition of soil-rock compound stratum in Xiamen city, when the steel pipe pile location away from the edge of deep foundation pit 1.7h(h: depth of deep excavation), the displacement of the steel pipe pile was generally small. The settlement displacement of concrete pile foundation and steel pipe pile foundation are basically the same, the horizontal displacement of the steel pipe pile foundation has a simple linear distribution. the horizontal displacement of the concrete pile foundation has obvious inflection point, under inflection point, the same as the steel pipe pile foundation, above inflection point, the horizontal displacement two times than the steel pipe pile foundation. Conclusions in this study can provide theoretical references for protection measures to similar projects.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-09-28
基金项目:国家自然科学基金项目(51578023)
作者简介:张剑涛(1991—),男,硕士研究生,主要从事岩土工程方面的科研、设计与施工工作.
更新日期/Last Update: 2018-12-20