|本期目录/Table of Contents|

[1]成炜康,郑选荣,吕高,等.郑州地区双线盾构隧道开挖对桩基础内力与位移的影响[J].中国安全生产科学技术,2020,16(2):79-84.[doi:10.11731/j.issn.1673-193x.2020.02.013]
　CHENG Weikang,ZHENG Xuanrong,LYU Gao,et al.Influence of doubleline shield tunnel excavation on internal force and displacement of pile foundation in Zhengzhou[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(2):79-84.[doi:10.11731/j.issn.1673-193x.2020.02.013]
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郑州地区双线盾构隧道开挖对桩基础内力与位移的影响
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年2期
页码:
79-84
栏目:
职业安全卫生管理与技术
出版日期:
2020-02-29

文章信息/Info

Title:
Influence of doubleline shield tunnel excavation on internal force and displacement of pile foundation in Zhengzhou
文章编号:
1673-193X(2020)-02-0079-06
作者:
成炜康; 郑选荣; 吕高; 薛瑞蕾
(1.西安科技大学 建筑与土木工程学院，陕西 西安 710054；
2.西安石油大学 机械工程学院，陕西 西安 710065)
Author(s):
CHENG Weikang;  ZHENG Xuanrong;  LYU Gao;  XUE Ruilei
(1.College of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China;
2.Mechanical Engineering College,Xi’an Shiyou University,Xi’an Shaanxi 710065,China)
关键词:
下穿建筑物; 有限元法; 粉细砂地区; 桩基础
Keywords:
underpass building;  finite element method;  silty fine sand area;  pile foundation
分类号:
X947
DOI:
10.11731/j.issn.1673-193x.2020.02.013
文献标志码:
A
摘要:
为研究粉细砂层地区盾构隧道下穿建筑物对桩基础内力与位移的影响，以郑州粉细砂层地区盾构施工为例，采用有限元软件 MIDAS-GTS NX 建立地铁盾构隧道下穿建筑物的三维实体模型，分析盾构隧道下穿建筑物的不同阶段对桩体位移、内力的影响。结果表明：在郑州粉细砂层地区进行盾构施工时，盾构工程对桩基础底部位移的影响较大，位移最大值大多发生在桩底；盾构施工对桩身轴力的影响表现为桩身轴力最大值位于距隧道1倍洞径范围内。在进行双线盾构隧道施工时，应在临近、远离2个阶段注意工程的安全与防护问题，并采取相应的预防和保护措施。
Abstract:
In order to study the influence of shield tunnel underpass the building on the internal force and displacement of pile foundation in the silty fine sand area,taking the shield construction in Zhengzhou silty sand area as an example.A threedimensional solid model of subway shield tunnel underpass building was established by using the finite element software MIDAS-GTS NX,and the influence of shield tunnel underpass building on the internal force and displacement of pile in different stages was analyzed.The results showed that during the shield tunneling process in the silty fine sand area of Zhengzhou,Shield construction has a great influence on the displacement of the bottom of pile foundation,and the maximum displacement occurs at the bottom of pile; the influence of shield construction on the axial force of pile body is shown as that the maximum value of the axial force of pile body is within 1 time of the tunnel diameter.In the construction of double line shield tunnel,we should pay more attention to the safety and protection of the project in the near and far phases,and take corresponding prevention and protection measures.

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备注/Memo

备注/Memo:
收稿日期： 2019-10-30
* 基金项目： 陕西省自然科学基金项目（2018JQ5203）
作者简介： 成炜康，硕士研究生，主要研究方向为地铁隧道数值模拟及安全评估。
更新日期/Last Update: 2020-03-16