[1]朱逢斌,缪林昌.盾构隧道邻近建筑物施工的地面变形分析及预测[J].东南大学学报(自然科学版),2013,43(4):856-862.[doi:10.3969/j.issn.1001-0505.2013.04.034]
 Zhu Fengbin,Miao Linchang.Analysis and prediction of ground deformation caused by shield tunnelling adjacent to existing building[J].Journal of Southeast University (Natural Science Edition),2013,43(4):856-862.[doi:10.3969/j.issn.1001-0505.2013.04.034]
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盾构隧道邻近建筑物施工的地面变形分析及预测()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第4期
页码:
856-862
栏目:
交通运输工程
出版日期:
2013-07-20

文章信息/Info

Title:
Analysis and prediction of ground deformation caused by shield tunnelling adjacent to existing building
作者:
朱逢斌12缪林昌1
1东南大学岩土工程研究所, 南京210096; 2苏州科技学院土木工程学院, 苏州215011
Author(s):
Zhu Fengbin1 2 Miao Linchang1
1 Institute of Geotechnical Engineering, Southeast University, Nanjing 210096, China
2 School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, China
关键词:
盾构隧道 既有建筑物 共同作用 三维有限元方法 敏感性因素 地表沉降 挠曲比
Keywords:
shield tunnel existing building interaction three dimensional finite element method(3D FEM) sensitive factor ground settlement deflection ratio
分类号:
U452
DOI:
10.3969/j.issn.1001-0505.2013.04.034
摘要:
为了研究盾构隧道开挖对既有建筑物周边地面沉降的影响,采用考虑隧道-土体-建筑物共同作用的三维有限元计算法,对其进行敏感性因素分析,并根据经验公式对考虑建筑刚度约束作用的地面挠曲变形进行预测.研究结果表明,地面既有建筑物对盾构隧道施工诱发的地面沉降具有一定的约束作用,且建筑物的基础形式、刚度和长宽比、隧道埋深、隧道与建筑物的夹角和侧向偏心距等均对该约束作用产生了不同程度的影响效应.考虑建筑刚度的经验公式能方便地预测地面的挠曲变形;但由于没有考虑建筑物的自重作用,该经验公式放大了建筑刚度对地面变形的约束效应.
Abstract:
In order to investigate the influence of shield tunnelling on the ground settlement of the adjacent existing building, several typical sensitive factors are analyzed by using the three dimensional finite element method(3D FEM)considering the interaction of the shield tunnel, soil and existing building. The ground surface deflection restricted by the stiffness of the existing building is predicted by empirical formulas. The results show that the ground settlement caused by shield tunneling is restricted by the existing building, which is influenced differently by the foundation type, stiffness, and aspect ratio of the building, the tunnel depth, and the angle and lateral distance between the tunnel and the building. The empirical formulas considering the building stiffness can be used to predict the ground deflection conveniently. However, the results deduced from the empirical formulas may enlarge the confinement effect on the ground deformation since the method does not take the deadweight of the existing building into account.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 朱逢斌(1981—),男,博士生,讲师, zfb_njfu@hotmail.com.
基金项目: 国家自然科学基金资助项目(51278099)、住房和城乡建设部科学技术计划资助项目(2012-K3-35).
引文格式: 朱逢斌,缪林昌.盾构隧道邻近建筑物施工的地面变形分析及预测[J].东南大学学报:自然科学版,2013,43(4):856-862. [doi:10.3969/j.issn.1001-0505.2013.04.034]
更新日期/Last Update: 2013-07-20