[1]朱 彬,王明明.偏压荷载下地铁隧道变形特征及预测研究[J].西安科技大学学报,2015,(04):458-466.
 ZHU Bin,WANG Ming-ming.Characteristics and forecast of deformation for shallow buried tunnel[J].Journal of Xi'an University of Science and Technology,2015,(04):458-466.
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偏压荷载下地铁隧道变形特征及预测研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年04期
页码:
458-466
栏目:
出版日期:
2015-08-30

文章信息/Info

Title:
Characteristics and forecast of deformation for shallow buried tunnel
文章编号:
10.13800/j.cnki.xakjdxxb.2015.0410
作者:
朱 彬12王明明1
1.西安科技大学 建筑与土木工程学院,陕西 西安 710054; 2.长安大学 公路学院,陕西 西安 710064
Author(s):
ZHU Bin12WANG Ming-ming1
1.College of Civil and Architectural Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.School of Highway,Chang'an University,Xi'an 710064,China
关键词:
隧道施工 变形预测 衬砌受力 数值模拟 时间序列
Keywords:
tunnel construction deformation forecast stress of lining numerical simulation time series
分类号:
U 231.3
文献标志码:
A
摘要:
以某市地铁区间隧道为研究对象,使用FLAC3D软件模拟分析了桥梁基础下浅埋暗挖法施工过程中,地铁隧道周边土体的变形和衬砌应力分布情况; 同时建立了隧道拱顶沉降值的时间序列模型,并预测了拱顶沉降的变化趋势。结果表明:由于上部桥梁基础偏压和土体强度较低的影响,在开挖完成后隧道的右侧地层出现了较大的变形; 同时在隧道初次衬砌两侧边墙的中部也出现了较大的应力值,对于这些隧道部位可采用锚杆注浆加固或采用钢支撑进行加强支护,以确保施工过程安全可靠; 另一方面,基于ARMA模型的时间序列分析法可以较好地模拟隧道结构的复杂变形,为科学分析隧道变形特点和较准确地预测变形进行了有益的探索。
Abstract:
Study on the characteristic of lining stress and deformation forecast of shallow buried tunnel under the foundation of urban bridge in Line No.3 of a city metro.By using the software FLAC3D,the numerical simulation result showed that,there was greater deformation on the right side of the tunnel since the pressure of upper foundation of bridge.In the meantime,the first lining showed greater stress on the both sides in the middle of side wall.For those part of tunnel construction,the paper suggests that monitoring should be strengthened.Also,if necessary,lining grouting and steel bracing should be used to reinforce support of the tunnel.Meanwhile,based on ARMA model of time series analysis method,the complex deformation of the tunnel structure can be simulated correctly.It is an useful exploration to accurately predict the deformation by this model.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-04-20 责任编辑:高 佳 基金项目:国家自然科学基金(41172262); 陕西省教育厅科学研究计划项目(11JK0779) 通讯作者:朱 彬(1978-),男,陕西西安人,讲师,E-mail:Diskzhu@sina.com
更新日期/Last Update: 1900-01-01