全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

注浆加固非饱和土地层控制大断面地铁隧道施工沉降效果分析

Keywords: 地铁施工,注浆,微观结构,沉降

Full-Text   Cite this paper   Add to My Lib

Abstract:

依托北京地铁十号线花园东路站—八达岭高速站区间隧道的施工建设,通过实地取样、电镜扫描、室内直接剪切和压缩试验等方法研究了注浆与未注浆加固土体的微观结构和力学性质的差异性,探讨了非饱和土体注浆加固机理,并将相关指标应用到计算模型的参数取值中.结合以上研究成果和现场勘察资料,利用三维有限差分软件FLAC3D建立反映地层实际分布状况的数值分析模型,分析了未注浆与注浆后施工隧道围岩内的应力、竖向位移情况,对比分析了沉降实际监测数据,得出后续数值模拟施工步序,为施工步序优化提供了依据.

References

[1]  蔡向民,栾英波,郭高轩,等.北京平原地区地质系统[J].城市地质,2009,4(3):6-12.CAI Xiang-min,LUAN Ying-bo,GUO Gao-xuan,et al.Geological system in Beijing plain area[J].UrbanGeology,2009,4(3):6-12.(in Chinese)
[2]  田明中,程捷.第四纪地质学与地貌学[M].北京:地质出版社,2009:30-35.
[3]  岩土注浆理论与工程实践协作组.岩土注浆理论与工程实例[M].北京:科学出版社,2001:76-80.
[4]  黄明琦,郭衍敬,张斌.软弱围岩大断面隧道径向注浆变形的控制[J].北京工业大学学报,2007,33(5):512-516.HUANG Ming-qi,GUO Yan-jing,ZHANG Bin.Deformation control by radial grouting in large-section andweak surrounding rock tunnel[J].Journal of BeijingUniversity of technology,2007,33(5):512-516.(inChinese)
[5]  王桂平,朱苦竹.管棚注浆技术在公路隧道塌方治理中的应用[J].西部探矿工程,2005,17(12):167-168.WANG Gui-ping,ZHU Ku-zhu.Pipe roof collapsed tunnelgrouting technique in the application of highwaymanagement[J].West-china Exploration Engineering,2005,17(12):167-168.(in Chinese)
[6]  李河玉.小导管注浆技术及在隧道和地下工程中的应用[D].成都:西南交通大学土木工程学院,2007.LI He-yu.Pipe grouting technology and the application inthe tunnel and underground engineering[D].Chengdu:School of Civil Engineering,Southwest Jiaotong University,2007.(in Chinese)
[7]  孙钧.海底隧道工程设计施工若干关键技术的商榷[J].岩石力学与工程学报,2006,25(8):1513-1521.SUN Jun.Discussion on some key technical issues fordesign and construction of undersea tunnels[J].ChineseJournal of Rock Mechanics and Engineering,2006,25(8):1513-1521.(in Chinese)
[8]  管林波.主应力轴旋转对原状软粘土宏观变形和微观结构影响的试验研究[D].杭州:浙江大学土木建筑工程学院,2007.GUAN Lin-bo.Experimental study on the deformation andmicrostructure of intact soft clay under principal stressrotation[D].Hangzhou:College of Civil Engineering andArchitecture,Zhejiang University,2007.(in Chinese)
[9]  周萃英.土体微观结构研究与土力学的发展方向—若干进展与思考[J].地球科学—中国地质大学学报,2000,25(2):215-220.ZHOU Cui-ying.Research into soil mass microstructureand some progresses on soil mechanics[J].EarthScience—Journal of China University of Geosciences,2000,25(2):215-220.(in Chinese)
[10]  王尔觉.隧道复杂地质段沉降数值模拟研究[J].铁道建设,2008(4):31-35.WANG Er-jue.Settlement of the tunnel complexnumerical simulation of geological section[J].RailwayConstruction,2008(4):31–35.(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133