|本期目录/Table of Contents|

[1]赖金星,刘厚全,汪珂,等.盾构近接立交桥基础安全影响三维数值分析[J].中国安全生产科学技术,2017,13(3):29-35.[doi:10.11731/j.issn.1673-193x.2017.03.004]
　LAI Jinxing,LIU Houquan,WANG Ke,et al.Three-dimensional numerical analysis on safety influence of shield tunneling construction on the foundation of adjacent overpass[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(3):29-35.[doi:10.11731/j.issn.1673-193x.2017.03.004]
点击复制

盾构近接立交桥基础安全影响三维数值分析
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年3期
页码:
29-35
栏目:
学术论著
出版日期:
2017-03-31

文章信息/Info

Title:
Three-dimensional numerical analysis on safety influence of shield tunneling construction on the foundation of adjacent overpass
文章编号:
1673-193X(2017)-03-0029-07
作者:
赖金星1; 刘厚全1; 汪珂2; 冯志华1; 向阳2
1. 长安大学 公路学院，陕西 西安 710064； 2. 中铁第一勘察设计院集团有限公司，陕西 西安710043
Author(s):
LAI Jinxing1;  LIU Houquan1;  WANG Ke2;  FENG Zhihua1;  XIANG Yang2
1. School of Highway, Chang'an University, Xi'an Shaanxi 710064, China; 2. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an Shaanxi 710043, China
关键词:
盾构; 近接; 有限元; 桩基础; 位移
Keywords:
shield tunneling;  adjacency;  finite element;  pile foundation;  displacement
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2017.03.004
文献标志码:
A
摘要:
为了提高盾构近距离穿越立交桥群桩基础施工中的安全性，采用有限元方法建立三维数值模型对盾构穿越群桩基础过程进行动态模拟，分析了群桩基础水平位移的变化规律以及地表受盾构影响的变形规律。结果表明：盾构掘进对桩基础水平位移影响最大，且水平位移增长过程分为盾构到达前、穿越时以及注浆阶段3个阶段，3个阶段水平位移值比例为6∶3∶1；盾构在竖直方向对桩基础水平位移的影响范围为1D（盾构直径），水平方向为3D；此外，处于盾构左右双线之间的桥梁结构由于受到土层和桩基础沉降的双重影响，会产生较大的位移，实际施工中建议加强该区域桥梁结构的监测。
Abstract:
To improve the safety of shield tunneling construction crossing the group piles foundation of adjacent overpass, a three-dimensional numerical model was established by using the finite element method to simulate the crossing process of shield tunneling dynamically. The variation in the horizontal displacement of group piles foundation and the deformation of ground surface influenced by shield tunneling were analyzed. The results showed that the shield tunneling has the greatest influence on the horizontal displacement of pile foundation. The growth process of horizontal displacement can be divided into three stages, including before shield tunneling reaching, during crossing and grouting, and the ratio of horizontal displacement in the three stages is 6:3:1. The influence range of shield tunneling on the horizontal displacement of pile foundation in the vertical direction is 1D (shield diameter), which is 3D in the horizontal direction. Additionally, due to the dual influence of soil layer and pile foundation settlement, the bridge structure between the left and the right side of shield tunneling behaves a larger displacement. The monitoring of bridge structure in this region should be strengthened in the actual construction.

参考文献/References:

［1］LAI Jinxing, NIU Fangyuan, WANG Ke, et al. Dynamic effect of metro?induced vibration on the rammed earth base of the Bell Tower ［J］. Springer Plus, 2016, 5： 19.
［2］张恒，陈寿根，邓稀肥. 盾构法施工对地表及桥梁桩基的影响分析［J］. 地下空间与工程学报，2011，7(3)：552-557. ZHANG Heng, CHEN Shougen, DENG Xifei. Analysis of influence of shield tunneling on ground and bridge pile［J］. Chinese Journal of Underground Space and Engineering, 2011, 7(3): 552-557.
［3］Cheng C Y, Dasari G R, Chow Y K, et al. Finite element analysis of tunnel-soil-pile interaction using displacement controlled model ［J］. Tunnelling and Underground Space Technology，2007, 22(4): 450-466.
［4］Loganathan N, Poulos H G. Analytical prediction for tunnelling induced ground movement in clays ［J］. J. Geotech. Geoenviron. Eng., 1998, 124(9):846-856.
［5］王明年，崔光耀，喻波. 广州地铁西村站近接高架桥桩基影响分区及应用研究［J］. 岩石力学与工程学报，2009，28(7)：1396-1404. WANG Mingnian, CUI Guangyao, YU Bo. Research on influential partition and application of adjacent viaduct pile foundations in Xicun station of Guangzhou metro ［J］. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(7): 1396-1404.
［6］Morton J D, King K H. Effects of tunneling on the bearing capacity and settlement of piled foundations ［C］. Proceedings, Tunneling 79. London: IMM, 1979: 57-68．
［7］Loganathan N. Centrifuge model testing of tunneling-induced ground and pile foundations ［J］. Geotechnique, 2000, 50(3): 283-294．
［8］Jacobsz S W, Standing J R and Mair R J. Centrifuge modeling of tunneling near driven piles ［J］. Soil and Foundations, 2004, 44(1): 49-56.
［9］Ong C W, Leung C F, Yong K Y, et al. Centrifuge modeling of pile responses due to tunneling in clay ［J］. Underground Singapore, 2005， 128(4): 327-336．
［10］袁海平，王斌，朱大勇，等. 盾构近距侧穿高架桥桩的施工力学行为研究［J］. 岩石力学与工程学报，2014，33(7)：1458-1464. YUAN Haiping, WANG Bin, ZHU Dayong, et al. Research on influential partition and application of adjacent viaduct pile foundations in Xicun station of Guangzhou metro ［J］. Chinese Journal of Rock Mechanics and Engineering, 2014, 38(7): 1458-1464.
［11］郭一斌，张立明，郑刚，等. 盾构施工对大型立交桥超长桩工作性状的影响［J］. 岩土力学, 2014, 35(10): 2942-2948. GUO Yibin, ZHANG Liming, ZHENG Gang, et al. Influence of shield tunneling on working performance of large interchange’s super-long piles ［J］. Rock and Soil Mechanics, 2014, 35(10): 2942-2948.
［12］郑熹光，何平，张安琪，等. 地铁施工对邻近桥梁桩基础内力影响分析［J］. 现代隧道技术，2015，52(3)：110-116. ZHENG Xiguang, HE Ping, ZHANG Anqi, et al. Influence of metro construction on the internal force of adjacent bridge pile foundations［J］. Modern Tunnelling Technology, 2015, 52(3): 110-116.
［13］杨永平，周顺华，庄丽. 软土地区地铁盾构区间隧道近接桩基数值分析［J］. 地下空间与工程学报，2006，2(4)：561-565. YANG Yongping, ZHOU Shunhua, ZHUANG Li. Numerical simulation analysis on influence of shield excavation tunnel close to the piles of a building ［J］. Chinese Journal of Underground Space and Engineering, 2006, 2(4): 561-565.
［14］朱逢斌，杨平. ONG C.W. 盾构隧道开挖对邻近桩基影响数值分析［J］. 岩土工程学报，2008，30(2): 299-302． ZHU Fengbin, YANG Ping, ONG C.W. Numerical analysis on influence of shield tunnel excavation to neighboring piles ［J］. Chinese Journal of Geotechnical Engineering, 2008, 30(2): 299- 302.
［15］何海健，项彦勇，刘维宁. 地铁施工引起邻近桥梁桩基差异沉降的概率分析［J］. 岩石力学与工程学报，2007，26(S1)：3257-3265. HE Haijian, XIANG Yanyong, LIU Weining. Probabilistic analysis of tunneling-induced differential settlement of a pile-supported urban overpass bridge ［J］. Chinese Journal of Rock Mechanics and Engineering，2007, 26(S1): 3257-3265.
［16］方勇, 何川. 地铁盾构隧道施工对近接桩基的影响研究［J］. 现代隧道技术, 2008, 45(1): 42-47. FANG Yong, HE Chuan. Study on the influence of metro shield tunneling on close-by pile foundation ［J］. Modern Tunnelling Technology, 2008, 45(1): 42-47.
［17］朱百里, 沈珠江. 计算土力学［M］. 上海：上海科学技术出版社, 1990.
［18］董必昌. 岩土工程仿真中接触单元和相关参数研究［D］. 武汉, 华中科技大学, 2005.

相似文献/References:

[1]祝和意.盾构隧道施工引起地表沉降分析与处置[J].中国安全生产科学技术,2011,7(4):130.
　ZHU He-yi.Analysis and disposal of ground surface?subsidence by tunnel shielding construction [J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2011,7(3):130.
[2]吴刘远见,温晓虎,邱昭润,等.地铁施工盾构机开仓气体安全检测分析[J].中国安全生产科学技术,2010,6(2):132.
　WU Liu Yuan-jian,WEN Xiao-hu,QIU Zhao-run,et al.Metro construction shield machine unlocked the cells and gas test results of the study[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2010,6(3):132.
[3]杜晓伟,高永涛.软土地区大直径盾构对邻近桩基础建筑物影响研究[J].中国安全生产科学技术,2014,10(12):131.[doi:10.11731/j.issn.1673-193x.2014.12.022]
　DU Xiao-wei,GAO Yong-tao.Study on influence to pile foundation buildings by big diameter shield tunnelling construction in soft soil area[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2014,10(3):131.[doi:10.11731/j.issn.1673-193x.2014.12.022]
[4]刘欣然,李兆平,张存,等.考虑地层蠕变特性的盾构隧道施工对邻近桥桩影响和保护措施*[J].中国安全生产科学技术,2021,17(10):79.[doi:10.11731/j.issn.1673-193x.2021.10.012]
　LIU Xinran,LI Zhaoping,ZHANG Cun,et al.Influence and protection measures of shield tunnel construction on adjacent bridge piles considering creep characteristics of stratum[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(3):79.[doi:10.11731/j.issn.1673-193x.2021.10.012]

备注/Memo

备注/Memo:
陕西省科技厅社会发展科技攻关项目(2016SF-412)；中央高校基本科研业务费专项资金资助项目(310821172004,310821153312,310821165011)
更新日期/Last Update: 2017-03-30