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[1]郑选荣,祁嘉辉,成炜康,等.南通富水砂层盾构隧道开挖对邻近桩基影响分析*[J].中国安全生产科学技术,2022,18(1):146-151.[doi:10.11731/j.issn.1673-193x.2022.01.023]
　ZHENG Xuanrong,QI Jiahui,CHENG Weikang,et al.Analysis on influence of shield tunnel excavation in Nantong water-rich sand stratum on adjacent pile foundations[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(1):146-151.[doi:10.11731/j.issn.1673-193x.2022.01.023]
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南通富水砂层盾构隧道开挖对邻近桩基影响分析*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年1期
页码:
146-151
栏目:
职业安全卫生管理与技术
出版日期:
2022-01-31

文章信息/Info

Title:
Analysis on influence of shield tunnel excavation in Nantong water-rich sand stratum on adjacent pile foundations
文章编号:
1673-193X(2022)-01-0146-06
作者:
郑选荣; 祁嘉辉; 成炜康; 杨康; 陈箐芮; 薛瑞蕾
(西安科技大学 建筑与土木工程学院，陕西 西安 710054 )
Author(s):
ZHENG Xuanrong;  QI Jiahui;  CHENG Weikang;  YANG Kang;  CHEN Qingrui;  XUE Ruilei
(College of Architecture and Civil Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)
关键词:
富水砂层; 盾构隧道; 桩基础; 受力变形
Keywords:
water-rich sand stratum;  shield tunnel;  pile foundation;  deformation under force
分类号:
X947
DOI:
10.11731/j.issn.1673-193x.2022.01.023
文献标志码:
A
摘要:
为有效控制盾构隧道近距侧穿既有桥梁桩基施工，给桩基造成一定安全风险，本文依托南通地铁1号线区间盾构工程，建立三维有限元模型，基于流固耦合理论分析盾构施工对桩基水平位移、内力、地表沉降的影响，并验证计算的准确性。结果表明：盾构开挖面距离桩基2D范围内，盾构施工对桩基产生的影响占总水平位移的85%；桩基产生的最大水平位移为16.13 mm；盾构施工引起桩基剪力和弯矩的变化量明显。在富水砂层类似工程施工中应加强监测，同时采取优化盾构掘进参数和地层加固等措施，减小盾构施工对桩基影响。
Abstract:
In order to effectively control the safety risk of pile foundations caused by the construction of shield tunnel side-crossing the existing bridge pile foundation at close distance,relying on the interval shield engineering of Nantong Metro Line 1,a three-dimensional finite element model was established.Based on the theory of fluid-solid coupling,the influence of shield construction on the horizontal displacement,internal force and ground settlement of the pile foundations was analyzed,and the accuracy of calculation was verified.The results showed that the distances between the shield excavation surface and the pile foundations were within 2D,and the influence of shield construction on the pile foundations reached 85% of the total horizontal displacement.The maximum horizontal displacement of the pile foundations was 16.13 mm.The amount of change in the shearing force and bending moment of pile foundations caused by shield construction was obvious.During the construction of similar projects in the water-rich sand stratum,the monitoring should be strengthened,and the measures such as the optimization of shield tunneling parameters and ground reinforcement should be taken to reduce the influence of shield construction on the pile foundations.

参考文献/References:

［1］何川,封坤,方勇.盾构法修建地铁隧道的技术现状与展望［J］.西南交通大学学报,2015,50(1):97-109. HE Chuan,FENG Kun,FANG Yong.Review and prospects on constructing technologies of metro tunnels using shield tunnelling method ［J］.Journal of Southwest Jiaotong University,2015,50(1):97-109.
［2］LOGANATHAN N,POULOS H G.Analytical prediction for tunnelling induced ground movement in clays ［J］.Geotech Geoenviron Engineering,1998,124(9):846-856.
［3］可文海,管凌霄,薛齐,等.盾构隧道开挖引起的邻近群桩竖向位移研究［J］.中南大学学报(自然科学版),2020,51(8):2353-2360. KE Wenhai,GUAN Lingxiao,XUE Qi,et al.Study on the vertical displacement of adjacent pile groups caused by shield tunnel excavation［J］.Journal of Central South University (Natural Science Edition),2020,51(8):2353-2360.
［4］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(2):298-302. ZHU Fengbin,YANG Ping,ONG C W.Numerical analysis of the influence of shield tunnel excavation on adjacent pile foundations［J］.Chinese Journal of Geotechnical Engineering,2008(2):298-302.
［5］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):1457-1464. YUAN Haiping,WANG Bin,ZHU Dayong,et al.Study on the construction mechanics behavior of shield tunnel passing through viaduct piles at close range［J］.Chinese Journal of Rock Mechanics and Engineering,2014,33(7):1457-1464.
［6］黄明辉,陈乐意.富水地层盾构掘进下近接桩-土力学响应分析［J］.铁道标准设计,2019,63(3):112-118. HUANG Minghui,CHEN Leyi.Analysis of adjacent pile-soil mechanics response under shield tunneling in water-rich strata［J］.Railway Standard Design,2019,63(3):112-118.
［7］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. LAI Jinxing,LIU Houquan,WANG Ke,et al.Three-dimensional numerical analysis of the safety impact of shield close to the overpass foundation［J］.Journal of Safety Science and Technology,2017,13(3):29-35.
［8］魏亚辉,王亚琼,毛月,等.基于修正剑桥本构模型的盾构隧道开挖对邻近桩基影响分析［J］.公路交通科技,2020,37(6):97-103，111. WEI Yahui,WANG Yaqiong,MAO Yue,et al.Analysis of the impact of shield tunnel excavation on adjacent pile foundations based on the modified Cambridge constitutive model［J］.Highway and Transportation Science and Technology,2020,37(6):97-103，111.
［9］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. CHENG Weikang,ZHENG Xuanrong,LYU Gao,et al.The influence of double-track shield tunnel excavation in Zhengzhou area on the internal force and displacement of pile foundation［J］.Journal of Safety Science and Technology,2020,16(2):79-84.
［10］ZHANG Y T,NG C W W.Centrifuge modeling of single pile response due to lateral cyclic loading in kaolin clay［J］.Marine Georesources Geotechnology，2017,35(7):999-1007.
［11］丁智,张霄.桩基施工对邻近既有地铁隧道影响的数值分析［J］.中南大学学报(自然科学版),2019,50(2):390-399. DING Zhi,ZHANG Xiao.Numerical analysis of the influence of pile foundation construction on adjacent existing subway tunnels［J］.Journal of Central South University (Natural Science Edition),2019,50(2):390-399.
［12］王炳军,李宁,柳厚祥,等.地铁隧道盾构法施工对桩基变形与内力的影响［J］.铁道科学与工程学报,2006(3):35-40. WANG Bingjun,LI Ning,LIU Houxiang,et al.The influence of subway tunnel shield construction on pile foundation deformation and internal force［J］.Journal of Railway Science and Engineering,2006(3):35-40.
［13］李新星,杨志豪.盾构近距离穿越高架桩基的施工影响与保护措施［J］.岩土力学,2015,36(S1):537-541. LI Xinxing,YANG Zhihao.Construction influence and protection measures of shield tunneling through elevated pile foundation at close range［J］.Rock and Soil Mechanics,2015,36(S1):537-541.
［14］程康,俞帆,梁荣柱,等.考虑桩基剪切效应的盾构开挖对邻近桩基水平向变形分析［J］.岩土工程学报,2018,40(S2):178-182. CHENG Kang,YU Fan,LIANG Rongzhu,et al.Analysis of horizontal deformation of adjacent pile foundation by shield excavation considering the pile foundation shear effect［J］.Chinese Journal of Geotechnical Engineering,2018,40(S2):178-182.
［15］马亚丽.盾构隧道开挖对邻近桩基影响的数值模拟研究［D］.大连：大连理工大学,2012.
［16］熊志辉.地铁盾构施工对邻近桥梁桩基的影响及防护研究［D］.西安：西安科技大学,2017.
［17］乔世杰.盾构隧道施工对邻近桥桩的影响研究［D］.北京：中国地质大学(北京),2020.

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备注/Memo

备注/Memo:
收稿日期： 2021-04-13
* 基金项目： 国家自然科学基金项目（42072319）
作者简介： 郑选荣，博士，副教授，主要研究方向为地下工程及防灾减灾工程。
通信作者： 祁嘉辉，硕士研究生，主要研究方向为地下工程及防灾减灾工程。
更新日期/Last Update: 2022-02-19