|本期目录/Table of Contents|

[1]蒙国往,农忠建,吴波,等.地铁车站深基坑开挖变形及数值模拟分析*[J].中国安全生产科学技术,2020,16(7):145-151.[doi:10.11731/j.issn.1673-193x.2020.07.023]
　MENG Guowang,NONG Zhongjian,WU Bo,et al.Excavation deformation and numerical simulation analysis of deep foundation pit in subway station[J].Journal of Safety Science and Technology,2020,16(7):145-151.[doi:10.11731/j.issn.1673-193x.2020.07.023]
点击复制

地铁车站深基坑开挖变形及数值模拟分析*

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

卷:
16
期数:
2020年7期
页码:
145-151
栏目:
职业安全卫生管理与技术
出版日期:
2020-07-30

文章信息/Info

Title:
Excavation deformation and numerical simulation analysis of deep foundation pit in subway station
文章编号:
1673-193X(2020)-07-0145-07
作者:
蒙国往; 农忠建; 吴波; 黄劲松; 韦汉
（1.广西大学 土木建筑工程学院，广西 南宁 530004;
2.广西大学 广西防灾减灾与工程安全重点实验室，广西 南宁 530004;
3.广西大学 教育部工程防灾与结构安全重点实验室，广西 南宁 530004）
Author(s):
MENG Guowang;  NONG Zhongjian;  WU Bo;  HUANG Jinsong;  WEI Han
(1.College of Civil Engineering and Architecture,Guangxi University,Nanning Guangxi 530004,China;
2.Key Laboratory of Disaster Prevention and Engineering Safety of Guangxi,Guangxi University,Nanning Guangxi 530004,China;
3.Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education,Guangxi University,Nanning Guangxi 530004,China)
关键词:
地铁车站; 深基坑; 时空效应; 变形; 数值模拟
Keywords:
subway station;  deep foundation pit;  timespace effect;  deformation;  numerical simulation
分类号:
X947；TU473
DOI:
10.11731/j.issn.1673-193x.2020.07.023
文献标志码:
A
摘要:
为研究土岩复合地层地铁车站深基坑变形时空效应特征与规律，以南宁地铁某车站基坑为研究背景，在不同施工工况下对车站基坑进行有限元数值模拟，并结合实测数据进行对比。结果表明：数值计算值与现场实测值差距较小，2种变形规律接近一致，有限元计算结果合理。围护结构水平位移随施工进行逐渐增大，呈现鼓肚形状，水平位移由桩顶移动到桩身，最大位移稳定在桩身0.5~0.75H处；围护结构受力集中在第2道和第3道内支撑位置；基坑地表沉降中，长边方向的沉降比短边方向沉降明显，空间效应显著；在地铁车站深基坑中，基于时空效应机理，考虑施工影响，在施工过程中调整施工工序和参数，对基坑稳定和控制变形具有重要指导意义。
Abstract:
In order to study the timespace effect characteristics and laws about the deformation of deep foundation pit in the subway station with the soil and rock composite stratum,taking the foundation pit of a subway station in Nanning as the research background,the finite element numerical simulation on the foundation pit of station under different construction conditions was carried out,and the results were compared with the measured data.The results showed that the difference between the numerical value and the field measured value was small,the two deformation laws were close to the same,and the calculation results of finite element were reasonable.The horizontal displacement of retaining structure gradually increased with the construction and presented a bulging shape.The horizontal displacement moved from the pile top to the pile body,and the maximum displacement was stable at 0.5~0.75 H of the pile body.The stress of the retaining structure was concentrated in the second and third internal supporting positions.In the ground settlement of foundation pit,the long side settlement was more obvious than the short side settlement,and the spatial effect was significant.In the deep foundation pit of subway station,based on the mechanism of timespace effect and considering the influence of construction,adjusting the construction process and parameters during the construction process has important guiding significance for the stability of foundation pit and the control of deformation.

参考文献/References:

［1］中国城市轨道交通协会.城市轨道交通2018年度统计和分析报告［J］.城市轨道交通，2018，38（4）:18-36. China Urban Rail Transit Association.Statistics and analysis report of urban rail transit in 2018 ［J］.Urban Rail Transit,2018,38（4）:18-36.
［2］刘国斌,刘建航.基坑工程手册(第二版)［M］.北京:中国建筑工业出版社,2009.
［3］PECK B.Deep excavations and tunneling in soft ground ［C］ // Proceedings of 7th International Conference off Soil Mechanics and Foundation Engineering.Mexico:State of-Art Volume，1969:225-290.
［4］CLOUGH G W G,O’ROURKE T T D.Construction induced movements ofinsitu walls ［C］ //Design and Performance of Earth Retaining Structures.Washington D.C.:ASCE，1990:439-470.
［5］徐中华，王建华，王卫东.上海地区深基坑工程中地下连续墙的变形性状［J］.土木工程学报，2008，41（8）:81-86. XU Zhonghua,WANG Jianhua,WANG Weidong.Deformation behavior of diaphragm walls in deep excavations in Shanghai ［J］.China Civil Engineering Journal,2008,41(8):81-86.
［6］王卫东，徐中华，王建华.上海地区深基坑周边地表变形性状实测统计分析［J］.岩土工程学报，2011，33（11）:1659-1666. WANG Weidong,XU Zhonghua,WANG Jianhua.Statistical analysis of characteristics of ground surface settlement caused by deep excavations in Shanghai soft soils ［J］.Chinese Journal of Geotechnical Engineering，2011，33（11）:1659-1666.
［7］刘念武，陈奕天，龚晓南，等.软土深开挖致地铁车站基坑及邻近建筑变形特性研究［J］.岩土力学，2019，40（4）:1515-1525. LIU Nianwu,CHEN Yitian,GONG Xiaonan,et al.Analysis of deformation characteristics of foundation pit of metro station and adjacent buildings induced by deep excavation in soft soil ［J］.Rock and Soil Mechanics,2019，40（4）:1515-1525.
［8］胡之锋，陈健，周兴涛,等.钢支撑滞后架设对深基坑围护结构及地表沉降的影响［J］.科学技术与工程，2019，19（1）:213-220. HU Zhifeng,CHEN Jian,ZHOU Xingtao,et al.Influence of delaying installation of steel bracing on retaining wall and ground settlement of deep excavation ［J］.Science Technology and Engineering,2019,19（1）:213-220.
［9］周勇，叶炜钠，高升.兰州地铁某车站深基坑开挖变形特性分析［J］.岩土工程学报，2018，40（S1）:141-146. ZHOU Yong,YE Weina,GAO Sheng.Deformation characteristicsof excavation of deepfoundation pitata metro station in Lanzhou ［J］.Chinese Journal of Geotechnical Engineering，2018，40（S1）:141-146.
［10］高丙丽,张琨,任建喜，等.西安地铁车站深基坑变形规律FLAC模拟研究［J］.中国安全生产科学技术,2012(3):181-186. GAO Bingli,ZHANG Kun,REN Jianxi,et al.Research on the deformation law of deep excavation supporting structure in metro station of Xi’an by FLAC simulation ［J］.Journal of Safety Science and Technology,2012(3):181-186.
［11］王桂平，刘国彬.考虑时空效应的软土深基坑变形有限元分析［J］.土木工程学报，2009，42（4）:114-118. WANG Guiping,LIU Guobin.Finite element analysis of the deformation of deep excavations considering time-space effect in soft soils ［J］.China Civil Engineering Journal,2009，42（4）:114-118.
［12］奚家米，付垒.基于时空效应的深基坑工程变形规律分析［J］.科学技术与工程，2019，19（16）:290-297. XI Jiami,FU Lei.Analysis of deformation law of deep foundation pit based on space-time effect ［J］.Science Technology and Engineering，2019，19（16）:290-297.
［13］李治.Midas/GTS在岩土工程中应用［J］.岩土力学，2013，34（8）:2413-2413. LI Zhi,Application of Midas/GTS in geotechnical engineering ［J］.Rock and Soil Mechanics，2013，34（8）:2413-2413.
［14］王勖成，邵敏.有限单元法基本原理和数值方法［M］.北京:清华大学出版社，2002.
［15］中华人民共和国住房和城乡建设部.建筑基坑工程监测技术规范：GB 50497—2009［S］.北京：中国建筑工业出版社，2009.

相似文献/References:

[1]李涛,钱霄,宋常军,等.砂卵石地层桩锚支护结构稳定性实例研究[J].中国安全生产科学技术,2011,7(1):19.
　LI Tao,QIAN Xiao,SONG Chang-jun,et al.Case study on the stability of pile-anchor supporting structure in sandy ground[J].Journal of Safety Science and Technology,2011,7(7):19.
[2]段立莉,牟林,孙扬,等.地铁深基坑变形规律及影响因素数值模拟研究[J].中国安全生产科学技术,2011,7(12):38.
　DUAN Li-li,MOU Lin,SUN Yang.Study on deformation law and influencing factors of subway deep excavation by numerical simulation[J].Journal of Safety Science and Technology,2011,7(7):38.
[3]高丙丽,张琨,任建喜,等.西安地铁车站深基坑变形规律FLAC模拟研究[J].中国安全生产科学技术,2012,8(3):179.
　GAO Bing li,ZHANG Kun,REN Jian xi,et al.Research on the deformation law of deep excavation supporting structure in metro station of Xi’an by FLAC simulation[J].Journal of Safety Science and Technology,2012,8(7):179.
[4]王迪军,罗燕萍,钟茂华,等.某地铁多层车站的防排烟系统设计及模拟研究[J].中国安全生产科学技术,2012,8(7):5.
　WANG Di jun,LUO Yan ping,ZHONG Mao hua,et al.Design of smoke control in a multilayer structure metro station and the validation[J].Journal of Safety Science and Technology,2012,8(7):5.
[5]王垚,冯超.地铁车站深基坑围护桩优化及其数值分析[J].中国安全生产科学技术,2013,9(2):54.
　WAGN Yao,FENG Chao.Numerical analysis and optimization on supporting piles in deep foundation fit of metro station[J].Journal of Safety Science and Technology,2013,9(7):54.
[6]史聪灵 ,钟茂华,何理,等.地铁车站及隧道全尺寸火灾实验研究（1）－实验设计[J].中国安全生产科学技术,2012,8(6):22.
　SHI Cong ling,ZHONG Mao hua,HE Li,et al.Investigation of fullscale fire experiments in metro station and tunnel (1) —experimental setup[J].Journal of Safety Science and Technology,2012,8(7):22.
[7]常江,张君.北京地铁义和庄站基坑支护结构及变形监测[J].中国安全生产科学技术,2009,5(3):149.
　CHANG Jiang,ZHANG Jun.Support structure and deformation monitoring of excavation pit in Yihezhuang station of Beijing subway[J].Journal of Safety Science and Technology,2009,5(7):149.
[8]黄仁东,华正阳.基于理想点法的邻近基坑高层建筑安全性评价[J].中国安全生产科学技术,2014,10(8):162.[doi:10.11731/j.issn.1673-193x.2014.08.029]
　HUANG Ren-dong,HUA Zheng-yang.Safety assessment on high-rise adjacent to foundation pit based on ideal point method[J].Journal of Safety Science and Technology,2014,10(7):162.[doi:10.11731/j.issn.1673-193x.2014.08.029]
[9]史聪灵,钟茂华,胥旋,等.地铁车站防灾系统全尺寸热烟测试（一）—四节编组地下两层岛式车站[J].中国安全生产科学技术,2014,10(9):48.[doi:10.11731/j.issn.1673-193x.2014.09.008]
　SHI Cong-ling,ZHONG Mao-hua,XU Xuan,et al.Fullscale MHST on disaster prevention system of a metro station (1) —fourmarshaling underground twolevel island station[J].Journal of Safety Science and Technology,2014,10(7):48.[doi:10.11731/j.issn.1673-193x.2014.09.008]
[10]毛正君,狄建强,樊文柱,等.共同管沟深基坑现场变形监测与数值模拟分析[J].中国安全生产科学技术,2016,12(9):103.[doi:10.11731/j.issn.1673-193x.2016.09.019]
　MAO Zhengjun,DI Jianqiang,FAN Wenzhu,et al.Field monitoring and numerical simulation analysis on deformation of deep foundation pit for utility tunnel[J].Journal of Safety Science and Technology,2016,12(7):103.[doi:10.11731/j.issn.1673-193x.2016.09.019]
[11]祝磊,彭建和,刘金龙.地铁车站深基坑建设对邻近建筑物安全的影响评估[J].中国安全生产科学技术,2015,11(12):85.[doi:10.11731/j.issn.1673-193x.2015.12.013]
　ZHU Lei,PENG Jian-he,LIU Jin-long.Evaluation on influence by construction of deep foundation pit in subway station to safety of adjacent buildings[J].Journal of Safety Science and Technology,2015,11(7):85.[doi:10.11731/j.issn.1673-193x.2015.12.013]

备注/Memo

备注/Memo:
收稿日期： 2020-01-13
* 基金项目： 国家自然科学基金项目(51678164,51478118)；广西自然科学基金项目（2018GXNSFDA138009）；广西科技计划项目（AD18126011）；广西大学科研基金项目(XTZ160590)；广西特聘专家专项资金项目(20161103)
作者简介： 蒙国往，博士，讲师，主要研究方向为隧道与地下工程技术。
通信作者： 农忠建，硕士研究生，主要研究方向为隧道与地下工程技术。
更新日期/Last Update: 2020-08-06