重庆轨道交通五号线施工安全性评价
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- 英文论文题名：Construction Safety Evaluation of Chongqing Rail Transit Line five
- 论文作者：张忠刚 ; 马兴叶 ; 臧熙玮 ; 覃亮
- 英文论文作者：ZHANG Zonggang ; MA Xingye ; ZANG Xiwei ; QIN Liang ; Erchu Co. ; Ltd of China Rail Way Tunnel Group ; School of Civil Engineering ; Southwest Jiaotong University ; China Railway four Bureau Group Fifth Engineering Co. ; Ltd. ; China Railway 3rd Bureau Group Second Engineering Co.Ltd.
- 年：2016
- 作者机构：中铁隧道集团二处有限公司;西南交通大学土木工程学院;中铁四局集团第五工程有限公司;中铁三局集团第二工程有限公司;
- 论文关键词：轨道交通 ; 近接施工 ; 数值模拟 ; 安全评价
- 英文论文关键词：Rail transit ; Close connection construction ; Numerical simulation ; Safety evaluation
- 会议召开时间：2016-10-24
- 会议录名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会论文集
- 语种：中文
- 分类号：U215.8
- 学会代码：OGTY
- 会议名称：2016中国隧道与地下工程大会（CTUC）暨中国土木工程学会隧道及地下工程分会第十九届年会
- 会议地点：中国四川成都
- 主办单位：中国土木工程学会隧道及地下工程分会
- 学会名称：中国土木工程学会
- 页数：7
- 文件大小：3489k
- 原文格式：O
- 会议级别：全国
摘要
随着有限的地上空间已经不能满足现代城市的发展需要,地下空间的开发与利用成了现代轨道交通发展的新方向。受城市地下走廊的限制等原因,在各大城市中出现了大量的近接隧道。重庆轨道交通五号线一期工程歇台子站~石桥铺站区间采用复合式TBM施工,从位于歇虎路的歇台子站大里程端起始,向西南方向行进,穿越层状泥岩及砂质泥岩地层,以平面夹角约10°下穿既有轨道交通一号线歇台子站~石桥铺站区间,其中下穿段最小竖向净距仅2.57 m,近接影响较大。本文重点以下穿段为研究对象,运用FLAC~(3D)对轨道交通五号线的施工安全进行了分析,结果表明各项控制指标都在控制标准之内,施工安全。并通过现场实测资料验证了数值模拟结果的合理性。
With the development of reform and development,the limited space on the ground can not meet the needs of the development of modern cities,the development and utilization of underground space has become a new direction of the development of modern rail transport.Due to the limitation of the urban underground corridor,a large number of near ground tunnels have appeared in each big city.Chongqing metro line five first-stage project from Xietaizi to Shiqiaopu station interval using composite TBM construction,starting from Xietaizi station which at xiehu Road to the southwest,through layered mudstone and sandy mudstone strata,with the plane angle of about 10° beneath the existing subway line Siqiaopu-Xietaizi interval,the minimum vertical spacing in only 2.57 m.which has a great influence on the near connection.This paper focuses on the under Crossing intercal.The construction safety of rail transit line five is analyzed by FLAC~(3D),and the control index is within the control standard,the construction is safe.The rationality of the numerical simulation results are verified by field test data.
With the development of reform and development,the limited space on the ground can not meet the needs of the development of modern cities,the development and utilization of underground space has become a new direction of the development of modern rail transport.Due to the limitation of the urban underground corridor,a large number of near ground tunnels have appeared in each big city.Chongqing metro line five first-stage project from Xietaizi to Shiqiaopu station interval using composite TBM construction,starting from Xietaizi station which at xiehu Road to the southwest,through layered mudstone and sandy mudstone strata,with the plane angle of about 10° beneath the existing subway line Siqiaopu-Xietaizi interval,the minimum vertical spacing in only 2.57 m.which has a great influence on the near connection.This paper focuses on the under Crossing intercal.The construction safety of rail transit line five is analyzed by FLAC~(3D),and the control index is within the control standard,the construction is safe.The rationality of the numerical simulation results are verified by field test data.
引文
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[2]袁金秀,李现者.下穿既有客运专线浅埋大跨双连拱隧道施工方法比选[J].河北交通职业技术学院学报,2012,(9):51-55.YUAN Jinxiu,LI Xianzhe.Selection on Construction Method of Shallow and Large-span Double-arch Tunnel Crossing Under the Existing Passenger Rail-way Line[J].Journal of Hebei Jiaotong Vocational and Technical College,2012,(9):51-55.
[3]吴健强.地铁单洞双层重叠隧道合理施工方法研究[J].铁道建筑,2009:48-51.WU Jianqiang.Research on reasonable construction method of double layer over-lapping tunnel in Metro[J].Railway Engineering,2009:48-51.
[4]徐彬,王康柱,李宁.不良地质段双洞交叉开挖三维有限元分析[J].岩土力学,2007,(28):437-442.XU Bin,WANG Kangzhu,LI Ning.3D FEM analysis of excavat-ing two intersecting tunnels in bad geology[J].Rock and Soil Mechanics,2007,(28):437-442.
[5]曾东洋.盾构隧道衬砌结构力学行为及施工对环境的影响研究[D].成都:西南交通大学土木工程学院,2005.ZENG Dongyang.Study on the mechanical behavior of shield tunnel lining structure and its influence on the environment[D].Cheng Du:School of civil engineering,Southwest Jiao Tong University,2005.
[6]张晓军.小间距盾构重叠隧道施工控制技术研究[D].成都:西南交通大学,2010.ZHANG Xiaojun.Study On Security Construction Control Of Small Space Overlapped Shield Tunnel[D].Cheng Du:School of civil engineering,Southwest Jiao Tong University,2010.
[7]#12
[8]钟小春,朱伟,季亚军,等.盾构衬砌管片环弯曲等效刚度的一种确定方法[J].地质与勘探,2003,39(2):185—189.ZHONG Xiaochun,ZHU Wei,JI Yajun.etc.A method to determine the ring bending equi-valent stiffness of shield tunnel segment[J].Geology and Exploration,2003,39(2):185-189.
[9]黄宏伟,徐凌,严佳梁,等.盾构隧道横向刚度有效率研究[J].岩土工程学报,2006,28(1):11-18.HUANG Hongwei,XU Ling,YAN Jialiang,etc.Study on transv-erse effective rigidity ratio of shield tunnels[J]Chinese Journal of Geotechnical Engineering,2006,28(1):11-18.