高速铁路隧道上方挖填方机理与影响分区
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- 英文论文题名：Mechanism of Fill and Excavation above High Speed Railway Tunnel and the Influence Zone
- 论文作者：郑强 ; 周慧超 ; 仇文革 ; 孙克国
- 英文论文作者：ZHENG Qiang ; ZHOU Huichao ; QIU Wenge ; SUN Keguo ; School of Civil Engineering ; Southwest Jiaotong University ; Key laboratory of traffic tunneling ; ministry of education
- 年：2016
- 作者机构：西南交通大学土木工程学院交通隧道工程教育部重点实验室;
- 论文关键词：高速公路 ; 近接施工 ; 强度折减法 ; 安全系数
- 英文论文关键词：High-speed ; Adjacent excavation ; FEM ; Safety factor
- 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：U456.3
- 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：6
- 文件大小：1124k
- 原文格式：O
- 会议级别：全国
摘要
依托连霍高速上穿郑西客专阌乡隧道改扩建工程,采用数值模拟方法,对隧道上方填挖方影响机理进行了计算分析,并结合工程实例进行了验证分析。结果表明:当埋深小于300 m时,隧道的安全系数均大于1,在埋深小于130 m时,隧道的安全系数均大于2,隧道上方填方时,在5~130 m范围的埋深内,隧道的安全系数随埋深的增大而减小,在埋深小于5 m时减小;隧道上方挖方时,在5~130 m范围的埋深内,隧道的安全系数随埋深的减小而增大,在埋深小于3 m时减小。通过现场实测数据的分析,阌乡隧道受上方施工影响很小,说明隧道有较大的安全冗余度,同时验证了计算分析的可靠性,对类似工程具有一定的指导作用。
Relying on high-speed Lianhuo through special Wenxiang Zhengxi passenger tunnel rural expansion project,using numerical simulation method,there's a calculation and analysis aim at the top of tunnel excavation fill the impact mechanism,and an engineering instance validated analysis.The results show that when the buried depth is less than 300 m,the tunnel safety factor greater than l;when the buried depth is less than 130 m,the tunnel safety factor greater than 2.During the filling time about tunnel above,in a 5~130 m depth range,the safety factor of the tunnel with the depth decreases,decreases when the depth is less than 5 m;above the tunnel excavation within 5~130 m depth range,the safety factor with decreasing depth of the tunnel increases,decreases when the depth is less than 3m.Through the analysis of field test data,top construction has little effect in Wenxiang tunnel,it describes that tunnels have a greater degree of safety redundancy and verify the reliability of calculation and analysis.The analysis have some guidance in similar projects.
Relying on high-speed Lianhuo through special Wenxiang Zhengxi passenger tunnel rural expansion project,using numerical simulation method,there's a calculation and analysis aim at the top of tunnel excavation fill the impact mechanism,and an engineering instance validated analysis.The results show that when the buried depth is less than 300 m,the tunnel safety factor greater than l;when the buried depth is less than 130 m,the tunnel safety factor greater than 2.During the filling time about tunnel above,in a 5~130 m depth range,the safety factor of the tunnel with the depth decreases,decreases when the depth is less than 5 m;above the tunnel excavation within 5~130 m depth range,the safety factor with decreasing depth of the tunnel increases,decreases when the depth is less than 3m.Through the analysis of field test data,top construction has little effect in Wenxiang tunnel,it describes that tunnels have a greater degree of safety redundancy and verify the reliability of calculation and analysis.The analysis have some guidance in similar projects.
引文
[1]陈郁.基坑开挖引起下卧隧道隆起的研究分析[D].上海:同济大学,2005.CHEN Yu.Research on Tunnel Heaving due to Unloading of Pit Excavation[D].Shanghai:Tongji University,2005.
[2]陈郁,张冬梅.基坑开挖对下卧隧道隆起的实测影响分析[J].地下空间,2004,24(21):748-751.CHEN Yu,ZHANG Dongmei.Analysis of Monitoring Data on Heaving Due to Unloading of Foundation Pit Excavation[J].Underground space,2004,24(21):748-751.
[3]陈郁,李永盛.基坑开挖卸荷引起下卧隧道隆起的计算方法[J].地下空间与工程学报,2005,1(1):91-94.CHEN Yu,LI Yongsheng.Calculation of Tunnel Heaving due to Unloading of Pit Excavation[J].Chinese Journal of Underground Space and Engineering,2005,1(1):91-94.
[4]况龙川.深基坑施工对地铁隧道的影响[J].岩土工程学报.2000,22(3):284-288.KUANG Longchuan.Influence of construction of deep foundation pit on tunnels of metro[J].Chinese Journal of Geotechnical Engineering,2000,22(3):284-288.
[5]宋波,李量,马坤.近接开挖与列车振动对既有铁路隧道的沉降影响研究[J].福州大学学报(自然科学版),2013,(4):581-586.SONG Bo,et al.Study on settlement deformation of railway tunnel under approaching excavation and train vibration load[J].Journal of Fuzhou University,2013,(4):581-586.
[6]曹权,李清明,项伟,贾海梁.基坑群开挖对邻近既有地铁隧道影响的自动化监测研究[J].岩土工程学报,2012,(S1):552-556.CAO Quan.Automatic monitoring of effects of excavation of group foundation pits on existing adjacent metro tunnels[J].Chinese Journal of Geotechnical Engineering,2012,(S1):552-556.
[7]张治国,黄茂松,王卫东.邻近开挖对既有软土隧道的影响[J].岩土力学,2009,(5):1372-1380.ZHANG Zhiguo.Responses of existing tunnels induced by adjacent excavation in soft soils[J].Rock and Soil Mechanics,2009,(5):1372-1380.
[8]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座II:有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.ZHAO Shangyi.Study on slope failure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.
[9]徐卫亚,肖武.基于强度折减和重度增加的边坡破坏判据研究[J].岩土力学,2007,28(3):505-511.XU Weiya.Study on slope reduction failure criterion based on strength and gravity increase method[J].Rock and Soil Mechanics,2007,28(3):505-511.
[10]栾茂田,武亚军,年廷凯.强度折减有限元法中边坡失稳的塑性区判据及其应用[J].防灾减灾工程学报,2003,23(3):1-8.LUAN Maotian.A Criterion for Evaluating Slope of Plastic Zone by Shear Stability Based on Strength Reduction Development FEM[J].Journal of Disaster Prevention and Mitigation Engineering,2003,23(3):1-8.
[2]陈郁,张冬梅.基坑开挖对下卧隧道隆起的实测影响分析[J].地下空间,2004,24(21):748-751.CHEN Yu,ZHANG Dongmei.Analysis of Monitoring Data on Heaving Due to Unloading of Foundation Pit Excavation[J].Underground space,2004,24(21):748-751.
[3]陈郁,李永盛.基坑开挖卸荷引起下卧隧道隆起的计算方法[J].地下空间与工程学报,2005,1(1):91-94.CHEN Yu,LI Yongsheng.Calculation of Tunnel Heaving due to Unloading of Pit Excavation[J].Chinese Journal of Underground Space and Engineering,2005,1(1):91-94.
[4]况龙川.深基坑施工对地铁隧道的影响[J].岩土工程学报.2000,22(3):284-288.KUANG Longchuan.Influence of construction of deep foundation pit on tunnels of metro[J].Chinese Journal of Geotechnical Engineering,2000,22(3):284-288.
[5]宋波,李量,马坤.近接开挖与列车振动对既有铁路隧道的沉降影响研究[J].福州大学学报(自然科学版),2013,(4):581-586.SONG Bo,et al.Study on settlement deformation of railway tunnel under approaching excavation and train vibration load[J].Journal of Fuzhou University,2013,(4):581-586.
[6]曹权,李清明,项伟,贾海梁.基坑群开挖对邻近既有地铁隧道影响的自动化监测研究[J].岩土工程学报,2012,(S1):552-556.CAO Quan.Automatic monitoring of effects of excavation of group foundation pits on existing adjacent metro tunnels[J].Chinese Journal of Geotechnical Engineering,2012,(S1):552-556.
[7]张治国,黄茂松,王卫东.邻近开挖对既有软土隧道的影响[J].岩土力学,2009,(5):1372-1380.ZHANG Zhiguo.Responses of existing tunnels induced by adjacent excavation in soft soils[J].Rock and Soil Mechanics,2009,(5):1372-1380.
[8]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座II:有限元强度折减法中边坡失稳的判据探讨[J].岩土力学,2005,26(2):332-336.ZHAO Shangyi.Study on slope failure criterion in strength reduction finite element method[J].Rock and Soil Mechanics,2005,26(2):332-336.
[9]徐卫亚,肖武.基于强度折减和重度增加的边坡破坏判据研究[J].岩土力学,2007,28(3):505-511.XU Weiya.Study on slope reduction failure criterion based on strength and gravity increase method[J].Rock and Soil Mechanics,2007,28(3):505-511.
[10]栾茂田,武亚军,年廷凯.强度折减有限元法中边坡失稳的塑性区判据及其应用[J].防灾减灾工程学报,2003,23(3):1-8.LUAN Maotian.A Criterion for Evaluating Slope of Plastic Zone by Shear Stability Based on Strength Reduction Development FEM[J].Journal of Disaster Prevention and Mitigation Engineering,2003,23(3):1-8.