大埋深污水盾构隧道双层衬砌结构分析
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- 英文论文题名：Structure Analysis on Double-layered Sewer Shield Tunnel under Deeply Buried Condition
- 论文作者：邱月 ; 何川 ; 封坤 ; 郭瑞 ; 孙齐
- 英文论文作者：QIU Yue ; HE Chuan ; FENG Kun ; GUO Rui ; SUN Qi ; Key Laboratory of Transportation Tunnel Engineering ; Ministry of Education ; School of Civil Engineering ; Southwest Jiaotong University
- 年：2016
- 作者机构：西南交通大学交通隧道工程教育部重点实验室;
- 论文关键词：污水深隧 ; 双层衬砌 ; 内水压 ; 二衬施作时机
- 英文论文关键词：Deeply buried sewer shield tunnel ; Double-layer lining ; Internal water pressure ; Construction occasion
- 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：U455.43
- 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：1477k
- 原文格式：O
- 会议级别：全国
摘要
文章以某深埋污水盾构隧道为背景,针对其埋深大、内水压高的特点,采用梁—弹簧模型对其衬砌结构进行了数值分析,研究了叠合式双层衬砌结构受到内水压作用时,不同分块方式、衬砌厚度以及内压大小对结构受力的影响,并对二衬的施作时机进行探讨。结果表明:在内水压力作用下,管片衬砌承受压力,二衬承受拉力,"5等分分块方案"使结构的受力更为均匀且产生的拉力较小;管片衬砌内力受二衬厚度的影响较小,二衬内力受管片厚度的影响较大;内压的变化对结构弯矩影响较小,对结构轴力影响较大;二衬施作越晚,内水压对管片衬砌的影响越小,对二衬的影响越大。
This article is based on a deeply buried sewer shield tunnel which is under high internal water pressure.Through the beam-spring model,stress of the segmental lining and second lining are carried out under different blocked mode and the lining thickness in high internal water pressure.Meanwhile,reasonable construction occasion of the second lining is also discussed.The results show that segmental lining is under pressure and second lining is under tension in the action of internal water pressure.Five-equal partition blocked mode could improve distribution of structure stress and reduce the tension.The structure stress of segmental lining is less influenced by the thickness of second lining.However,the structure stress of second lining is deeply influenced by the thickness of the segmental lining.The change of internal water pressure has less influenced on the bending moment of the structure,while it influences the axial force obviously.The later second lining is constructed,the less that the segmental lining is influenced by the internal water pressure,and the more seriously that second lining is influenced by the internal water pressure.
This article is based on a deeply buried sewer shield tunnel which is under high internal water pressure.Through the beam-spring model,stress of the segmental lining and second lining are carried out under different blocked mode and the lining thickness in high internal water pressure.Meanwhile,reasonable construction occasion of the second lining is also discussed.The results show that segmental lining is under pressure and second lining is under tension in the action of internal water pressure.Five-equal partition blocked mode could improve distribution of structure stress and reduce the tension.The structure stress of segmental lining is less influenced by the thickness of second lining.However,the structure stress of second lining is deeply influenced by the thickness of the segmental lining.The change of internal water pressure has less influenced on the bending moment of the structure,while it influences the axial force obviously.The later second lining is constructed,the less that the segmental lining is influenced by the internal water pressure,and the more seriously that second lining is influenced by the internal water pressure.
引文
[1]张厚美,连烈坤,过迟.盾构隧洞双层衬砌接头相互作用模型[J].岩石力学与工程学报,2003,22(2):70-74.ZHANG Houmei,LIAN Liekun,GUO Chi.Joint interaction models for shield tunnel segment reinforced by secondary linings[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(1):70-74.
[2]张厚美,过迟,傅德明.圆形隧道装配式衬砌接头刚度模型研究[J].岩土工程学报,2000,22(3):309-313.ZHANG Houmei,GUO Chi,Fu Deming.A study on the stiffness model of circular tunnel prefabricated lining[J].Chinese Journal of Geotechnical Engineering,2000,22(3):309-311.
[3]张厚美,车法星,夏明耀.盾构隧洞双层衬砌接头荷载试验研究[J].同济大学学报,2001,29(7):779-783.ZHANG Houmei,CHE Faxing,XIA Mingyao.Study on loads test of shield tunnel segment reinforced by double Linings[J].Journal of Tongji University,2001,29(7):779-783.
[4]周济民.水下盾构法隧道双层衬砌结构力学特性[D].成都:西南交通大学,2012.ZHOU Jimin.Research on mechanical behavior of double-layer lining structure for underwater shield tunnel[D].Chengdu:Southwest Jiaotong University,2012.
[5]晏启祥,程曦,何川,赵世科.水压条件下盾构隧道双层衬砌力学特性分析[J].铁道工程学报,2010,(09):55-59.YAN Qixiang,CHENG Xi,HE Chuan,et al.Analysis of mechanical properties of double-layered lining of shield tunnel under water pressure[J].Journal of Railway Engineering,2010,(9):55-59.
[6]#12
[7]何川.水下隧道[M].成都:西南交通大学出版社,2011.HE Chuan.Underwater Tunnel[M].Chengdu:Southwest Jiaotong University Press,2011.
[8]邱月,何川,封坤,等.软粘土地层水下铁路盾构隧道双层衬砌结构的受力计算分析[C]//第七届中日盾构隧道技术交流会论文集,西安,2013.QIU Yue,HE Chuan,FENG Kun,et al.Calculation and Analysis of Stress Double-layered Lining of Underwater Railway Tunnel in Soft Clay[C]//Proceedings of the Seventh Sino-Japan Symposium on Shield Tunnelling,Xian,2013.
[9]HE Chuan,WANG Bo.Research progress and development trends of highway tunnels in China[J].Journal of Modern Transportation,2013,21(4):209-223.
[2]张厚美,过迟,傅德明.圆形隧道装配式衬砌接头刚度模型研究[J].岩土工程学报,2000,22(3):309-313.ZHANG Houmei,GUO Chi,Fu Deming.A study on the stiffness model of circular tunnel prefabricated lining[J].Chinese Journal of Geotechnical Engineering,2000,22(3):309-311.
[3]张厚美,车法星,夏明耀.盾构隧洞双层衬砌接头荷载试验研究[J].同济大学学报,2001,29(7):779-783.ZHANG Houmei,CHE Faxing,XIA Mingyao.Study on loads test of shield tunnel segment reinforced by double Linings[J].Journal of Tongji University,2001,29(7):779-783.
[4]周济民.水下盾构法隧道双层衬砌结构力学特性[D].成都:西南交通大学,2012.ZHOU Jimin.Research on mechanical behavior of double-layer lining structure for underwater shield tunnel[D].Chengdu:Southwest Jiaotong University,2012.
[5]晏启祥,程曦,何川,赵世科.水压条件下盾构隧道双层衬砌力学特性分析[J].铁道工程学报,2010,(09):55-59.YAN Qixiang,CHENG Xi,HE Chuan,et al.Analysis of mechanical properties of double-layered lining of shield tunnel under water pressure[J].Journal of Railway Engineering,2010,(9):55-59.
[6]#12
[7]何川.水下隧道[M].成都:西南交通大学出版社,2011.HE Chuan.Underwater Tunnel[M].Chengdu:Southwest Jiaotong University Press,2011.
[8]邱月,何川,封坤,等.软粘土地层水下铁路盾构隧道双层衬砌结构的受力计算分析[C]//第七届中日盾构隧道技术交流会论文集,西安,2013.QIU Yue,HE Chuan,FENG Kun,et al.Calculation and Analysis of Stress Double-layered Lining of Underwater Railway Tunnel in Soft Clay[C]//Proceedings of the Seventh Sino-Japan Symposium on Shield Tunnelling,Xian,2013.
[9]HE Chuan,WANG Bo.Research progress and development trends of highway tunnels in China[J].Journal of Modern Transportation,2013,21(4):209-223.