盾构隧道管片接头接触特性的模拟分析
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摘要
以北京地铁四号线和武汉长江隧道工程为例,对其隧道管片接头接触特性进行精细三维有限元数值模拟,研究了隧道管片及其接头的应力应变分布,管片接头部分的接触状态、接触压力、接缝张开量.研究表明:隧道管片最大应变位置集中在管片螺栓手孔位置和接头受压区.随着接缝张开量的逐渐增大,接头部分由全断面接触状态变化到存在较大接缝张开量状态的过程中,接触应力分布线由以螺栓孔为中心的圆弧线逐渐变化到平直状态,最大应力值逐渐变大.计算结果表明:北京地铁与武汉长江隧道管片接头的张开比例分别达到50%和75%,研究成果为混凝土管片接头个性化设计提供依据.
Taking the projects of Beijing Subway Line 4 and the Wuhan Yangtze River Tunnel as the example, the three-dimensional finite element numerical simulation of the contact characteristics of the tunnel segment joints was carried out. The stress and strain distribution on the tunnel segment and its joints, the contact state of the segment joints, the contact pressure and the amount of joint open were studied. The research shows that the maximum strain location on tunnel segment concentrates on the location of the bolt hole and the compression zone of the joint. As the amount of seam increases,the joint part changes from the full contact state to larger seam state, the contact stress distribution line gradually changes from the arc line centered on the bolt hole to the straight state, and the maximum stress value gradually increases. The calculation results show that the open ratio of the segment joints of the Beijing Subway and the Wuhan Yangtze River Tunnel reaches 50% and 75%respectively. The research results provide the basis for the personalized design of the concrete joints.
Taking the projects of Beijing Subway Line 4 and the Wuhan Yangtze River Tunnel as the example, the three-dimensional finite element numerical simulation of the contact characteristics of the tunnel segment joints was carried out. The stress and strain distribution on the tunnel segment and its joints, the contact state of the segment joints, the contact pressure and the amount of joint open were studied. The research shows that the maximum strain location on tunnel segment concentrates on the location of the bolt hole and the compression zone of the joint. As the amount of seam increases,the joint part changes from the full contact state to larger seam state, the contact stress distribution line gradually changes from the arc line centered on the bolt hole to the straight state, and the maximum stress value gradually increases. The calculation results show that the open ratio of the segment joints of the Beijing Subway and the Wuhan Yangtze River Tunnel reaches 50% and 75%respectively. The research results provide the basis for the personalized design of the concrete joints.
引文
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[7]LI Xiaojun,YAN Zhiguo,WANG Zhen,et al.Experimental and analytical study on longitudinal joint opening of concrete segmental lining[J].Tunnelling and Underground Space Technology,2015(46):52-63.
[8]李守巨,李雨陶,上官子昌,等.混凝土管片及其接头承载力特性数值模拟分析[J].山东科技大学学报,2017,36(1):72-78.LI Shouju,LI Yutao,SHANGGUAN Zichang,et al.Numerical simulations for ultimate bearing capacities of concrete segments and its joints[J].Journal of Shandong University of Science and Technology,2017,36(1):72-78.
[9]庄晓莹,张雪健,朱合华.盾构管片接头破坏的弹塑性-损伤三维有限元模型研究[J].岩土工程学报,2015,37(10):1 826-1 834.ZHUANG Xiaoying,ZHANG Xuejian,ZHU Hehua.3-D finite element model for destruction process of segment joints of shield tunnel using elastoplastic and damage constitutive methods[J].Chinese Journal of Geotechnical Engineering,2015,37(10):1 826-1 834.
[10]刘四进,封坤,何川,等.大断面盾构隧道管片接头抗弯力学模型研究[J].工程力学,2015,32(12):215-224.LIU Sijin,FENG Kun,HE Chuan,et al.Study on bending mechanical model of segmental joint in shield tunnel with large cross-section[J].Engineering Mechanics,2015,32(12):215-224.
[11]王志云,李守巨,李雨陶.隧道混凝土管片接头极限状态抗弯刚度的计算模型[J].黑龙江科技大学学报,2017,27(6):646-652.WANG Zhiyun,LI Shouju,LI Yutao.Computational models for bending stiffness of concrete segment joints in subway tunnel[J].Journal of Heilongjiang University of Science&Technology,2017,27(6):646-652.
[12]MAJDI A,AJAMZADEH H,NADIMI S.Investigation of moment-rotation relation in different joint types and evaluation of their effects on segmental tunnel lining[J].Arabian Journal of Geosciences,2016(9):512.
[13]SUPOT T,TANAN C.Influence of segmental joints on tunnel lining[J].Tunnelling and Underground Space Technology,2010,25(4):490-494.
[14]李周沛,欧阳娜.盾构管片接头力学行为的有限元分析[J].公路与汽运,2014(5):185-190.LI Zhoupei,OUYANG Na.Finite element analysis of mechanical behavior of shield tunneling joint[J].Highways Automotive Applications,2014(5):185-190.
[15]欧阳文彪.盾构隧道管片接头受力的精细化三维有限元分析[J].中国市政工程,2014(4):58-61.OUYANG Wenbiao.Fine three-dimensional finite element analysis of the stress on the segment joint of shield tunnel[J].China Municipal Engineering,2014(4):58-61.
[16]陈仁东.北京地铁四号线管片配筋设计与优化[J].现代隧道技术,2006,43(5):50-54.CHEN Rendong.Optimum design for the reinforcement of the lining segments in Beijing metro line 4[J].Modern Tunneling Technology,2006,43(5):50-54.
[17]何川,张建刚,杨征.武汉长江隧道管片衬砌结构力学特征模型试验研究[J].土木工程学报,2008,41(12):85-90.HE Chan,ZHANG Jiangang,YANG Zheng.Model test study on the mechanical characteristics of segment lining for the Wuhan Yangtze River tunnel[J].China Civil Engineering JournaL,2008,41(12):85-90.
[18]何川,张建刚,苏宗贤.大断面水下盾构隧道结构力学特性[M].北京:科学出版社,2010.
[19]中华人民共和国住房和城乡建设部.GB50010-2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.
[2]DO N A,DIAS D,ORESTE P,Djeran-Maigre I.2D numerical investigation of segmental tunnel lining behavior[J].Tunnelling and Underground Space Technology,2013,37(6):115-127.
[3]KLAPPERS C,GRUBL F,OSTERMEIER B.Structural analyses of segmental lining coupled beam and spring analyses versus 3D-FEM calculations with shell elements[J].Tunnelling and Underground Space Technology,2006,213-4):254-255.
[4]郭瑞,何川,封坤,等.大断面水下盾构隧道管片接头抗弯刚度及其对管片内力影响研究[J].中国铁道科学,2013,34(5):46-53.GUO Rui,HE Chuan,FENG Kun,et al.Bending stiffness of segment joint and its effect on segment internal force for underwater shield tunnel with large cross-section[J].China Railway Science,2013,34(5):46-53.
[5]郭玉海,陈丹,袁大军.北京地铁盾构隧道管片设计合理性探讨[J].市政技术,2006,24(4):244-247.GUO Yuhai,CHEN Dan,YUAN Dajun.Discussion on rationality of segment design for shield tunneling of Beijing metro[J].Municipal Engineering Technology,2006,24(4):244-247.
[6]LI Xiaojun,YAN Zhiguo,WANG Zhen,et al.A progressive model to simulate the full mechanical behavior of concrete segmental lining longitudinal joints[J].Engineering Structures,2015(93):97-113.
[7]LI Xiaojun,YAN Zhiguo,WANG Zhen,et al.Experimental and analytical study on longitudinal joint opening of concrete segmental lining[J].Tunnelling and Underground Space Technology,2015(46):52-63.
[8]李守巨,李雨陶,上官子昌,等.混凝土管片及其接头承载力特性数值模拟分析[J].山东科技大学学报,2017,36(1):72-78.LI Shouju,LI Yutao,SHANGGUAN Zichang,et al.Numerical simulations for ultimate bearing capacities of concrete segments and its joints[J].Journal of Shandong University of Science and Technology,2017,36(1):72-78.
[9]庄晓莹,张雪健,朱合华.盾构管片接头破坏的弹塑性-损伤三维有限元模型研究[J].岩土工程学报,2015,37(10):1 826-1 834.ZHUANG Xiaoying,ZHANG Xuejian,ZHU Hehua.3-D finite element model for destruction process of segment joints of shield tunnel using elastoplastic and damage constitutive methods[J].Chinese Journal of Geotechnical Engineering,2015,37(10):1 826-1 834.
[10]刘四进,封坤,何川,等.大断面盾构隧道管片接头抗弯力学模型研究[J].工程力学,2015,32(12):215-224.LIU Sijin,FENG Kun,HE Chuan,et al.Study on bending mechanical model of segmental joint in shield tunnel with large cross-section[J].Engineering Mechanics,2015,32(12):215-224.
[11]王志云,李守巨,李雨陶.隧道混凝土管片接头极限状态抗弯刚度的计算模型[J].黑龙江科技大学学报,2017,27(6):646-652.WANG Zhiyun,LI Shouju,LI Yutao.Computational models for bending stiffness of concrete segment joints in subway tunnel[J].Journal of Heilongjiang University of Science&Technology,2017,27(6):646-652.
[12]MAJDI A,AJAMZADEH H,NADIMI S.Investigation of moment-rotation relation in different joint types and evaluation of their effects on segmental tunnel lining[J].Arabian Journal of Geosciences,2016(9):512.
[13]SUPOT T,TANAN C.Influence of segmental joints on tunnel lining[J].Tunnelling and Underground Space Technology,2010,25(4):490-494.
[14]李周沛,欧阳娜.盾构管片接头力学行为的有限元分析[J].公路与汽运,2014(5):185-190.LI Zhoupei,OUYANG Na.Finite element analysis of mechanical behavior of shield tunneling joint[J].Highways Automotive Applications,2014(5):185-190.
[15]欧阳文彪.盾构隧道管片接头受力的精细化三维有限元分析[J].中国市政工程,2014(4):58-61.OUYANG Wenbiao.Fine three-dimensional finite element analysis of the stress on the segment joint of shield tunnel[J].China Municipal Engineering,2014(4):58-61.
[16]陈仁东.北京地铁四号线管片配筋设计与优化[J].现代隧道技术,2006,43(5):50-54.CHEN Rendong.Optimum design for the reinforcement of the lining segments in Beijing metro line 4[J].Modern Tunneling Technology,2006,43(5):50-54.
[17]何川,张建刚,杨征.武汉长江隧道管片衬砌结构力学特征模型试验研究[J].土木工程学报,2008,41(12):85-90.HE Chan,ZHANG Jiangang,YANG Zheng.Model test study on the mechanical characteristics of segment lining for the Wuhan Yangtze River tunnel[J].China Civil Engineering JournaL,2008,41(12):85-90.
[18]何川,张建刚,苏宗贤.大断面水下盾构隧道结构力学特性[M].北京:科学出版社,2010.
[19]中华人民共和国住房和城乡建设部.GB50010-2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2010.
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