大断面矩形盾构隧道管片接头极限抗弯承载力试验

PDF全文下载(1216 KB)

中国公路学报 ›› 2017, Vol. 30 ›› Issue (8) : 143-148,155.

试验与探讨

大断面矩形盾构隧道管片接头极限抗弯承载力试验

金跃郎^1,2, 丁文其^1,2, 姜弘³, 魏于量^1,2, 龚琛杰^1,2

作者信息 +

Test on Ultimate Bearing Capacity of Segment Joint in Shield Tunnel with Large Rectangular Cross-section

JIN Yue-lang^1,2, DING Wen-qi^1,2, JIANG Hong³, WEI Yu-liang^1,2, GONG Chen-jie^1,2

Author information +

文章历史 +

摘要

为了研究大断面矩形盾构隧道管片接头结构的力学性能及其极限承载能力和极限破坏状态，进行了该管片接头的极限抗弯承载力试验。试验在同济大学自主研发的盾构隧道管片接头试验加载系统中进行，采用Datataker数据采集系统记录了接头试件在荷载作用下的力学性能变化过程，同时采集并记录了该接头的破坏过程和最终破坏形态。通过分析管片接缝张角、接头处挠度以及双排螺栓应力随接头处弯矩荷载的变化，对该管片接头结构力学性能变化及破坏全过程进行研究，并将其分为3个阶段：弹性变化阶段（弯矩小于450 kN·m）、塑性发展阶段（弯矩为450~800 kN·m）、屈服破坏阶段（弯矩大于800 kN·m）。试验结果表明：正弯矩荷载下该断面形式的大断面矩形盾构隧道管片接头屈服弯矩为800 kN·m，极限抗弯承载力为884 kN·m，均远大于该管片接头设计荷载（534 kN·m），意味着试验的大断面矩形盾构隧道管片接头可满足抗弯设计的要求，并为类似工程提供参考。管片接头试件的最终破坏形态表明，除了传统圆形盾构隧道管片接头试验中常见的接缝混凝土受压屈服破坏、接头螺栓受拉屈服破坏以外，所研究的大断面矩形盾构隧道纵缝接头出现了新的破坏形态，即接头盒断裂和锚固失效。

Abstract

In order to investigate the mechanical behaviors and ultimate bearing capacity and ultimate failure state of the segment joint in a shield tunnel with large rectangular cross-section, the ultimate flexural capacity test of the joint was carried out. The test was conducted in the test loading system for the segment joint of shield tunnel which was developed by Tongji university, and the Datataker data acquisition system was used to record the mechanical property changing processes of the joint specimen under loading. Meanwhile, the failure process of the joint was collected and the final failure form was recorded. By analyzing the changes of the joint rotational angle, the deflection of the joint and the stress of bolts with the bending moment load, the change of mechanical behaviors of the joint structure and the whole process of damage were explored. It was divided into three stages:elastic stage (bending moment was less than 450 kN·m), plastic development stage (bending moment was in the range of 450-800 kN·m) and yield failure stage (bending moment was larger than 800 kN·m). The results show that the yield bending moment of the joint used in this shield tunnel with large-section rectangular is 800 kN·m and the ultimate bearing capacity is 884 kN·m, much larger than design load (534 kN·m). It means that the tested joint specimen can meet the requirements of flexural design and provides a reference for the similar projects.The final failure pattern of the joint specimen shows that, except the compressive yielding of concrete and tensile yielding of bolts in the conventional test on the segment joint in circular shield tunnels, there is a new failure mode of the segment joint-the crack of joint box and the failure of anchor bars.

导出引用

金跃郎, 丁文其, 姜弘, 魏于量, 龚琛杰. 大断面矩形盾构隧道管片接头极限抗弯承载力试验[J]. 中国公路学报, 2017, 30(8): 143-148,155

JIN Yue-lang, DING Wen-qi, JIANG Hong, WEI Yu-liang, GONG Chen-jie. Test on Ultimate Bearing Capacity of Segment Joint in Shield Tunnel with Large Rectangular Cross-section[J]. China Journal of Highway and Transport, 2017, 30(8): 143-148,155

中图分类号： U451.4

参考文献

[1] 王如路,宋博,王祺,等.双圆盾构隧道衬砌错缝拼装整环试验及结构分析.地下工程与隧道,2001(1):12-15,21. WANG Ru-lu,SONG Bo,WANG Qi,et al.Lining Experiment and Structure Analysis of Bi-circular Shield Tunnel with Staggered Joint Splice and Segments.Underground Engineering and Tunnel,2001(1):12-15,21. 何川,封坤,杨雄.南京长江隧道超大断面管片衬砌结构体的相似模型试验研究.岩石力学与工程学报,2007,26(11):2260-2269. HE Chuan,FENG Kun,YANG Xiong.Model Test on Segmental Lining of Nanjing Yangtze River Tunnel with Super-large Cross-section.Chinese Journal of Rock Mechanics and Engineering,2007,26(11):2260-2269. DING W Q,PENG Y C,YAN Z G,et al.Full-scale Testing and Modeling of the Mechanical Behavior of Shield TBM Tunnel Joints.Structural Engineering and Mechanics,2013,45(3):333-350. 封坤,何川,苏宗贤.南京长江隧道管片衬砌结构原型加载试验.中国公路学报,2013,26(1):135-143. FENG Kun,HE Chuan,SU Zong-xian.Prototype Loading Test on Segmental Lining Structure of Nanjing Yangtze River Tunnel.China Journal of Highway and Transport,2013,26(1):135-143. 毕湘利,柳献,王秀志,等.通缝拼装盾构隧道结构极限承载力的足尺试验研究.土木工程学报,2014,47(10):117-127. BI Xiang-li,LIU Xian,WANG Xiu-zhi,et al.Experimental Investigation on the Ultimate Bearing Capacity of Continuous-jointed Segmental Tunnel Linings.China Civil Engineering Journal,2014,47(10):117-127. LI X J,YAN Z G,WANG Z,et al.Experimental and Analytical Study on Longitudinal Joint Opening of Concrete Segmental Lining.Tunnelling and Underground Space Technology,2015,46:52-63. 张厚美,傅德明,过迟.盾构隧道管片接头荷载试验研究.现代隧道技术,2002,39(6):28-33,41. ZHANG Hou-mei,FU De-ming,GUO-Chi.Study on Load Test of Segment Joint in Shield Driven Tunnel.Modern Tunnelling Technology,2002,39(6):28-33,41. 闫治国,彭益成,丁文其,等.青草沙水源地原水工程输水隧道单层衬砌管片接头荷载试验研究.岩土工程学报,2011,33(9):1385-1390. YAN Zhi-guo,PENG Yi-cheng,DING Wen-qi,et al.Load Tests on Segment Joints of Single Lining Structure of Shield Tunnel in Qingcaosha Water Conveyance Project.Chinese Journal of Geotechnical Engineering.2011,33(9):1385-1390. 鲁亮,孙越峰,柳献,等.地铁盾构隧道足尺整环结构极限承载能力试验研究.结构工程师,2012,28(6):134-139. LU Liang,SUN Yue-feng,LIU Xian,et al.Full-ring Experimental Study on the Ultimate Bearing Capacity of the Lining Structure of the Metro Shield Tunnel.Structural Engineers,2012,28(6):134-139. 柳献,唐敏,鲁亮,等.内张钢圈加固盾构隧道结构承载能力的试验研究——整环加固法.岩石力学与工程学报,2013,32(11):2300-2306. LIU Xian,TANG Min,LU Liang,et al.Experimental Study of Ultimate Bearing Capacity of Shield Tunnel Reinforced by Full-ring Steel Plate.Chinese Journal of Rock Mechanics and Engineering,2013,32(11):2300-2306. JIN Y L,DING W Q,YAN Z G,et al.Experimental Investigation of the Nonlinear Behavior of Segmental Joints in a Water-conveyance Tunnel.Tunnelling and Underground Space Technology,2017,68:153-166. LIU X,DONG Z B,BAI Y,et al.Investigation of the Structural Effect Induced by Stagger Joints in Segmental Tunnel Linings:First Results from Full-scale Ring Tests.Tunnelling and Underground Space Technology,2017,66:1-18.MOLINS C,ARNAU O.Experimental and Analytical Study of the Structural Response of Segmental Tunnel Linings Based on an In Situ Loading Test. Part 1:Test Configuration and Execution.Tunnelling and Underground Space Technology,2011,26(6):764-777. LEE K M,HOU X Y,GE X W,et al.An Analytical Solution for a Jointed Shield-driven Tunnel Lining.International Journal for Numerical and Analytical Methods in Geomechanics,2001,25(4):365-390. 朱合华,陶履彬.盾构隧道衬砌结构受力分析的梁-弹簧系统模型.岩土力学,1998,19(2):26-32. ZHU He-hua,TAO Lu-bin.Study on Two Beam-spring Models for the Numerical Analysis of Segments in Shield Tunnel.Rock and Soil Mechanics,1998,19(2):26-32. 彭益成,丁文其,朱合华,等.盾构隧道衬砌结构的壳-接头模型研究.岩土工程学报,2013,35(10):1823-1829. PENG Yi-cheng,DING Wen-qi,ZHU He-hua,et al.Shell-joint Model for Lining Structures of Shield-driven Tunnels.Chinese Journal of Geotechnical Engineering,2013,35(10):1823-1829. 张厚美,过迟,付德明.圆形隧道装配式衬砌接头刚度模型研究.岩土工程学报,2000,22(3):309-313. ZHANG Hou-mei,GUO Chi,FU De-ming.A Study on the Stiffness Model of Circular Tunnel Prefabricated Lining.Chinese Journal of Geotechnical Engineering,2000,22(3):309-313. 朱伟,钟小春,秦建设.盾构衬砌管片接头力学分析及双直线刚度模型研究.岩土力学,2006,27(12):2154-2158. ZHU Wei,ZHONG Xiao-chun,QIN Jian-she.Mechanical Analysis of Segment Joint of Shield Tunnel and Research on Bilinear Joint Stiffness Model.Rock and Soil Mechanics,2006,27(12):2154-2158. LI X J,YAN Z G,WANG Z,et al.A Progressive Model to Simulate the Full Mechanical Behavior of Concrete Segmental Lining Longitudinal Joints.Engineering Structures,2015,93:97-113.

基金

国家自然科学基金项目（51378388）；上海市科委科研计划项目（15XD1522500，16DZ1201701）

PDF全文下载(1216 KB)

1849

Accesses

Citation

Detail

段落导航

摘要
Abstract
关键词
Key words
引用本文
参考文献
基金

收稿日期	出版日期
2017-04-18	2017-08-20
发布日期
2017-09-13

选择文件类型/文献管理软件名称

选择包含的内容

摘要

Abstract

关键词

Key words

引用本文

{{custom_sec.title}}

{{custom_sec.title}}

参考文献

{{custom_fnGroup.title_cn}}

脚注

基金

模态框（Modal）标题

选择文件类型/文献管理软件名称

选择包含的内容

摘要

Abstract

关键词

Key words

引用本文

{{custom_sec.title}}

{{custom_sec.title}}

参考文献

{{custom_fnGroup.title_cn}}

脚注

基金