水压作用对通缝拼装管片结构力学性能的影响研究

梁坤; 封坤; 肖明清; 何川; 谢俊; 方若全

doi:10.11779/CJGE201911008

水压作用对通缝拼装管片结构力学性能的影响研究 English Version

梁坤¹,
封坤^1, ,,
肖明清^2,3,
何川¹,
谢俊^2,3,
方若全¹

1. 西南交通大学交通隧道工程教育部重点实验室,四川成都 610031;
2. 中铁第四勘察设计院集团有限公司,湖北武汉 430071;
3. 水下隧道技术国家地方联合工程研究中心,湖北武汉 430071

基金项目: 国家电网公司科技项目（SHJJGC1700023）

详细信息

作者简介:
梁坤(1993— ),男,硕士研究生,研究方向为盾构隧道结构设计理论研究。E-mail: kunliang556324@outlook.com。

通讯作者:
封坤，E-mail：windfeng813@163.com

中图分类号: TU43;U455
计量
- 文章访问数: 240
- HTML全文浏览量: 7
- PDF下载量: 173
出版历程
- 收稿日期: 2019-03-10
- 发布日期: 2019-11-24

Water-pressure action on structural behaviors of straight assembling segmental linings of underwater shield tunnels

1. Key Laboratory of Transportation Tunnel Engineering, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China;
2. China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430071, China;
3. National & Local Joint Engineering Research Center of Underwater Tunnel Technology, Wuhan 430071, China

摘要

摘要: 以苏通GIL综合管廊工程为背景开展了通缝拼装方式下的原型试验,从水压对管片环的受力、形变及抗裂性方面着手,对通缝拼装条件下水压力对管片结构力学性能影响进行了研究。试验结果表明：①通缝拼装管片结构在拱顶位置出现较大的位移,水压力的增大对管片结构拱顶形变和整体椭圆变形的控制有良好的效果,但管片最大单点位移相比椭圆度更易达到限值;②通缝拼装管片结构建议取单点最大形变率2‰~2.5‰作为形变控制标准;③在高水压作用下通缝拼装管片结构的纵缝张开主要发生在封顶块附近,由于该处纵缝密集、结构刚度最小、变形最大所致,水压力的增大对该处纵缝张开有明显的限制作用,且可减小相应连接螺栓的受力;④水压力的增大会较大幅度地提升管片的抗裂性能,并减小管片主筋的拉应力,但也会使主筋的压应力和箍筋应力有较大幅度的升高;⑤水压力的升高在一定程度上提高了管片结构的受力性能,但高水压使管片结构处于高轴压受力状态,易发生纵缝处的压剪破坏,该破坏具突发性。研究成果对水下盾构隧道的设计具有重要的指导意义。
- 盾构隧道 /
- 水压作用 /
- 通缝拼装 /
- 原型试验 /
- 受力性能
Abstract: For Suzhou-Nantong GIL power gallery tunnel, the prototype tests using the straight assembling segmental lining method are carried out. From the aspect of water pressures on the force, deformation and crack resistance of the segmental structure, the influences of water pressures on the mechanical properties of the segmental structure under the straight joint assembling condition are studied. The results show that: (1) The straight assembling segmental lining has a large displacement at the position of dome, and increasing the water pressures can effectively control the dome deformation and the overall elliptical deformation of the segmental structure. However, the maximum single point displacement of the segment is easier to reach the limit than the ellipticity. (2) It is recommended to take the single-point maximum deformation rate of 2‰~2.5‰ as the deformation control standard. (3) Under the effects of high water pressures, the joint opening of the segmental structure mainly occurs near the K-block, which is caused by dense joints, the minimum structural rigidity and the maximum deformation. The increase in the water pressures has a significant limiting effect on the longitudinal joint opening, and can reduce the force of the corresponding connecting bolts. (4) Increasing the water pressures will greatly improve the crack resistance of the segmental structure and reduce the tensile stress of the main reinforcement of the segmental structure, but it will also increase its compressive stress and hoop stress. (5) The increase in the water pressures improves the mechanical properties of the segment structure to a certain extent. However, the high water pressures cause the segmental structure to be in a state of high axial compression, which is prone to crushing and shearing at the joint and the damage is sudden. The research results have important guiding significance for the design of underwater shield tunnels.
- shield tunnel /
- water-pressure action /
- straight assembling /
- prototype test /
- force performance

HTML全文

参考文献(21)

[1]	何川, 封坤. 大型水下盾构隧道结构研究现状与展望[J]. 西南交通大学学报, 2011, 46(1): 1-11. (HE Chuan, FENG Kun.Review and prospect of structure research of underwater shield tunnel with large cross-section[J]. Journal of Southwest Jiaotong University, 2011, 46(1): 1-11. (in Chinese))
[2]	ITA-Working Group Research. Processed recommendation for design of lining of shield tunnel[R]. Lausanne: Tunneling Association, 1997: 1-26.
[3]	谢红强, 何川, 李围. 江底盾构隧道施工期外水压分布规律的现场试验研究[J]. 岩土力学, 2006, 27(10): 1851-1855. (XIE Hong-qiang, HE Chuan, LI Wei.Experimental study on distribution of external water pressure around sub-river shield tunnel in construction period[J]. Rock and Soil Mechanics, 2006, 27(10): 1851-1855. (in Chinese)).
[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 Ji-ming.Mechanical properties of double layer lining of underwater shield tunnel[D]. Chengdu: Southwest Jiaotong University, 2012. (in Chinese))
[5]	封坤. 大断面水下盾构隧道管片衬砌结构的力学行为研究[D]. 成都: 西南交通大学, 2012. (FENG Kun.Research on mechanical behavior of segmental lining structure for underwater shield tunnel with large cross-section[D]. Chengdu: Southwest Jiaotong University, 2012. (in Chinese))
[6]	张建刚, 何川. 高水压大断面盾构隧道管片衬砌结构静力学行为模型试验研究[J]. 水文地质工程地质, 2009, 36(4): 80-84. (ZHANG Jian-gang, HE Chuan.Experimental study on static behavior model of segment lining structure of high water pressure large section shield tunnel[J]. Hydro Geological Engineering Geology, 2009, 36(4): 80-84. (in Chinese))
[7]	唐长东. 高水压盾构隧道整环管片的力学特性研究[D]. 广州: 华南理工大学, 2012. (TANG Chang-dong.Study on mechanical properties of high pressure of shield tunnel segment domain[D]. Guangzhou: South China University of Technology, 2012. (in Chinese))
[8]	周济民, 何川, 肖明清, 等. 狮子洋水下盾构隧道衬砌结构受力的现场测试与计算分析[J]. 铁道学报, 2012, 34(7): 115-121. (ZHOU Ji-min, HE Chuan, XIAO Ming-qing, et al.The field test and calculation analysis of the force of the lining structure of the underwater shield tunnel in the lion ocean[J]. Journal of Railway Science, 2012, 34(7): 115-121. (in Chinese))
[9]	彭博. 水下盾构隧道管片衬砌结构渐进性破坏机理研究[D]. 成都: 西南交通大学, 2015. (PENG Bo.Research on progressive damage of segment linling of underwater shield tunnel[D]. Chengdu: Southwest Jiaotong University, 2015. (in Chinese))
[10]	黄清飞, 袁大军, 王梦恕. 水位对盾构隧道管片结构内力影响研究[J]. 岩土工程学报, 2008, 30(8): 1112-1120. (HUANG Qin-fei, YUAN Da-jun, WANG Meng-shu.Influence of water level on internal force of segments of shield tunnels[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(8): 1112-1120. (in Chinese))
[11]	曾东洋, 何川. 盾构隧道衬砌结构内力计算方法的对比分析研究[J]. 地下空间与工程学报, 2005, 1(5): 707-712. (ZENG Dong-yang, HE Chuan.Comparsion and analysis research of different shield tunnel lining internal forces design methods[J]. Chinese Journal of Underground Space and Engineering, 2005, 1(5): 707-712. (in Chinese))
[12]	王士民, 姚佳兵, 何祥凡, 等. 水压对盾构管片衬砌力学特征与破坏形态的影响模型试验研究[J]. 土木工程学报, 2018, 51(4): 111-120. (WANG Shi-min, YAO Jia-bing, HE Xiang-fan, et al.Research on the mechanical property and failure mode of shield tunnels with different hydraulic pressure by model test[J]. China Civil Engineering Journal, 2018, 51(4): 111-120. (in Chinese))
[13]	封坤, 何川, 苏宗贤. 南京长江隧道原型管片结构破坏试验研究[J]. 西南交通大学学报, 2011, 46(4): 564-571. (FENG Kun, HE Chuan, SU Zong-xian.Prototype test on failure characteristic of segmental lining structure for Nanjing Yangtze River Tunnel[J]. Journal of Southwest Jiaotong University, 2011, 46(4): 564-571. (in Chinese))
[14]	何川, 封坤, 晏启祥. 高速铁路水下盾构隧道管片内力分布规律研究[J]. 铁道学报, 2012, 34(4): 101-109. (HE Chuan, FENG Kun, YAN Qi-xiang.Study on Inner force distribution of segmental lining of high-speed railway underwater shield tunnel[J]. Journal of the China Railway Society, 2012, 34(4): 101-109. (in Chinese))
[15]	毕湘利, 柳献, 王志秀, 等. 通缝拼装盾构隧道结构极限承载力的足尺试验研究[J]. 土木工程学报, 2014, 47(10): 117-127. (BI Xiang-li, LIU Xian, WANG Zhi-xiu, et al.Experimental investigation on the ultimate bearing capacity of continuous-jointed segmental tunnel linings[J]. China Civil Engineering Journal, 2014, 47(10): 117-127. (in Chinese))
[16]	LIU Xian, DONG Zi-bo, BAI Yun, et al.Investigation of the structural effect induced by stagger joints in segmental tunnel linings: first results from full-scale ring tests[J]. Tunnelling and Underground Space Technology, 2017, 66: 1-18.
[17]	何川, 封坤, 苏宗贤. 大断面水下盾构隧道原型结构加载试验系统的研发与应用[J]. 岩石力学与工程学报, 2011, 30(2): 254-266. (HE Chuan, FENG Kun, SU Zong-xian.Development and application of loading test system of prototype structure for underwater shield tunnel with large section-cross[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(2): 254-266. (in Chinese))
[18]	GB 50446—2017 盾构法隧道施工与验收规范[S]B 50446—2017 盾构法隧道施工与验收规范[S]. 北京: 中国建筑工业出版社, 2017. (GB 50446—2017 Shield tunnel construction and acceptance specification[S]B 50446—2017 Shield tunnel construction and acceptance specification[S]. Beijing: China Architecture and Building Press, 2017. (in Chinese))
[19]	张旭辉, 杨志豪, 洪弼宸, 等. 盾构隧道结构健康评价的变形指标研究[J]. 隧道与轨道交通, 2014(4): 7-13. (ZHANG Xu-hui, YANG Zhi-hao, HONG Bi-chen, et al.Study on deformation index of shield tunnel structural health evaluation[J]. Underground Engineering and Tunnels, 2014(4): 7-13. (in Chinese))
[20]	邓朝辉. 盾构隧道管片接缝防水设计[J]. 铁道建筑技术, 2008(增刊1): 157-159, 163. (DENG Zhao-hui.Waterproof design of joints of shield tunnel segments[J]. Railway Construction Technology, 2008(S1): 157-159, 163. (in Chinese))
[21]	WEI H, WANG Y, LUO J.Influence of magnetic water on early-age shrinkage cracking of concrete[J]. Construction and Building Materials, 2017, 147: 91-100.

施引文献(19)

期刊类型引用(11)

1.	邢玮，朱锐，张晨，王羿，周峰. 高寒地区供水渠道水热特征及其长期演化规律. 南京工业大学学报(自然科学版). 2024(01): 93-102 . 百度学术
2.	柴石玉，张凌凯. 干湿-冻融循环对碱激发粉煤灰-矿粉改性膨胀土力学特性的损伤机理研究. 工程力学. 2024(11): 157-167 . 百度学术
3.	张晨，陈红永，王羿，蔡正银. 寒区工程离心模型试验地基表面换热特性及热边界设置方法研究. 水利学报. 2023(06): 729-738 . 百度学术
4.	凌松耀，蹇永明，张智勇，李卓，黄翀垚，郭兴会，张奇. 融雪-降雨型滑坡失稳机理. 科学技术与工程. 2023(21): 8980-8987 . 百度学术
5.	蔡正银，朱洵，张晨，黄英豪. 高寒区膨胀土渠道边坡性能演变规律. 中南大学学报(自然科学版). 2022(01): 21-50 . 百度学术
6.	朱锐，郭万里. 寒区渠道粉土质砂换填料力学特性试验研究. 中南大学学报(自然科学版). 2022(04): 1461-1471 . 百度学术
7.	蔡正银，张晨，朱洵，黄英豪，王羿. 高寒区长距离供水工程能力提升与安全保障技术. 岩土工程学报. 2022(07): 1239-1254 . 本站查看
8.	李燕，王斯海，朱锐. 复杂边界条件下膨胀土的体变特性与抗压强度研究. 水利水运工程学报. 2022(04): 106-113 . 百度学术
9.	朱锐，蔡正银，黄英豪，张晨，郭万里，朱洵. 湿干冻融循环下渠水入渗特性的离心模型试验和现场试验研究（英文）. Journal of Central South University. 2021(05): 1519-1533 . 百度学术
10.	朱锐，蔡正银，黄英豪，张晨，郭万里. 冻融过程对高寒区渠道基土力学特性的影响. 农业工程学报. 2021(14): 108-116 . 百度学术
11.	陈永，黄英豪，朱洵，吴敏，王硕，朱锐. 冻融循环对膨胀土变形和力学特性的影响研究. 水利水运工程学报. 2021(05): 112-119 . 百度学术