Control method and mechanism of large transverse deformation of shield segment using TRC
LIU Dejun1，HUANG Hongwei2，3，ZUO Jianping1，XUE Yadong2，3，LI Yingjie1
(1. School of Mechanics and Civil Engineering，China University of Mining and Technology，Beijing 100088，China；2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education，Tongji University，Shanghai 200092，China；3. Department of Geotechnical Engineering，Tongji University，Shanghai 200092，China)
Abstract：The strengthening characteristics and the shortcoming of the strengthening methods commonly used at the inner interface of the shield tunnel were analyzed and the textile reinforced concrete(TRC) was proposed to control the transverse deformation. The method of simulating the strengthened layer and interface was presented and validated by experiment. The responses of lateral deformation and joint opening at the top arch were analyzed with numerical analysis in terms of the stiffness coefficient of the formation，the timing of the strengthening construction，the amount of the textile and the arrangement of the reinforcement layer. The mechanism of TRC in controlling the transverse deformation of shield tunnel was revealed based on the analysis of deformation and internal force of the segment. The results of the research indicate that TRC can effectively restrict the horizontal convergence and joint opening. The reinforcement effect is better if the stiffness of ground layers are lower. The increasing in textile layers enhanced the control effect，however，the efficiency of fiber utilization was decreased. The reasonable layout of the strengthening layer was proposed to be set in the tension section of the arch between the inflection points. The longer the strengthening layer，the better the controlling effect.
刘德军1，黄宏伟2，3，左建平1，薛亚东2，3，李英杰1. 盾构管片横向大变形TRC控制方法及作用机制研究[J]. 岩石力学与工程学报, 2017, 36(8): 1889-1898.
LIU Dejun1，HUANG Hongwei2，3，ZUO Jianping1，XUE Yadong2，3，LI Yingjie1. Control method and mechanism of large transverse deformation of shield segment using TRC. , 2017, 36(8): 1889-1898.
[1] 王如路. 上海轨道交通隧道结构安全性分析[J]. 地下工程与隧道，2011，(4)：37–44.(WANG Rulu. Structural safety analysis of Shanghai rail transit tunnel[J]. Underground Engineering and Tunnels，2011，(4)：37–44.(in Chinese))
[2] 何 川，唐志成，汪 波，等. 内表面补强对缺陷病害隧道结构承载力影响的模型试验研究[J]. 岩土力学，2009，30(2)：406–412.(HE Chuan，TANG Zhicheng，WANG Bo，et al. Research on effect of inner surface reinforcing on structure bearing capacity by model test in defective tunnel[J]. Rock and Soil Mechanics，2009，30(2)：406–412.(in Chinese))
[3] 罗立娜. 碳纤维补强条件下公路隧道衬砌计算方法的研究[硕士学位论文][D]. 上海：同济大学，2006.(LUO Lina. Research on the calculation method of CFRP strengthened highway tunnel lining[M. S. Thesis][D]. Shanghai：Tongji University，2006.(in Chinese))
[4] 周大举. 基于可靠度理论的碳纤维加固公路隧道衬砌计算方法的研究[硕士学位论文][D]. 上海：同济大学，2008.(ZHOU Daju. Calculation method of CFRP strengthened highway tunnel lining based on reliability theories[M. S. Thesis][D]. Shanghai：Tongji University，2008.(in Chinese))
[5] 杨成忠，黄 明，刘新荣，等. 碳纤维布用于深埋隧道衬砌裂缝的加固效果[J]. 解放军理工大学学报：自然科学版，2010，11(3)：322–327.(YANG Chengzhong，HUANG Ming，LIU Xinrong，et al. Effect of lining crack treatment using carbon fiber in deep buried tunnel[J]. Journal of PLA University of Science and Technology：Natural Science，2010，11(3)：322–327.(in Chinese))
[6] 杨 勇. 某运营地铁隧道管片钢环加固工法介绍[J]. 工程建设，2012，11(12)：41–43.(YANG Yong. Reinforcement method of segment steel ring for an operation metro tunnel[J]. Engineering Construction，2012，11(12)：41–43.(in Chinese))
[7] 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[J]. 岩石力学与工程学报，2013，32(11)：2 300–2 306.(LIU Xian，TANG Min，LU Liang，et al. Experimental study of ultimate bearing capacity of shield tunnel reinforced by full-ring steel plate[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(11)：2 300–2 306.(in Chinese))
[8] 张冬梅，刘梓圣，阎静雅. 软土盾构隧道横向大变形侧向注浆控制机制研究[J]. 岩土工程学报，2014，36(12)：2 203– 2 212.(ZHANG Dongmei，LIU Zisheng，YAN Jingya. Effective control of large transverse deformation of shield tunnels using grouting in soft deposits[J]. Chinese Journal of Geotechnical Engineering，2014，36(12)：2 203–2 212.(in Chinese))
[9] Working Group No.6 Maintenance and Repair. International Tunneling Association. Study of methods for repair of tunnel linings[R]. Brown：International Tunneling Association，2001.
[10] 周 松，韩 磊，叶冠林，等. 浅覆大断面盾构隧道横截面受力变形特性研究[J]. 土木工程学报，2015，48(增2)：284–287.(ZHOU Song，HAN lei，YE Guanlin，et al. Analysis on inner force and deformation characteristics of large shallow shield tunnel cross section[J]. China Civil Engineering Journal，2015，48(Supp.2)：284–287.(in Chinese))
[11] 黄宏伟，黄 栩，SCHWEIGER F H. 基坑开挖对下卧运营盾构隧道影响的数值模拟研究[J]. 土木工程学报，2012，45(3)：182–189.(HUANG Hongwei，HUANG Xu，SCHWEIGER F H. Numerical analysis of the influence of deep excavation on underneath existing road tunnel[J]. China Civil Engineering Journal，2012，45(3)：182–189.(in Chinese))
[12] 蒋洪胜，侯学渊. 软土地层中的圆形隧道载荷模式研究[J]. 岩石力学与工程学报，2003，22(4)：651–658.(JIANG Hongsheng，HOU Xueyuan. Study of the loading pattern on circular tunnel in soft ground[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(4)：651–658.(in Chinese))
[13] 尹世平. TRC基本力学性能及其增强钢筋混凝土梁受弯性能研究[博士学位论文][D]. 大连：大连理工大学，2010.(YIN Shiping. Research on TRC mechanical behavior and flexural performance of concrete beam reinforced with TRC[Ph. D. Thesis][D]. Dalian：Dalian University of Technology，2010.(in Chinese))
[14] YOUSEF A A，HUSSEIN M E，SALEH H A，et al. Experimental and numerical study for the shear strengthening of RC beams using textile reinforced mortar[J]. Journal of Composites for Construction，2012，16(1)：74–90.
[15] BRUCKNER A，ORTLEPP R，CURBACH M. Textile reinforced concrete for strengthening in bending and shear[J]. Materials and Structures，2006，39(8)：741–748.
[16] LARBI A S，CONTAMINE R，FERRIER E，et al. Shear strengthening of RC beams with textile reinforced concrete(TRC) plate[J]. Construction and Building Materials，2010，24(10)：1 928– 1 936.
[17] 徐世烺，尹世平. 纤维编织网联合钢筋增强混凝土梁受弯性能解析理论[J]. 中国科学：技术科学，2010，40(6)：619–629.(XU Shiliang，YIN Shiping. Analytical theory of flexural behavior of concrete beam reinforced with textile-combined steel[J]. Science China Technology，2010，40(6)：619–629.(in Chinese))
[18] 黄宏伟，刘德军，薛亚东，等. 基于快凝复合砂浆和纤维编织网的隧道早强快速加固方法[P]. 中国：ZL201310459411.2，2015–06–03.(HUANG Hongwei，LIU Dejun，XUE Yadong，et al. Early strength and fast strengthening method of tunnel based on fast setting composite mortar and textile[P]. China：ZL201310459411.2，2015–06–03.(in Chinese))
[19] 张厚美，张正林，王建华. 盾构隧道装配式管片接头三维有限元分析[J]. 上海交通大学学报，2003，37(4)：567–569.(ZHANG Houmei，ZHANG Zhenglin，WANG Jianhua. 3D FEM analysis on prefabricated segment joints of shield tunnel[J]. Journal of Shanghai Jiaotong University，2003，37(4)：567–569.(in Chinese))
[20] 叶 飞，朱合华，丁文其. 考虑管片环间接头效应的盾构隧道抗浮计算与控制分析[J]. 中国公路学报，2008，21(3)：76–80.(YE Fei，ZHU Hehua，DING Wenqi. Calculation for anti-buoyangcy and control analysis of shield tunnel considering effect of joint of segment rings[J]. China Journal of Highway and Transport，2008，21(3)：76–80.(in Chinese))
[21] 刘德军. 隧道衬砌开裂机制及纤维编织网增强混凝土(TRC)加固方法研究[博士学位论文][D]. 上海：同济大学，2014.(LIU Dejun. Study on cracking mechanism of mountain tunnel lining and strengthened by textile-reinforced concrete[Ph. D. Thesis][D]. Shanghai：Tongji University，2014.(in Chinese))
[22] ACI 318–11. Building code requirements for structural concrete and commentary[S]. Detroit，MI，USA：American Concrete Institute，2011.
[23] SILFWERBRAND J. Shear bond strength in repaired concrete structures[J]. Materials and Structures，2003，36(6)：419–424.
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