Unified model for internal force and deformation of shield segment joints and experimental analysis
ZHU He-hua1, HUANG Bo-qi1, LI Xiao-jun1, HASHIMOTO Tadashi2
1. State Key Laboratory for Disaster Reduction in Civil Engineering and Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China; 2. Geo-research Institute of Osaka, Osaka, Japan
Abstract：First, based on a series of tests on reinforced concrete segment joints, the rotational moment-angle models for segment joints including linear, bilinear and nonlinear models and the axial force-deformation and shear force-deformation piecewise models are summarized and proposed, and the theoretical models are also given to describe the effect of the initial torque of bolts and axial force on joint stiffness. Second, based on the bending tests on flat plate segments and arch segments with or without sealing materials, the parameter determination methods for various stiffness models and the model selection principles are proposed, and the effect of the initial torque of bolts and axial force on joint stiffness is discussed. Based on the shear tests on flat plate segment joints with or without sealing materials, the parameter determination method for three-stage shear force resistance stiffness model is proposed. The results have proved the applicability of these joint stiffness models and will promote the application of beam-joint model theory in design practice.
朱合华, 黄伯麒, 李晓军, 桥本正. 盾构衬砌管片接头内力-变形统一模型及试验分析[J]. 岩土工程学报, 2014, 36(12): 2153-2160.
ZHU He-hua, HUANG Bo-qi, LI Xiao-jun, HASHIMOTO Tadashi. Unified model for internal force and deformation of shield segment joints and experimental analysis. Chinese J. Geot. Eng., 2014, 36(12): 2153-2160.
[1] 朱合华, 崔茂玉, 杨金松. 盾构衬砌管片的设计模型与荷载分布的研究[J]. 岩土工程学报, 2000, 22(2): 190-194. (ZHU He-hua, CUI Mao-yu, YANG Jin-song. Design model for shield lining segments and distribution of loads[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(2): 190-194. (in Chinese)) [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 Hou-mei, GUO Chi, FU De-ming. A study on the stiffness model of circular tunnel prefabricated lining[J]. Chinese Journal of Geotechnical Engineering, 2000, 22(3): 309-313. (in Chinese)) [3] 蒋洪胜, 侯学渊. 盾构法隧道管片接头转动刚度的理论研究[J]. 岩石力学与工程学报, 2004, 23(9): 1574-1577. (JIANG Hong-sheng, HOU Xue-yuan. Theoretical study of rotational stiffness of joint in shield tunnel segments[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(9): 1574-1577. (in Chinese)) [4] 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[J]. 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 stiff model[J]. Rock and Soil Mechanics, 2006, 27(12): 2154-2158. (in Chinese)) [5] 张冬梅, 樊振宇, 黄宏伟. 考虑接头力学特性的盾构隧道衬砌结构[J]. 岩土力学, 2010, 21(8): 2546-2551. (ZHANG Dong-mei, FAN Zhen-yu, HUANG Hong-wei. Calculation method of shield tunnel lining considering mechanical characteristics of joints[J]. Rock and Soil Mechanics, 2010, 31(8): 2546-2551. (in Chinese)) [6] 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. Bending stiffness of segment joint and its effects on segment internal force for underwater shield tunnel with large cross section[J]. China Railway Science, 2013, 34(5): 46-53. (in Chinese)) [7] 孙 钧, 汪炳鉴. 地下结构有限元法解析[M]. 上海: 同济大学出版社, 1988: 223-224. (SUN Jun, WANG Bing-jian. Finite element analysis of underground structure[M]. Shanghai: Tongji University Press, 1988: 223-224. (in Chinese))
