| 地铁区间盾构隧道衬砌纵向接头抗弯刚度试验研究 |
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| 引用本文： | 周海鹰,陈廷国,李立新.地铁区间盾构隧道衬砌纵向接头抗弯刚度试验研究[J].工业建筑,2010,40(7). |
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| 作者姓名： | 周海鹰 陈廷国 李立新 |
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| 作者单位： | 1. 大连理工大学建设工程学部,辽宁大连,116023
2. 沈阳建筑大学土木工程学院,沈阳,110168 |
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| 基金项目： | 沈阳市科技局、财政局资助项目 |
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| 摘 要： | 基于衬砌管片接头荷载试验,分析影响纵向接头抗弯刚度的主要因素,研究不同影响因素作用下纵向接头抗弯刚度的变化规律,建立衬砌管片纵向接头抗弯刚度理论计算模型。研究认为:当轴力较小时各种影响因素对纵向接头抗弯刚度影响较大,当轴力达到一定值时各种因素对纵向接头抗弯刚度影响有限;管片纵向接头构造对接头抗弯刚度影响尤为显著。
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| 关 键 词： | 盾构隧道 衬砌管片 接头刚度 影响因素 理论模型 |
STUDY ON JOINT BENDING STIFFNESS AND INFLUENCING FACTORS OF METRO SHIELD TUNNELING LINING |
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| Zhou Haiying,Chen Tingguo,Li Lixin.STUDY ON JOINT BENDING STIFFNESS AND INFLUENCING FACTORS OF METRO SHIELD TUNNELING LINING[J].Industrial Construction,2010,40(7). |
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| Authors: | Zhou Haiying Chen Tingguo Li Lixin |
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| Abstract: | Based on joint load test of lining segment,the change regularity of the different factors influencing the bending stiffness of a longitudinal joint was studied,and then the calculation formula for the bending stiffness of longitudinal joint was deduced. The results indicate that the different factors have great effect on the bending stiffness of longitudinal joint when the axial force is relatively small,and they have limited effect on the bending stiffness of longitudinal joint when the axial force is up to a certain level relatively great. The joint’s structure has a significant influence on the bending stiffness of longitudinal joint. |
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| Keywords: | shield tunneling lining segment joint bending stiffness influencing factors theoretical model |
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