| 盾构隧道预应力管片接头的模型试验研究 |
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| 引用本文： | 于宁,白廷辉,朱合华. 盾构隧道预应力管片接头的模型试验研究[J]. 地下空间与工程学报, 2009, 5(3) |
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| 作者姓名： | 于宁 白廷辉 朱合华 |
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| 作者单位： | 上海申通地铁集团有限公司,上海,201103;同济大学地下建筑与工程系,上海,200092 |
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| 摘 要： | 盾构隧道普通混凝土管片接头的抗弯刚度主要是通过现场试验确定,目前尚无现成的公式或者图表可遵循,对于预应力管片这一新型的结构型式则更有必要对其接头的正负转角刚度,为此进行了弯曲的预应力管片接头试验.文章介绍了模型试验的设计及试验过程,通过试验数据分析了影响预应力管片接头刚度的各项因素,如施加预应力的大小、偏心距等,并得出了计算其刚度的经验公式.
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| 关 键 词： | 盾构隧道 预应力管片 模型试验 接头试验 接头刚度 |
Model Experimental Study on Joints Stiff of Precast and Prestressed Concrete Lining in Shield Tunnels |
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| YU Ning,BAI Ting-hui,ZHU He-hua. Model Experimental Study on Joints Stiff of Precast and Prestressed Concrete Lining in Shield Tunnels[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(3) |
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| Authors: | YU Ning BAI Ting-hui ZHU He-hua |
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| Affiliation: | YU Ning1,BAI Ting-hui1,ZHU He-hua2 (1.Shanghai Shentong Metro Group,Shanghai 201103,China,2.Department of Underground Engineering,Tongji University,Shanghai 200092,P.R.China) |
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| Abstract: | The stiffness of common concrete lining is certified by site experiments and could not be got from existing formula and charts.As for a new structure,it is necessary to explore the stiffness of precast and prestressed concrete lining for shield tunnels.In this paper,the design and the procedure of the model experiments are introduced and some factors are analyzed by the data from experiments,such as the values of off-center distance and prestressing force,which affect the stiffness and the emperic formula o... |
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| Keywords: | shield tunnel precast and prestressed concrete lining model experiments joints experiments stiffness of joints |
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