| 某浅埋偏压连拱隧道二衬开裂原因分析 |
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| 引用本文： | 张永兴,阳军生,晏莉. 某浅埋偏压连拱隧道二衬开裂原因分析[J]. 长沙理工大学学报(自然科学版), 2007, 4(3): 44-48 |
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| 作者姓名： | 张永兴 阳军生 晏莉 |
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| 作者单位： | 长沙理工大学,桥梁与结构工程学院,湖南,长沙,410076;中南大学,土木建筑学院,湖南,长沙,410075 |
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| 摘 要： | 某浅埋偏压连拱隧道中导洞开挖中隔墙浇筑后,对靠近山体内侧的右洞先行开挖和支护,再进行靠近山体外侧的左洞的开挖,右洞二衬出现部分地段纵向开裂.针对该隧道实际情况,建立数值分析模型,分析了现有地质和施工条件下该隧道二衬开裂的主要原因,提出了类似条件下合理的连拱隧道施工工序.
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| 关 键 词： | 连拱隧道 浅埋 偏压 二衬开裂 |
| 文章编号： | 1672-9331（2007）03-0044-05 |
| 修稿时间： | 2007-04-11 |
Reasons why the second lining of one shallow asymmetry double-arch tunnel cracks |
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| ZHANG Yong-xing,YANG Jun-sheng,YAN Li. Reasons why the second lining of one shallow asymmetry double-arch tunnel cracks[J]. Journal of Changsha University of Science and Technology(Natural Science), 2007, 4(3): 44-48 |
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| Authors: | ZHANG Yong-xing YANG Jun-sheng YAN Li |
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| Affiliation: | 1. College of Bridge and Structure Engineering, Changsha University of Science and Technology, Changsha 410076, China; 2. School of Civil Engineering and Architecture, Central South University, Changsha 410075, China |
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| Abstract: | During the construction of a shallow asymmetry double-arch tunnel, the right tunnel near the inner of mountain has been excavated firstly, and then the left tunnel near the exterior of mountain excavated. However, some cracks occurred in the second lining of the right tunnel. Based on the field geological conditions and construction circumstances, an analytical model was created to analyze the reasons of the cracks. A reasonable construction procedure of shallow asymmetry double-arch tunnel was put forward in this paper. |
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| Keywords: | double-arch tunnel shallow asymmetry pressure lining crack |
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