| 大跨度小净距群洞隧道施工方案优化研究 |
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| 引用本文： | 庄宁,廖少明,孙忠成,朱合华. 大跨度小净距群洞隧道施工方案优化研究[J]. 地下空间与工程学报, 2007, 3(1): 96-100 |
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| 作者姓名： | 庄宁 廖少明 孙忠成 朱合华 |
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| 作者单位： | 同济大学地下建筑与工程系,上海,200092;中铁十九局有限公司,辽阳,1110001 |
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| 摘 要： | 上海国际航运中心洋山深水港区小洋山隧道工程为国内第一座小净距大跨度群洞隧道,对其进行施工方案优化分析有重大理论与实际意义.作者选择了三种不同施工顺序工况进行有限元数值模拟分析,对比各工况屈服度云图、最危险阶段受影响最大的隧道衬砌上的弯矩和竖直位移的增量值,以此为准则,得出最合理的施工顺序,并在这基础上计算了隧道不同间距对群洞隧道的影响.从施工顺序和合理间距两方面进行数值分析,从而使得实际隧道施工方案得到优化.
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| 关 键 词： | 群洞 衬砌 施工顺序 屈服度 合理间距 |
| 文章编号： | 1673-0836（2007）01-0096-05 |
| 修稿时间： | 2006-08-07 |
Optimization Analysis of Construction Schemes for Large Span and Small Clear Distance Group Tunnels |
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| ZHUANG Ning,LIAO Shao-ming,SUN Zhong-cheng,ZHU He-hua. Optimization Analysis of Construction Schemes for Large Span and Small Clear Distance Group Tunnels[J]. Chinese Journal of Underground Space and Engineering, 2007, 3(1): 96-100 |
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| Authors: | ZHUANG Ning LIAO Shao-ming SUN Zhong-cheng ZHU He-hua |
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| Affiliation: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P. R. China 2. China Railway the 19th Bureau Co. Lid, Liaoyang 111000, P. R. China |
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| Abstract: | The small Yangsan Tunnel of Shanghai international shipping center Yangsan deep-water port area is the first small clear distanee and large span group tunnels in our country. The optimization analysis of construction schemes for this tunnel has important theoretical and practical meaning. The authors have selected three operating models for finite element simulation analysis. By comparing the yielding degree around the tunnels, the moment and the vertical displacement of lining in the most dangerous tunnel, the optimal construction scheme can be obtained. This paper also studies the influence of different distance to group tunnels. Based on analysis on the two aspects as construction sequence and proper distance , the practical construction scheme is optimized. |
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| Keywords: | group tunnels lining construction sequence yielding degree proper distance |
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