| 地铁隧道施工过古城墙的地表变形及控制措施 |
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| 引用本文： | 冯超,王喆,潘娜娜. 地铁隧道施工过古城墙的地表变形及控制措施[J]. 现代隧道技术, 2011, 48(5): 143-147 |
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| 作者姓名： | 冯超 王喆 潘娜娜 |
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| 作者单位： | 1. 中铁电气化局西安铁路工程有限公司,西安,710032
2. 北京住总市政工程有限责任公司,北京,100029 |
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| 摘 要： | 西安地铁二号线区间隧道施工对城墙等国家级文物的影响是隧道安全施工中需要解决的关键问题之一。文章针对该地铁工程介绍了上行线隧道盾构下穿护城河及城墙时的地表变形控制措施和施工变形监测方案,并对监测结果进行分析。分析结果表明,隧道盾构施工中,造成地表沉降是多种因素共同作用的结果;盾构施工过程中,注浆必须同步、足量且补浆及时;随着盾构的推进,需要不断调整土压力以适应地层的变化。隧道已经安全通过城墙,表明所采用的地表沉降控制措施和监测方案是合理可行的。
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| 关 键 词： | 地铁区间隧道 城墙 盾构 地表沉降 |
Study on the Ground Surface Subsidence Induced by Metro Tunnel Under-crossing City Wall |
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| Feng Chao,Wang Zhe,Pan Nana. Study on the Ground Surface Subsidence Induced by Metro Tunnel Under-crossing City Wall[J]. Modern Tunnelling Technology, 2011, 48(5): 143-147 |
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| Authors: | Feng Chao Wang Zhe Pan Nana |
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| Affiliation: | Feng Chao1 Wang Zhe1 Pan Nana2(1 Xi'an Railway Engineering Co.,Ltd.,China Railway Electrification Bureau,Xi'an 710032,2 Beijing Union Construction Municipal Engineering Co.,Ltd,Beijing 100029) |
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| Abstract: | Running tunnel on Xi'an metro Line 2 under-crosses the city wall,the effect of the construction on national historical relics is the crucial issue to be addressed.Countermeasures to ground subsidence and construction deformation monitoring scheme concerning the shield driving of upline-tunnel under-crossing city wall were formulated.Monitoring results showed that ground settlements were dependent on many factors and their interaction during shield tunneling.In the course of shield tunneling,grouting must be... |
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| Keywords: | Metro running tunnel City wall Shield Ground settlement |
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