| 盾构隧道侧穿地下连续墙的轴线控制研究 |
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| 引用本文： | 孙玉永,周顺华. 盾构隧道侧穿地下连续墙的轴线控制研究[J]. 地下空间与工程学报, 2009, 5(1) |
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| 作者姓名： | 孙玉永 周顺华 |
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| 作者单位： | 同济大学道路与交通工程教育部重点实验室,上海,201804;同济大学道路与交通工程教育部重点实验室,上海,201804 |
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| 摘 要： | 既有建(构)筑物的存在改变了周围土层的应力场分布,不可避免地会影响到盾构推进的轴线控制.针对上海市地铁7号线白杨路站-龙阳路站区间隧道长距离侧向穿越龙阳路站出入场线地下连续墙的工程特点,通过建立有限元模型分析了土仓压力及同步注浆压力对盾构机受力平衡的影响.通过分析发现,地下连续墙的存在将使盾构机两侧受到不平衡力的作用.最后通过盾构受力平衡分析,该不平衡力可以通过调整盾构左、右两组推力油缸的推力的措施来解决.
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| 关 键 词： | 隧道轴线控制 侧穿 盾构隧道 Plaxis软件 |
Study on Control of Tunnel Central Line of Shield Tunnel Passing alongside Underground Diaphragm Wall in Soft Soil Stratum |
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| SUN Yu-yong,ZHOU Shun-hua. Study on Control of Tunnel Central Line of Shield Tunnel Passing alongside Underground Diaphragm Wall in Soft Soil Stratum[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(1) |
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| Authors: | SUN Yu-yong ZHOU Shun-hua |
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| Affiliation: | Key Laboratory of Road and Traffic Engineering of Ministry of Education;Tongji University;Shanghai 201804;China |
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| Abstract: | The stress field of soil around the building is changed due to the existence of the building,by which the control of tunnel central line near the building is inevitably affected.Considering the characteristics of tunnel section of Shanghai Metro line 7 between Baiyang station and Longyang station passing alongside the underground diaphragm wall,two FEM models are created.Through the model analysis,the impact of support pressure and grouting pressure to the balance of shield tunnel is analyzed.Analysis resul... |
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| Keywords: | control of tunnel central line forces passing alongside shield tunnel Plaxis |
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