| 软土地区风井风口施工对下部既有越江隧道影响的数值分析 |
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| 引用本文： | 张正,陈卫平,叶国强.软土地区风井风口施工对下部既有越江隧道影响的数值分析[J].地震学刊,2010(4):381-386. |
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| 作者姓名： | 张正 陈卫平 叶国强 |
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| 作者单位： | [1]上海建工（集团）总公司技术中心,上海200083 [2]上海市基础工程有限公司,上海200002 |
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| 摘 要： | 上海在区间隧道上方建造风井在国内尚属首例。随着人们绿色环保意识的增强，隧道通风井将会越来越多地修建在远离都市核心区的区间隧道的上方，因而研究风口基坑施工引起区间隧道位移的变化将会是岩土工程领域的又一崭新问题。本文结合上海人民路隧道风井风口基坑工程，针对是否降低承压水水位2种工况，采用MIDAS—GTS软件，对既有盾构隧道隆起进行数值模拟，从理论上量化在这2种工况下隧道的变形程度，探讨该方法的可行性，为最终选择何种工况施工提供了理论指导。实际的监测数据验证了本文方法的可行性，为今后的相关工程建设提供了一个成功范例。
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| 关 键 词： | 越江隧道 风井风口 基坑开挖 数值模拟 MIDAS—GTS软件 |
Numerical Analysis of the Influence of Ventilation Shaft Construction on Existing Cross-river Tunnel in Soft Soils |
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| ZHANG Zheng,CHEN Wei-ping,YE Guo-qiang.Numerical Analysis of the Influence of Ventilation Shaft Construction on Existing Cross-river Tunnel in Soft Soils[J].Journal of Seismology,2010(4):381-386. |
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| Authors: | ZHANG Zheng CHEN Wei-ping YE Guo-qiang |
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| Institution: | 1. Shanghai Construction Group Technology Center, Shanghai 200083, China 2. Shanghai Foundation Engineering Co. , Ltd. , Shanghai 200002, China) |
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| Abstract: | Nowadays, ventilation shaft construction in people＇s awareness of environmental protection, away ventilation shafts would be built on the running tunnel. the running tunnel is the first case in China, As from the urban core area, more and more tunnel However, study on the tunnel displacement change due to ventilation shaft foundation construction is another new problem of geotechnieal engineering area. Combined with ventilation shaft foundation of the Renmin Road tunnel, according to two working conditions, i.e. whether reducing pressure water or not, using MIDAS-GES software to analyze the running tunnel displacement, quantify the deformation degree of two conditions theoretically, discuss the feasibility of the method, and provide theoretical guidance to final choosing. The monitoring data also prove the feasibility of the method which provides an evidence for the same project construction. |
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| Keywords: | cross-river tunnel ventilation shaft excavation numerical simulation MIDAS-GIS software |
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