| 盾构隧道施工引起地面最大沉降探索 |
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| 引用本文： | 魏新江,张金菊,张世民. 盾构隧道施工引起地面最大沉降探索[J]. 岩土力学, 2008, 29(2): 445-448 |
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| 作者姓名： | 魏新江 张金菊 张世民 |
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| 作者单位： | 1. 浙江大学 岩土工程研究所，杭州 310027；2. 浙江大学 城市学院，杭州 310015 |
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| 摘 要： | 基于弹性半空间的Boussinesq解，建立在半径为a的圆平面上作用一锥形扰动荷载的简化模型，推导出盾构隧道施工阶段引起的地面沉降最大值 的简化公式，并对式中两个重要参数进行探讨。结合实例，比较了Peck法，实测值与文中公式三者的结果，认为在不考虑土体蠕变时其解析解与实测值较为接近。
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| 关 键 词： | 盾构隧道 横向最大沉降值 |
| 文章编号： | 1000-7598-（2008）02-445-04 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-05-08 |
Grope for shield tunnel construction induced ground maximal settlement |
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| WEI Xin-jiang,ZHANG Jin-ju,ZHANG Shi-min. Grope for shield tunnel construction induced ground maximal settlement[J]. Rock and Soil Mechanics, 2008, 29(2): 445-448 |
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| Authors: | WEI Xin-jiang ZHANG Jin-ju ZHANG Shi-min |
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| Affiliation: | 1. Institute of Geotechnical Engineering, Zhejiang University,Hangzhou 310027, China；2. City College of Zhejiang University, Hangzhou 310015, China |
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| Abstract: | Based on the solution of Boussinesq, a model is established; and the model assumes that a cone-shaped load acts on the circinal plane while its radius of a. Then a shield tunnel ground maximum settlement formula during constructions, is derived. The two important parameters are probed into. Then the three results of the Peck method, the formula in this paper and the true value are compared by a real example. Without considering creep of soil, the formula in this paper is closest to the true value. |
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| Keywords: | shield tunnel maximum settlement |
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