| 比奥模型在井点降水引起地面变形中的应用 |
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| 引用本文： | 陈鹏,李晓昭. 比奥模型在井点降水引起地面变形中的应用[J]. 地下空间与工程学报, 2006, 2(1): 137-140 |
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| 作者姓名： | 陈鹏 李晓昭 |
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| 作者单位： | 南京大学地球科学系,江苏,南京,210093;南京大学地球科学系,江苏,南京,210093 |
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| 摘 要： | 井点降水引起的地面变形是工程施工中经常遇到的问题，80年代之后这一问题开始受到重视，由于沉降的机理复杂，目前这一问题仍然没有很好的解决。作者在分析了降水引起地面变形的机理的基础之上，即把地面变形归结于有效应力的增加，动水压力的作用，以及井点的真空作用，提出采用比奥模型进行预测，并结合南京地铁某基坑降水工程，从而为其合理的降水方案提供了依据。
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| 关 键 词： | 井点降水 地面变形 比奥模型 |
| 文章编号： | 1673-0836（2006）01-0137-04 |
| 收稿时间： | 2005-05-22 |
| 修稿时间： | 2005-05-22 |
Application of Biot Model In Well-point Dewatering Causing Ground Movement |
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| CHEN Peng,LI Xiao-zhao. Application of Biot Model In Well-point Dewatering Causing Ground Movement[J]. Chinese Journal of Underground Space and Engineering, 2006, 2(1): 137-140 |
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| Authors: | CHEN Peng LI Xiao-zhao |
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| Affiliation: | Earth Science Department of Nanjing University, Nanjing 210093, P.R.china |
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| Abstract: | Well-point dewatering will cause ground movement,after 1980s,many scientists pay attention to this problem.But because of the complexity of the mechanism of settlement,it didn't well be solved.In this paper,The author analysed the reason for well-point dewatering causing ground movement,that is it is caused by efficient stress increasing,hydraulic stress increasing and the vacuum-impact of the well-poit;the Biot model was used to calculate it,and finally a reasonable dewatering plan was given. |
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| Keywords: | well-point dewatering ground movement Biot Model |
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