| 城市地铁施工过程中地表点的动态下沉描述 |
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| 引用本文： | 沈永芳,宋计棉,李胡生,张延猛.城市地铁施工过程中地表点的动态下沉描述[J].上海应用技术学院学报,2007,7(4):256-260. |
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| 作者姓名： | 沈永芳 宋计棉 李胡生 张延猛 |
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| 作者单位： | 上海交通大学海洋科学研究院 上海200231(沈永芳，张延猛)，上海交通大学工业设计系 上海200231(宋计棉)，上海应用技术学院土木建筑与安全工程学院 上海200235(李胡生) |
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| 摘 要： | 阐述了城市地铁施工过程中,地表沉陷与变形的一般现象,探讨了地表沉降指数函数计算公式。从地铁施工变形监测的实际工程出发,通过指数函数建立了单点地表沉降过程经验模型。在求解参数初值时,将非线性的曲线方程进行了对数线性化,并通过迭代法计算了参数的精确值。
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| 关 键 词： | 地铁施工 地表沉降 沉陷预测 |
| 文章编号： | 1671-7333（2007）04-0256-05 |
| 收稿时间： | 2007-09-06 |
| 修稿时间： | 2007年9月6日 |
Dynamic Subsidence of the Surface due to Subway Construction in City proper |
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| SHEN Yong-fang,SONG Ji-mian,LI Hu-sheng,ZHANG Yan-meng.Dynamic Subsidence of the Surface due to Subway Construction in City proper[J].Journal of Shanghai Institute of Technology: Natural Science,2007,7(4):256-260. |
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| Authors: | SHEN Yong-fang SONG Ji-mian LI Hu-sheng ZHANG Yan-meng |
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| Affiliation: | 1. Underwater Technology Institute, Shanghai J iao Tong University,Shanghai 200231, China; 2. Department of Industrial Design, Shanghai Jiao Tong University,Shanghai 200231 ,China; 3. School of Civil Construction and Safety Engineering, Shanghai Institute of Technology,Shanghai 200235, China |
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| Abstract: | In this paper,the general phenomenon about subsidence and deformations of surface in subway construction is illustrated.To express the surface subsidence,an exponential function is introduced by the authors.With the function and the data surveyed,a dynamic subsidence equation related to the surface deformations is provided as the actual example.In order to obtain the numerical values of the parameters involved in the function,the authors employ the logarithm of the exponential function for the calculation of the initial values. |
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| Keywords: | subway construction surface subsidence prediction of subsidence |
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