| 城市建设对地面沉降影响的原因分析 |
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| 引用本文： | 介玉新,高燕,李广信.城市建设对地面沉降影响的原因分析[J].岩土工程技术,2007,21(2):78-82. |
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| 作者姓名： | 介玉新 高燕 李广信 |
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| 作者单位： | 清华大学水利水电工程系,北京,100084;水沙科学与水利水电工程国家重点实验室(清华大学),北京,100084 |
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| 摘 要： | 在地下水开采引起的地面沉降得到初步控制之后,沿海地区城市工程建设引起的地面沉降就显得日益突出。人们发现上海城区建筑规模及其增长速度直接导致工程性地面沉降同步增长。建筑密度越大,建筑容积率越高,地面沉降越显著。分析了一定间距的荷载共同作用的宏观效应,提出了等效影响荷载的概念,进而揭示了城市工程建筑与大面积等效影响荷载的关系。据此对文献中观测得到的上海城市建设与地面沉降的关系进行了较好的解释。有关分析对软土地基上城市建设规划具有一定参考意义。
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| 关 键 词： | 沉降 容积率 等效影响荷载 工程性沉降 城市规划 |
| 文章编号： | 1007-2993(2007)02-0078-05 |
| 修稿时间： | 2007年1月15日 |
Analysis on the Land Subsidence Induced by City Construction |
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| Jie Yuxin,Gao Yan,Li Guangxin.Analysis on the Land Subsidence Induced by City Construction[J].Geotechnical Engineering Technique,2007,21(2):78-82. |
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| Authors: | Jie Yuxin Gao Yan Li Guangxin |
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| Abstract: | After land subsidence by exploiting ground water being controlled,the subsidence induced by city construction became more and more obvious.It is found that the engineering-related subsidence increased with the construction scale and speed.Bigger building density and bigger volumetric fraction caused bigger subsidence.The paper involved analyzing the macro effect of loads distributed with certain space,proposing the concept of equivalent effecting load,discussing the relationship between city building and large-scale equivalent effecting load,and interpreting the construction-induced land subsidence in shanghai.It is thought to be helpful for urban planning in cities with soft subsoil. |
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| Keywords: | subsidence building volumetric fraction equivalent effecting load engineering-related subsidence urban planning |
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