| 海积软土地层地铁车站基坑开挖的时空效应研究 |
| Time space Effect Study on Metro Foundation Pit’s Excavation in Sea Filling Area |
| 投稿时间：2012-07-14 |
| 中文关键词: |
| 英文关键词:sea filling time space effect numerical analysis |
| 基金项目: |
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| 中文摘要: |
| 深圳地铁5号线前海湾站位于填海区域，场地分布较厚的海积淤泥，具触变性、流变性和不均匀性，深基坑施工时空效应明显。以前海湾站施工为例，根据实际工程情况，选择开挖及支撑模型，分析基坑开挖引起的地层卸载变形规律以及基坑围护结构的变形特征，通过三维数值计算,对前海湾站深基坑的时空效应进行分析和评价，提出前海湾站软土深基坑开挖作业工序的优化对策，可为类似的海积软土地层深基坑提供借鉴。 |
| 英文摘要: |
| Qian Haiwan Station of Shenzhen Metro Line 5 sits in the sea filling area where exists thick marine silt, which possesses properties of thixotropicity, rheologicality and inhomogeneity, with significant time space effect for deep foundation pit construction. Based on the construction of Qian Haiwan station, according to the actual practical condition, the excavation and supporting model is selected to analyze the formation unloading deformation rule due to excavation and the retaining of the foundation pit. Through numerical analysis, the deep foundation time space effect of Qian Haiwan station is analyzed and commented. Then measures are suggested for optimizing operation of seal filling excavation work at Qian Haiwan foundation, which could be referenced for similar metro construction. |
| 刘少魏.海积软土地层地铁车站基坑开挖的时空效应研究[J].石家庄铁道大学学报(自然科学版),2013,(1):23-27. |
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