| 大型环形支撑在深厚长江漫滩相软土中的应用 |
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| 引用本文： | 瞿婧晶,李俊才.大型环形支撑在深厚长江漫滩相软土中的应用[J].建筑科学,2012,28(3):86-90. |
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| 作者姓名： | 瞿婧晶 李俊才 |
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| 作者单位： | 1. 成都理工大学环境与土木工程学院,成都,610059
2. 南京工业大学交通学院,南京,210009 |
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| 摘 要： | 南京某深基坑支护工程场地面积较大,平面形状不规则,开挖深度较深,位于深厚的长江漫滩相软土层中,土质条件差。根据周边环境及开挖深度,采用钻孔灌注桩加一层环形钢筋混凝土支撑、双轴深搅桩止水的支护形式。工程实践与监测资料表明,该支撑形式新颖安全,受力科学合理,支护结构和外侧环境变形小,便于土方开挖和地下结构的施工,值得总结和推广应用。
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| 关 键 词： | 深基坑 深厚软土 钻孔灌注桩 环形支撑 基坑监测 |
Application of a Large Annular Shape Support in Deep Yangtze River Back Swamp Soft Soil |
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| QU Jing-jing
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LI Jun-cai.Application of a Large Annular Shape Support in Deep Yangtze River Back Swamp Soft Soil[J].Building Science,2012,28(3):86-90. |
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| Authors: | QU Jing-jing LI Jun-cai |
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| Affiliation: | QU Jing-jing(College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China) LI Jun-cai(College of Transportation Science and Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | The area of deep excavation in Nanjing is larger,the plane shape is irregular and the excavation is deeper.It locates in Yangtze River back swamp soft soil,the soil condition is poor.According to the perimeter environment and the depth of the circumstances of the excavation,the bored piles,an annular shape reinforced concrete support and the dual axis strength of DCM are adopted.Analysis of the engineering practice and the monitoring data shows that the annular shape support design is novel and secure,and the supporting scheme design of the excavation is science and reasonable.The supporting structure and the outer environment of small deformation are convenient for earthwork excavation and underground structure construction,which is worthy to sum up and popularize application. |
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| Keywords: | deep excavation deep soft soil bored pile annular shape support excavation monitoring |
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