| 基于深基坑复合土钉支护的弹塑性三维有限元分析 |
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| 引用本文： | 马生贵.基于深基坑复合土钉支护的弹塑性三维有限元分析[J].甘肃科学学报,2007,19(3):131-135. |
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| 作者姓名： | 马生贵 |
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| 作者单位： | 甘肃省引大入秦工程管理局,甘肃,兰州,730000 |
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| 摘 要： | 应用非线性有限元软件ADINA对复合土钉支护的变形性能进行分析.阐述了复合土钉支护有限元数值模拟的特点和作用机理,考虑了土体的弹塑性特性、土钉与土体、锚杆与土体的相互作用以及分步施工过程,并结合具体工程实例进行了数值模拟,结果表明:复合土钉在土钉墙复合土体中具有分担作用、应力传递与扩散作用、变形的约束作用.分析结果既为工程设计施工提供了可靠数据,也验证了ADINA软件在土工分析方面的优势.
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| 关 键 词： | 深基坑 复合土钉支护 ADINA 三维有限元 变形分析 |
| 文章编号： | 1004-0366（2007）03-131-05 |
| 收稿时间： | 2006-10-10 |
| 修稿时间： | 2006-10-10 |
An Elastoplastic Numerical Analysis of Composite Soil-Nailed Support System Based on Deep Excavation by Using the 3-D Finite Element Method |
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| MA Sheng-gui.An Elastoplastic Numerical Analysis of Composite Soil-Nailed Support System Based on Deep Excavation by Using the 3-D Finite Element Method[J].Journal of Gansu Sciences,2007,19(3):131-135. |
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| Authors: | MA Sheng-gui |
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| Institution: | Gansu Administrative Bureau of Ying Da Irrigation Works, Lanzhou 730000, China |
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| Abstract: | An Analysis is made of the properties of transformation in composite soil-nailed support system by using a software of nonlinear finite element ADINA. The characteristics of numerical simulation and its mechanism are ennunciated; the elastoplastic feature of the Soil body, interaction between soil nails and the soil body and the construction, by steps are also considered with concrete engineering example. The result shows that the composite soil nails have the functions of sharing the burdea in the wall and playing a role in stress transfer, proliferation and transformed stipulation. The ananlsis has provided reliable data for the engineering and also verified the advantages of the software of ADINA. |
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| Keywords: | deep excavation composite soil nailed support system ADINA three dimensional finite element deformation analysis |
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