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首页> 外文会议>International Conference on Soil Mechanics and Geotechnical Engineering(16 ICSMGE) vol.2 >Analysis of an excavation with soil nailing using embedded finite elements and advanced constitutive models
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Analysis of an excavation with soil nailing using embedded finite elements and advanced constitutive models

机译：利用嵌入式有限元和先进本构模型分析土壤钉的挖掘

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摘要

The global safety factor of a slope may be enhanced either by the introduction of structural elements, such as anchors and nails, or by the construction of deep sub-horizontal drains. The finite element analysis of such inclusions, mainly for three-dimensional conditions, is extremely difficult if new meshes are generated for each configuration of inclusions under investigation. However, it is possible to use a single background mesh to investigate different inclusion configurations. There are different ways to achieve this objective and a promising technique is the so-called "embedded" approach. This technique was introduced in a finite element program called ALLFINE. In this paper, the program is applied to analyze the case of an excavation of 6 meters in clayey ground. The excavation design considered the use of passive nail inclusions for stabilization. The problem is analyzed using conventional (Cam clay) and advanced (subloading t_(ij)) constitutive models. The results demonstrate the applicability and efficiency of the proposed methodology.
机译：斜坡的全球安全系数可以通过引入结构元素，例如锚和指甲，或者通过构造深层水平排水管来增强。如果在调查下的每个夹杂物的每个配置产生新网格，则这种夹杂物的有限元分析主要是针对三维条件的极其困难。然而，可以使用单个背景网格来调查不同的包含配置。有不同的方法来实现这一目标，并且有希望的技术是所谓的“嵌入式”方法。在称为Allfine的有限元程序中引入了该技术。在本文中，该计划适用于分析粘土地面6米的挖掘的情况。挖掘设计考虑了使用被动指甲夹杂物进行稳定化。使用常规（CAM CLAY）和高级（Subloading T_（IJ））构成型号来分析问题。结果证明了所提出的方法的适用性和效率。

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