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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Bearing Capacity of Strip Footing on Clay Slope Reinforced with Stone Columns
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Bearing Capacity of Strip Footing on Clay Slope Reinforced with Stone Columns

机译：石柱加固黏土边坡上条形基础的承载力

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摘要

Bearing capacity is very important in geotechnical engineering, which depends on factors such as footing shape, stress distribution under footing and failure mechanism of soil. One of the methods for improving the bearing capacity and reducing settlement in soft and fine soils is adding column like elements to soil which called stone column. In this research using model tests and numerical modeling, the effect of existence and location of stone column on bearing capacity of strip footing near soft clay slope is studied. In fact, reinforced and unreinforced stone columns in different locations are added to slope and the effect of them on load-settlement behavior of strip footing rested on top of the slope was investigated. Group stone columns are also studied, and efficiency of them is investigated. Also numerical modeling is carried out with Plaxis 3D Foundation program, and finally the results of experimental and numerical modeling were compared. Results show that reinforcing clay slope with stone column in all situations leads to increase in bearing capacity of strip footing. Moreover, reinforcing stone columns with encasing cause better performance of stone columns and increase in bearing capacity of footing compared with the same unreinforced stone columns. The maximum effect of stone column on bearing capacity of strip footing occurs when the stone column is located beneath the footing, and with increase in distance between the column and footing, the bearing capacity of footing is decreased.
机译：承载力在岩土工程中非常重要，它取决于桩基形状，桩基下的应力分布和土壤破坏机理等因素。改善软土和细土中的承载力和减少沉降的方法之一是在土壤中添加柱状元素，即石柱。在这项研究中，通过模型测试和数值模拟，研究了石柱的存在和位置对软黏土边坡带状地基承载力的影响。实际上，在不同的位置上增加了加固和未加固的石柱，并研究了它们对位于斜坡顶部的条形基础的荷载沉降行为的影响。还研究了组石柱，并研究了它们的效率。还使用Plaxis 3D Foundation程序进行了数值建模，最后比较了实验和数值建模的结果。结果表明，在任何情况下用石柱加固粘土坡度都会导致带状基础的承载力增加。此外，与相同的未加固石柱相比，带有围护的石柱会导致石柱更好的性能并增加立脚的承载力。当石柱位于基础下方时，石柱对带状基础承载力的最大影响会发生，并且随着柱与基础之间距离的增加，基础承载力会降低。

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