Analysis of Load Carrying Capacity of Strip Footing Resting on Geogrid Reinforced Fly-Ash Over an Earthen Slope Using Plaxis2D

Journal of the University of Shanghai for Science and Technology Pub Date : 2021-02-08 DOI:10.51201/JUSST12601

Abdulmohsen Salem Alajmi

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Abstract

The current study deals with the use of material waste such as fly ash as a fill material or replaced layer placed over an earthen slope and strip footing is placed over the slope in order to explore the benefits of using geogrid sheets to strengthen the fly ash layer and to investigate its effects on the load carrying capacity. Using Program PLAXIS-2D v8.2, the fly-ash sheet is positioned over an earthen slope with slope inclination of 3H:2V, and multiple type of models were investigated, to study the integration impact of geogrid-reinforcement layers on load carrying ability. For optimal improvement in load carrying ability, models have been tested to evaluate the best location, length and configuration of geogrid layers and top fly-ash layer depth. In order to evaluate the effect of one parameter in each sequence the other factors were kept constant. The sequence of findings was illustrated using PLAXIS-2D on the strip base in both strengthened and un-reinforced cases. Test findings demonstrate that inclusion of geogrid significantly enhances efficiency of slope and footing.

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基于Plaxis2D的粉煤灰加筋土工格栅条形基础承载能力分析

本研究将粉煤灰等废弃物作为填充物或替代层放置在土质边坡上，并在边坡上放置条形基础，以探索使用土工格栅板加固粉煤灰层的好处，并研究其对承载能力的影响。利用PLAXIS-2D v8.2程序，将粉煤灰片材放置在坡度为3H:2V的土质边坡上，并对多种模型进行了研究，研究土工格栅加筋层对土工格栅加筋层整体承载能力的影响。为了最大限度地提高承载能力，对土工格栅层的最佳位置、长度和配置以及顶部粉煤灰层深度进行了模型试验。为了评价每个序列中某一参数的效果，其他因素保持不变。在加固和未加固的情况下，使用PLAXIS-2D在条带基础上显示了结果序列。试验结果表明，土工格栅的加入显著提高了边坡和基础的效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of the University of Shanghai for Science and Technology

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