{"title":"Experimental and finite element analysis of slope stability treated by lime milk (case of El Amir Abdelkader embankment)","authors":"Zeyneb Belabbaci, A. Berrabah, D. Bouri","doi":"10.2478/mme-2021-0011","DOIUrl":null,"url":null,"abstract":"Abstract This paper presents an experimental stabilization approach of the landslide that threatens a slope located near the city of El Amir Abdelkader, Ain Temouchent, Algeria. Stabilization is assured by the addition of lime milk, and then a numerical validation of the results with respect to the safety coefficient before and after treatment was performed by “Plaxis” software. Experimental results show that the stabilization by lime milk improves compaction parameters, swelling and shear strength, particularly the cohesion and friction angle, the latter permitting appreciation of the sliding surface on which it is necessary to base the calculation of the safety coefficient before and after treatment. Numerical results indicate that the factor of safety increases with the improvement of the mechanical characteristics c and ϕ, which are improved by increasing lime milk percentage. The numerical validation using “Plaxis” finite element code gives results that are in perfect agreement with the experimental ones, indicating that this software is a good tool for slope stability study.","PeriodicalId":53557,"journal":{"name":"Mechanics and Mechanical Engineering","volume":"25 1","pages":"77 - 83"},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Mechanics and Mechanical Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2478/mme-2021-0011","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 1
Abstract
Abstract This paper presents an experimental stabilization approach of the landslide that threatens a slope located near the city of El Amir Abdelkader, Ain Temouchent, Algeria. Stabilization is assured by the addition of lime milk, and then a numerical validation of the results with respect to the safety coefficient before and after treatment was performed by “Plaxis” software. Experimental results show that the stabilization by lime milk improves compaction parameters, swelling and shear strength, particularly the cohesion and friction angle, the latter permitting appreciation of the sliding surface on which it is necessary to base the calculation of the safety coefficient before and after treatment. Numerical results indicate that the factor of safety increases with the improvement of the mechanical characteristics c and ϕ, which are improved by increasing lime milk percentage. The numerical validation using “Plaxis” finite element code gives results that are in perfect agreement with the experimental ones, indicating that this software is a good tool for slope stability study.
摘要本文介绍了一种滑坡的实验稳定方法,该滑坡威胁着阿尔及利亚艾因特穆钦特市El Amir Abdelkader市附近的一个斜坡。通过添加石灰乳来确保稳定性,然后通过“Plaxis”软件对处理前后的安全系数结果进行数值验证。实验结果表明,石灰乳的稳定作用提高了压实参数、膨胀和剪切强度,特别是内聚力和摩擦角,后者允许对滑动表面进行评估,在处理前后有必要计算安全系数。数值结果表明,安全系数随着机械特性c和ξ的改善而增加,而机械特性c、ξ通过增加石灰乳百分比而得到改善。利用“Plaxis”有限元程序进行数值验证,结果与实验结果完全一致,表明该软件是边坡稳定性研究的良好工具。