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Stability of Gypseous Soil Slopes Using the Upper Bound Theorem of Limit Analysis
The upper bound theorem of limit analysis is utilized to study the stability of gypseous soil slopes. A simplified equation is proposed to estimate the effect of gypsum content on the strength parameters of saturated soil. This equation is found to be less conservative than the equation proposed by other researchers in the literature, hence, it may lead to a more economical design. The modified strength parameters were implemented by instability analysis software called OptumGE assuming dry and saturated soil with different gypsum contents and different slope inclinations. The effect of gypsum content on the stability of gentle slope is found to be more damaging than that for steep slopes. For saturated gentle soil slopes, the reduction in factor of safety can reach up to 90 or 70% depending on the equation used to estimate the soil strength parameters. The aim of the study to implement the upper bound theorem to analyze gypseous slope stability. Results are formed as charts that can be used by practitioners to quickly estimate the reduction in factor of safety due to the presence of gypsum.
Stability of Gypseous Soil Slopes Using the Upper Bound Theorem of Limit Analysis
The upper bound theorem of limit analysis is utilized to study the stability of gypseous soil slopes. A simplified equation is proposed to estimate the effect of gypsum content on the strength parameters of saturated soil. This equation is found to be less conservative than the equation proposed by other researchers in the literature, hence, it may lead to a more economical design. The modified strength parameters were implemented by instability analysis software called OptumGE assuming dry and saturated soil with different gypsum contents and different slope inclinations. The effect of gypsum content on the stability of gentle slope is found to be more damaging than that for steep slopes. For saturated gentle soil slopes, the reduction in factor of safety can reach up to 90 or 70% depending on the equation used to estimate the soil strength parameters. The aim of the study to implement the upper bound theorem to analyze gypseous slope stability. Results are formed as charts that can be used by practitioners to quickly estimate the reduction in factor of safety due to the presence of gypsum.
Stability of Gypseous Soil Slopes Using the Upper Bound Theorem of Limit Analysis
Lecture Notes in Civil Engineering
Karkush, Mahdi O. (editor) / Choudhury, Deepankar (editor) / Abd, Akram H. (author) / Abdullah, Manar M. (author)
Modern Applications of Geotechnical Engineering and Construction ; Chapter: 17 ; 197-203
2020-12-22
7 pages
Article/Chapter (Book)
Electronic Resource
English
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