Perbandingan Hasil Analisa Stabilitas Lereng 2D dan 3D terhadap Jumlah Kebutuhan Perkuatannya

Shoffiana, Nur ‘ Arfiati; Sari, Putu Tantri Kumala; Lastiasih, Yudhi

doi:10.12962/j23373539.v10i2.65353

Cited by 2 publications

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“…Research on the comparison of the amount of geotextile reinforcement required between 2D and 3D has previously been carried out by Shoffiana et al (2021). The results obtained on soils with heterogeneous layers are uncertain because under certain conditions the amount of 2D geotextile reinforcement required is more than 3D and in other conditions, the need for 2D reinforcement is smaller than 3D.…”

Section: D Slope Stability Analysis Resultsmentioning

confidence: 99%

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Comparison of Embankment Reinforcement Requirements with Geotextile on Soft Soil with 2D and 3D Slope Stability Analysis Methods

Shoffiana

Lastiasih²,

Satrya³

2022

Journal of Infrastructure &Amp; Facility Asset Management

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Slope stability analysis is very important in slope design so it can manage and maintain the infrastructure assets. If the slope is unstable, it can damage the infrastructure around the slope. The method commonly used in slope stability analysis is 2D modeling which assumes the length of the landslide area is not limited or continuous. Landslides that occur in the field are limited and not continuous, so 3D modeling is more suitable than 2D modeling. 3D slope stability analysis has been developed by various researchers. Most of the results of previous studies stated that the 3D and 2D factor of safety ratio were more than one for cohesive soils and less than one for non-cohesive soils. This safety factor affects the amount of reinforcement needed. Differences in 2D and 3D safety factors will cause differences in the amount of reinforcement needed. Therefore, this study was conducted to determine the differences in the 2D and 3D slope stability analysis result. Slope stability analysis was carried out using LEM, where the 2D slope stability used the Fellenius method while the 3D slope stability used the Hovland method. Calculate the required reinforcement amount using geotextiles with Tilt = 250 kN/m. The results obtained from this study are the 2D safety factor is smaller than the 3D safety factor. The 3D and 2D safety factor ratios range from 1.09 -1.397. While the amount of reinforcement required in the 3D analysis is less than in the 2D analysis with the ratio of 3D and 2D reinforcement requirements ranging from 0.5 to 0.955 depending on the width and height of the embankment.

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Section: D Slope Stability Analysis Resultsmentioning

confidence: 99%

“…Research on the comparison of the amount of reinforcement needed between 2D and 3D has previously been carried out by Shoffiana et al (2021). The research was conducted using two soil conditions, namely homogeneous soil conditions and heterogeneous subgrade conditions (layered soil).…”

Section: Introductionmentioning

confidence: 99%

Comparison of Embankment Reinforcement Requirements with Geotextile on Soft Soil with 2D and 3D Slope Stability Analysis Methods

Shoffiana

Lastiasih²,

Satrya³

2022

Journal of Infrastructure &Amp; Facility Asset Management

Self Cite

View full text Add to dashboard Cite

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Comparison of safety factor and geosyntetic reinforcement requirement for slope stability using 2-D and 3-D analysis method

2022

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The analysis of landslide slope stability since 1960s is the development of a 2-D structure proposed by various experts, through the 3-D method. Most of these previous studies stated that the ratio of 3-D and 2-D safety factors was more than one for cohesive and less than one for non-cohesive soils. These were because several required slope reinforcements were affected by the safety factors, with the analytical differences of the 2-D and 3-D methods causing a distinction in the requirements. These differences further cause problems by underestimating or overestimating the design. Therefore, this study aims to determine a comparative analysis of 2-D and 3-D slope stability on several required reinforcements. The analyses of the 2-D and 3-D structures were carried out using the LEM proposed by Fellenius and Hovland, respectively. The comparison of the several required reinforcements was also conducted using geotextile with Tult = 200 kN/m. The results showed that the reinforcements required with geotextile between 2-D and 3-D analysis were relatively similar on homogeneous soils. Meanwhile, the geotextile reinforcement needs were different for heterogeneous soils. Under different certain conditions, the need for 2-D reinforcement was greater and lesser than 3-D. In addition, the difference in the reinforcement required for the analysis of these structures was between 1-8 layers of geotextile, depending on soil parameters, slope, and length of the landslide field.

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Perbandingan Hasil Analisa Stabilitas Lereng 2D dan 3D terhadap Jumlah Kebutuhan Perkuatannya

Cited by 2 publications

References 0 publications

Comparison of Embankment Reinforcement Requirements with Geotextile on Soft Soil with 2D and 3D Slope Stability Analysis Methods

Comparison of Embankment Reinforcement Requirements with Geotextile on Soft Soil with 2D and 3D Slope Stability Analysis Methods

Comparison of safety factor and geosyntetic reinforcement requirement for slope stability using 2-D and 3-D analysis method

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