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Liquefaction Analysis of Earth Embankment Dam Structure
The design and construction of earth embankment structures become complex because of variations in the foundation soil conditions and available construction materials used as fill material. Earth embankment must resist the horizontal loads due to earth and water pressures from storage containments or reservoirs. The surface seepage forces are must also be considered if the soil structure is submerged under the water table. The design criteria of the dam require overall stability and safety. Therefore, it is necessary to analyse the liquefaction susceptibility of the embankment structure before recommending mitigation techniques. The present study used an advanced constitutive model called UBC 3D, which was developed specifically to analyse the liquefaction of sands. This model is inbuilt in finite element software called MIDAS GT NX. The nonlinear UBC 3D sand model has incorporated the fully coupled effects. The numerical results show that deformations are greatly affected by changes in the dam body and foundation layer material, including upstream water levels. Hence, the present study results might help make the liquefaction-resistant earth embankment structure located on sites prone to liquefaction.
Liquefaction Analysis of Earth Embankment Dam Structure
The design and construction of earth embankment structures become complex because of variations in the foundation soil conditions and available construction materials used as fill material. Earth embankment must resist the horizontal loads due to earth and water pressures from storage containments or reservoirs. The surface seepage forces are must also be considered if the soil structure is submerged under the water table. The design criteria of the dam require overall stability and safety. Therefore, it is necessary to analyse the liquefaction susceptibility of the embankment structure before recommending mitigation techniques. The present study used an advanced constitutive model called UBC 3D, which was developed specifically to analyse the liquefaction of sands. This model is inbuilt in finite element software called MIDAS GT NX. The nonlinear UBC 3D sand model has incorporated the fully coupled effects. The numerical results show that deformations are greatly affected by changes in the dam body and foundation layer material, including upstream water levels. Hence, the present study results might help make the liquefaction-resistant earth embankment structure located on sites prone to liquefaction.
Liquefaction Analysis of Earth Embankment Dam Structure
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (editor) / Ayothiraman, R. (editor) / Kolathayar, Sreevalsa (editor) / Prabhakar, Neetha (author) / Rangaswamy, K. (author)
Indian Geotechnical Conference ; 2021 ; Trichy, India
Soil Dynamics, Earthquake and Computational Geotechnical Engineering ; Chapter: 49 ; 579-586
2023-01-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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