Experimental and Numerical Modeling of Nano-clay Effect on Seepage Rate in Earth Dams

Taghvaei, Poorya; Mousavi, Seyed Farhad; Shahnazari, Ali; Karami, Hojat; Shoshpash, Issa

doi:10.1007/s40891-018-0152-8

Cited by 16 publications

(4 citation statements)

References 16 publications

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“…Nanoclays are clay crystallites connected by stacking their layers (Guo et al., 2018). Montmorillonite (MMT) nanoclay is consisted of thick aluminosilicate layers surface‐substituted with metal and has 10 µm‐sized multilayer stacks (Taghvaei et al., 2021). The stacks are scattered in a polymer matrix as fillers/additives and increase mechanical strength, flame resistance, and thickness (Irshidat & Al‐Saleh, 2018).…”

Section: Introductionmentioning

confidence: 99%

The fabrication of films based on polymer and containing nanoclay, sodium diacetate, and tert‐butyl hydroquinone for packaging rainbow trout

Amiri

Jahantigh

Sardari

et al. 2023

Journal of Food Science

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This study investigates the fabrication of films based on a polymer containing nanoclay, sodium diacetate (SDA), and tert‐butyl hydroquinone (TBHQ) for packaging rainbow trout fillets. The films were prepared by the addition of 2% SDA (SDA film), 2% TBHQ (TBHQ film), and a combination of both (1% SDA + 1% TBHQ) into polyethylene polymer (93.00%) and montmorillonite nanoclay (5.00%). A film lack of nanoclay, SDA, and TBHQ was prepared and considered a control film. A film was also prepared by the addition of 95 g polyethylene + 5 g nanoclay (Nanoclay). Morphological properties of the films were investigated by a scanning electron microscope (SEM). In vitro antioxidant properties and antibacterial activities of the films and their effects as the coating on fish samples were evaluated against Listeria monocytogenes, Salmonella typhimurium, and Escherichia coli. The effects of films on oxidative stability, antibacterial activity, pH, total volatile basic nitrogen (TVBN), and total viable count (TVC) of fish samples were assessed. The SEM results showed the homogenous dispersion of SDA and TBHQ into films. The SDA, TBHQ, and ST films showed antibacterial activity against L. monocytogenes, S. typhimurium, and E. coli compared with the control film as the coating and under in vitro conditions (p < 0.05). The TBHQ and ST films exhibited higher antioxidant activity and prevented the oxidation as the coating. The films prepared from the SDA, TBHQ, and ST prevented an increase in TVC and TVBN (p < 0.05). The ST films can prevent spoilage in fish samples and can be utilized in the food industry. Practical Application We successfully prepared films with the help of nanoclay, sodium diacetate (SDA), and tert‐butyl hydroquinone (TBHQ) on polyethylene for packaging fish fillets. Films containing SDA, TBHQ, and nanoclay showed antibacterial activity and prevented spoilage. The films can be used for packaging fish fillets.

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Section: Introductionmentioning

confidence: 99%

The fabrication of films based on polymer and containing nanoclay, sodium diacetate, and tert‐butyl hydroquinone for packaging rainbow trout

Amiri

Jahantigh

Sardari

et al. 2023

Journal of Food Science

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“…Zewdu [19], calculated the amount of the seepage occurring in the Koga earth-ll dam body and foundation using the nite element-based PLAXIS 2D so ware. Taghvaei et al [20] prepared numerical modeling of earth dam in diff erent clay-sand compositions using SEEP/W so ware and validated it with experimental results. In their paper, Doaa and Molla [21] aimed to determine the eff ect of the existence of the sheet pile as well as its height and location on the total seepage discharge and velocities through the dam's cross-section.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of the seepage problem in the dam body and foundation based on the Galerkin’s approach

Aslan

Temel

2022

European Mechanical Science

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In this study, the 2D steady-state seepage analysis of the dam body and its base is investigated using the finite element method based on the Galerkin’s approach. The body and foundation soil are considered as homogeneous isotropic and anisotropic materials and the effects of horizontal drainage length and cutoff wall on seepage are investigated. The differential equation governing the response of water in the soil is obtained with the help of Darcy's law and continuity equations. A program has been prepared in Fortran programming language to find the hydraulic load, pressure values and phreatic line pressure values at the points inside the dam body and the quantity of seepage on the bottom of dam. It has been shown that the obtained values are in good agreement by comparing them with the results of existing studies in the literature.

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“…Nano-materials is the superfine materials that it has the special structural features such as small size, size effect, quantum effect and interface effect, and it is applied to many areas [5][6][7]. The strength and deformation of the soil mixed nanomaterial are studied by some scholars [8][9][10][11][12][13]. Taha M. and Taha O.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dynamic Properties of Nano-MgO-Modified Silty Clay

Gao

Luo

Ren

et al. 2020

Int. J. of Geosynth. and Ground Eng.

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To study the dynamic properties of nano-MgO-modified soil, the contents of nano-MgO which were 0%, 1%, 2%, 3%, 4% and 5% of the dry weight for soil were added into the soil. The water content of soil samples were 16% and 22%. The variation of shear modulus and damping ratio of soil was analyzed through the resonant-column test of the modified soil. The results show that with the increasing of shear strain, the shear modulus of soil decreases and the damping ratio of soil increases, the shear modulus for nano-MgO-modified soil reaches the maximum when the content of nano-MgO is 5%. The maximum shear modulus of soil with water content of 22% is smaller than that of soil with water content 16% under the same confining pressure, the shear modulus of soil increases linearly with the increasing of nano-MgO content. The reinforcement mechanism of the nano-MgO-modified soil was analyzed such as pore filling effect of nano-MgO, effect of water content, effect of vibration compaction, interaction between a nano-MgO group and a soil particle, interaction between several nano-MgO groups and soil particles.

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Experimental and Numerical Modeling of Nano-clay Effect on Seepage Rate in Earth Dams

Cited by 16 publications

References 16 publications

The fabrication of films based on polymer and containing nanoclay, sodium diacetate, and tert‐butyl hydroquinone for packaging rainbow trout

The fabrication of films based on polymer and containing nanoclay, sodium diacetate, and tert‐butyl hydroquinone for packaging rainbow trout

Finite element analysis of the seepage problem in the dam body and foundation based on the Galerkin’s approach

Experimental Study on Dynamic Properties of Nano-MgO-Modified Silty Clay

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