Effect of Homogeneous Earth Dam Hydraulic Conductivity Ratio (K x /K y ) with Horizontal Drain on Seepage

Salmasi, Farzin; Mansuri, Behnam

doi:10.1007/s40098-013-0087-x

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…erefore, it is necessary to numerically simulate and monitor the dam deformation to see if it is in a safe range. Among many dam types, Earth dams are one of the oldest dam types in the world [2], among which homogeneous Earth dams are again the most economical and practical Earth dams. Many scholars have conducted corresponding studies on the deformation of homogeneous Earth dams [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Study of the Computational Parameters for the Deformation of Homogeneous Earth Dams

Sun

Shen

et al. 2021

Mathematical Problems in Engineering

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The deformation of dams has always been the focus of dam safety research. To more accurately study the effect of the Duncan–Chang model on the deformation of homogeneous Earth dams, this paper simulates the displacement variation of a homogeneous Earth dam through the finite element method based on the Duncan–Chang E-B model. The sensitivity of the Duncan–Chang E-B model parameters and the dam material density on the displacement of a homogeneous earthen dam in Gansu Province, China, were investigated using single-factor and multifactor analysis methods. The results show that the displacement variation of the dam during the completion and operation periods is consistent with the general rule for Earth and rock dams; the three parameters R f , φ 0 , and Δ φ are more sensitive to dam deformation; and the three parameters m , n , and K are less sensitive to dam deformation.

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Section: Introductionmentioning

confidence: 99%

Sensitivity Study of the Computational Parameters for the Deformation of Homogeneous Earth Dams

Sun

Shen

et al. 2021

Mathematical Problems in Engineering

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“…In addition, hydraulic conductivity ratio (K x /K y ) has critical effect on seepage problems. For example, Salmasi and Mansuri (2014) investigated the effect of homogeneous earth dam hydraulic conductivity ratio with horizontal drain on seepage.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements

Asl

Salmasi

Arvanaghi

2020

Engineering Applications of Computational Fluid Mechanics

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In this study, a numerical simulation is applied to investigate the effective factors on the seepage from the earthen channels. To authenticate the information at hand, some of the earthen channels in the Zayandeh-Rud irrigation network in Iran and Gediz watershed in Turkey were studied. 246 numerical models, including different sections of trapezoidal, rectangular and triangular earthen channels, were performed using the finite elements method (FEM). The results showed that, for a numerical simulation, a width of 15 times wider than the top width of the water surface in the channel would be required for the modelling of the left and right lateral boundaries. The comparison of the seepage with empirical relationships showed that the empirical relationships have too much error in the seepage estimation, however, Moritz's relation with the coefficient of determination (R2) of 0.373 was better than the others. The linear and nonlinear multivariate regression relationships provide a suitable match for the seepage discharge estimation. The wetted perimeter has been distinguished as an effective parameter in the seepage from the channels, yet the channels side slope has a low impact on the seepage.

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“…The results showed a significant effect of these parameters on the seepage from the earth dams. Salmasi and Mansuri (2013) carried out the effect of hydraulic conductivity ratio on seepage of earth dams with horizontal drain. Based on that study, if the filter is located away from upstream face, i.e., near the downstream toe, seepage is reduced but the saturated zone in downstream is increased.…”

Section: Introductionmentioning

confidence: 99%

Uplift pressure and hydraulic gradient in Sabalan Dam

2020

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The present study investigates the effects of clay core thickness and cutoff wall depth on some of the design parameters in the Sabalan rock fill dam by the finite-element method using the SEEP/W software. Clay cores with various thicknesses and cutoff walls in different situations of dam foundations were tested. The results revealed that (1) the maximum hydraulic gradient in Sabalan dam foundation occurs in the cutoff wall; (2) the minimum hydraulic gradient can be found by changing the location of the cutoff wall, under the center of clay core; and (3) discharge reduction depends on the optimum position at heel of the core. As the permeability decreases and the depth of the cutoff wall increases, the hydraulic gradient in the cutoff wall increases. As the thickness of the clay core increases, hydraulic gradient and the seepage discharge decreases and the uplift pressure increases.

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Effect of Homogeneous Earth Dam Hydraulic Conductivity Ratio (K x /K y ) with Horizontal Drain on Seepage

Cited by 9 publications

References 6 publications

Sensitivity Study of the Computational Parameters for the Deformation of Homogeneous Earth Dams

Sensitivity Study of the Computational Parameters for the Deformation of Homogeneous Earth Dams

Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements

Uplift pressure and hydraulic gradient in Sabalan Dam

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