Transient Head Development due to Flood Induced Seepage under Levees

Ozkan, Senda; Adrian, Donald Dean; Sills, G. L.; Singh, Vijay P.

doi:10.1061/(asce)1090-0241(2008)134:6(781)

Cited by 8 publications

(7 citation statements)

References 10 publications

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“…Mapped surface sedimentary facies [7] are expected to represent near-surface (0-40 m) sediments. (b) Schematic view of confined flow under a levee (adapted from [8]).…”

Section: Introductionmentioning

confidence: 99%

“…These earthen levees provide safety to major urban cities (e.g., Kansas City, St. Louis, Memphis, Vicksburg, Baton Rouge, and New Orleans) in the United States during seasonal flooding events [9]. The seasonal hydraulic head fluctuations in the Mississippi River incorporate pore pressure changes in the hydraulically connected aquifer below the protected side of artificial levees [8,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…We also compare the predicted effective pressure variations from the seismic data against a stress distribution diagram that uses the local boring data and a transient pore pressure fluid flow model [8]. The effective pressure difference between low and high stage, or the differential effective pressure allow us to compare the seismic data results with the modeled stress distribution diagram.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seepage-Induced Pore Pressure Variations Beneath an Earthen Levee Measured with a Novel Seismic Tool

Locci-Lopez

Lorenzo

2023

Geosciences

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Shear-wave seismic reflection velocity-versus-depth models can complement our understanding of seepage pore pressure variations beneath earthen levees at locations between geotechnical sites. The seasonal variations of water level in the Mississippi River create pore pressure changes in the adjacent hydraulically connected aquifer on the protected side of artificial levees. Time-lapse shear-wave velocity analysis or repetition of seismic acquisition over an area is a non-invasive method that can detect seasonal pore pressure variations in shallow (<40 m) aquifers. The seismic reflection patterns during the seasonal pore pressure variations of the river show a distinctive change in the velocity semblance analysis, which is translated as a change in the average stress carried by the grain-to-grain contact, or simply the effective pressure. The seismic data show a greater variation of up to +140/−40 m/s or +700/−150 kPa in the confined aquifer zone, compared with the leaky confined aquifer zone of up to +46/−48 m/s or +140/−80 kPa. These relative effective pressure characteristics allow us to distinguish between confined and leaky aquifers and can be an optional approach for pressure prediction in floodplains along levees without the need to drill borings in the area to measure piezometric data.

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“…Mapped surface sedimentary facies [7] are expected to represent near-surface (0-40 m) sediments. (b) Schematic view of confined flow under a levee (adapted from [8]).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Seepage-Induced Pore Pressure Variations Beneath an Earthen Levee Measured with a Novel Seismic Tool

Locci-Lopez

Lorenzo

2023

Geosciences

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“…The former induces a tremendous impact effect, which significantly decreases the resisting forces against seepage failure by increasing erosion power of seepage flow (Luo et al, 2013(Luo et al, , 2016. Extensive research has been carried out focusing on seepage failure mainly focuses on steady flow condition (Sellmeijer, 1988, Sellmeijer and Koenders , 1991, Asaoka and Kodaka, 1992,Fontana, 2008, Maknoon and Mahdi, 2010 and transient flow condition (Ozkan, 2003, Ozkan et al, 2008, El Shamy and Aydin , 2008, Awal et al, 2011, Luo et al, 2013. While these studies focus mainly on geotechnical failure of an earthen embankment, there is lack of study computing initial thrust force exerted on the embankment in presence of which, later geotechnical failures are initiated.…”

Section: Introductionmentioning

confidence: 99%

Development of a Semi-analytical Dynamic Thrust Force Model

Akter¹,

Алим

Hussain

et al. 2021

Preprint

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A moving water mass generates force which is exerted on its moving path. Cyclone generated storm surge or earthquake generated tsunami are specific examples of moving water mass the generates force along the coasts. In addition to human lives, these moving water masses cause severe damages to the coastal infrastructure due to tremendous force exerted on these structures. To assess the damage on these infrastructures, an essential parameter is the resultant force exerted on these structures. To evaluate the damages, there is hardly any quantitative method available to compute this force. In this paper we have developed a semi-analytical model, named as Dynamic Force Model (DFM), by using Variational Iteration Method to compute this force. As governing equations, we have used the Saint Venant equations which are basically 1D shallow water equations derived from the Navier-Stokes equations. The verified, calibrated and validated DFM is applied in Bangladesh coastal zone to compute dynamic thrust force due to tropical cyclone SIDR.

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“…Some of the studies for developing a mechanistic understanding of progressive piping are by Sellmeijer and Koenders [25], Ojha et al [26,27], Kakuturu and Reddi [5], Bonelli et al [28], El Shamy and Aydin [29], and Bonelli and Brivois [30]. Recent research investigations by Fell et al [31], Ojkan [32], and Yi [33] have focused on the transience and evolution of progressive piping due to natural conditions. Experimental methods are described by Kakuturu and Reddi [34] for the evaluation and characterization of some soil properties that influence progressive piping and, conversely, self-healing of cracks in earth dams.…”

Section: Introductionmentioning

confidence: 99%

Meshless Modeling of Flow Dispersion and Progressive Piping in Poroelastic Levees

Khoury

Divo

Kassab

et al. 2019

Fluids

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Performance data on earth dams and levees continue to indicate that piping is one of the major causes of failure. Current criteria for prevention of piping in earth dams and levees have remained largely empirical. This paper aims at developing a mechanistic understanding of the conditions necessary to prevent piping and to enhance the likelihood of self-healing of cracks in levees subjected to hydrodynamic loading from astronomical and meteorological (including hurricane storm surge-induced) forces. Systematic experimental investigations are performed to evaluate erosion in finite-length cracks as a result of transient hydrodynamic loading. Here, a novel application of the localized collocation meshless method (LCMM) to the hydrodynamic and poroelastic problem is introduced to arrive at high-fidelity field solutions. Results from the LCMM numerical simulations are designed to be used as an input, along with the soil and erosion parameters obtained experimentally, to characterize progressive piping.

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Transient Head Development due to Flood Induced Seepage under Levees

Cited by 8 publications

References 10 publications

Seepage-Induced Pore Pressure Variations Beneath an Earthen Levee Measured with a Novel Seismic Tool

Seepage-Induced Pore Pressure Variations Beneath an Earthen Levee Measured with a Novel Seismic Tool

Development of a Semi-analytical Dynamic Thrust Force Model

Meshless Modeling of Flow Dispersion and Progressive Piping in Poroelastic Levees

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