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Dissertations / Theses on the topic 'Hydraulic barriers'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Quinn, Timothy Sean. "Experimental analysis of permeability barriers to hydraulic fracture propagation." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/34076.

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2

Schenning, Jessica A. "Hydraulic performance of polymer modified bentonite." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000403.

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3

Kishimoto, Angelica Mariko Naka. "Hydraulic Performance and Chemical Compatibility of Mineral Barriers to Mitigate Natural Contamination from Excavated Rocks." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188879.

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4

PUMA, SARA. "Chemico-mechanical improvement of bentonite barriers for pollutant containment." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2507922.

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Pollution control represents one of the main problems of public interest in all industrialised countries. Since the 1970s, when the engineering of waste containment began, the overall objective of Environmental Geotechnics was to limit contaminant discharge to groundwater and subsoil. Since the 1990s design engineers and environmental agencies have shown a growing interest in the use of geosynthetic clay liners (GCLs) as an alternative to compacted clays in cover systems or in bottom lining of waste containment facilities because they have very low hydraulic conductivity to water and relativ

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5

Mata, Mena Clemente. "Hydraulic behaviour of bentonite based mixtures in engineered barriers: The Backfill and Plug Test at the Äspö HRL (Sweden)." Doctoral thesis, Universitat Politècnica de Catalunya, 2003. http://hdl.handle.net/10803/6234.

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In 1996 the Backfill and Plug Test Project started at the Äspö Hard Rock Laboratory (Sweden) managed by SKB (the Swedish Radioactive Waste Agency). The Backfill and Plug Test Project makes up an important part of SKB's research in order to store nuclear waste in a deep geological repository in a safe manner. ENRESA (the Spanish Radioactive Waste Agency) collaborates in this project with the Swedish companies SKB and Clay Technology in characterising the hydro-mechanical behaviour of the backfill material used to backfill a gallery.<br/>The backfill, obtained by mixing 30% of sodium bentonite M

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6

Macambira, Indira Queiroz. "Comportamento hidráulico de alguns solos lateríticos para uso como barreira impermeável." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-14112002-103607/.

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Barreiras impermeáveis são uma necessidade em várias obras de engenharia e, em geral, naquelas destinadas à disposição de resíduos, como os aterros e as lagoas de efluentes. Solos compactados têm sido largamente utilizados para essa finalidade. Nesse sentido, esses solos devem ter características apropriadas, como baixa permeabilidade, as quais devem permanecer frente às solicitações de obra. Este trabalho trata do estudo da potencialidade do uso de solos lateríticos compactados em barreiras impermeáveis para sistemas de contenção de resíduos. Neste estudo avaliaram-se os efeitos da umidade e

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7

Lukiantchuki, Juliana Azoia. "Influência do teor de bentonita na condutividade hidráulica e na resistência ao cisalhamento de um solo arenoso utilizado como barreira impermeabilizante." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-20092007-090827/.

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A utilização de solo natural misturado com bentonita empregado em camadas impermeáveis para retenção de contaminante é bastante comum em aterros sanitários. Neste trabalho, serão apresentados os resultados de ensaios com misturas de solo-bentonita nos teores de 3%, 5% e 7%, utilizando-se um solo arenoso proveniente da região de Pindorama (SP). Os ensaios de condutividade hidráulica para o solo-bentonita foram realizados em permeâmetros de parede flexível. Os resultados obtidos indicam que para os teores de 5% e 7% de bentonita a condutividade hidráulica apresenta-se com valores adequados para

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8

Shooshpasha, Issa. "Performance of unsaturated clay based barrier under opposing thermal and hydraulic gradients." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40441.

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Experimental and numerical studies of coupled heat and moisture flow induced in an unsaturated soil by simultaneously imposed temperature and hydraulic gradients, in opposite directions, are presented. The experimental portion of the study was designed to provide information on the moisture and temperature distributions in relation to elapsed time and distance from the heat source. Tests were conducted on three different materials: (a) buffer (equal proportion of silica sand and sodium bentonite), (b) backfill (25 percent low swelling clay and 75 percent crushed granite rock), and (c) sand. Ea

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9

Britton, Jeremy Paul. "Soil-Bentonite Cutoff Walls: Hydraulic Conductivity and Contaminant Transport." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/28642.

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Soil-bentonite cutoff walls are commonly used to contain contaminants in the subsurface. A key property in determining the effectiveness of a cutoff wall is its hydraulic conductivity. There are important difficulties and uncertainties regarding the accuracy of commonly used methods of measuring the hydraulic conductivity of cutoff walls. When predicting contaminant transport through cutoff walls, common practice is to use the average hydraulic conductivity of the wall. There are some cases, however, such as circumferential cutoff walls with inward hydraulic gradients, where it is also imp

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10

Blank, Matthew David. "Advanced Studies of fish passage through culverts 1-D and 3-D hydraulic modeling of velocity, fish energy expenditure, and a new barrier assessment method /." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/blank/BlankM0508.pdf.

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Fish passage through culverts is an important component of road and stream crossing design. Although no comprehensive inventory of the number of culverts on fishbearing streams in the United States is available, there is an estimated 1.4 million streamroad crossings. The most common physical characteristics that create barriers to fish passage include excessive water velocity, insufficient water depth and large outlet drop heights. Over the past decade, interest in the effect culvert barriers have on aquatic systems has grown; accordingly, various passage assessment techniques have been used t

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11

Hess, Jeremy. "In-Situ Testing of Uretek's Injectable Barrier as a Mechanism for Groundwater Control." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6095.

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Construction projects involving the installation or repair of subsurface structures or utilities often require dewatering to induce a temporary lowering of the local groundwater elevation to facilitate construction. In the event that a known contaminant plume is present in an adjacent area, this dewatering may inadvertently draw the contaminant into the previously uncontaminated work area. Uretek Holdings, Inc. has developed its Injectable BarrierSM to be installed prior to dewatering exercises to provide a groundwater cut-off by reducing the potential movement of groundwater due to the hydr

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12

Ndongo, Alexis. "Contexte sédimentologique et tectonique du bassin paléoprotérozoïque de Franceville (Gabon) : structures de surpression fluide, bitumes et minéralisation uranium." Thesis, Dijon, 2016. http://www.theses.fr/2016DIJOS068/document.

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La formation des gisements métallogéniques en général et uranifères en particulier, dans les bassins paléoprotérozoïques, dépend de la migration des fluides riches en divers éléments (U, Cu, Fe, etc.). L’objet de cette thèse a été de définir le contexte tectonique, sédimentologique et diagénétique associées aux gisements bitume--‐uranium du bassin de Franceville. L’étude tectonique réalisée met en évidence des failles de transfert N180--‐170, héritées de la tectonique archéenne et des failles normales longitudinales N110--‐120. Ces deux familles de failles compartimentent le bassin de Francevi

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13

Madaffari, Maria Grazia. "New mixtures to be used in permeable reactive barrier for heavy-metals contaminated groundwater remediation : long-term removal efficiency and hydraulic behavior." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2015. http://www.theses.fr/2015ECAP0025/document.

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La dépollution des eaux souterraines est actuellement une des principaux défis environnementaux, considérant le nombre de sites contaminés et le risque posé à la santé humaine et à l'environnement par l'exposition à la contamination des eaux souterraines. La barrière réactive perméable (PRB) est une technologie in situ passive pour la remédiation des eaux souterraines contaminées. Il se compose d'une barrière placée perpendiculairement à l'écoulement des contaminants et constituée d'un matériau réactif qui traite la panache de contaminants le traversant sous le gradient hydraulique naturel. C’

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14

Weerasinghe, Isuri. "Investigation of the hydraulic performance at the geosynthetic clay liner overlap." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208258/1/Isuri_Weerasinghe_Thesis.pdf.

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Geosynthetic clay liners (GCL) are a critical barrier component in containment systems such as landfills and mines. This thesis presents a laboratory testing method and a numerical modelling technique to evaluate the hydraulic performance of Geosynthetic clay liner overlaps. The outcome of the thesis allows practitioners to evaluate specific GCL products and optimise the liner system performance based on the environmental conditions of the specific barrier applications. The industry benefits by reduced long-term experimentation and minimised financial costs, and improvement of service life of

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15

Hartl, Kevin M. "Facies distribution and hydraulic conductivity of lagoonal sediments in a Holocene transgressive barrier island sequence, Indian River Lagoon, Florida." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0014406.

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16

Takai, Atsushi. "Geoenvironmental Reliability of Soil-Bentonite Mixture Cutoff Walls." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/188847.

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17

Garcin, Patrick. "Etude expérimentale du comportement hydraulique et mécanique des géosynthétiques bentonitiques." Grenoble 1, 1997. http://www.theses.fr/1997GRE10015.

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Les geosynthetiques bentonitiques (gb) associent les proprietes mecaniques des geosynthetiques a la faible permeabilite d'une argile particuliere: la bentonite. Les proprietes de celle-ci conferent aux gb une permeabilite de l'ordre de 10#-#1#1 m/s. Les geosynthetiques bentonitiques (gb) sont des barrieres hydrauliques separant un milieu polluant ou non du sol. Nous avons montre que les gb ne remplacent pas systematiquement les couches d'argile compactee, mais sont une alternative interessante. Certains tests specifiques a la bentonite se revelent utiles pour caracteriser les gb, mais une appr

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18

Dourado, Kleber Azevedo. "Condutividade hidráulica de materiais de baixa permeabilidade: desenvolvimento, construção e teste de um sistema de medida." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-02042007-155703/.

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Este trabalho trata do desenvolvimento, montagem e teste de equipamentos para ensaios de materiais de baixa condutividade hidráulica, o qual inclui sistemas de controle hidráulico de volume constante, permeâmetros do tipo parede flexível e interfaces água-percolante. A vantagem desse arranjo está no maior controle dos ensaios e, notadamente, na redução do tempo de ensaio com emprego do sistema hidráulico de volume constante (sistema fechado), quando comparado aos ensaios que empregam o sistema aberto de controle hidráulico. Para testar o equipamento, foram ensaiados geocompostos bentoníticos (

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19

Bourgeois, Marc. "Le concept de barrière capillaire : étude par modèle numérique." Paris, ENMP, 1986. http://www.theses.fr/1986ENMP0017.

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20

Jacquard, Catherine. "Etude experimentale d'une barriere capillaire avec un modele de laboratoire." Paris, ENMP, 1988. http://www.theses.fr/1988ENMP0097.

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21

Raii, Mohamed. "Formulation, caractérisation et mise en œuvre des barrières perméables réactives à base de phosphate de calcium, utilisation pour la fixation de polluants." Phd thesis, Toulouse, INPT, 2012. http://oatao.univ-toulouse.fr/9123/1/raii.pdf.

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L'objectif principal de cette thèse est la formulation des mélanges stables contenant l'hydroxyapatite gel synthétisée (Ca-HAGel). Le comportement rhéologique des mélanges Eau/(sulfate de calcium) et hydroxyapatite/(sulfate de calcium) a été étudié. Les résultats ont montré que tout les mélanges sont caractérisés par un comportement rhéologique rhefluidifiant et thixotrope. Le potentiel zeta a été utilisé dans cette étude pour mieux appréhender les interactions entre les particules et leur effet sur le comportement des mélanges. La fixation de sulfate sur la surface de Ca- HA favorise la stabi

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22

Silva, Christopher Fonseca da. "Estudo do comportamento hidráulico de mistura solo-bentonita visando alternativa de emprego como sistema de proteção para aterros sanitários." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18132/tde-24062015-105351/.

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Este trabalho apresenta um estudo sobre a influência do acréscimo de 4% de bentonita sódica, da anisotropia inerente, produzida pela compactação, e do estado de tensões no comportamento hidráulico de um solo areno-argiloso encontrado na região Costeira Sul do estado do Rio Grande do Sul. Neste estudo, busca-se não somente viabilizar o emprego do referido solo como barreira mineral em obras de proteção ambiental, mas também verificar seu desempenho, quando misturado ao aditivo, perante as condições de fluxo de água experimentalmente impostas, antes e depois da fase de consolidação, nas direções

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23

Ahou, Ghalandari Bahar. "Design of passive methane oxidation biosystems considering their response to the presence of capillary barrier effect." Thèse, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9570.

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La construction des biosystèmes d’oxydation passive du méthane (BOPM) est une option économique et durable pour réduire les émissions de méthane des sites d’enfouissement de déchets et des effets subséquents du réchauffement climatique. Les BOPM sont constitués de deux couches principales: la couche d'oxydation du méthane (MOL) et la couche de distribution du gaz (GDL). L'oxydation du méthane se produit dans la MOL par les réactions biochimiques des bactéries méthanotrophes, et la GDL est construite sous la MOL pour intercepter et distribuer les émissions fugitives de biogaz à la base de la MO

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24

Gérard-Marchant, Pierre. "Caractérisation hydro-dynamique des transferts d'eau en conditions non saturées dans un milieu déformable à faible perméabilité : application aux matériaux de centre de stockage de déchets." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10155.

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L'utilisation, en centres de stockage de dechets, de materiaux deformables partiellement satures comme barrieres etanches rend necessaire la caracterisation de leurs proprietes hydrodynamiques, en particulier leur permeabilite. Ces dernieres sont examinees ici sous trois angles analytique, experimental et numerique. Si l'on suppose applicable la loi de darcy pour des milieux faiblement permeables, le transport de l'eau en milieu deformable peut etre modelise de maniere equivalente en coordonnees spatiales (formalisme eulerien) ou materielles (formalisme lagrangien). Les equations de transferts

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25

Hudson, Cody Brent. "Hydraulic performance of temporary construction traffic barriers." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-1076.

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Temporary Concrete Traffic Barriers (TCTBs) are essential in order to protect the traveling public and highway construction crews from accidents due to driver misfortune or negligence. In order for TCTBs to be installed, however, they must be successfully crash tested. Barrier height and drainage open space are key characteristics that influence this crash test rating. This is because an increase in height will insure that a vehicle will not over-top the barrier and a decrease in drainage open space will result in greater barrier mass, which will in turn resist larger impact forces. The factor

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26

Abichou, Tarek. "Hydraulic properties of foundry sands and their use as a hydraulic barriers." 1999. http://www.library.wisc.edu/databases/connect/dissertations.html.

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27

Agbenyeku, Emmanuel Emem-Obong. "Geoenvironmental study of hydraulic and mechanical properties of waste containment base barriers." Thesis, 2015. http://hdl.handle.net/10210/14672.

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M.Phil. (Civil Engineering)<br>The challenge of buried domestic solid wastes in landfill sites is viewed from the perspective of leachate migration and contamination in the substrate. Generally, this happens through the passage of the contaminant into the barrier lining material. The use of mineral liners as useful economic containment component has resulted in the assessment of their efficiency as barrier materials and in the attenuation of migrating contaminant species. To evaluate the potential use of mineral liners as containment base barriers to domestic waste, natural occurring soil samp

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28

"Hydraulic behaviour of bentonite based mixtures in engineered barriers: The Backfill and Plug Test at the Äspö HRL (Sweden)." Universitat Politècnica de Catalunya, 2003. http://www.tesisenxarxa.net/TDX-0412105-095450/.

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29

Meerdink, Jeffrey S. "Unsaturated hydraulic conductivity of barrier soils used for final covers." 1994. http://catalog.hathitrust.org/api/volumes/oclc/32846804.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1994.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 159-167).

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30

Bo-YuWu and 吳柏諭. "Study on the hydraulic barrier performance of remodeling Chinshui shale." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/87769529698984461563.

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碩士<br>國立成功大學<br>土木工程學系<br>102<br>Shale often be seen as the barrier layer underground and is cut by faults. However, it is very difficult to obtain a rock sample from great depth. Therefore, a sample remodeling technology is required to discuss hydraulic barrier of the fault gouge in shale. This study establishes the hydraulic barrier performance of Chinshui shale combined with the self-developed sample remodeling technology. The study includes the following three parts: (1) Capillary seal performance (2) Permeable seal barrier performance (3) Hydrofractured seal performance.Keyword: Chinshui

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31

Kumar, G. Suneel. "Chemical Compatibility of a Fly ash-bentonite based Hydraulic Barrier." Thesis, 2018. http://ethesis.nitrkl.ac.in/9506/1/2018_MT_216CE1027_GSKumar_Chemical.pdf.

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To assess the durability of the liner material,it is important to study its chemical compatibility. In an attempt to define the hydraulic conductivity characteristics of clay liners, use of normal water is far from being representative of the in-situ conditions. Therefore, influence of chemical solutions (inorganic) of different concentrations on hydraulic conductivity of fly ash-bentonite mixtures used as hydraulic barriers was examined. Hydraulic Conductivity of the liner material proved to be more sensitive to the permeant solution. The bentonite content in th

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32

Lin, Chien-Chi, and 林謙吉. "The Study of the Hydraulic Barrier Property in Geosynthetic Clay Liners." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/59574522212722933595.

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碩士<br>中原大學<br>土木工程研究所<br>90<br>Geosynthetic Clay liner (GCL) is the geosythetic developed in resent years. It is commonly used as the Hydraulic Barrier to decrease the liquid permeation. GCL is now broadly used in Europe and the US. It is applied to all kinds of constructions, such as water channel, pound, reservoir, and it is especially important in Landfill. The polluted and poisonous liquid due to the wastes would permeate the soil layer, and subsequently pollute the environment. In order to prevent the pollution, all Landfills have the Hydraulic Barrier. GCL has great performance as a mate

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33

Nelson, Margaret A. "Laboratory hydraulic conductivity testing protocols for paper sludges in barrier layers." 2001. http://catalog.hathitrust.org/api/volumes/oclc/47228585.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2001.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 60-62).

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34

Denham, William T. "The hydraulic conductivity and adsorptivity of clay barrier materials containing organoclay." Thesis, 1999. http://hdl.handle.net/2429/8926.

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This study investigated the hydraulic conductivity (k) and adsorptivity of simulated clay barrier material which contained organoclay, for the purpose of discovering if the inclusion of organoclay in clay barrier material could effectively immobilize inorganic contaminants. The organoclay was produced using sodium bentonite and the cationic surfactant hexadecyltrimethylammonium (HDTMA) . The test chemicals used to investigate k and adsorptivity were pentachlorophenol (PCP), naphthalene (NP), toluene (TL), and methyl ethyl ketone (MEK). Batch adsorption tests using the test chemicals in

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Kraus, Jason Frederic. "Effect of freeze-thaw on the hydraulic conductivity of barrier materials laboratory and field evaluation /." 1994. http://catalog.hathitrust.org/api/volumes/oclc/33034751.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1994.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 180-183).

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Palmer, Brian Grant. "Hydraulic characteristics of Class F fly ash as a barrier material laboratory and field evaluation /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36290541.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1996.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 114-116).

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37

HUANG, HSIANG-MAO, and 黃翔懋. "Hydraulic Barrier Property and Microscopic Characteristics of GeosyntheticClay Liners under alternating between Water and the Sea Water." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/18320609944257094480.

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碩士<br>中原大學<br>土木工程研究所<br>96<br>Geosynthetic Clay Liners (GCLs) usually apply to the project is utilize it absorb water of expand ability,to reduce the liquid ooze,today global water resource is serious insufficient,child care and effectively utilize water resource is very urgency.In water resource stored and the pollution defended of underground water,adopt adaptable blocking water material directly influence fruitage of the Hydraulic Barrier.And now it used in Landfill、 reservoir、artifact water hole and other project of hydraulic barrier. As a result of the GCLs apply used in tap water is fru

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38

Thorstad, Patricia Ann. "Field performance of a geosynthetic clay liner (GCL) used as the hydraulic barrier layer in a landfill cover in Southwestern Wisconsin." 2002. http://catalog.hathitrust.org/api/volumes/oclc/50870894.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 2002.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 116-122).

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39

Hosney, Mohamed. "PERFORMANCE OF GEOSYNTHETIC CLAY LINERS IN COVER, SUBSURFACE BARRIER, AND BASAL LINER APPLICATIONS." Thesis, 2014. http://hdl.handle.net/1974/8641.

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The use of geosynthetic clay liners (GCLs) as (i) covers for arsenic-rich gold mine tailings and landfills, (ii) subsurface barrier for migration of hydrocarbons in the Arctic, and (iii) basal liner for sewage treatment lagoons were examined. After 4 years in field and laboratory experiments, it was found that best cover configuration above gold mine tailings might include a layer of GCL product with polymer-enhanced bentonite and a geofilm-coated carrier geotextile serving above the tailings under ≥ 0.7 m overburden. However, acceptable performance could be achieved with using a standard GCL

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40

"Hydraulic conductivity as a function of depositional environments on a barrier island, Anclote Key Pinellas and Pasco Counties, Florida [electronic resource] / by Richard J. Stebnisky." 1987. http://purl.fcla.edu/fcla/dl/SF00000120.jpg.

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41

"Advanced studies of fish passage through culverts: One-dimensional and three-dimensional hydraulic modeling of velocity, fish energy expenditure, and a new barrier assessment method." MONTANA STATE UNIVERSITY, 2008. http://pqdtopen.proquest.com/#viewpdf?dispub=3297560.

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