Academic literature on the topic 'Earth dam'

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Journal articles on the topic "Earth dam"

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Miller, A. P., Yu P. Pravdivets, and V. A. Salov. "Earth overflow dam." Hydrotechnical Construction 21, no. 8 (1987): 503–7. http://dx.doi.org/10.1007/bf01424789.

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Al-Shukur, Abdul-Hassan K., and Ranya Badea’ Mahmoud. "Failure of Zoned Earth Dam (An analysis of earth dam break)." Journal of University of Babylon for Engineering Sciences 27, no. 1 (2019): 344–53. http://dx.doi.org/10.29196/jubes.v27i1.2171.

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One of the most common type of embankment dam failure is the dam-break due to overtopping. In this study, the finite elements method has been used to analyze seepage and limit equilibrium method to study stability of the body of an earthfill dam during the flood condition. For this purpose, the software Geostudio 2012 is used through its subprograms SEEP/W and SLOPE/W. Al-Adhaim dam in Iraq has been chosen to analysis the 5 days of flood. It was found that the water flux of seepage during the flood reaches about 8.772*10-5. m3/sec when the water level 146.5 m at 2nd day. Seepage through the em
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H. Al-Saigh, Nabeel. "Seismicity of Mosul Dam Reservoir." Iraqi National Journal of Earth Sciences 8, no. 2 (2008): 11–16. http://dx.doi.org/10.33899/earth.2008.5481.

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Ma, Xiu Yuan, Yong Bai, and Xiu Guang Song. "Analysis of Weak Stress Aging in Earth Dam." Key Engineering Materials 261-263 (April 2004): 1535–38. http://dx.doi.org/10.4028/www.scientific.net/kem.261-263.1535.

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The earth dam type is widely used in the dam engineering. According to the investigation, the earth dam would suffer problems after running 100 to 200 years in good filling quality. However, in China, for many reasons, it would only need 30 to 40 years when problems occur. This essay study the problems about weak stress of earth dam by the site investigations, theoretic analysis and finite element analysis and put forward the theory of earth dam aging induced by stress weakening.
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Gao, Jiang Lin, Zhi Gang Yang, and Shu Wang Yan. "Numerical Simulation of Interaction of Cut-Off Wall and Earth-Rock Dam in the Reinforcement Project." Applied Mechanics and Materials 170-173 (May 2012): 2181–87. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2181.

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Concrete cut-off wall has been widely used in the reinforcement project of earth-rock dam. Its design method and construction technology are comparatively mature, but comprehensive study of interaction of cut-off wall and dam is few, especially for the case that new cut-off wall built in earth-rock dam. In order to discuss the principal and law of interaction of cut-off wall and earth-rock dam in the reinforcement project, seepage field and stress field coupled numerical model was established by using ABAQUS. The contact between the wall and the dam together with the coupling of the stress and
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Xue, Binghan, Jianglin Gao, Songtao Hu, Yan Li, Jianguo Chen, and Rui Pang. "Ground Penetrating Radar Image Recognition for Earth Dam Disease Based on You Only Look Once v5s Algorithm." Water 15, no. 19 (2023): 3506. http://dx.doi.org/10.3390/w15193506.

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The Ground Penetrating Radar (GPR) method is a commonly used method for earth dam disease detection. However, the major challenge is that the obtained GPR image data of earth dam disease mainly relies on human judgment, especially in long-distance earth dam disease detection, which may lead to misjudgments and omissions. The You Only Look Once v5s (YOLOv5s) algorithm is innovatively employed for GPR image recognition to address the current challenge. The YOLOv5s neural network model has advantages over the traditional convolutional neural network in terms of object detection speed and accuracy
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Krutov, Denis A. "Repairing earth dam drainage systems." Vestnik MGSU, no. 7 (July 2019): 901–11. http://dx.doi.org/10.22227/1997-0935.2019.7.901-911.

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Introduction: when reconstructing or overhauling dams, great attention should be paid to drainage systems as the most critical components of the installations. The article describes the typical malfunctions of earth dam pipe drainages. The research considers geological and hydrogeological features that were not taken into account when developing projects.
 Materials and methods: control and measuring instrumentation (piezometer network), full-scale experiments on disabling pipe drainage and mathematical modelling were used as the filtration regime research methods.
 Results: analysis
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Wang, Hong Qi, Yi Wen Zhu, Jun Sheng Chen, and Yu E. Zhao. "The Monitoring Analysis on Subsidence of the Connection Earth Dam in Chaozhou Water Supply Pivot Project." Applied Mechanics and Materials 170-173 (May 2012): 1897–902. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.1897.

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This paper introduces the field monitoring results of the connection earth dam in Chaozhou water supply pivot project. In this project, magnetic lamination-settlement measuring instrument, which is installed 3 ones in four sections each, is used to measure the settlement of the Xixi earth dam. Based on the analysis of monitoring data and simplified calculation, we get some useful conclusions. The magnetic lamination-settlement measuring instrument can directly measure the absolute value of deformation without the need to correct, calculate or measure benchmark. It’s more accurate than pipe typ
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Kho, F. W. L., P. L. Law, S. H. Lai, Y. W. Oon, L. H. Ngu, and H. S. Ting. "Quantitative dam break analysis on a reservoir earth dam." International Journal of Environmental Science & Technology 6, no. 2 (2009): 203–10. http://dx.doi.org/10.1007/bf03327623.

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Mazaheri, Ahmad R., Mehdi Komasi, Majid Veisi, and Masoud Nasiri. "Dynamic analysis of earth dam using numerical method – a case study: Doyraj earth dam." Acta Geotechnica Slovenica 18, no. 1 (2021): 65–78. http://dx.doi.org/10.18690/actageotechslov.18.1.65-78.2021.

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The precise study of the response of earth dams to earthquakes is one of the most complex issues in the field of soil structures. In this research, dynamic analysis of earth dam structures (a case study: Doyraj dam in the west of Iran) have been performed using 2D Finite Difference Method (2D F.D.M.). The aim of this study is to investigate accelerations, lateral (horizontal) and vertical displacements (i.e. settlements) due to earthquake occurrence. The results of dynamic analysis indicate that the performance of the dam is satisfactory for each one of the seismic scenarios considered in this
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Dissertations / Theses on the topic "Earth dam"

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Charatpangoon, Bhuddarak. "SEISMIC SAFETY EVALUATION OF EARTH DAM AND POSSIBLE REHABILITATION METHODS." 京都大学 (Kyoto University), 2014. http://hdl.handle.net/2433/192169.

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Guo, Xiangfeng. "Probabilistic stability analysis of an earth dam using field data." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALI017.

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Compte tenu de la nature des sols, des incertitudes sur leurs propriétés sont largement rencontrées en géotechnique, en particulier dans le domaine des barrages en terre. Actuellement, il est de plus en plus nécessaire de tenir compte de ces incertitudes pour l'évaluation de la sécurité des grands barrages, notamment dans le cadre des études d’analyse de risques. Cependant, les analyses probabilistes sont complexes et difficiles à mettre en œuvre en raison du nombre limité de mesures, des temps de calcul importants et des limites des méthodes fiabilistes implémentées dans les outils de simulat
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Lau, Tak Chi. "Fully-coupled earthquake response analysis of earth dam including anisotropic effect /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202008%20LAU.

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Haeri, Seyed Mohsen. "Response of earth and rockfill dams to strong earthquakes including dam-foundation interaction effects." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47094.

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RODRIGUES, RODRIGO DE LIMA. "BEHAVIOR OF THE LEFT EARTH DAM OF ITAIPU IN OPERATION PERIOD." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=32942@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Itaipu Binacional é uma usina hidrelétrica localizada no Rio Paraná, entre Brasil e Paraguai. A barragem que forma o reservatório é composta por estruturas de concreto, enrocamento e terra. Após o enchimento do reservatório, em 1984, o nível do lago se manteve com variação média de 1,5 m, entre as cotas 219 m e 220,5 m, cotas de operação da usina, apenas em poucas ocasiões foi reduzido abaixo da cota 219 m. Entre os anos de 2012 e 2015, devid
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BARRANTES, PERLITA ROSMERY ESAINE. "SEISMIC AND HYDROMECHANICAL ANALYSIS OF A ZONED EARTH DAM IN PERU." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2013. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=34814@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Prever o comportamento de estruturas de solo de grande porte, como barragens, durante a construção, em operação e inclusive sob o efeito de eventos sísmicos tem muita importância para evitar possíveis consequências catastróficas e indesejáveis. Neste sentido, este estudo apresenta, através de uma análise acoplada hidromecânica pelo método dos elementos finitos, os resultados numéricos discutidos em termos de tensões e suas trajetórias, desloc
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Davoudi, Mohammad Hadi. "Evolution of permeability in earth dam cores made of compacted till." Thèse, Université de Sherbrooke, 1999. http://savoirs.usherbrooke.ca/handle/11143/1702.

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In zoned dams, it is expected that pore pressure is uniformly dissipated from the upstream to the downstream side of the core. Based on this hypothesis, the potential profile across the core in a steady state seepage flow is expected to be more or less linear and the equipotential lines should be distributed quasi-uniformly. This analysis is based on a homogeneous saturated permeability throughout the core. For some large cores made of glacial moraine (till), it has been reported that the pore pressures were significantly in excess of expected values during and after reservoir filling. The ma
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Xu, Yong-Qiang. "Applications of Richards equation to earth dam design and runoff problems." Kyoto University, 2005. http://hdl.handle.net/2433/145028.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第11627号<br>農博第1483号<br>新制||農||907(附属図書館)<br>学位論文||H17||N4020(農学部図書室)<br>23270<br>UT51-2005-D376<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授 河地 利彦, 教授 青山 咸康, 教授 三野 徹<br>学位規則第4条第1項該当
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Yaseri, Alireza. "Analysis of earth dam-flexible canyon interaction by 3D hybrid FEM-SBFEM." Doctoral thesis, Université Laval, 2021. http://hdl.handle.net/20.500.11794/70281.

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La géométrie et la flexibilité d'un canyon sont les paramètres qui affectent grandement la valeur des périodes naturelles dans les barrages en terre. Le canyon entourant des barrages peut être considéré comme un domaine illimité. Pour prendre en compte ces deux effets, le canyon a été modélisé par SBFEM et le barrage en terre, à géométrie limitée, par FEM. La technique hybride SBFEM-FEM pour l'analyse tridimensionnelle dynamique de l'interaction sol-barrage a été validée avec les résultats disponibles dans la littérature. Comme la matrice de rigidité dynamique du domaine non borné est complexe
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Ersayın, Deniz Tayfur Gökmen. "Studying Seepage In A Body Of Earth-Fill Dam By (Artifical Neural Networks) Anns/." [s.l.]: [s.n.], 2006. http://library.iyte.edu.tr/tezler/master/insaatmuh/T000350.pdf.

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Books on the topic "Earth dam"

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Johnson, Douglas L. Periodic dam safety inspection report: Serenity Lake Dam. Water Resources Program, Dam Safety Office, Washington State Dept. of Ecology, 2001.

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Johnson, Douglas L. Periodic dam safety inspection report: Rose Lake Dam. Washington State Dept. of Ecology, 1994.

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Johnson, Douglas L. Periodic dam safety inspection report: Indian Creek Dam. Shorelands & Water Resources Program, Technical Support Section, Washington State Dept. of Ecology, 1997.

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Johnson, Douglas L. Periodic dam safety inspection report: Tsugawa Brothers Reservoir Dam. Shorelands & Water Resources Program, Dam Safety Section, Washington State Dept. of Ecology, 1995.

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Johnson, Douglas L. Periodic dam safety inspection report: Beitey Reservoir Dam, Stevens County, Washington. Washington State Dept. of Ecology, 2001.

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Conference, British Dam Society. The embankment dam. T. Telford, 1991.

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Johnson, Douglas L. Periodic dam safety inspection report: Sinlahekin Dams. Shorelands & Water Resources Program, Dam Safety Section, Washington State Dept. of Ecology, 1996.

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C, Hirschfeld Ronald, Poulos Steve J, Bertram George E, and Casagrande Arthur 1902-, eds. Embankment-dam engineering: Casagrande volume. Krieger Pub. Co., 1987.

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Johnson, Douglas L. Periodic dam safety inspection report: Lake Limerick Project. Washington State Dept. of Ecology, 1998.

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United States. Federal Emergency Management Agency. Conduits through embankment dams: Best practices for design, construction, problem identification and evaluation, inspection, maintenance, renovation, and repair. Federal Emergency Management Agency, 2005.

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Book chapters on the topic "Earth dam"

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Alonso, Eduardo E., Núria M. Pinyol, and Alexander M. Puzrin. "Earth Dam Sliding Failure: Aznalcóllar Dam, Spain." In Geomechanics of Failures. Advanced Topics. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3538-7_4.

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Tan, Yan, and Graeme Hugo. "Demographic Impacts of the Three Gorges Dam." In Engineering Earth. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9920-4_91.

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Chen, Chen-Tung Arthur. "The Impact of Dams on Fisheries: Case of the Three Gorges Dam." In Challenges of a Changing Earth. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-642-19016-2_16.

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Harris, Stuart A. "Mega-Hydroelectric Power Generation on the Yangtze River: The Three Gorges Dam." In Engineering Earth. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9920-4_90.

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Aswar, D. S., P. B. Ullagaddi, and S. D. Ambadkar. "Geological Characterization of Bhama Askhed Dam Site." In Society of Earth Scientists Series. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-56176-4_4.

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Prabhakar, Neetha, and K. Rangaswamy. "Liquefaction Analysis of Earth Embankment Dam Structure." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6998-0_49.

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Casablanca, Orazio, Andrea Nardo, Giovanni Biondi, Giuseppe Di Filippo, and Ernesto Cascone. "Seismic Performance of a Zoned Earth Dam." In Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 2022). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11898-2_176.

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Singh, Vijay P., and Panagiotis D. Scarlatos. "Modeling of gradual earth-fill dam erosion." In Environmental Geotechnics and Problematic Soils and Rocks. CRC Press, 2021. http://dx.doi.org/10.1201/9781003211051-13.

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Abdulrazzaq, Israa Dheyaa, Qassem H. Jalut, and Jasim M. Abbas. "Evaluation of Dam Breach Parameters Using Different Approaches for Earth-Fill Dam." In Geotechnical Engineering and Sustainable Construction. Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-6277-5_12.

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Noureddine, Mohamad Ali, Florent De Martin, Rani El Meouche, Muhammad Ali Sammuneh, Fakhreddine Ababsa, and Mickael Beaufils. "Seismic Digital Twin of the Dumanoir Earth Dam." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-54376-0_20.

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Conference papers on the topic "Earth dam"

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Temple, Darrel M., and Gregory J. Hanson. "Earth Dam Overtopping and Breach Outflow." In World Water and Environmental Resources Congress 2005. American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40792(173)407.

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Walker, Michael P., Mary C. Nodine, and Rick Deschamps. "Diaphragm Walls at the Canton Dam Auxiliary Spillway." In Earth Retention Conference (ER) 2010. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41128(384)17.

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Erfeng, Zhao, Jiang Yufeng, and Gu Yanling. "Multi Scale Information Fusion Predicating Model of Gravity Dam Deformation." In Earth and Space 2014. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479179.058.

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Bunkley, Steven, Charles Ellison, Garry Glaspell, Jordan Klein, and Anton Netchaev. "Robotic Localization in Earth Dam Outlet Works." In 2024 IEEE/SICE International Symposium on System Integration (SII). IEEE, 2024. http://dx.doi.org/10.1109/sii58957.2024.10417365.

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Aniskin, Nikolai, and Stanislav Sergeev. "Numerical prediction model of an earth dam." In THE 3RD INTERNATIONAL SYMPOSIUM ON CIVIL, ENVIRONMENTAL, AND INFRASTRUCTURE ENGINEERING (ISCEIE) 2024. AIP Publishing, 2025. https://doi.org/10.1063/5.0267260.

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Zhiwei, Niu, Tongchun Li, and Wei Li. "Dynamic Analysis for Earth Rock-Fill Dam Including Dam-Reservoir-Foundation Interaction." In 12th Biennial International Conference on Engineering, Construction, and Operations in Challenging Environments; and Fourth NASA/ARO/ASCE Workshop on Granular Materials in Lunar and Martian Exploration. American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41096(366)256.

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Arunapriya, G. G. D. P. I., A. G. S. I. Liyanage, S. Kishanth, H. M. R. Premasiri, N. P. Ratnayake, and A. M. K. B. Abeysinghe. "Applicability of GPR technique for earthen dam failures." In International Symposium on Earth Resources Management & Environment - ISERME 2023. Department of Earth Resources Engineering, 2023. http://dx.doi.org/10.31705/iserme.2023.14.

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A dam is a structure constructed across a river or stream to store water upstream from the obstruction. Dams are susceptible to damage for various reasons, which can lead to many catastrophic disasters. Therefore, identifying the dam's structural failures prior to a disaster is crucial. Drilling can be used for dam failure identification. But it is costly and destructive. Integrated geophysical methods have always helped in identifying subsurface features. In the current investigation, the applicability of ground penetrating radar (GPR) to detect potential failures in earthen dams was assessed
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Khalid, Perveiz, Shahid Ghazi, Qamar Yasin, and Shahzada Khurram. "Assessment of Seismic Hazard of the Kalam-Ashrit Dam, Swat, Pakistan Seismic hazard analysis of Kalam-Ashrit Dam, Pakistan." In Annual International Conference on Geological & Earth Sciences. Global Science & Technology Forum (GSTF), 2014. http://dx.doi.org/10.5176/2251-3353_geos14.18.

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Ziyang, A. Li, B. Wang Xin, C. Chen Cheng, and D. Guo Li. "Reliability Analysis on Sluice Gate of Cao’E River Dam Under Tidal Bore Loads." In Earth and Space 2014. American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479179.066.

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M-Gharrib Noori, Krikar, Hawkar Hashim Ibrahim, and Dr Ahmed Mohammed Hasan. "Influence of Upstream Blanket on Earth Dam Seepage." In International Engineering Conference. Ishik University, 2018. http://dx.doi.org/10.23918/iec2018.14.

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Reports on the topic "Earth dam"

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Uden, Daniel. 2024 viewshed analysis of Homestead National Historical Park: Updated to include screening provided by trees and structures. National Park Service, 2025. https://doi.org/10.36967/2313523.

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Homestead National Historical Park (HOME), southeast Nebraska, commemorates the 1862 Homestead Act with series of exhibits, including outdoor ecosystems that represent how the landscape may have appeared historically. The historical, scenic views of HOME have high aesthetic value but are threatened by land use changes, especially construction of tall structures visible over long distances. The impacts of development on scenic views depends on the location and height of constructed objects, topographical variability of the landscape, and the degree of visual obstruction from existing abovegroun
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Corriveau, L., and E. G. Potter. Advancing exploration for iron oxide-copper-gold and affiliated deposits in Canada: context, scientific overview, outcomes, and impacts. Natural Resources Canada/CMSS/Information Management, 2024. http://dx.doi.org/10.4095/332495.

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The Geo-mapping for Energy and Minerals (GEM) and Targeted Geoscience Initiative (TGI) programs conducted extensive collaborative research on mineral systems with iron oxide-copper-gold (IOCG) and affiliated deposits in prospective settings of Canada. Regional alteration mapping as well as geochemical and geophysical modelling undertaken under the GEM program documented the evolution of polymetallic metasomatic systems with iron-oxide and alkali-calcic alteration and led to an increased recognition of the mineral potential of poorly explored areas and historic deposits of the Great Bear magmat
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Hodul, M., H. P. White, and A. Knudby. A report on water quality monitoring in Quesnel Lake, British Columbia, subsequent to the Mount Polley tailings dam spill, using optical satellite imagery. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/330556.

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In the early morning on the 4th of August 2014, a tailings dam near Quesnel, BC burst, spilling approximately 25 million m3 of runoff containing heavy metal elements into nearby Quesnel Lake (Byrne et al. 2018). The runoff slurry, which included lead, arsenic, selenium, and vanadium spilled through Hazeltine Creek, scouring its banks and picking up till and forest cover on the way, and ultimately ended up in Quesnel Lake, whose water level rose by 1.5 m as a result. While the introduction of heavy metals into Quesnel Lake was of environmental concern, the additional till and forest cover scour
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Hungerman, Daniel, and Vivek Moorthy. Every Day is Earth Day: Evidence on the Long-term Impact of Environmental Activism. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w26979.

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Heffernan, Andrea, Ashley McAskill, Sara Snyder, et al. The Making of the 2010 Keep Columbus Beautiful Earth Day Celebration. University of Iowa, 2010. http://dx.doi.org/10.17077/qzxm-8td3.

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Lawrence, T., and G. R. Brooks. Stop 2-6: 1908 Notre-Dame-de-la-Salette earth flow. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2011. http://dx.doi.org/10.4095/289576.

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Puetz, Angela M., R. C. Olsen, and Brian Anderson. Effects of LIDAR Point Density on Bare Earth Extraction and DEM Creation. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada534534.

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Dudley, J. P., and S. V. Samsonov. SAR interferometry with the RADARSAT Constellation Mission. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/329396.

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The RADARSAT Constellation Mission (RCM) is Canada's latest system of C-band Synthetic Aperture Radar (SAR) Earth observation satellites. The system of three satellites, spaced equally in a common orbit, allows for a rapid four-day repeat interval. The RCM has been designed with a selection of stripmap, spotlight, and ScanSAR beam modes which offer varied combinations of spatial resolution and coverage. Using Differential Interferometric Synthetic Aperture Radar (DInSAR) techniques, the growing archive of SAR data gathered by RCM can be used for change detection and ground deformation monitori
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Blundell, S. User guide : the DEM Breakline and Differencing Analysis Tool—gridded elevation model analysis with a convenient graphical user interface. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/45040.

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Gridded elevation models of the earth’s surface derived from airborne lidar data or other sources can provide qualitative and quantitative information about the terrain and its surface features through analysis of the local spatial variation in elevation. The DEM Breakline and Differencing Analysis Tool was developed to extract and display micro-terrain features and vegetative cover based on the numerical modeling of elevation discontinuities or breaklines (breaks-in-slope), slope, terrain ruggedness, local surface optima, and the local elevation difference between first surface and bare earth
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Papasodoro, C., D. Bélanger, G. Légaré-Couture, and H. Russel. Assessment of approaches and costs associated with the correction of the HRDEM product data in the Canadian Arctic. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331974.

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The High-Resolution Digital Elevation Model (HRDEM) was created as part of the National Elevation Data Strategy to provide detailed elevation data across the country. For the Canadian Arctic, the HRDEM was based on the ArcticDEM initiative with additional post-processing by the Canada Centre for Mapping and Earth Observation to create a 2-meter Digital Surface Model (DSM) covering a geographic region of approximately 4.6 million km2. This report provides details on the investigation of the data issues within HRDEM in the North, available open and commercial sources of elevation data that could
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