Academic literature on the topic 'Winter hydraulic failure'

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Journal articles on the topic "Winter hydraulic failure"

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Tolmachov, Serhij. "Research of the Reasons of Frost Destruction of Road Concrete." Key Engineering Materials 864 (September 2020): 175–79. http://dx.doi.org/10.4028/www.scientific.net/kem.864.175.

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The article analyzes the causes of the destruction of road concrete in the winter. The basic theories of concrete failure during freezing are presented. Hypothesis of R. Collins according to which the destruction occurs as a result of the pressure of ice, which is formed when water freezes onto the pore walls. The hydraulic pressure hypothesis of T. Powers, according to which the main cause of concrete destruction during cyclic freezing and thawing, is the hydraulic pressure that creates water in the pores and capillaries of concrete under the action of ice. The hypothesis of thermal destructi
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Łydźba, Dariusz, and Maciej Sobótka. "State of Strength in Massive Concrete Structure Subjected to Non-Mechanical Loads." Studia Geotechnica et Mechanica 36, no. 2 (2015): 37–43. http://dx.doi.org/10.2478/sgem-2014-0018.

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Abstract The paper deals with an impact of non–mechanical loads on the state of strength in massive concrete hydraulic structures. An example of hydroelectric plant subjected to the effect of water temperature annual fluctuation is considered. Numerical analysis of transient thermal–elasticity problem was performed. After determining the temperature distributions within the domain, the Duhamel-Neumann set of constitutive equations was employed to evaluate fields of mechanical quantities: displacement, strain and stress. The failure criterion proposed by Pietruszczak was adopted in assessing wh
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Holder, Graham K. "Sault Ste. Marie Lock reconstruction: hydraulic model studies of the stop log emergency closure and lock filling and emptying systems." Canadian Journal of Civil Engineering 25, no. 6 (1998): 1003–40. http://dx.doi.org/10.1139/l98-033.

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In July 1987, a section of the southwest wall of Sault Ste. Marie Lock failed during a locking operation when a portion of limestone facing, 60 m by 8 m, separated from the rubble backing wall. Engineering investigations resulted in the selection of the Recreational Lock Option, involving either downsizing the lock chamber within the existing lock or constructing a new lock as the most viable solutions. A Dry Dock Option, where the lock would be used to store craft during the winter months, was also considered. However, this option was abandoned during the course of testing. The engineering in
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Chen, A. C. T., and J. Lee. "Large-Scale Ice Strength Tests at Slow Strain Rates." Journal of Offshore Mechanics and Arctic Engineering 110, no. 3 (1988): 302–6. http://dx.doi.org/10.1115/1.3257066.

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In the winter of 1979/80, five petroleum companies participated in an Exxon Production Research Company program in which thirteen large-scale ice strength tests were conducted offshore in the vicinity of Prudhoe Bay. The purpose of the program was to determine the uniaxial compressive strength of annual sea ice as a function of strain rate and direction of loading with respect to preferred crystal alignment. Full ice sheet thickness test blocks with dimensions of 10 ft × 20 ft (3.05 m × 6.10 m) were cut free from the surrounding sheet ice. A hydraulic loading system with two million pounds of
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Aravani, Vasiliki P., Konstantina Tsigkou, Vagelis G. Papadakis, Wen Wang, and Michael Kornaros. "Anaerobic Co-Digestion of Agricultural Residues Produced in Southern and Northern Greece." Fermentation 9, no. 2 (2023): 131. http://dx.doi.org/10.3390/fermentation9020131.

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In Greece biomass is often being disposed of uncontrollably, resulting in significant environmental impacts. The aim of this study is the single-stage anaerobic co-digestion assessment, valorizing Northern and Southern Greece mixtures, resulting from previous literature reviews, experimental designs, and biochemical methane potential (BMP) assays. Regarding the methane yield maximization, in Northern Greece, the most suitable mixture was 10% corn silage, 80% cattle manure, and 10% malt; while in Southern Greece it was 10% corn silage, 57% cattle manure, 23% orange peels, and 10% olive pomace f
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Amey, Katherine Springer. "Revised Predictive Model for Successful Introduction of Native Ohio Brook Trout (Salvelinus fontinalis) in Select Streams in Geauga and Lake Counties, Ohio a." Ohio Journal of Science 114, no. 2 (2014): 19. http://dx.doi.org/10.18061/ojs.v114i2.4433.

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Eight cold-water streams in Lake and Geauga Counties, Ohio were evaluated to develop a revised predictive model to assess future streams for the introduction of threatened native Ohio Brook Trout (Salvelinus fontinalis). A 15-month study was conducted, ending May 2010, in streams where Brook Trout were previously introduced during the years 1997-2002. Fifty percent of the sixteen original reintroduction streams failed to support the establishment of self-sustaining populations of Brook Trout, indicating there were additional factors contributing to their success and failure. Of the 8 streams i
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MacBean, Natasha, Russell L. Scott, Joel A. Biederman, et al. "Testing water fluxes and storage from two hydrology configurations within the ORCHIDEE land surface model across US semi-arid sites." Hydrology and Earth System Sciences 24, no. 11 (2020): 5203–30. http://dx.doi.org/10.5194/hess-24-5203-2020.

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Abstract. Plant activity in semi-arid ecosystems is largely controlled by pulses of precipitation, making them particularly vulnerable to increased aridity that is expected with climate change. Simple bucket-model hydrology schemes in land surface models (LSMs) have had limited ability in accurately capturing semi-arid water stores and fluxes. Recent, more complex, LSM hydrology models have not been widely evaluated against semi-arid ecosystem in situ data. We hypothesize that the failure of older LSM versions to represent evapotranspiration, ET, in arid lands is because simple bucket models d
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Mazur, I., and M. Shcherbinin. "Investigation of dynamic processes in the hydraulic system of clamping the staffs of the segment unwinder of the unit of aggregation of rolls pipe welding machine 20-114." System technologies 1, no. 138 (2022): 98–114. http://dx.doi.org/10.34185/1562-9945-1-138-2022-09.

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In the technological line for the production of small diameter pipes used segment un-winder staffs with a cantilever drum and additional support. The experience of its operation has shown that one of its main shortcomings is the unsatisfactory operation of the hydraulic system clamping staffs. In the hydraulic clamping system of the staffs there are increased dynamic loads, which lead to the failure of components and elements of the hydraulic system. The layout of the hydraulic clamping system of the headquarters is made for design and technological rea-sons, without taking into account the in
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Farhadzadeh, Ali, Tao Xiang, Mohammad Khosravi, and Ali Khosravi. "RECESSION BY RANDOM WAVES: INSIGHTS FROM PHYSICAL MODELING OF CONSOLIDATED SANDY BLUFF." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 38. https://doi.org/10.9753/icce.v38.sediment.38.

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Coastal bluffs are dynamic landforms that recede due to various physical processes (Kamphuis, 1990). Understanding these processes is essential for effective bluff erosion management. This research investigates the physical mechanisms governing sandy bluff recession under random waves and fluctuating water levels. Wave action generates hydraulic pressures on the bluff, removing sediment and undermining stability. Toe erosion from wave impact causes undercutting and basal failures. Higher water levels increase hydraulic loading and erosion, while lower levels expose the bluff to more wave actio
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Fish, Katherine E., Rebecca L. Sharpe, Catherine A. Biggs, and Joby B. Boxall. "Impacts of temperature and hydraulic regime on discolouration and biofilm fouling in drinking water distribution systems." PLOS Water 1, no. 8 (2022): e0000033. http://dx.doi.org/10.1371/journal.pwat.0000033.

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Discolouration is the greatest cause of customer dissatisfaction with drinking water quality, potentially masking other failures, including microbial issues, which can impact public health and well-being. The theorised association between biofilms (complex microbial communities) and discolouration within drinking water distribution systems (DWDS) was explored, whilst studying the impact and interactions of seasonal temperature variations and hydraulic regime. Transferability of findings to operational DWDS was ensured by using a temperature controlled, full-scale distribution experimental faci
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Dissertations / Theses on the topic "Winter hydraulic failure"

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Van, Rooij Mahaut. "Etude du rougissement hivernal du Douglas : entre températures douces & formation de glace." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2023. http://www.theses.fr/2023UCFA0154.

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Le Douglas, première essence de reboisement en région Auvergne-Rhône-Alpes et seconde au niveau nationale, est d'intérêt économique majeur en France avec 13 millions de plants produits par an. Un phénomène de rougissement - observé 1/3 hivers en France - affecte les jeunes Douglas (< 15 ans), pouvant atteindre jusqu'à 80% de la plantation. Un arbre rougissant n'a pas d'avenir sylvicole et meurt généralement dans l'année suivant le rougissement. Les objectifs de ma thèse ont été de donner une meilleure compréhension du rougissement hivernal à travers l'identification des paramètres climatiqu
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Book chapters on the topic "Winter hydraulic failure"

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Huntley, David, Drew Rotheram-Clarke, Kelvin Sattler, and David Elwood. "Surficial Geology and Geomorphology of the North Slide, Thompson River Valley, British Columbia, Canada: Application of Fundamental Geoscience Information to Interpretations of Geospatial Monitoring Results." In Progress in Landslide Research and Technology. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-44296-4_10.

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AbstractOur study focuses on a slow-moving landslide in the Thompson River valley, south-central British Columbia, Canada, that has posed a hazard to the national railway transportation corridor since 1880. Real-time kinematic global navigation satellite systems, unoccupied aerial vehicles, and satellite synthetic aperture radar interferometry time-series show significant displacement encroaching on railway infrastructure. In this paper, geospatial relationships between landslide distribution and specific terrain features, and the environmental conditions triggering instability are determined
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Conference papers on the topic "Winter hydraulic failure"

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Tounsi, H., J. Rutqvist, and M. Hu. "Coupled THM Modeling of a Heated Borehole Test in Rock Salt." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0356.

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ABSTRACT The very low permeability of intact salt rocks makes them promising media for the geologic disposal of nuclear waste. However, permeating flow can occur through fractures in rock salt. These fractures can be induced by excavation operations that create a localized damage rock zone where brine could migrate towards the excavation, or by strong temperature changes, around a high-heat emitting nuclear waste package, causing compressive (during heating) or tensile (during cooling) thermal stresses that could cause rock salt damage and a potential brine migration towards the heat source. C
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