Searched for: subject%3A%22embankments%22
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Mangraviti, Viviana (author), Flessati, L. (author), di Prisco, Claudio (author)
Piled foundations are commonly employed to reduce settlements of artificial earth embankments on soft soil strata and geosynthetic reinforcements are installed at the embankment base to increase pile spacing and reduce construction costs. Despite the well-documented effectiveness of this technique, the mechanical processes, developing during...
journal article 2023
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den Heijer, F. (author), Rijke, Jeroen (author), Bosch-Rekveldt, M.G.C. (author), de Leeuw, Annemargreet (author), Barciela Rial, M. (author)
Flood defences are in practice often multi-used, multi-managed and multi-financed. Flood defence asset management contains technical, organizational and spatial complex issues involving multiple organizations. In the literature, little attention has been given to the conditions for successful cooperation between organizations in flood defence...
journal article 2023
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Wang, Heng (author), Chen, Feng (author), Shiau, Jim (author), Dias, Daniel (author), Lai, F. (author), Huang, Jianhua (author)
Cement-based columns in combination with geosynthetic reinforcement is a well-established soft ground improvement technique to enhance embankment stability. This paper aims to present a finite-element (FE) study based on a case history of a geosynthetic-reinforced column-supported (GRCS) embankment over soft soil. In this study, the columns...
journal article 2023
document
Mangraviti, Viviana (author), Flessati, L. (author), di Prisco, Claudio (author)
Piled foundations are commonly employed to reduce settlements in artificial earth embankments founded on soft soil strata. To limit the number of piles and, consequently, construction costs, popular is the use of geosynthetic reinforcements laid at the embankment base. Nowadays, the complex interaction between geosynthetics, piles and soil is...
journal article 2023
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Chumyen, P. (author), Connolly, D. P. (author), Woodward, P. K. (author), Markine, V.L. (author)
Railway track transitions are zones where there is an abrupt change in the track-ground structure. They are often the location of rapid track deterioration, which means more frequent track maintenance is needed compared to plain line tracks. With the aim of reducing maintenance, modern transition zone designs use tapered stiffness earthwork...
journal article 2023
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Lengkeek, H.J. (author)
The Netherlands is inherently challenged by water, as a large part of the country lies below sea level and several major rivers in North-western Europe cross the country. The most prevalent form of protection from coastal and river floods in the Netherlands includes approximately 22,000 km of earthen dikes, of which 3800 km are primary flood...
doctoral thesis 2022
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Rikkert, S.J.H. (author), Kok, M. (author), Lendering, K.T. (author), Jongejan, R.B. (author)
Flood prone areas are often protected against flooding by an extensive network of flood defenses. To ensure their structural integrity, these flood defenses are periodically assessed. Many levees have been functioning well for decades, and have survived several relatively high hydraulic loads within their lifetime. However, information on...
journal article 2022
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Guo, Leicheng (author), Zhu, C. (author), Xu, Fan (author), Xie, Weiming (author), van der Wegen, Mick (author), Townend, Ian (author), Wang, Zhengbing (author), He, Qing (author)
Reclamation of low-lying tidal flats and floodplains adjacent to present shorelines has been implemented worldwide for both coastal defense and development. While it is technically feasible to monitor the short-term impact of tidal flat embankments, it is challenging to identify long-term and cumulative morphodynamic impact, particularly...
journal article 2022
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Stipanovic, Irina (author), Bukhsh, Zaharah Allah (author), Reale, Cormac (author), Gavin, Kenneth (author)
Aged earthworks constitute a major proportion of European rail infrastructures, the re-placement and remediation of which poses a serious problem. Considering the scale of the networks involved, it is infeasible both in terms of track downtime and money to replace all of these assets. It is, therefore, imperative to develop a rational means...
journal article 2021
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de Gast, T. (author), Vardon, P.J. (author), Hicks, M.A. (author)
Soil spatial variability has a significant impact on the reliability of geotechnical structures. In particular, the horizontal variability is important for linear infrastructure, which has only limited vertical height and width, but extensive length. Due to depositional and geological processes, the variability is often substantially...
journal article 2021
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Xie, Dongfeng (author), Wang, Zhengbing (author), van der Wegen, Mick (author), Huang, Junbao (author)
Many alluvial estuaries worldwide include an inside bar system, a large sediment deposit deeply stretched into the estuary. A good example of such a system is the large sediment deposit in the Qiantang Estuary, China. Its length and height reach 130 km and 10 m, respectively. Bathymetrical comparison reveals that the large bar has moved seaward...
journal article 2021
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Curran, A.N. (author)
Flood risk analysis focused on small sections or regions of embanked systems ignores the dy-namics of large-scale floods through time and space. Resulting measures are oftentimes inef-ficient due to an over estimation of risk or be-cause they simply transfer risk downstream due to increased localised protection upstream. This present work...
doctoral thesis 2020
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de Gast, T. (author), Hicks, M.A. (author), van den Eijnden, A.P. (author), Vardon, P.J. (author)
A reliability-based analysis framework, accounting for uncertainty arising from the spatial variability of soil properties, has been validated for the controlled, well-instrumented slope failure of an historic dyke in the Netherlands. Using soil property statistics derived from the results of laboratory and cone penetration test (CPT) data for...
journal article 2020
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Gebert, J. (author), Groengroeft, Alexander (author)
Purpose: Climate change necessitates heightening and strengthening of dikes, requiring large volumes of suitable soil. This study investigated soil ripening and long-term development of hydraulic behaviour of a dike constructed from slightly contaminated, partially dewatered dredged material from the Port of Hamburg under realistic conditions...
journal article 2019
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Kovacevic, Meho Saša (author), Bacic, Mario (author), Stipanovic, Irina (author), Gavin, Kenneth (author)
In the current economic climate, it is crucial to optimize the use of all resources regarding railway infrastructure maintenance. In this paper, a multi-attribute decision support framework is applied to categorize railway embankments in order to prioritize maintenance activities. The paper describes a methodology to first determine the...
journal article 2019
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Reale, C. (author), Gavin, Kenneth (author), Martinovic, Karlo (author)
Many railway embankments across Europe were constructed over 150 years ago. These embankments were not subject to rigorous design practice but instead were crudely constructed using end tipping techniques. As a result, the majority of these embankments are overly steep and far in excess of the design angles recommended in Eurocode 7. Over recent...
conference paper 2018
document
Li, Z. (author), Ye, Wei (author), Marence, Miroslav (author), Bricker, J.D. (author)
Climate change with extreme hydrological conditions, such as drought and flood, bring new challenges to seepage behavior and the stability of earthfill dams. Taking a drought-stricken earthfill dam of China as an example, the influence of drought-flood cycles on dam seepage behavior is analyzed. This paper includes a clay sample laboratory...
journal article 2018
document
Liu, K. (author), Vardon, P.J. (author), Hicks, M.A. (author), Arnold, P. (author)
The stability of most earth embankments is strongly influenced by the water content of the soil. The water content directly influences the suction or pore pressure in the soil, as well as the mass of material, thereby affecting the stress state and strength, and leading to changes in the stability. These aspects are coupled by the so-called soil...
journal article 2017
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Reale, C. (author), Xue, J. (author), Gavin, Kenneth (author)
Many engineered and natural slopes have complex geometries and are multi-layered. For these slopes traditional stability analyses will tend to predict critical failure surfaces in layers with the lowest mean strength. A move toward probabilistic analyses allows a designer to account for uncertainties with respect to input parameters that...
journal article 2016
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Rui, Rui (author), van Tol, A.F. (author), Xia, YY (author), van Eekelen, SJM (author), Hu, G (author)
A trapdoor system has frequently been used to study soil arching and its development in recent years. The load transfer in the fill of piled embankments is very similar to a trapdoor system with multiple trapdoors. There are multiple arching models described in different standards and guidelines for piled embankments that can be subdivided into...
journal article 2016
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