The Experts below are selected from a list of 303 Experts worldwide ranked by ideXlab platform

Andrzej Leśniak - One of the best experts on this subject based on the ideXlab platform.

Krzysztof Krawiec - One of the best experts on this subject based on the ideXlab platform.

Magdalena Habrat - One of the best experts on this subject based on the ideXlab platform.

  • a decision support system for emergency flood Embankment Stability
    International Conference on Conceptual Structures, 2015
    Co-Authors: Magdalena Habrat, Michal Lupa, Monika Chuchro, Andrzej Leśniak
    Abstract:

    Abstract This article presents a concept of decision support system for emergency flood Embankment Stability. The proposed methodology is based on the analysis of data from both a flood em-bankment measurement network and generated through numerical modeling. Decisions about the risk of Embankment failure are made based on this analysis. The authors present both the general concept of the system as well as a preliminary detailed description of the system components.

  • ICCS - A Decision Support System for Emergency Flood Embankment Stability
    Procedia Computer Science, 2015
    Co-Authors: Magdalena Habrat, Michal Lupa, Monika Chuchro, Andrzej Leśniak
    Abstract:

    Abstract This article presents a concept of decision support system for emergency flood Embankment Stability. The proposed methodology is based on the analysis of data from both a flood em-bankment measurement network and generated through numerical modeling. Decisions about the risk of Embankment failure are made based on this analysis. The authors present both the general concept of the system as well as a preliminary detailed description of the system components.

R. Kerry Rowe - One of the best experts on this subject based on the ideXlab platform.

  • Geosynthetic reinforced column supported Embankments and the role of ground improvement installation effects
    Canadian Geotechnical Journal, 2018
    Co-Authors: Daniel King, R. Kerry Rowe, Abdelmalek Bouazza, Joel Gniel, Ha H. Bui
    Abstract:

    For geosynthetic reinforced column supported Embankments (GRCSE) supporting a high Embankment, lateral forces associated with lateral sliding and Embankment Stability often govern the acceptability...

  • Behaviour of reinforced Embankments on soft rate-sensitive soils
    Géotechnique, 2002
    Co-Authors: R. Kerry Rowe
    Abstract:

    The behaviour of reinforced Embankments constructed over rate-sensitive soft foundation soils is studied. Factors such as the viscoplastic properties and hydraulic conductivity of the soil, reinforcement stiffness and construction rate are examined. The time-dependent responses of excess pore pressures, reinforcement strains and foundation deformations are investigated. The short-term Embankment Stability is of particular interest. The construction of reinforced Embankments to the height determined based on a limit equilibrium design is simulated to examine the assumptions made in the conventional undrained analysis. It is shown that creep and stress-relaxation of viscoplastic soils after the end of Embankment construction may be significant for rate-sensitive soils. The Embankment Stability is shown to be critical during creep and stress-relaxation of foundation soils after construction. The undrained shear strength measured in laboratory triaxial tests using currently recommended strain rates without an...

  • Combined effects of reinforcement and prefabricated vertical drains on Embankment performance
    Canadian Geotechnical Journal, 2001
    Co-Authors: R. Kerry Rowe
    Abstract:

    The behaviour of geosynthetic-reinforced Embankments constructed over soft cohesive soils installed with prefabricated vertical drains (PVDs) is investigated by numerically examining an Embankment constructed over different foundation soils. The partial consolidation during Embankment construction, the consequent shear strength gain of the foundation soil, and the effect of the use of reinforcement on the mobilization of shear strength are examined. It is shown that the combined use of reinforcement and PVDs can significantly increase Embankment Stability and potentially allow the rapid construction of higher Embankments than could be achieved with either method of soil improvement alone. Construction rate and spacing of PVDs can significantly affect the degree of consolidation at the end of construction and the Stability of the Embankment. For the situation examined, the effect of well resistance of typical vertical drains is insignificant. A relatively simple method for calculating the degree of consolidation and the strength gain of the foundation soil during construction is evaluated based on finite element results and is shown to be reasonably conservative. A design procedure is proposed to combine the design of reinforcement and PVDs.Key words: soft clay, prefabricated vertical drain, reinforcement, Embankment Stability, consolidation, strength gain.

  • The Stability of Embankments reinforced with steel
    Canadian Geotechnical Journal, 1993
    Co-Authors: R. Kerry Rowe, Brian L.j. Mylleville
    Abstract:

    The undrained behaviour of Embankments constructed on soft cohesive deposits is examined for the case where the Embankment is reinforced using steel strips. A finite-element analysis that considers plastic failure of the fill and the foundation, pullout of steel strips, and potential yield of the reinforcement is used to demonstrate how steel reinforcement can improve Embankment Stability. The effect of strip spacing on the mode of failure and Embankment Stability is examined for a range of soil strength profiles that involve an increase in undrained shear strength with depth. A simple approach for the analysis of steel-reinforced Embankments is proposed and illustrated by means of a worked example. A design based on these simple considerations of bearing capacity and limit equilibrium is then checked against the results of a full finite-element analysis of the problem and found to be slightly conservative. Key words : reinforcement, steel strips, finite element, limit equilibrium, soft soil, undrained st...

Xinyu Yang - One of the best experts on this subject based on the ideXlab platform.

  • Stability analysis of stone column-supported and geosynthetic-reinforced Embankments on soft ground
    Geotextiles and Geomembranes, 2020
    Co-Authors: Gang Zheng, Haizuo Zhou, Shun Wang, Jiapeng Zhao, Xinyu Yang
    Abstract:

    Abstract This study focuses on the Stability of stone column-supported and geosynthetic-reinforced Embankments on soft soil. An upper-bound limit state plasticity failure discretization scheme (known as discontinuity layout optimization (DLO)), which determines the Embankment Stability without pre-assuming a slip surface, is used. The relationships between the Stability of stone column-supported and geosynthetic-reinforced Embankments and various influencing parameters, including the soil strength, geometric configuration, reinforcement strength, and area replacement ratio, are analysed. It is found that geosynthetics provide a significant contribution to Embankment Stability. Two failure mechanisms of geosynthetics (i.e., rupture failure and bond failure) are revealed and the effect of geosynthetics on Embankment Stability is governed by the failure mode. The application of stone columns mitigates the risk of geosynthetic failure. To provide an analytical solution for primary design in engineering practice, an approach based on the limit equilibrium method is proposed. Validations are performed with the DLO solution to demonstrate the accuracy and reliability of the developed analytical approach.