Slope Stability of an Earthen Levee Strengthened by HPTRM under Turbulent Overtopping Conditions
High performance turf reinforcement mat (HPTRM) is one of the most advanced flexible armoring technologies for severe erosion challenges. The effect of turbulence on the slope stability of an earthen levee strengthened by high performance turf reinforcement mat (HPTRM) is investigated in this study for combined storm surge and wave overtopping conditions. The results show that turbulence has strong influence on the slope stability during the combined storm surge and wave overtopping conditions. Among the surge height, peak wave force and turbulent force. The turbulent force has the ability to stabilize the earthen levee at the large wave force the turbulent force has strongest effect on the FS. The surge storm acts as an independent force on the slope stability of the earthen levee. It just adds to the effects of the turbulent force and wave force on the slope stability of HPTRM strengthened levee.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1100599Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1789
 Y. Pan, L. Li, F. Amini, and C. P. Kuang, “Full scale HPTRM strengthened levee testing under combined wave and surge overtopping conditions: overtopping hydraulics, shear stress and erosion analysis,” Journal of Coastal Research, vol. 29, pp. 182-200, 2013.
 G. L. Sills, N. D. Vroman, R. E. Wahl, and N. T. Schwanz, “Overview of New Orleans levee failures: Lessons learned and their impact on national levee design and assessment,” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, vol. 134, pp. 556-565, 2008.
 J. Ubilla, T. Abdoun, I. Sasanakul, M. Sharp, S. Steedman, W. Vanadit- Ellis, and T. Zimmie, “New Orleans levee system performance during Hurricane Katrina: London avenue and Orleans canal south,” Journal of Geotechnical and Geoenvironmental Engineering, ASCE, vol. 134, pp. 668-680, 2008.
 ASCE Hurricane Katrina External Review Panel, The New Orleans Hurricane Protection System: What Went Wrong and Why. American Society of Civil Engineers, Reston, Virginia, 2007, pp. 1-70.
 J. Chatterjee, and F. Amini, “Slope stability analysis of T-wall subjected to Hurricanes loading,” International Journal of Geotechnical Engineering, vol. 5, pp. 103-112, 2011.
 D. Kelley, and R. Thompson, “Comprehensive hurricane levee design: Development of the controlled Overtopping levee design logic,” SAME Technology Transfer Conference and Lower Mississippi Regional Conference, Vicksburg, MS, pp. 70-81, 2008.
 R. Goodrum, “A comparison of sustainability for three levee armoring alternatives,” in Optimizing Sustainability Using Geosynthetics, the 24th Annual GRI conference Proceedings, Dallas, TX, USA, 2011, pp. 40-47.
 Y. Xu, L. Li, and F. Amini, “Slope stability analysis of earthen levee strengthened by high performance turf reinforcement mat under hurricane overtopping flow conditions,” Journal of Geotechnical and Geological Engineering, vol. 30, pp. 893-905, 2012.
 S. A. Hughes, J. M. Shaw, and I. L. Howard, “Earthen levee shear stress estimates for combined wave overtopping and surge overflow,” Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, vo;. 138, pp. 267-273, 2012.
 D. V. Griffiths, and N. Lu, “Unsaturated slope stability analysis with steady infiltration or evaporation using elasto-plastic finite elements,” International Journal of Numerical Analytical Method in Geomechanics, vol. 29, pp. 249–267, 2005.
 D. V. Griffiths, and P. A. Lane, “Slope stability analysis by finite elements,” Geotechnique, vol. 49, pp. 387-403, 1999.