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<p>Mangalore International Airport, situated in Karnataka, is among the few airports in India that feature a tabletop runway, surrounded by steep slopes. To facilitate runway expansion and create a leveled platform within this challenging geological and geotechnical profile, reinforced soil structures with flexible facings were adopted. The solution implemented for a fill slope with heights varying from 40 to 50&#xa0;m includes reinforced soil structures at both top and bottom, along with an intermediate reinforced fill slope. Due to the considerable height of the fill slope, composite geometry, adverse geological profiles, and climatic conditions, finite element analysis was adopted for a comprehensive understanding of movements and deformations, considering all inherent challenges. This paper presents parametric studies performed on reinforced soil displacements by varying the length, vertical spacing of reinforcements, and stiffness of facia to understand the behavior of such a huge composite reinforced fill slope.</p>

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Influence of Length and Spacing of Primary Reinforcement and Stiffness of Facia on Reinforced Soil Structure Movements in the Runway Expansion at Mangalore International Airport, India

  • 期刊论文

  • 发表日期：

    2025年6月19日

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  • Minimol Korulla,
  • K. S. Beena,
  • Padmaja Gurram,
  • Saket Sharan

摘要

Mangalore International Airport, situated in Karnataka, is among the few airports in India that feature a tabletop runway, surrounded by steep slopes. To facilitate runway expansion and create a leveled platform within this challenging geological and geotechnical profile, reinforced soil structures with flexible facings were adopted. The solution implemented for a fill slope with heights varying from 40 to 50 m includes reinforced soil structures at both top and bottom, along with an intermediate reinforced fill slope. Due to the considerable height of the fill slope, composite geometry, adverse geological profiles, and climatic conditions, finite element analysis was adopted for a comprehensive understanding of movements and deformations, considering all inherent challenges. This paper presents parametric studies performed on reinforced soil displacements by varying the length, vertical spacing of reinforcements, and stiffness of facia to understand the behavior of such a huge composite reinforced fill slope.