A STATE-OF-THE-ART REVIEW ON THE COMPOSITE SYSTEM OF GRANULAR MATTRESS OVER STONE COLUMNS
Oral Presentation
Paper ID : 1187-ICASGE
Authors
1masoura university
2Mansoura university
Abstract
The granular mattress (GM) layer plays a vital role in enhancing the performance of stone column-reinforced ground by improving load distribution, minimizing differential settlement, and increasing overall system stability. This research examines the impacts of granular mattress layers on stone columns in soft soils, with an emphasis on important characteristics such as thickness, material properties, and interaction of mechanisms. The influence on stress transfer, lateral confinement, and bearing capacity is analyzed through analytical studies, numerical modeling, and experimental findings. The review emphasizes the importance of optimizing granular mattress design to maximize stone column performance. This review serves as a foundation for future research and practical applications in geotechnical engineering, particularly in soft ground stabilization projects. Stone columns have long been recognized as an effective ground improvement technique, particularly for enhancing the engineering properties of soft clay soils The installation process, which involves vibration-assisted insertion of granular materials, improves soil stiffness and drainage capacity, making it a widely used method in geotechnical engineering
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