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Performance of Stone Column-Improved Black Cotton Soil: A Consolidation and Strength Analysis
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Performance of Stone Column-Improved Black Cotton Soil: A Consolidation and Strength Analysis
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Journal Article
Performance of Stone Column-Improved Black Cotton Soil: A Consolidation and Strength Analysis
2025
Overview
Stone-column’s are recently garnered popularity being an effective ground-enhancement technique. This study investigates stone-column’s reinforcement impacts of black cotton soil (BCS) upon consolidation & strength characteristics. The laboratory experiments were performed upon BCS specimens reinforced with three various diameters (50 mm, 75 mm, & 100 mm) of stone-column’s and four slenderness ratios (l/d = 3, 4, 5, and 6). Consolidation characteristics and load-settlement responses of reinforced & unreinforced samples were compared. Results demonstrate how bearing capacity of reinforced soil rises along both column diameter & l/d ratio under end-bearing conditions. Furthermore, key geotechnical parameters which are compressibility coefficient (a v ), void ratio (e), coefficient of consolidation (C v ), volume change index (m v ), & permeability (k) are significantly affected by stone-column geometry. The findings confirm the efficacy of end-bearing stone columns in improving loading-carrying capacity and expediting consolidation in BCS, underscoring their suitability for ground stabilization in expansive soils.
Publisher
IOP Publishing
