The process of dynamic compaction is primarily used to achieve __________ in granular soil?

• A. Stability
• B. Densification
• C. Seepage control
• D. Contamination reduction

Answer: (B)

Dynamic compaction is a ground improvement technique specifically designed to increase the density of granular soils. This method involves dropping heavy weights from a significant height onto the soil surface, which transfers energy into the ground. The energy from the impact rearranges the soil particles, effectively reducing the void ratios within the soil mass and leading to increased density.

Densification is crucial because it directly enhances the load-bearing capacity of the soil, decreases its compressibility, and reduces potential settlement issues. The process stimulates rapid consolidation and effectively addresses the distinct challenges presented by loose or unconsolidated granular soils, making them more stable and supportable for structures.

While stability, seepage control, and contamination reduction are important factors in geotechnical engineering, they are not the primary objectives achieved through the process of dynamic compaction. The main goal remains focused on densifying the soil to improve its load-bearing capabilities.