Research of the Dynamic Compaction Effective Reinforcement Depth of Cohesionless Soil

Abstract:

The effective reinforcement depth is one of the most important parameters of dynamic compaction method design and construction, so far it is still lack of in-depth theoretical study. In this paper, combined with the field test, FLAC3D was used to do the numerical simulation of dynamic compaction reinforcement to cohesionless soil. By the simulation, this paper analyzed the factors which may influence the effective reinforcement depth, such as the hammers weight, drop distance, base area, and the soil parameters. The orthogonal design method was used to analyze the soil parameters sensitivity to the effective reinforcement depth. Combined with the results of numerical analysis and the traditional empirical formulae, the effective reinforcement depth calculation formula was established for cohesionless soil. Engineering verification shows that, the results estimated by the formula is reliable, and can provide certain reference for the future engineering.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 450-458
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.450
• Online since: August 2013
• Authors: Xiu Guang Song, Yang Yang, Qing Dong Wu, Zhi Dong Zhou
• Keywords: Cohesionless Soil, Dynamic Compaction, Effective Reinforcement Depth, Field Test, Numerical Simulation

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