Effective depth of dynamic compaction in embankment built with soils and rocks

Abstract

Effective depth of dynamic compaction was summarized, and the advantages of dynamic compaction technology of effective depth were analyzed elaborately. The formula determining the reinforcement depth was deduced by using dimensional analysis method. The influential factors of hammer weight, hammer area, dry density of filling materials and filling materials types were comprehensively investigated. The formula of effective depth was established based on the definition of the dimensions analysis. Based on experimental results of in-situ dynamic compaction, the technology was applied to highway embankment filled with soils and rocks. From the comparison between the theoretical calculations and the experimental results, it is found that the theoretical results using the developed formula are close to experimental results.

Keywords

dynamic compaction / effective depth / in-situ test / dimensional analysis

References

[1] KongL.-w., YuanJ.-xin.. Study on surface contact stress and settlement properties during dynamic consolidation [J]. Chinese Journal of Geotechnical Engineering, 1998, 20(2): 86-92

[2] JiangP., LiR.-q., KongD.-fang.. Numerical analysis of large deformation impact and collision properties during dynamic compaction [J]. Chinese Journal of Geotechnical Engineering, 2000, 22(2): 222-226

[3] TongX.-d., JiangY.-s., GongW.-ming.. A new method for dynamic contact analysis [J]. Engineering Mechanics, 2000, 17(6): 82-86

[4] YangX.-l., LiL., YinJ.-hua.. Seismic and static stability analysis for rock slopes by a kinematical approach [J]. Geotechnique, 2004, 54(8): 543-549

[5] ZouJ.-f., LiL., YangX.-li.. Study on the ultimate pullout force of pre-stressed cable based on nonlinear Mohr-Coulomb failure criterion [J]. Chinese Journal of Geotechnical Engineering, 2007, 27(1): 107-111

[6] YangX.-l., LiL., YinJ.-hua.. Stability analysis of rock slopes with a modified Hoek-Brown failure criterion [J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2004, 28(2): 181-190

[7] ItoH., KomineH.. Dynamic compaction properties of bentonite-based materials [J]. Engineering Geology, 2008, 98(3/4): 133-143

[8] YangX.-l., ZouJ.-feng.. Stability factors for rock slopes subjected to pore water pressure based on the Hoek-Brown failure criterion [J]. International Journal of Rock Mechanics and Mining Sciences, 2006, 43(7): 1146-1152

[9] LuoH., ZouJ.-f., LiL.. Test study on soil dynamic stress diffusion and deformation during dynamic compaction in roadbed primed with large granule red sandstone [J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(s1): 2701-2706

[10] BoltachevG. S., VolkovN. B., IvanovV. V., ParaninS. N.. Dynamic compaction model for a granular medium [J]. Journal of Applied Mechanics and Technical Physics, 2008, 49(2): 336-339

[11] HwangJ. H., TuT. Y.. Ground vibration due to dynamic compaction [J]. Soil Dynamics and Earthquake Engineering, 2006, 26(5): 337-346

[12] YangX.-li.. Seismic displacement of rock slopes with nonlinear Hoek-Brown failure criterion [J]. International Journal of Rock Mechanics and Mining Sciences, 2007, 44(6): 948-953

[13] HeC.-m., ZouJ.-f., LiL.. Field tests on measurement of dynamic stress of dynamic compaction [J]. Chinese Journal of Geotechnical Engineering, 2007, 27(4): 628-632

[14] ArsianH., BaykalG., ErtasO.. Influence of tamper weight shape on dynamic compaction [J]. Ground Improvement, 2007, 11(2): 61-66

[15] VoglerT. J., LeeM. Y., GradyD. E.. Static and dynamic compaction of ceramic powders [J]. International Journal of Solids and Structures, 2007, 44(2): 636-658