The effectiveness of dynamic compaction under various water levels

Jing-Wen Chen, Fu Cheng Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dynamic compaction is currently regarded as one of the quick but cost-effective method for soil densification to resist the potential of soil liquefaction during earthquake. Most practices and studies reveal the depth of densification is mainly limited by the compaction energy without considering the effect of water table. In this experimental study, the impact performances under both presence and absence of water level without changing the compaction energy were presented. The Single-point Impact Test is developed to perform a series of tests on soils under different water levels and drained conditions. Meanwhile, an automatic cone penetrometer is also developed to evaluate the effectiveness. The boundary effect of soil container used in the test is also discussed. The impact-induced pore pressures and dissipation periods are measured and compared with a field measurement. The relationship between the effective dynamic stresses and corresponding cone resistances in soils is highlighted. The performance of dynamic impacts is evaluated by a term of improvement ratio.

Original languageEnglish
Title of host publicationProceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009
Pages321-328
Number of pages8
DOIs
Publication statusPublished - 2009 Dec 1
Event28th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2009 - Honolulu, HI, United States
Duration: 2009 May 312009 Jun 5

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume7

Other

Other28th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2009
CountryUnited States
CityHonolulu, HI
Period09-05-3109-06-05

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Mechanical Engineering
  • Energy Engineering and Power Technology

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  • Cite this

    Chen, J-W., & Chen, F. C. (2009). The effectiveness of dynamic compaction under various water levels. In Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009 (pp. 321-328). (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 7). https://doi.org/10.1115/OMAE2009-79812