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Field studies of the effectiveness of dynamic compaction in coastal reclamation areas

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Abstract

The paper reports a study into the dynamic compaction of very coarse grained material placed over soft clays in a coastal reclamation area. It was found that higher energy levels are more effective than low impact energy levels, which can result in ground heave between impact points. Spectral analysis of surface wave (SASW) tests and plate load tests confirmed the effect of the dynamic compaction extended to at least 10 m, with no obvious weak layers identified. Following dynamic compaction, the allowable bearing capacity was >120 kPa.

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Acknowledgments

The authors wish to thank J.L. Zhan, J.L. Yang, and X.C. Cheng for their assistance in field testing work. Much of the work described in this paper was supported by the National Natural Science Foundation of China under Grant No. 50708079, the Research Fund for the Doctoral Program of Higher Education under Grant No. 20070247041, Shanghai Twilight Program under Grant No. 2007CG23, the Programs for Young Excellent Talents and Outstanding Young Teachers in Tongji University. The authors would like to greatly acknowledge all these financial supports and express the most sincere gratitude.

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Authors and Affiliations

  1. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Department of Geotechnical Engineering, Tongji University, Si Ping Road 1239, 200092, Shanghai, China

    Shi-Jin Feng & Ke Tan

  2. Shanghai Shenyuan Geotechnical Engineering Co., Ltd, 200011, Shanghai, China

    Wei-Hou Shui & Li-Jun He

  3. Tongke College, Tongji University, 200092, Shanghai, China

    Li-Ya Gao

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  1. Shi-Jin Feng
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  2. Wei-Hou Shui
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  5. Ke Tan
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Correspondence to Shi-Jin Feng.

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Feng, SJ., Shui, WH., Gao, LY. et al. Field studies of the effectiveness of dynamic compaction in coastal reclamation areas. Bull Eng Geol Environ 69, 129–136 (2010). https://doi.org/10.1007/s10064-009-0242-x

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  • DOI: https://doi.org/10.1007/s10064-009-0242-x

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