Application Research on Dynamic Compaction Replacement Pier Foundation Treatment Methods

Abstract:

The dynamic compacted replacement pier technique is a new ground-treatment technology, which developed from the dynamic consolidation method. It can be used for the improvement in high-saturated silts and soft plastic to flow plastic clays, which cannot be treated using dynamic compaction method. T his new approach has many advantages, such as its simple equipment, significant reinforcing effects, construction time-saving, low-cost, no requirement of dewatering, and etc. In this paper, combined with engineering examples, according to analysis and evaluation of the monitoring results, it is feasible to adopt dynamic compaction replacement pier in uneven thickness hard plastic silt-clay foundation. Concrete-gravel dynamic compaction replacement pie can enhance the bearing capacity of pier and compound foundation. It provides a practical basis to expand the application scope of dynamic compaction replacement foundation treatment and enrich this technology.

• Periodical: Applied Mechanics and Materials (Volumes 353-356)
• Pages: 482-485
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.353-356.482
• Online since: August 2013
• Authors: Yong Shou Yang, Bin Xin Li
• Keywords: Dynamic Consolidation Pier, Foundation Treatment, Reinforcement Mechanism of the Effective Reinforcement Depth

References

[1] China construction science research institute building foundation treatment technology specification (JGJ79-2002) Beijing: China building industry press, 2002. (In Chinese).

[2] Xu zhijun editor. A foundation is improved with the dynamic compaction and dynamic compaction replacement method. Beijing: mechanical industry press, 2004. (In Chinese).

[3] Tang Dingyi The dynamic compaction technology to reinforce mechanism and quality detection research. Master's degree thesis of hunan university, changsha, 2002 (In Chinese).