Experimental Research on Application of Dynamic Compaction for the Treatment of Collapsible Loess Foundation

Abstract:

The experiment on foundation improvement by dynamic compaction in Collapsible Loess foundation of the power plant was made. Before and after the experiment, kinds of in-situ and laboratory tests were performed .Through these tests, the influence of the dynamic compaction on the character of the soil, such as dry density, collapsibility, bearing capacity is analyzed. The effective depth of improvement of foundation is calculated and the conclusion of the efficiency of the foundation treatment by dynamic compaction is made. The choosing of techniques and parameter of the dynamic compaction also is elaborated in the paper, which make an example for other similar construction in the future.

• Periodical: Applied Mechanics and Materials (Volumes 638-640)
• Pages: 441-444
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.638-640.441
• Online since: September 2014
• Authors: Jun Hui Guo*, Hai Jian Sun, Bao Ming Wang
• Keywords: Collapsible Loess, Dynamic Compaction, Foundation Treatment, Standard Penetration Test (SPT), Static Load Test

References

[1] Menard L, Bruise Y. Theoretical and practical aspects of dynamic consolidation[J]. Journal of Geotechnical Engineering, ASCE, 1975, 25(1): 3-18.

[2] GONG Xiao-nan. Manual of Groundwork Treatment（3rd edition）[M]. Beijing: China Architecture and Building Press, 2008. (in Chinese).

[3] NIAN Ting-kai, LI Hong-jiang, YANG Qing etc. Improvement effect of high energy dynamic compaction under complicated geological conditions[J]. Chinese Journal of Geotechnical Engineering, 2009, V31(1): 139-144. (in Chinese).

[4] HE Changming, ZOU Jin-feng, LI Liang. Field tests on measurement of dynamic stress of dynamic compaction[J]. Chinese Journal of Geotechnical Engineering, 2007, V29(4): 628-632 (in Chinese).

[5] HE Wei-min, FAN Jian. evaluation of collapsible loess sub grade treated by dynamic compaction ; 2007(S2)4095-4101(in Chinese).

[6] Yang Tian-lian, Ye Guan-bao. Application research for dynamically high energy level compaction in collapsed loess foundation treatment)[J]. Journal of Yangtze River Scientific Research Institute, 2008, 25(2): 54-57. (in Chinese).

[7] JGJ79-2002 Technical code for ground treatment of buildings[S]. 2002(in Chinese).

[8] GB50025-2004 Specifications for the design of construction in wet and depressive loess areas[S]. 2004(in Chinese).