Experimental research and computer simulation on the dynamics characteristics of soils subjected to the impact load

Zhirong Niu; Guoyun Lu

doi:10.1117/12.839370

25 August 2009 Experimental research and computer simulation on the dynamics characteristics of soils subjected to the impact load

Zhirong Niu, Guoyun Lu

Author Affiliations +

Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737567 (2009) https://doi.org/10.1117/12.839370
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China

Abstract

In this paper, site tests of dynamic compaction and the corresponding computer simulations were carried out to explore the dynamics character of the soils (II-class self-weight collapse loess). The researches give the spatial and temporal distribution of the dynamic stress and their development with time increase. Results show that the impact between Drop hammer and the soil produce the pulse stress in the soil near the contact zone firstly and then the stress will transmit into other part of the soils. The distribution of dynamic stress at some time is that it is greater in the superficial part of ground and decreases gradually with depth increase during the process of impact. With the propagation of the dynamic stress a compacted soils region with the shape of ellipse are formed. The scope of the reinforced area of DCM (dynamic consolidation method) is given.

Citation Download Citation

Zhirong Niu and Guoyun Lu "Experimental research and computer simulation on the dynamics characteristics of soils subjected to the impact load", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737567 (25 August 2009); https://doi.org/10.1117/12.839370

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