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Acta Mechanica Solida Sinica

, Volume 21, Issue 4, pp 347–353 | Cite as

Dynamic Characteristics of Soils Subject to Impact Loadings

  • Zhirong Niu
  • Guoyun Lu
  • Dongzuo Cheng
Article

Abstract

The dynamic properties of soil under impact loads are studied experimentally and numerically. By analyzing the microstructural photos of soils with and without impact, it is shown that impact loads can destroy the original structures in the compact area, where the soil grains are rearranged regularly and form the compact whirlpool structure. Simultaneously, the dynamic impact process of soil is simulated by using the software of Ls-dyna. The time-dependent distribution of the dynamic stress and density is obtained in the soil. Furthermore, the simulation results are consistent with the experimental results. The reinforcement mechanism and the rule of dynamic compaction of soils due to impact load are also elucidated.

Key Words

dynamic destruction impact soil dynamic consolidation 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2008

Authors and Affiliations

  • Zhirong Niu
    • 1
  • Guoyun Lu
    • 2
  • Dongzuo Cheng
    • 3
  1. 1.College of Civil Engineering and ArchitectureJiaxing UniversityJiaxing, ZhejiangChina
  2. 2.Institute of Application MechanicsTaiyuan University of TechnologyShanxi, TaiyuanChina
  3. 3.Taiyuan UniversityShanxi, TaiyuanChina

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