The Research Of Dynamic Compaction Method Strengthening Blowing Sand Reclamation Foundation In Beibu Gulf District

With the rapid development of the construction of the Beibu Gulf district, more and more blowing sand reclamation engineering have appeared,the strengthening method of which needs more improvement. This article is based on a dynamic compaction experiment using ABAQUS compared with the results, and gets some conclusions below:1.This article Based on a large number of relevant information and field research. Have set forth a relevance secondly studying current situation of dynamic-compaction applying different soils. Otherwise,for blowing sand,The grain size of Blowing sand is large enough and the permeability is good, which applied to the shake-wave consolidation theory of dynamic-compaction.2.By testing the effect before and after the dynamic compaction experiment. We have discovered the Settlement of the foundation is obvious. So it is efficient that the effect of the dynamic compaction experiment which fulfils the works requirements and outdistances the anticipated targets is effective for blowing sand foundation. 3.The ABAQUS simulation results of the axis-solid model reflects the dynamic stress and displacement in the process of dynamic compaction correctly. the depth of compaction based on the plastic strain are identical with the experiment. this article discuss the fluence of some changes of construction parameters, such as the hammer weight, distance of fall. it is more efficient to increase the fall distance than hammer weight.4.Build a3D-Solid-Contact model. compared the reinforcement effect with hammer’s different shape. The conclusion is that the column curve surface hammer is superior to column plane face hammer.