The research on dynamic shear modulus and damping ratio of all kinds of soil

The dynamic shear modulus and damping ratio of soils are the important parameters in soil dynamics characteristics,and also the must parameters in analyzing soil layers and base earthquake response.According to the domestic and overseas researching status and the development on soil dynamic shear modulus and damping ratio,this paper makes a comparative analysis on the advantages and disadvantages of testing in field and testing in laboratory on identifying dynamic shear modulus and damping ratio,summarizes and comments to the domestic and overseas researching results related to dynamic shear modulus and damping ratio of cohesiveless soil,cohesive soil,remolded soil,and other kinds of soil.It points out the existing problems in current research and the problems needed to improve,and puts forward the future developing direction and research ideas on this topic.