Test Research on Dynamic Shear Modulus and Damping Ratio of Dredger Fill in Tianjin Binhai New Area

Dynamic modulus and damping ratio of dredger fill in Tianjin Binhai New Area were tested while the seismic loading was simulated through dynamic triaxial testing equipment.The impact of frequency and confining pressure on dynamic modulus and damping ratio was explored.Studying results show that the dynamic modulus and damping ratio of dredger fill in Tianjin Binhai New Area improved with the increment of frequency and confining pressure.The maximum dynamic shear modulus of this kind of dredger fill was obtained which can give reference on seismic safety evaluation in geotechnical and other civil engineering project.