Soil Engineering and Foundation

›› 2016, Vol. 30 ›› Issue (4): 520-523.

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Dynamic Shear Modulus and Damping Ratio of Soft Soils of Tangshan Caofeidian Coastal Area

HAO Bin1, ZHAO Yucheng1, LIU Zhenyan2, LI Zhanling2, XIE Yang1, ZHANG Xiaoxing1   

  1. (1.College of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043;
    2.Hebei Electric Power Design & Research Institute, Shijiazhuang, 050031)
  • Received:2015-12-22 Online:2016-08-20 Published:2016-08-26

Abstract: The soil cohesive soil samples were collected from a near shore wind mill farm project in the coastal area of Caofeidian, Tangshan City. The dynamic soil modulus and damping ratios were tested through GDS dynamic triaxial test by simulating the cyclic wave actions. The effect of dynamic stress magnitude and confining pressures on the dynamic modulus and damping ratios were studied. The results indicate that the dynamic shear modulus and damping ratios increase with the cyclic stress magnitude and confining pressures. The initial dynamic shear modulus of the costal soft soils in Caofeidian area are also obtained.

Key words: Costal Soft Soils, Dynamic Triaxial Shear Tests, Dynamic Shear Modulus, Damping Ratio, Cyclic Wave Loadings