饱和黏土动剪切模量和阻尼比研究现状分析

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中图分类号：TU432.1 文献标志码：A 文章编号：1000-0844（2026）01—0001—14

Research status on the dynamic shear modulus and damping ratio of saturated clay

CAI Run¹，WANG Lanmin²，GUO Peng³，PENG Tao¹，WANG Qian 2，4 （1.Chengdu Surveying Geotechnical Research Institute Co.， Ltd.of MCC，Chengdu 610o23，Sichuan，China; 2.Key Laboratory of Loess Earthquake Engineering，CEA，Lanzhou 73Oooo， Gansu，China ; 3.School of Civil Engineering，Southeast University，Nanjing 21l189，Jiangsu，China; 4.Lanzhou Instituteof Seismology，CEA，Lanzhou 73oooo，Gansu，China）

Abstract： With the development of offshore wind power and oil-gas operations，the evaluation of the dynamic stability of marine foundation sites using the dynamic shear modulus and damping ratio of saturated clay has become critical. Recent research has achieved substantial advances in this domain. This study systematically reviews global research on the dynamic shear modulus and damping ratio of saturated clay through consolidation and analysis of prior works.Laboratory testing methods，influencing factors and behavioral patterns，and prediction models are highlighted.Comparative analyses are performed to determine the effects of cyclic tensile stress states and different cyclic stress paths on the dynamic shear modulus and damping ratio of saturated clay. Neural networks are employed to consolidate existing findings. This review provides a strategic direction for future studies on the dynamic stability assessment of marine foundation sites.

Keywords： saturated clay; dynamic shear modulus; damping ratio; influencing factors; prediction model

0 引言

随着海上风电和海洋油气技术的发展，海洋基础的动力安全稳定性对保障上部平台安全作业至关重要。（剩余34403字）