Current research on deep-sea gas-bearing energy soils primarily focuses on soils with small air bubbles in a relatively stable state. Sinusoidal waves are commonly used in experiments to simulate seismic waves. Therefore

the authors propose a method to control bubble size and content

converting the acceleration time-history of seismic waves into stress time-history curves to replace sinusoidal waves. Dynamic triaxial tests are conducted to investigate the dynamic characteristics of various components of gas- bearing soils under seismic condition. The experiments show that under seismic loading

the failure modes of gas-bearing soils vary with confining pressure

including compression and tension failures. Different clay contents exhibit both strain failure and liquefaction failure. Higher clay content results in decreased stiffness and shear strength

but increased plastic deformation capacity of gas-bearing soils. Effective confining pressure significantly impacts gas-bearing soils. As saturation decreases

dynamic strength of soils diminishes

and the influence of effective confining pressure becomes more pronounced.