振动荷载作用下海底浅层原状土的强度变化

Strength Change of Undisturbed Clay in Subsea Shallow Layer Under the Action of Vibration Load

本文针对渤海海底两种典型的原状淤泥质粘土及粉质粘土,研究了振动荷载作用下土强度特性的基本变化关系,建议了确定强度衰减系数的方法。工程中对海底相近土层,可参考本文研究结果对其振动荷载作用下的强度变化进行初步定量分析。

Based on the two typical kinds of undisturbed silt clay and silty clay in the Bohai subsea, this paper studies the essential change relationship of the clay strength characteristic under the action of vibration load and proposes the method to determine strength attenuation coefficient. The study results in this paper provide a reference for preliminary quantitative analysis of strength change of similar subsea clay layer in offshore engineering under the action of vibration load.