【作者】 刘晓磊； 贾永刚； 郑杰文；

【Author】 LIU Xiaolei;JIA Yonggang;ZHENG Jiewen;Key Laboratory of Marine Environment & Ecology,Ministry of Education,Ocean University of China;Key Laboratory of State Oceanic Administration for Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic Administration;

【机构】 中国海洋大学环境科学与工程学院 海洋环境与生态教育部重点实验室； 国家海洋局第一海洋研究所 海洋沉积与环境地质国家海洋局重点实验室；

【摘要】 在波浪周期循环荷载作用下,海床沉积物会发生固结压密、液化流变、侵蚀运移,以及伴随的沉积物成分、结构、物理力学性质与工程地质性质的动态变化过程。一种过程的变化影响并制约着其他过程的变化,在这种相互耦合的动态变化过程中,波浪对海床发挥着周而复始的后期改造作用。本文系统总结了黄河三角洲粉质土沉积物波浪动力响应国内外研究进展,从波浪作用下海床沉积物内部孔压响应、沉积物强度变化过程、沉积物物理性质变化过程、沉积物成分结构分异过程四方面,对波浪在海床粉质土沉积物后期改造过程中发挥的重要作用及其作用机理进行了评述。该文以黄河口细粒土沉积物波浪动力响应研究为立足点,展开论述波一土相互作用物理模型试验、现场观测、数值计算方法的研究成果,以期为河口海岸沉积物动力学的深入研究提供指导作用。更多还原

【Abstract】 Seabed sediments experienced consolidation,liquefaction and fluidization,erosion and deposition under cyclic loading of waves,together with the dynamic variation process of sediment composition,structure,physicalmechanical properties,and engineering geology properties.Single process can affect others,and in the dynamic process of coupling interaction,waves post-reformed the seabed sediments in cycles.This paper summarized the domestic and international research progress of sediment dynamic responses to waves systematically,and discussed the critical role and mechanism of waves in the post reformation of silty sediments from the aspects of pore water pressure responses of seabed sediments,variation of sediment strength,physical-mechanical properties,and sediment composition and structure.Taking silty sediment dynamics to waves in Yellow River delta as foothold,findings of physical modeling experiment,in situ observation,and mathematical calculation methods on wave-soil interaction was demonstrated in detail to provide guidance to further study estuarine and coastal sediment dynamics.更多还原