DONG Hao-gang, Zhang Wei-ming, Jia Yong-gang, Wang Hong-lei. TRANSFORMATION OF GRANULAR COMPOSITION AND MICROSTRUCTURE OF SILT DUE TO CYCLIC LOADING IN YELLOW RIVER ESTUARY,CHINA[J]. Marine Geology & Quaternary Geology, 2006, 26(3): 133-141.
Citation: DONG Hao-gang, Zhang Wei-ming, Jia Yong-gang, Wang Hong-lei. TRANSFORMATION OF GRANULAR COMPOSITION AND MICROSTRUCTURE OF SILT DUE TO CYCLIC LOADING IN YELLOW RIVER ESTUARY,CHINA[J]. Marine Geology & Quaternary Geology, 2006, 26(3): 133-141.
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TRANSFORMATION OF GRANULAR COMPOSITION AND MICROSTRUCTURE OF SILT DUE TO CYCLIC LOADING IN YELLOW RIVER ESTUARY,CHINA

  • 1 Institute of Environmental Science & Engineering, Ocean University of China, Qingdao 266003, China;

  • 2 Shengli Institute of Survey and Design, Dongying 257026, China;

  • 3 The Seventh Institute of Exploration, Linyi 262508, China

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  • Received Date: November 22, 2005
  • Revised Date: December 25, 2005
    Graphical Abstract
    • Abstract
  • From the tidal flat of the Yellow River Estuary,each undisturbed sample of 1 m long was collected before and after cyclic vibrating. The microstructure has been observed with SEM and the transformation characteristics of the granularity have been contrasted at an interval of 10 cm.The results revealed that granularity direction strengthened and the long axes are in a perpendicular trend in general;fine grains gathered in certain areas above 40 cm depth,so the asymmetry coefficient rised and the gradation became better.The granularity change of soil from 40 to 70 cm depth was quite on the contrary;changes below 70 cm depth were not so obvious.The reason may be due to repeat liquefaction of seabed and the variations of seepage field that were induced by cyclic vibration.
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    • References (13)
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