THE SETTLEMENT, HARDNESS AND LIQUEFACTION OF SAND BEDS DUE TO FLUCTUATING WATER PRESSURE

Proceedings of the International Conference on Coastal Engineering

Toshihiko Yamashita⁴  Kenji Yano²  Masaki Niiyama⁴  Takao Akutu³  Takaaki Minamimura¹ 

[1] Obayashi Corporation;Depertment of Marine science and Technology, Hokkaido Tokai University;Hokkaido Development Bureau;Laboratory of Coastal and Offshore Engineering, Division of Environment and Resources Engineering, Hokkaido University

关键词: water pressure;    pressure fluctuation;    liquefaction;    bed;   

DOI  :  10.9753/icce.v26.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

The degree of sand beds compaction affects the accumulation and erosion of shorelines, and the popuration of creatures which live in sandy beach. The properties of the settlement, hardness and liquefaction of sand beds due to fluctuating water pressure were experimentally studied. The settlement of a sand bed was accelerated by liquefaction .The thickness of liquefaction layer which is estimated from the measured values of excess pore water pressure agreed well with one from the measured values of the rate of settlement. The hardness of sand bed was determined only by void ratio independent of liquefaction or non-liquefaction beds.

【 授权许可】

Unknown