Œf�ÚŽGŽ��i˜a�j�F
-
Vol�F
31-2Šª
”N�F
1988”N
•Å�F
289-303•Å
’˜ŽÒ�i˜a�j�F
-
ƒ^ƒCƒgƒ‹�i˜a�j�F
-
|
�´˜^�i˜a�j�F
-
|
|
ƒL�[ƒ��[ƒh�i˜a�j�F
-
|
Œf�ÚŽGŽ��i‰p�j�F
COASTAL ENGINEERING IN JAPAN
’˜ŽÒ�i‰p�j�F
Takaaki UDA, Hiroahi TSUTSUMI, Atsushi OMATA
ƒ^ƒCƒgƒ‹�i‰p�j�F
FIELD INVESTIGATION OF SEDIMENT MOVEMENT INTO A SUBMARINE CANYON OFF THE SURUGA COAST
|
�´˜^�i‰p�j�F
Field investigation of sediment movement was conducted in the vicinity of a submarine canyon off the Suruga Coast in Shizuoka Prefecture. Echo sounding and photographing of the sea floor were carried out. Grain size distribution of bed materials and the ratio of mud content were measured through bottom sampling. Furthermore, the alluvium in the submarine canyon was studied through seismic profiling. Sand movement from the nearshore zone into the canyon head was examined by means of the tracer test. The submarine canyon serves as a channel of sediment movement, through which bed materials transported along the coast run off into the deep sea area.
|
|
ƒL�[ƒ��[ƒh�i‰p�j�F
-
|
‹LŽ–‹æ•ª�F
-
‹æ•ª
�@�@�@ˆÏˆõ‰ï˜_•¶�W