Œf�ÚŽGŽ��i˜a�j�F
-
Vol�F
32-1Šª
”N�F
1989”N
•Å�F
103-112•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
Takujiro MIYAMOTO, Shigeru YOSHINAGA, Fujio SOGA, Kenkichi SHIMIZU, Ryoichi KAWAMATA, Mineo SATO
ƒ^ƒCƒgƒ‹�i‰p�j�F
SEISMIC PROSPECTING METHOD APPLIED TO THE DETECTION OF OFFSHORE BREAKWATER UNITS SETTILING IN THE SEABED
|
�´˜^�i‰p�j�F
In solving a problem of offshore breakwater subsidence, it is important to investigate the shape of an existing breakwater whose crown has been repeatedly raised in the past. In this context, a series of observations were performed at the west coast of Niigata from 1984 to 1985, where seismic prospecting provided a reasonable estimate of breakwater cross sections under the water level as well as under the sea bottom.
|
|
ƒL�[ƒ��[ƒh�i‰p�j�F
-
|
‹LŽ–‹æ•ª�F
-
‹æ•ª
�@�@�@ˆÏˆõ‰ï˜_•¶�W