Vol.4-2 |
|
l983年日本海中部地震による住家被害と地盤特性
Effects of Subground Conditions on the Damage to Dwelling Houses in
the Nihonkai Chubu Earthquake of 1983 |
浅田 秋江* ・ 盛合 禧夫* ・ 千葉 則行*
Akie ASADA*, Tomio MORIAI* and Noriyuki CHIBA* |
Abstract
The Nihonkai Chubu Earthquake of May 26, l983 caused severe damage to
dwelling houses in Akita and Aomori Prefectures. Especially in Oga, Wakami
Hachiryu, Noshiro, Ajigasawa and Shariki, l407 houses were totally damaged
and 2622 houses half damaged. Severe damage of the houses was caused by
liquefaction of saturated loose sand layers. Within two year after the
earthquake, a large number of borings, standard penetration tests and
soil tests were carried out in order to clarify the causes for the damage
to housing sites in the six areas.
Discussions on the effects of subground conditions, that is, geological
and topographical conditions, susceptibility of the subground to liquefaction
and seismic stability of the foundation are presented in this paper.
*東北工業大学工学部土木工学科
Department of Civil Engineering, Tohoku Inst. of Technology
|