港湾の耐震・危機耐性

[I-434] PROBLEMS OCCURRED IN THE FISHING PORT FACILITIES DUE TO THE RECOVERY FROM THE CRUSTAL MOVEMENT ASSOCIATED WITH THE 2011 TOHOKU EARTHQUAKE AND ITS COUNTERMEASURES

〇Atsushi Mikami¹, Makoto Kamiyama² (1.Tokai University, 2.Tohoku Institute of Technology)

Keywords:crustal movement, the 2011 off the Pacific coast of Tohoku Earthquake, fishing port facilities, restoration to the original forms

Due to noticeable subsidence of ground occurred in the wide area of the Tohoku district caused by the 2011 off the Pacific coast of Tohoku Earthquake, necessary measures including level raising of quay walls were undertaken. Long-lasting post-seismic crustal movement is affecting fishing port facilities: several years after the main shock, quay walls became too high for fishermen due to the increased ground elevation, thus, quay wall lowering construction followed the level raising construction at a port. This study carried out hearing survey with those concerned with the fishing industry regarding problems occurred in the fishing port facilities and its countermeasures.