ミャンマーにおける高潮災害について : ヤンゴン港を中心とした港湾災害について

Abstract

2008年5月2日にミャンマー西部に上陸したサイクロン(NARGIS)は沿岸に甚大な高潮被害を与え，イラワジ川河口デルタを中心に10万人以上の犠牲者をだした。最大都市ヤンゴンでは復興の拠点ともなる内陸水運用の桟橋を中心とした港湾被害が生じ，100隻以上の貨客船が沈んだ。そこで，迅速な復興を支援するために，ヤンゴン港の被害を中心として現地調査を実施し，被害実態を明らかにするとともに，対策について提案を行った。

A huge disaster was induced in Myanmar by the attack of Cyclone NARGIS on May 2nd, 2008. The Yangonport which is the largest in Myanmar was heavily damaged while the port operation was urgently necessary to carrythe emergency supply by waterway to the Ayeyarwady Delta severely devastated in storm surge. A field survey wascarried out in order to study on the disaster characteristics in the harbor and to obtain the information for recoveryplanning. As the results in the survey, the storm surge deviation above the high water level was measured up and itwas about 1.8m in the northern side of the Yangon River. The floating pontoon and connecting bridge parts in thejetties were mainly damaged in the storm surge of harbor. The number of damaged jetties was 28 out of the totalnumber of 37 in the harbor.