高架橋柱１１４０本沈下の恐れ　新幹線耐震工事前倒し要請―国交省

　３月の福島沖を震源とする地震で東北新幹線が脱線した事故を受け、国土交通省は１４日、新幹線の地震対策を検証する有識者委員会を開き、地震で沈下する恐れのある高架橋柱が全国で約１１４０本あり、ＪＲ東日本とＪＲ西日本に耐震補強工事完了の前倒しを要請したと明らかにした。２０２５年度までの完了を目標とする。
　検証委によると、ＪＲ東管内では約９７０本、ＪＲ西では約１７０本あり、いずれも多くが現行の耐震補強計画外のものだった。
　宮城、福島両県で最大震度６強を観測した３月の地震では、脱線事故現場以外でも多くの電柱や高架橋が被害を受け、全線再開まで約１カ月かかった。（2022/12/14-21:21）

A Japanese transport ministry panel has found that the country has some 1,000 viaducts on which railway tracks may sink due to an earthquake, according to sources close to the ministry.
   The ministry will hold a meeting of the panel of experts Wednesday to examine earthquake countermeasures for Shinkansen bullet trains after a major earthquake off Fukushima Prefecture, northeastern Japan, in March caused a derailment of a Tohoku Shinkansen train, operated by East Japan Railway Co. , or JR East.
   The ministry will ask JR East and others to move up the schedules for their antiseismic reinforcement work, the sources said.
   It took about a month to fully reopen the Tohoku Shinkansen line as the March quake, which measured upper 6, the second-highest level on Japan's seismic intensity scale, in some areas of Fukushima and the neighboring prefecture of Miyagi, not only caused the derailment but also damaged many utility poles and viaducts.
   Railway tracks on two viaducts in Fukushima and Miyagi sagged due to damage caused by the quake.