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<p>　北海道の釧路沖。海底下約220メートルの地中に迷路のように広がる薄暗い坑道で、巨大な電動ドラムカッターがうなりを上げる。</p><p>　釧路コールマイン（ＫＣＭ）の採炭現場。国内唯一の坑内堀り炭鉱だ。黒い炭層を削り取り、ベルトコンベヤーで地上へと運び出す。約300人の炭鉱マンが３交代制で、年間約55万トンの石炭を“ヤマ”から掘り出し、主に電力会社に供給する。</p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="国内唯一の坑内堀り炭鉱「釧路コールマイン」。「切り羽 (きりは)」と呼ばれる採炭現場の最前線は、北海道・釧路沖の海底下約２２０メートルにあった。巨大な電動ドラムカッターが炭壁を掘り進める" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700647007102012000001-PN1-9.jpg"/></div><p>国内唯一の坑内堀り炭鉱「釧路コールマイン」。「切り羽 (きりは)」と呼ばれる採炭現場の最前線は、北海道・釧路沖の海底下約２２０メートルにあった。巨大な電動ドラムカッターが炭壁を掘り進める</p></div><p></p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="約４５００万年前の地層から削られた石炭が光を反射しきらめいた" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700649007102012000001-PN1-9.jpg"/></div><p>約４５００万年前の地層から削られた石炭が光を反射しきらめいた</p></div><p></p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="採炭は機械化されてはいるが、機械を動かすのは炭鉱マン。経験と知識が頼りだ。チームリーダーの「先山 (さきやま)」が部下の「後山 (あとやま)」を率いて作業にあたる" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700651007102012000001-PN1-9.jpg"/></div><p>採炭は機械化されてはいるが、機械を動かすのは炭鉱マン。経験と知識が頼りだ。チームリーダーの「先山 (さきやま)」が部下の「後山 (あとやま)」を率いて作業にあたる</p></div><p></p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="炭鉱マンを海底の“ヤマ”に運ぶのは「人車 (じんしゃ)」と呼ばれるケーブルカー。約３００人が３交代制で昼夜働く" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700653007102012000001-PN1-9.jpg"/></div><p>炭鉱マンを海底の“ヤマ”に運ぶのは「人車 (じんしゃ)」と呼ばれるケーブルカー。約３００人が３交代制で昼夜働く</p></div><p></p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="外国人研修生のため、中国語(右)やベトナム語でも書かれた入坑の注意事項。１０年間で約１９００人が保安技術などを実地で学び、母国へ帰った" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700655007102012000001-PN1-9.jpg"/></div><p>外国人研修生のため、中国語(右)やベトナム語でも書かれた入坑の注意事項。１０年間で約１９００人が保安技術などを実地で学び、母国へ帰った</p></div><p></p><p></p><div class="cmn-photo_style2 cmn-position_center" style="width:630px"><div style="cmnc-figure"><img height="420" width="630" alt="釧路コールマインは年間約５５万トンを主に電力会社に供給している。船で出荷するため貯炭場は海のすぐそば" src="/web/20140809060011im_/http://www.nikkei.com/content/pic/20121009/96958A9C889DE6E4EBEBE3E1E6E2E2E4E3E2E0E2E3E09FE3E3E5E2E2-DSXBZO4700657007102012000001-PN1-9.jpg"/></div><p>釧路コールマインは年間約５５万トンを主に電力会社に供給している。船で出荷するため貯炭場は海のすぐそば</p></div><p></p><p>　</p><p></p><p>　最盛期には全国に1000ほどあった炭鉱は、安い海外炭に押され、90年代までにほとんどが閉山した。現在操業しているのは北海道の８事業者だけ。ＫＣＭは02年に閉山した炭鉱を引き継いだ。採炭だけでは先行きが危ういため、中国やベトナムからの研修生受け入れ事業も経営の柱にしている。日本の保安技術を学んだ中国では、10年前に年間約6000人に上った事故による犠牲者が、３分の１に減ったという。「研修事業は生きたヤマがあればこそ」と菅原繁樹ＫＣＭ管理部長。</p></div> <div id="JSID_pageNation" class="cmn-article_nation"> <ul> <li> <img src="https://web.archive.org/web/20140809060011im_/http://parts.nikkei.jp/parts/ds/images/common/btn_articlenation_previous_disabled.gif" height="33" width="79" title="前へ" alt="前へ"/></li> <li> <img src="https://web.archive.org/web/20140809060011im_/http://parts.nikkei.jp/parts/ds/images/common/btn_articlenation_1_on.gif" height="33" width="39" title="1ページ" alt="1ページ" onmouseover="_nk.mouse(this,event)"/></li> <li> <a 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北の炭鉱、輝き取り戻す ：日本経済新聞

北の炭鉱、輝き取り戻す　　：日本経済新聞