(解説文要約)
炭坑で一番厄介なのが断層でした。
先山がツルハシで採炭していくと、断層によってずれた岩盤が出現します。
石炭層を採炭していくには、断層によってずれた岩盤を切り抜かなくてはなりません。
ヤマでは断層のことを「ガックリ」「クイチガイ」「ドマグレ」などと呼んでいました。
When digging for coal, faults were considered to be the biggest obstacle.
While miners were using pick axes to dig seams with faults, they sometimes encountered hard rocks that had been dislocated.
At such times, they had to work very hard to cut out the rocks.
These faults were called "Gakkuri", "Kuichigai" or "Domagure".