小煤矿井田多位于平顶山煤业集团大型矿井浅部报废水平内，主要开采残留煤柱和采后剩余底部煤层。
The collieries in Xinhua District mainly are village and town-owned small collieries whose mine fields generally situated in shallowly buried and abandoned mining levels of large collieries of Pingdingshan Coal Group .
矿井报废