高坑矿于1936年始建立并，解放后续建，设计60万t／a，1957年投产，当年超过设计能力，1979年完成矿井环改，1980年核定能力为90万t。矿井原采用一对立并多水平石门开拓（图1），1978年增建皮带斜井出煤，立并改作副井。矿井共划分5个水平，水平垂高：三水平以上为100m，四水平 Gao Hang Mine was established in 1936 and was subsequently built after the liberation. Its design was 600,000 t / a and was put into operation in 1957 when it surpassed the design capability. In 1979, it completed the reformation of mines and its approved capacity in 1980 was 900,000 t. The original use of a mine and the opposite of the horizontal stone gate to open up (Figure 1), in 1978 to build a belt inclined shaft coal, legislation and changed as vice wells. The mine is divided into five levels, the level of vertical: three above the level of 100m, four levels