某矿自59年,采用快速回采方法以后,所有的坑口采矿强度都有显著提高。如第一、四坑口平均昼夜两次循环每次循环上升一个分层,如四坑口达到平均昼夜上升高度1.857米的最高纪录,甚至连以往回采强度很低的第三坑口,自采用此法后,由过去两昼夜一次循环上升一个分层,提高到昼夜一次半循环上升一层半的水平。由于各坑口的采矿强度提高,使該矿 Since 59, a mine has adopted a rapid recovery method, all pit mining intensity has increased significantly. For example, the first and fourth pit mouths averaged one cycle per cycle, increasing by one cycle. For example, Si Hangou reached the highest record of average day-night rise height of 1.857 meters, even the third pithead with low recovery strength in the past. , By a cycle of the past two days and one cycle up a stratification, raised to a half-circle once a day and a half rise level. Due to the improvement of the mining intensity of each pit, so that the mine