gob water hazards 老空水害
water-accumulating gob 积水采空区
accumulate water in gob 探测老空积水
stored water in gob area 老空区积水
Hereby the safety of the combined mining of thin seams under the close gob water was evaluated.
根据分析的结果评价了临界距离老空水下薄煤层联合开采的安全性。
Transient electromagnetic method (TEM) has special advantage and evident result as an approach for detection of water-accumulating gob.
瞬变电磁法(TEM)作为积水采空区的一种探测手段，有着独特优势和显著效果。
Absorbed in immediate interests mining out of order are main reasons of water inrush from gob area impoundment.
只顾眼前利益，无序开采，是发生采空区积水透水事故的重要原因。
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