【摘要】 以开滦范各庄矿钻孔探查陷落柱资料为基础,研究了井下钻孔钻进时,遇陷落柱时所出现的识别特征及其特征的形成机理,明确了陷落柱与断层破碎带的区别,为矿井地质工作者准确地判定陷落柱,提供了一定的经验。更多还原

【Abstract】 Based on the data of drilling detecting holes of Fangezhuang coal mine in Kailuan,this paper studies the identification features and their formation mechanism during drilling detecting,defining the distinctions between Karst collapse columns and fault rupture zones,and providing certain experience for mining geological workers to identify Karst collapse columns exactly.更多还原