Destruction Features in Floor Caused by Mining Activity: with Tuanbai Mine as an Example

详细信息   

• 责任者：Li Gang (Mining College ; Liaoning Technical University ; Fuxin 123000 ; China) ; Wang Haiping
• 刊名：Coal Geology & Exploration
• 出版年：2012
• 卷期：40(2)
• 关键词：突水 ; water gushing ; 采矿 ; mining
• 页码：p.59-61, 66
• 图表：2 tables, 12 refs.
• 分类号：1701
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

摘要

The 10th and 11th coal seams in Tuanbai coal mine are suffering from the danger of water inrush from Ordovician karst water during mining. The key technical problems of coal mine floor water hazard control are the study on damaged areas of floor and the effect of ground pressure and water pressure on floor. Furthermore field measurement is reliable research method to master the floor damage regularity. The l0th coal seam was selected as the monitor object, the influence scope and fracture depth were studied by water pressure tests. The results show that, the damage depth of l0th coal is from ten meters to twelve meters, and influence scope are forty meters, the peak is from six meters to twenty meters.