煤矿安全2019，Vol.50Issue(12)：179-183,5.DOI:10.13347/j.cnki.mkaq.2019.12.040
补连塔煤矿大采高工作面覆岩运移规律
Law of Overlying Strata Movement in Large Mining Height Working Face of Bulianta Coal Mine
丁航1
作者信息
- 1. 国家能源集团神东煤炭集团公司 补连塔煤矿,内蒙古 鄂尔多斯017209
- 折叠
摘要
Abstract
In order to realize the safe mining under cretaceous Klzd aquifer of 12511 large mining hight working face of Bulianta Coal Mine, the method combining the observation of the loss of drilling fluid and the observation of color drilling television is adopted through using ground construction downward drilling to carry out the actual measurement research on the overlying strata movement law of the large mining height working face near the shallow seam. The research results show that the height of the water-conducting fracture zone of the 1# observation hole in the middle of the working face is 104.48 m, and the height of the caving zone is 33.70 m. The height of the water-conducting fracture zone of the 2# observation hole of the working face is 122.90 m, and the height of the fall zone is 37.40 m. The distribution of the "two bands"of the overburden of the working face presents the rule of two sides high and middle low.分类
矿业与冶金引用本文复制引用
丁航..补连塔煤矿大采高工作面覆岩运移规律[J].煤矿安全,2019,50(12):179-183,5.
