Yuandian No.1 Mine 1021 Working Face Roof Caving Rule and Gas Extraction Research
SHU Jian-jun1, LI Yang2, PENG Tao3
1. No.325 Geological Team, Bureau of Geology and Mineral Exploration of Anhui Province, Huaibei 235000, China;
2. Qinan Mine, Huaibei Coal Mining Group, Huaibei 235000, China; 3. School of Earth and Environmental, Anhui University of Science and Technology , Huaibei 232001, China
Gas disaster accident was important to mine safety. In order to prevent disasters and accidents caused by transfinite gas, through similarity model pressure test simulation of coal seam roof caving rule, using the key strata theory, combined with model test results, goaf roof caving rule was summarized to conduct face high drilling extraction parameters optimization design.
