Mechanism, prediction and control of "rock burst induced by shock bump" kind dynamic accident in composite thickness coal
JIANG Fu-xing
WANG Ping
FENG Zeng-qiang
WANG Dao-zong
Abstract：In the excavation environment where the thickness coal seam Was sandwiched by relative soft and hard parts and the mining method of fully mechanized top-coal caving was employed, the concept named" rock burst induced by shock bump "associated with dynamic accidents occurring in the longwall face was put forward. Based on the theoretical and practical study, a mechanics modeling with respective to the composite thick coal seam was preliminarily developed, and the mechanisms Was discussed, as well as the conditions where the mine bump or rock bursting may be induced were analyzed. With the help of the research results, the potential positions of "rock burst induced by shock bump" were successfully predicted in Nantun Coal Mine of Yankuang Group Company. Accord-ing to the prediction in advance, a prevention package of destress blasting, monitoring and controlling activities Was carried out, and as a result, the harmless tremors is successfully under control.
Keywords：composite thickness coal seam"rock burst induced by shock bump"dynamic accidentshock bumprock burst
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1605-1609 )