Initiative prevention and control technology of mine pressure bump under complicated condition of deep mine

In order to solve the mine pressure bump prevention and control problems under the deep mine complicated conditions,based onNo. 2103 coal mining face i n Gucheng Mine as a study object,the paper had a study on a mine strata pressure bump occurred mechanismof the coal mining face in a thick and key stratum with strong. bump tendency. The macro evaluation method was applied to the evaluationof the coal mining face and the dangerous region grading. In combination with the microseismic monitoring and the stress online monito-ring,the prevention and control were conducted with the forced pressure pre-released and forced support technical measures. After themeasures conducted,during the mining process,high stress concentration again occurred in partial pressure released region,the miningstress was 18 MPa and the dang er was eliminated after the active forced pressure pre-released measures conducted. Thus based on activeforced pressure pre-released danger eliminated measures, activ e powerful support and active forced monitoring,the establishment of themine pressure bump active prevention and control system could effectively reduce the danger of th e mine pressure bump occurred.