Analysis and application of the formation mechanism of mountain induced collapse geological disaster above coal mine goaf——Taking Daping Coal Mine as an Example
In order to avoid geological disasters caused by mountain collapse in goaf areas of coal mines,the formation mechanism of geological disasters caused by mountain collapse in goaf areas of Daping Coal Mine of Zhengzhou Coal Industry(Group)Co.,Ltd.was analyzed based on actual engineering conditions.Through on-site investigation and exploration,various factors such as the geological structure,geological conditions,surrounding environment,and mining activities of the ore vein in the coal mine were studied.Through analyzing the damage characteristics and influencing factors of mountain collapse,it was found that the main causes of collapse disasters were the dangerous rock blocks,critical state,and weak structures in the upper part of the slope,and the rainfall,human activities,and earthquake disasters were also the main factors leading to the instability and collapse of dangerous rock blocks.A critical discrimination mechanism analysis model for geological disasters was established by quantifying influencing factor indicators and failure criteria.The model has obtained the analysis results of collapse geological disasters of goaf area in practical engineering applications,and the results show that as long as the geological structure is controlled and stabilized,the occurrence of related geological hazards can be avoided.
万方数据
