Inversion Technology of 3D Ground Stress Field Applied to Evaluation of Strata Pressure Bumping Danger

In order to improve the evaluation accuracy of the mine strata pressure bumping danger, a related study was conducted based on the inversion technolo gy of the 3D ground stress field. Taking No. I panel of Guojiahe Mine as a study object, based on the analysis on the geological tectonic features, coal and rock physic al mechanics test and the mine ground stress measurement, according to the multiple linear regression principle, a numerical simulation inversion was conducted on th e 3D ground stress field. The ground stress of the 3D ground stress field within the study region was obtained. Under the comprehensive consideration on the tectonic s tress and mining stress influences, a macro evaluation on the mine strata pressure bumping danger from No. I panel and the accurate evaluation on the mine strata pr essure bumping danger in a local section was realized. There were 11 strong mine strata pressure bumping dangerous zones and 5 medium mine strata pressure bumpi ng dangerous zones divided.