Analysis on Measurement and Features of Deep Mine 3D Ground Stress Filed
Abstract：According to the serious failure occurred in the -800 m level deep mine roadway of Yaoqiao Mine, a rock Kaiser effect meas- uring method was applied to the mine ground stress measurement. With the six special direction sampling of the directional cores, the sin- gle plus stress value in each direction was obtained with the acoustic emitting experiments. The size and direction of the in-situ principal stress was obtained with the calculation. The results showed that the max principal stress of the -800 m level was 19. 00 MPa and the level was a medium high stress zone. Certain structure stress was existed in the -800 m level. In comparison with the measured resuhs between the -650 m level and the -850 m level, the -800 m as the boundary of Yaoqiao Mine was obtained. The overlying strata were mainly con- trolled by the structure stress and the strata below -800 m would be controlled by the self weight stress mainly.
Keywords：rock mechanicsKaiser effectground stress measurement3D ground stresstectonic ground stress
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 21-23,27 )