Measurement of Three-dimensional In-situ Stress and Stability Analysis for Surrounding Rocks
QIN Bao-hua
LI Gang-e
Abstract：To solve the problem of transportation roadway serious damage in -450m of Wobei mine, the in-situ stress has been measured by Kaiser effect of rock. The results show that the maximum principal stress at -450m is 15. 36MPa, which is in a high stress area, and the high horizontal stress is unfavorable for roadway support. Based on the a-nalysis of test, the numerical simulation UDEC method is applied to predict for the deformation amount. It is shown that bolting is able to suffice the requirements of rock stability. Supporting program is provided for roadway excavation, it is the learned and guiding significance to control the surrounding rocks.
Keywords：in-situ stress measurementKaiser effectstability of surrounding rocksnumerical simulation
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 76-79 )