Research on Ground Stress Field of Rock Masses by Feedback of In-Situ Displacements Measurement

In this paper, according to the field displacement measurement data of rock chamber modal test and the regression analysis of the finite element mathematieal model, the ground stress field of rock masses is determined. The calculated results are in agreement with the measured displacement and the measured stress. It is shown that the regression method based on the measured displacemcnt is feasible, the results are reliable, and it may be used in practical engineering.