APPLICATION OF STRENGTH REDUCTION METHOD IN THE STABILITY ANALYSIS OF DANJIANGKOU RESERVOIR 3D BANK

摘要

The physical mechanics parameters of the main rock in the reservoir region in different hydrous states are obtained by tests. Based on these parameters, strength reduction finite element analysis for the stability of the reservoir bank is carried out. The results of the analysis indicates that strength reduction method is feasible in the stability analysis of 3D reservoir bank, and the conclusions are credible; Moreover, the change of the reservoir water level has an obvious effect on the stability of the reservoir bank, and "the criteria of plastic zone interpenetration" accords with "the criteria of displacement catastrophe" while estimating the criticality in strength reduction theory.