Failure Mechanism Of Rock Slope Collapse And Its Stability Analysis Method

Evaluation and analysis method in rockfall is still not perfect not only at home but also abroad. It difficult to forecast and control applied to collapse, In this paper, the safety factor of strength reduction Changma Reservoir Dam Project on the right bank slope were analyzed, yielded the following results:⑴Collected and summarized in the previous collapse of the rock slope and its treatment based on the results, summarizes the characteristics of rock slope collapse, collapse of the predecessors of the advantages and disadvantages of the various classifications.⑵Works against a specific instance - Changma Project of the right bank slope, according to their characteristics and indicators of rock slope determine the failure mode may occur for the dumping of type landslide damage, the safety factor by analyzing the model were 1,1.2,1.3,1.38 four states of stress and strain when the cloud, summed up the rock slope collapse topping The deformation mechanism. Strata due to the impact of external conditions, resulting in weight to moment, from the beginning to the invading front for cantilever bending direction, and gradually developed within the slope, eventuall toppling failure occurred.⑶Dump slope stability analysis using Goodman-Bray method was checking on the slope,and with the FLAC-3D sofeware analysis results were compared.⑷Finite element strength reduction of the slope safety factor is calculated, draw their strength reduction factor of 1.38.