Run-out prediction and failure mechanism analysis of the Zhenggang deposit in southwestern China

Due to the intensive rainfalls in October 2008 and the heavy snowfalls in February 2009, the Zhenggang deposit exhibited a high probability of landslide reactivation. A good understanding in landslide run-out prediction and failure mechanism analysis was thus highly urgent. In this study, the landslide dynamic simulations were performed for studying the run-out prediction and the failure mechanism of the Zhenggang deposit. The impacts of the friction coefficient at sliding surface and the contact damping ratio on landslide run-out were investigated. The potential improvement of the proposed landslide run-out modeling was discussed.