Abstract
The failure of a landslide dam is a sudden geo-hazard, which can significantly threatens the lives and property of local residents. In this study, 11 experiments were designed to reproduce the failure process of landslide dams with different grain size distributions and hydrodynamic conditions. In order to fully consider the influence of seepage on the stability of landslide dams with different textural properties, the inflow discharge was small in these tests. By analyzing the experimental data, we found that the textural properties plays a key role in the failure modes and process of landslide dams. The eleven tests produced five different results: the landslide dam in experiment 1 and 8 remained stable; the landslide dam in experiment 2 partially failed; in experiments 3–6, the dams failed due to overtopping and erosion, while in experiment 7, the dam failed due to overtopping and soil collapse; in experiment 9–11, the dams failed due to piping, overtopping and erosion. In addition, the evolution of the outflow discharge and density also varied for the different textural properties of the dam materials. Based on the experimental results, the landslide dam materials were classified as coarse-matrix controlled, medium particle controlled, fine-matrix controlled, and balanced composition. The failure modes and process as well as the evolution characteristics of the outflow discharge and flow density were all summarized, providing a scientific reference for disaster prevention and mitigation research of landslide dams.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
