Hazard assessment of potential debris flow: A case study of Shaling Gully, Lingshou County, Hebei Province, China

The debris flows in the Taihang Mountain region North China are basically triggered by rainstorms. Firstly, flow susceptibility of Shaling Gully, Lingshou County, Hebei Province, was analyzed this paper to evaluate its hazard and effect on downstream proposed structures. Secondly, maximum depth velocity potential Gully were numerically simulated based FLO-2D model, simulation results indicate that depths under 50-year 100-year rainstorms will have some With intensity classification, classified. According velocities ARCGIS10.8 software adopted optimize zones, therefore zonation map established. consideration natural conditions other factors such as gully feature, a 4 m high 40 wide retaining dam designed. numerical show may decrease negligible level, which offers beneficial reference subsequent engineering design for Gully.