唐山市北部地区地质灾害现状和时空分布特征

The Present Condition of Geological Disasters and Characteristics of Temporal and Spatial Distribution in Northern Area of Tangshan City

唐山市北部地区主要地质灾害类型有滑坡、崩塌、泥石流、地面塌陷和不稳定斜坡等,地质灾害数量多,危害重,但以中小型规模的灾害为主。唐山市北部地区地质灾害的时空分布特点明显,地质灾害发生的数量自北向南逐渐减少,严重的地质灾害发生时段相对集中,具随时间呈波状起伏,逐渐上升的规律。

The main geological disasters in northern area of Tangshan city include landslide, collapse, debris flow, ground collapse and unstable slope happened frequently and harmfully, while they are characterized by small or medium - scale disasters. The characteristics of temporal and spatial distribution of geological disasters distinguish obviously, the number of geological disasters reduce gradually from north to south, serious geological disasters have occurred during relatively concentrated, which up and down with time, but in increasing gradually trend in total.