河北保定阜平县城地质灾害分布及影响因素

河北保定阜平县城位于山区,地质环境条件较为复杂,地质灾害时有发生,研究地质灾害分布规律及影响因素对阜平县城未来规划建设具有重要意义。通过资料分析与实地调查,阜平县城及周边地质灾害点共16处,其中泥石流4处,滑坡5处,崩塌7处,发育规模以小型为主。崩塌、滑坡主要分布在构造剥蚀地貌与河谷平原地貌接触部位、风化强烈的坚硬层状变质岩体中,泥石流主要分布在矿山地段。研究区地质灾害的形成的基本条件是地形地貌、岩土体类型及风化程度等因素,降雨、地震和人类工程活动是地质灾害形成的重要影响因素。

Distribution and influencing factors of geological hazards in Fuping County, Baoding, Hebei Province

Fuping county is located in a mountainous area, and the geological environmental conditions are relatively complex, and geological disasters occur from time to time. It is of great significance for the future planning and construction of Fuping county to study the distribution laws and influencing factors of geological disasters. Through data analysis and field investigation, there are 16 geological disaster sites in Fuping county and surrounding areas, including 4 debris flows, 5 landslides, and 7 collapses. The development scale is mainly small. Collapses and landslides are mainly distributed in the contact parts of structural denuded landforms and river valley plains landforms, strong weathered hard layered metamorphic rock bodies, and debris flows are mainly distributed in mines. The basic conditions for the formation of geological hazards in the study area are topography, rock mass type and weathering degree. Rainfall, earthquake and human engineering activities are important factors influencing the formation of geological hazards.