摘要
Abstract
In this paper,the impact of disaster-inducing geological conditions on debris flow in Dianga Town,Gansu Province was studied.Dianga Town has complex terrain and frequent mudslides,posing a serious threat to local residents.The influence of factors such as topography,stratum lithology,precipitation,surface water,freeze-thaw action and human engineering activities on the formation and development of debris flow was studied and analyzed.It was found that topographical conditions such as ditch bed slope,ditch bank slope slope and basin area,as well as the soft and hard rock composition and strong weathering provided the material basis for debris flow.Factors such as precipitation,surface water and human activities triggered the occurrence of mudslides.Based on this,prevention and control measures such as strengthening early warning systems,implementing engineering governance,biological governance and ecological protection,and strengthening publicity,education and residents'participation are proposed.These measures will create a safer living environment for residents in Dianga Town and provide reference for research on debris flow disasters in other areas.关键词
地质条件/地形地貌/泥石流/降水/冻融Key words
geological condition/topography/debris flow/precipitation/freeze-thaw分类
地质学
