宁夏隆德县地质灾害发育特征及形成条件分析  

Development Characteristics and Formation Conditions of Geological Hazards in Longde County of Ningxia

作　　者：吕世民[1,2] 吴凯[1] 杜光波[1] 李焕焕[1] 

机构地区：[1]长安大学地质工程与测绘学院,陕西西安710064 [2]宁夏回族自治区国土资源厅,宁夏银川750000

出　　处：《水利与建筑工程学报》2015年第6期42-47,共6页Journal of Water Resources and Architectural Engineering

基　　金：中国地质调查局项目"西北黄土高原区地质灾害详细调查"(12120108914028)

摘　　要：隆德县地质环境条件复杂,是宁夏地质灾害的易发区。基于宁夏隆德县1∶5万地质灾害详细调查,从定性和定量两个方面分析了隆德县地质灾害发育类型、发育特征、分布规律及形成条件。隆德县发育的地质灾害主要有滑坡、崩塌、泥石流和不稳定斜坡,其中滑坡59处、崩塌59处、泥石流17处、不稳定斜坡170处。经分析,确立了地形地貌、地层岩性、降雨及人类工程活动等因素与地质灾害发育特征、分布规律及形成条件之间的关系,为隆德县建立地质灾害信息数据库和编制地质灾害防治规划提供依据。The geological conditions of Longde county are complicated,which makes this place susceptible to geological disasters. Based on the detailed investigation of geological disasters of Longde county,the types,development features,distribution and formation conditions of geological disasters were analyzed from the qualitative and quantitative aspects. Results indicate that the main geological hazards in Longde county are mainly landslides,collapses,debris flows and unstable slopes,including 59 landslides,59 collapses,17 debris flows and 170 unstable slopes. According to our analysis,the relationship between the factors of landform,soil type,rainfall and human engineering activities and the development features,distribution and formation conditions of the geological disasters is determined. This study can provide a strong support for the establishment of geological hazard information database and compilation of geological hazard prevention and administration plan.

关 键 词：地质灾害 发育特征 分布规律 形成条件 

分 类 号：P642[天文地球—工程地质学]