陕北地区重要型建设工程场地地质灾害危险性评估  

Risk Assessment of Geological Hazards in Important Construction Engi⁃neering Sites in Northern Shaanxi Region

作　　者：韩丹 杨朋 HAN Dan;YANG Peng(Shan Xi TianDi Geology Co.LTD.,Xi′an 710000,China)

机构地区：[1]陕西天地地质有限责任公司,陕西西安710000

出　　处：《河南科技》2024年第22期95-99,共5页Henan Science and Technology

摘　　要：[目的]对陕北地区遭受以崩塌、滑坡为主的地质灾害隐患及压覆矿产资源等多因素耦合作用下的大型场地建设项目进行危险性评价。[方法]以府谷县某大型光伏发电建设工程危险性评估项目为依托,阐述了在陕北地区进行危险性评估工作的方法、内容,总结了该区典型地质灾害形成发育的常见影响因素、成因及防控措施。[结果]初步查明压覆区域滑坡、崩塌灾害受地形地貌、地层岩性、降雨及人为因素等共同影响;采空塌陷的影响因素为地震、地下水位变化和采矿活动,此区域以采矿活动为主。[结论]综合考虑以上因素和项目的特殊性,针对滑坡、崩塌地质灾害应采取避让措施;针对采空塌陷区应采取长期监测措施。研究结果对指导该区域工程建设危险性评估工作具有一定现实意义。[Purposes]The risk assessment of large-scale site construction projects in northern Shaanxi province is currently conducted considering the combined impact of various factors,including geological hazards such as collapse and landslide,as well as overlying mineral resources.[Methods]This paper presents the methods and contents of risk assessment work based on a large photovoltaic power genera-tion construction project in Fugu County,describing common influencing factors,causes,and prevention measures for typical geological disasters in the area.[Findings]It is preliminarily found that the land-slide and collapse disasters in the overburden area are affected by topography,lithology,rainfall and hu-man factors.The influencing factors of mining collapse are earthquake,groundwater level change and mining activities,which are mainly mining activities in this area.[Conclusions]Considering these fac-tors and the project′s specific characteristics,avoidance measures for geological disasters like landslides and collapses should be implemented while long-term monitoring measures are taken for cave-ins.The research results have certain practical significance for guiding the risk assessment of engineering con-struction in this area.

关 键 词：光伏发电 黄土地区 危险性评估 采空塌陷 地质灾害防控 

分 类 号：P694[天文地球—地质学]