S40宁国至枞阳高速公路池州段建设工程地质灾害危险性评估  

Geological hazard assessment for the construction of the Chizhou section of the S40 Ningguo-Zongyang expressway

作　　者：孙伟伟 许雪洁 SUN Wei-wei;XU Xue-jie(The first hydro-logical engineering geological survey institute of Anhui geological survey bureau,Bengbu 233000,Anhui Province,China)

机构地区：[1]安徽省地勘局第一水文工程地质勘查院,安徽蚌埠233000

出　　处：《地下水》2024年第1期155-158,共4页Ground water

摘　　要：介绍了S40宁国至枞阳高速公路池州段建设工程地质灾害危险性评估的具体案例。该拟建工程全长约46.21 km,起于泾县与青阳县交界处竹溪村附近接拟建的泾县至青阳高速公路,终于池州长江公铁大桥南引桥处。依据已开展的池州市贵池区和青阳县地质灾害调查情况,区内可能存在滑坡、膨胀土变形、岩溶塌陷等地质灾害,工程建设本身可能遭受及引发加剧地质灾害。在充分收集研究前人资料基础上,以道路中心线外扩500 m范围为本次评估区范围,开展了野外地质灾害调查和地质灾害危险性评估工作,取得主要成果与结论如下:(1)评估区地质环境复杂程度为复杂,现状有发育程度弱的滑坡和膨胀土变形地质灾害。(2)将评估区划分为岩溶塌陷、崩塌(基坑崩塌)、滑坡、泥石流地质灾害危险性中等区(Ⅰ),软土变形、砂土液化、基坑崩塌地质灾害危险性中等区(Ⅱ),崩塌(基坑崩塌)、滑坡、泥石流地质灾害危险性小区(Ⅲ),崩塌(基坑崩塌)、滑坡地质灾害危险性小区(Ⅳ),膨胀土变形、基坑崩塌地质灾害危险性小区(Ⅴ)。本次地质灾害危险性评估较为详细系统,调查数据准确,评估结果可靠,为后续的建设用地适宜性评价和地灾综合防治提供了有用的基础资料。Introduced the specific case of geological hazard assessment for the construction of the Chizhou section of the S40 Ningguo-Zongyang expressway.The proposed project is about 46.21 km long,starting at the junction of Jing County and Qingyang County near the village of Zhuxi to connect the proposed Jing County-Qingyang expressway,and ending at the southern approach to the Yangtze river public rail bridge in Chizhou.According to the geological hazard survey carried out in Guizhi district of Chizhou City and Qingyang County,there may be geological hazards such as landslide,swelling soil deformation and karst collapse in the area,and the project construction itself may suffer from and aggravate geological hazards.In the full collection and study of previous information based on the road centerline outreach 500m range for the scope of this assessment area,field geological disaster investigation and geological hazard assessment work,the main results and conclusions are as follows:(1)assessment area geological environment complexity for complex,the current situation has a weak degree of development of landslides and swelling soil deformation geological hazards.(2)The assessment area is divided into karst collapse,collapse(pit collapse),landslide,mudslide geological disaster hazard zone(Ⅰ),soft soil deformation,sand liquefaction,pit collapse geological disaster hazard zone(Ⅱ),collapse(pit collapse),landslide,mudslide geological disaster hazard zone(Ⅲ),collapse(pit collapse),landslide geological disaster hazard zone(Ⅳ),expansive soil deformation,pit collapse geological disaster risk area(Ⅴ).The geological hazard assessment is detailed and systematic,the survey data is accurate,and the assessment results are reliable,which provides useful basic information for the subsequent evaluation of the suitability of construction sites and comprehensive prevention and control of geological hazards.

关 键 词：地质灾害 地质环境 危险性评估 综合分区 高速公路 

分 类 号：P694[天文地球—地质学]