宁国市万家中型水库库区工程地质评价  

Engineering Geological Evaluation of Wanjia Medium-sized Reservoir Area in Ningguo City

作　　者：张伟杰 ZHANG Weijie(Changjiang Geotechnical Engineering Co.,LTD.,Wuhan 430014,China)

机构地区：[1]长江岩土工程有限公司,湖北武汉430014

出　　处：《云南水力发电》2024年第3期41-44,51,共5页Yunnan Water Power

摘　　要：以宁国市万家中型水库库区为研究对象,分析了库区的基本地质条件,并进一步对库区存在的主要工程地质问题进行评价。分析得出:库区位于低山、剥蚀浅丘地貌,沿河两岸山体斜坡冲沟较发育,地形较破碎,库区地层岩性为震旦系上统、寒武系、奥陶系下统沉积岩以及第四系松散堆积物,库区无区域性断裂通过,规模相对较大的断层有6条,在此基础上通过岩性、构造、水文地质条件进一步分析了水库岸坡稳定情况、蓄水后产生永久渗漏的可能性以及水库诱发地震的可能性,为水库修建提供了详细的依据,并奠定了基础保障。Taking Wanjia medium-sized reservoir area in Ningguo City as the research object,this paper analyzes the basic geological conditions of the reservoir area and further evaluates the main engineering geological problems existing in the reservoir area.The results show that the reservoir area is located in a low mountain,eroded shallow hilly terrain,with well-developed mountain slopes and gullies along both sides of the river,and a fragmented terrain.The lithology of the reservoir area consists of sedimentary rocks from the Upper Sinian,Cambrian,and Lower Ordovician,as well as loose deposits from the Quaternary.There are no regional faults passing through the reservoir area,and there are 6 relatively large faults.On this basis,the stability of the reservoir bank slope,the possibility of permanent leakage after water storage,and the possibility of induced earthquakes by the reservoir were further analyzed through lithology,structure,and hydrogeological conditions,providing a detailed basis for the construction of the reservoir and laying a foundation for guarantee.

关 键 词：万家中型水库 地质勘察 工程地质条件 水库库区 工程地质评价 

分 类 号：TV221.2[水利工程—水工结构工程]