41云南水力发电YUNNANWATERPOWER第40卷第3期*收稿日期：2023-02-10作者简介：张伟杰（1989-），男，湖北襄阳人，工程师，主要从事工程地质、岩土工程工作。宁国市万家中型水库库区工程地质评价张伟杰（长江岩土工程有限公司，湖北武汉430014）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。关键词：万家中型水库；地质勘察；工程地质条件；水库库区；工程地质评价中国分类号：TV221.2文献标识码：A文章编号：1006-3951(2024)03-0041-04DOI：10.3969/j.issn.1006-3951.2024.03.011EngineeringGeologicalEvaluationofWanjiaMedium-sizedReservoirAreainNingguoCityZHANGWeijie(ChangjiangGeotechnicalEngineeringCo.,LTD.,Wuhan430014,China)Abstract：TakingWanjiamedium-sizedreservoirareainNingguoCityastheresearchobject,thispaperanalyzesthebasicgeologicalconditionsofthereservoirareaandfurtherevaluatesthemainengineeringgeologicalproblemsexistinginthereservoirarea.Theresultsshowthatthereservoirareaislocatedinalowmountain,erodedshallowhillyterrain,withwell-developedmountainslopesandgulliesalongbothsidesoftheriver,andafragmentedterrain.ThelithologyofthereservoirareaconsistsofsedimentaryrocksfromtheUpperSinian,Cambrian,andLowerOrdovician,aswellasloosedepositsfromtheQuaternary.Therearenoregionalfaultspassingthroughthereservoirarea,andthereare6relativelylargefaults.Onthisbasis,thestabilityofthereservoirbankslope,thepossibilityofpermanentleakageafterwaterstorage,andthepossibilityofinducedearthquakesbythereservoirwerefurtheranalyzedthroughlithology,structure,andhydrogeologicalconditions,providingadetailedbasisfortheconstructionofthereservoirandlayingafoundationforguarantee.Keywords：Wanjiamedium-sizedr...
