{"title":"Detection of water leakage from dams by self-potential method","authors":"N.H. Al-Saigh , Z.S. Mohammed , M.S. Dahham","doi":"10.1016/0013-7952(94)90046-9","DOIUrl":null,"url":null,"abstract":"<div><p>A self-potential survey of streaming potentials along the eastern embankment of a dam was very successful in locating leakage areas and determining the relative intensity of discharge. Self-potential measurements have shown negative anomalies of up to 100 mV in amplitude. The width of the discharge areas ranged between about 40 m and 150 m.</p><p>Repeated observations of SP data at two different reservoir levels showed no great change in the leakage flow behaviour. Detailed mapping of<em>SP</em> values in the area revealed the possible presence of two sinkholes, the first with an estimated diameter of about 25–30 m and the second with a diameter of about 15 m based on a qualitative interpretation of the<em>SP</em> anomalies. The location of these two sinkholes coincides well with the position of two subsurface normal faults in the area.</p></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"37 2","pages":"Pages 115-121"},"PeriodicalIF":6.9000,"publicationDate":"1994-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0013-7952(94)90046-9","citationCount":"76","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Engineering Geology","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0013795294900469","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, GEOLOGICAL","Score":null,"Total":0}
引用次数: 76
Abstract
A self-potential survey of streaming potentials along the eastern embankment of a dam was very successful in locating leakage areas and determining the relative intensity of discharge. Self-potential measurements have shown negative anomalies of up to 100 mV in amplitude. The width of the discharge areas ranged between about 40 m and 150 m.
Repeated observations of SP data at two different reservoir levels showed no great change in the leakage flow behaviour. Detailed mapping ofSP values in the area revealed the possible presence of two sinkholes, the first with an estimated diameter of about 25–30 m and the second with a diameter of about 15 m based on a qualitative interpretation of theSP anomalies. The location of these two sinkholes coincides well with the position of two subsurface normal faults in the area.
期刊介绍：
Engineering Geology, an international interdisciplinary journal, serves as a bridge between earth sciences and engineering, focusing on geological and geotechnical engineering. It welcomes studies with relevance to engineering, environmental concerns, and safety, catering to engineering geologists with backgrounds in geology or civil/mining engineering. Topics include applied geomorphology, structural geology, geophysics, geochemistry, environmental geology, hydrogeology, land use planning, natural hazards, remote sensing, soil and rock mechanics, and applied geotechnical engineering. The journal provides a platform for research at the intersection of geology and engineering disciplines.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
