期刊名称：Journal of Earth Sciences and Geotechnical Engineering
印刷版ISSN：1792-9040
出版年度：2018
卷号：8
期号：2
语种：English
出版社：Scienpress Ltd
摘要：Mosul and Haditha Dams are the largest damson the Tigris and Euphrates Rivers in Iraq, respectively. Both dams are ofearthfill type and constructed on sedimentary rocks, but have differentgeological conditions. Both of them suffer from karstification problems. Theformer; however, suffers from intense karstification, which has endangered thestability of the dam and possible failure. The karstification in both sites is ofdifferent origins, types, shapes, sizes and depths, as well as in differentrocks and geological formations. In Mosul Dam site, the highly dissolved gypsumbeds of the Fatha Formation has formed solution type sinkholes with cavities ofdifferent shapes and sizes at different depth; attaining to about 250 m uponwhich the foundations of the dam are located. In Haditha Dam site, thekarstification occur in the limestone beds of the Euphrates Formation, thedeveloped sinkholes are of collapse type with regular shapes; either circularor oval apertures. The thickness of the karstified sequence in the foundationsis not more 50 m. This research work is to highlight the roleof the geological conditions, especially when the karstification in the safetyof both dams is concerned and its effect on the foundations of the damsKeywords: Mosul Dam; Haditha Dam; Dam sitegeology; Karstification, Gypsum and Limestone beds.
关键词：Mosul Dam; Haditha Dam; Dam sitegeology; Karstification; Gypsum and Limestone beds
