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 two largest damsof Iraq. They were constructed in localities having completely differentmaterials for use in the core and rip-rap. While clay for the core was abundantin Mosul Dam site it was completely missing in the other dam site. Where solidand sound limestone for the rip-rap was available in large quantities in Mosuldam only dolomitic limestone of inferior quality was there in Haditha Dam site.In Haditha Dam, the use of the only available material for the core was mealydolomite and it was used successfully, but the addition of an asphalticconcrete diaphragm was necessary to improve impermeability of this core. Theuse of this material for the first time in the world was a challenging task tothe engineers, who could not have done this without carrying out firstcomprehensive field and laboratory research. Even sand and gravel materialswere available in the two sites in ways that borrowing and using them requiredcompletely different techniques in the two sites. In the shells of Mosul Dam, they were placedand compacted after minimum treatment, filter material; however, had to besorted out and mixed in screening plants. In Haditha Dam site dredging of the materials from the river channelresulted in adopting a hydraulic filling procedure in building the shells andeliminating the filter zones. Good quality limestone was used in Mosul Damrip-rap but the missing of such rock quality in Haditha Dam dictated the use ofconcrete facing protection placed by mechanical means. The differentconstruction materials used in the two dams resulted in producing twocontrasting designs which had also required different methods of constructionand to some extent different machinery. In Mosul Dam, everything followed thestandard and classical methods and specifications. In Haditha Dam new specifications werenecessary for many items of the work. In both cases, the engineers weresuccessful in producing good designs which were safe and functional.Keywords: Mosul Dam, HadithaDam, Clay, Mealy Dolomite, Diaphragm, Hydraulic Fill
关键词：Mosul Dam; HadithaDam; Clay; Mealy Dolomite; Diaphragm; Hydraulic Fill
