检索结果-南通市图书馆

Environmental Assessment of Ai-Hilla City Wastewater Treatment Plants

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2015年第6期9卷 749-755页

作者： Mohammad A. alan.a.i Hind Q. alazzawi nadhir A. A1-an.a.i SvenKnutsson College of Engineering Babylon University Babylon lraq Department of Civil Environmental and Natural Resources Engineering Lulea University of Technology Lulea 97187 Sweden

Foundation Assessment in Different Parts of iraq Using STAAD Pro V8i

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2013年第3期7卷 273-281页

作者： Entidhar A1-Taie nadhir A1-an.a.i Sven Knutsson Tarek Edrees Saaed Department of Civil Environment and Natural Resources Engineering Lulea University of Technology Lulea 97187 Sweden

Foundation is considered as one of the main parts of any structure. The type of foundation used is highly dependent on the type and properties of soil. The design of foundations requires many factors that should be defined. There are number of differences in the geological and soil conditions in iraq. As a consequence, these differences are reflected on the type of foundation to be used. Despite these differences, same materials and style of buildings are used all over iraq. The main problems of iraqi soil are high gypsum content, salinity and shallow water table depth. These factors that influence the foundations are the soil properties and the amount of loads that transmitted by the superstructure. The situation has been analysed through a case study which illustrated the link between soil and foundation types in three different parts of iraq (Mosul, Baghdad and Basra). One building was analysed using "STAAD (structural analysis and design). Pro" software in these regions. it is evident that iraqi designers and engineers require local code to define all the loads, materials and design of the foundation to be used. The use of local materials might be very effective from both engineering and economic perspectives.

关键词：伊拉克基金会基础类型评估部位土壤条件基础材料结构分析

Landfill Siting Using GiS and AHP （Analytical Hierarchy Process）： A Case Study Ai-Qasim Qadhaa, Babylon, iraq

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2016年第5期10卷 530-543页

作者： ali Jalil Chabuk nadhir A1-an.a.i Hussain Musa Hussain Sven Knutsson Roland Pusch Department of Civil Environmental and Natural Resources Engineering Lulea University of Technology Lulea 971 87 Sweden Department of Geology Faculty of Science University of Kufa Kufa 16008 Iraq

Talc-Based Concrete for Sealing Borehole Optimized by Using Particle Packing Theory

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2013年第4期7卷 440-455页

作者： Mohammed Harem Mohammed Roland Pusch nadhir A1-an.a.i Sven Knutsson Mats Emborg Martin Nilsson alireza Pourbakhtiar Department of Civil Mining and Natural Resources Engineering Lulea University of Technology Lulea 97187 Sweden Department of Civil Engineering College of Engineering Mosul University Mosul 41002 Iraq

The paper describes assessment of the performance of cement-poor concretes on the basis of packing theory. The concretes are intended for sealing segments of deep boreholes and have a small amount of cement for minimizing the mutual chemical impact on the contacting clay seals. The composition is examined by application of packing theory with respect to the cement/aggregate ratio and the gradation of the aggregate material which is crushed quartzite for providing high internal friction after maturation, as well as to talc added for fluidity and to the small amount of cement. Low porosity and micro-structural stability must be guaranteed for very long periods of time. The study exemplifies how packing theory assist designers in selecting optimal proportions of the various components. Optimum particle packing implies minimizing the porosity and thereby reducing the amount of cement paste needed to fill the voids between the aggregate particles. The use of talc as inorganic super-plasticizer since ordinary organic additives for reaching high fluidity at casting are undesirable, and since talc reacts with cement and provides high strength in along-term perspective.

关键词：水泥混凝土颗粒填充滑石粉深钻孔理论优化包装密封高流动性