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العنوان
Logistics and Modernization of Egypt’s Ports :
المؤلف
El-Dakkak, Mohamed Ahmed.
هيئة الاعداد
باحث / محمد أحمد محمد الدقاق
mdakkak101@yahoo.com
مشرف / محمد السيد النجار
nagger_mo@yahoo.com
مشرف / بهاء الدين أحمد الشرنوبى
bahaa.elsharnouby@yahoo.com
مناقش / محمد هشام احمد عبد المحسن
hisham_abdelmohsen@yahoo.com
مناقش / أوسامى سعيد السيد سيد أحمد راجح
الموضوع
Transportation Engineering.
تاريخ النشر
2018.
عدد الصفحات
140 p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة (متفرقات)
تاريخ الإجازة
6/12/2018
مكان الإجازة
جامعة الاسكندريه - كلية الهندسة - هندسة المواصلات
الفهرس
Only 14 pages are availabe for public view

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Abstract

Quay wall is one of the key features in port facilities and equipment, this type of quay wall has been common in construction of moorings. Due to the demanding big amount of investment in port structures, the construction of a quay wall becomes more important day by day. During the last four decades, the call for more effective port operation stimulated the development of new cargo handling methods and new cargo handling and hauling equipment, and resulted in dramatic changes in ship size and shape, which have direct impact on the port and harbour development. The advance technology in transporting commodities by water transportation results in a new approach to planning, design and modernization of existing ports. In general, modernization of the existing facility is aimed to increase the depth of water in front of the existing wharf, increasing the load carrying capacity of the structure, or both. The techniques used to achieve these goals vary depending on foundation geotechnical parameters, type and physical condition of the existing structure, and operational conditions. Gravity-type structures are those type which can develop their resistance to soil pressure. Various kinds of gravity-type structure are used. The advantages of these quay walls type are easy construction technology, good durability and preferred costs. This thesis is searching to reach an optimum economic solution easy in implementation to be generalized to modernize as general the concrete block quay type in Egypt. Alexandria port consists of 75 quays, 74 of them are gravity wall type. Searching through seven proposed Scenarios for different type of relieving structure to increase the depth of water in front of the existing quay and to increasing the load carrying capacity of the structure. All the cases will be presented using a finite element analysis software, GTS NX is a new experience of geotechnical analysis system and one of the MADIS package, which will be used in this thesis, this program equipped to handle the entire range of geotechnical design applications including deep foundation, excavations, complex tunnel systems, seepage analysis, Consolidation analysis, embankment design, dynamic and slope stability analysis. Finally, the proposed scenarios will be analyzed and the anchored pile solution is the most optimum solution. Stress result under the bearing block had been improved comparing with the original case. Enhancing and reducing the stresses under the bearing block by a percentage about 22 %. Two improvement factors 1.5 & 2.0 from the original load had been gone over using GTS NX Program to analysis. Stresses and the vertical displacement under the different two-improvement factor had been analyzed. The maximum vertical displacement due to the improvement factor 1.5 and 2.0 after analyzing was 5cm for them both which means the soil had reach the maximum consolidation and also is accepted according to the British Slandered. The Anchored pile achieve the optimized solution and its estimate cost is 13,720 $/m for each meter long and the deepening estimated cost for each meter long of the gravity quay wall is equal to 3700 $ for each meter long and with a total estimated cost equal to 17,420 $ for each meter run comparing with the cost of new quay which is about 80,000 $/m for each meter long with a percentage of 21.80 % of a new construction with a saving percentage of 78.20%. Arching effect causes reduction of horizontal stress in distance between piles and concentration of horizontal stress behind the piles. In our case the spacing between piles (S) is 3 D and the spacing between rows is (S) is 3 D which emphasis the above mention and with the permissible by the Egyptian soil mechanics Code.This thesis is aiming to measure the port performance, forecasting demand, and measuring the port capacity to re-plan old ports facilities and implement a masterplan for short term. Determines modernizing requirement for Alexandria Port as a case study. Implementing a common solution for modernization of old concrete block quays type. Concrete Block quay from Alexandria is the modernization case study. The common solution for modernization should answer the four W (what, why, when and who) to do, to increase the terminal capacity and introduce an economic, suitable and stable solution for the concrete block quays to be a common solution for this type of quays.in Egypt.