Browsing by Author "Orhan, A.H."

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Alignment Selection Criteria for Pipelines Essential
(2006) Orhan, A.H.; Yilmazer, I.
Engineering assessment, based on alignment selection criteria, is the essential part of a pipeline project because assessment at every phase of the planning process provides significant contributions in timing, environment, safety and cost. Three international projects are conducted in Turkey, i.e., Bak-Tbilisi-Ceyhan crude oil pipeline, Blue Stream natural gas pipeline, and Turkish Motorway. The assessment criteria and the basic phases to select the best construction line have not been taken into consideration in these projects. Thus, the foreseen cost in motorway projects increased over 500%. Environmental destruction in some of them went beyond the acceptable limits. The four main phases of a linear engineering structure project, i.e., corridor selection phase, route selection phase, alignment selection, and construction line, are discussed.
Capital City of the Oldest Civilization: Hasankeyf T- Turkey
(2009) Yilmazer, O.; Orhan, A.H.; Yilmazer, I.; Özvan, A.; Bekiroǧlu, S.
Hasankeyf is the last standing down loop of the Northern Mesopotamia whereas the Munzur is the upper one. The geology of the area, for 65 million years, with its admirable outstanding features indicating evolution of the region is flowering there. Why are the assaults on Hasankeyf, which served inhabitants and formed a comfortable cradle for various civilizations for the last 12,000 years? The assailants mainly claim that (a) energy shortage and (b) irrigation problems will be solved by the Ilisu dam. All of their claims unrealistic...! Since 1946 they killed thousands of natural and historical monuments and heritages in Anatolia to leave Anatolia as an empty sack by putting forward the same unrealistic arguments. First of all, the very fertile soil forms flood areas of the main rivers such as Tigris and Euphrates. Dams invade at first the fertile alluvial soils at the flood bank then of the relevant streams, fertile soil (colluviums) accumulated along the mountain toes bounding the alluvial soil. Hence there will remain no land to irrigate. Every dam has certain time limit to be used. It might be a few decades. Then, there will be no energy and no irrigation. Additionally, it continues to emit methane (CH4) which is 21 times more disastrous than CO2 in regards with global warming processes. The project TIDE- abbreviation of Terracing - Torricelli - Turbine - Irrigation - Dyke - Energy-proposed as an alternative to the Ilisu dam project provides; a. 90% reduction in cost, b. Twice more energy, c. Twelve times more farm land to be irrigated, d. 99% reduction in land acquisition, e. Easy protection and conservation of the natural monuments, f. Effective preservation of the historical and cultural heritages forever, and g. Numerous superiorities from standpoint of • timing, • environment, • safety-security, and • Cost (TESC). © 2009, INSInet Publication.