Disiplinlerarası restorasyon çalışması: Hasankeyf Kalesindeki tarihi Küçük Saray'ın yerinde yükseltilmesi (original) (raw)

2024, Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi

Impact of the Ilısu reservoir on the historical castle of Hasankeyf  Historical Hasankeyf Castle Ground features  Jacking-up the Small Palace The Inner Citadel, the cave caveman dwellings on the slope of the Shaab Valley, and the Small Palace in the historic settlement of Hasankeyf, which have been affected by the Ilisu Dam, have been documented in 3D. Geotechnical studies have been conducted to analyze the rocks in the fortress region and the rock block on which the Little Palace is built. It has been determined that the water accumulated in the dam lake would have adverse effects on these rocks in the dry formation. To protect the cultural assets in the Kale region, measures have been taken to reduce the impact of water. To preserve the architectural and structural integrity of the Small Palace, which is situated on a rock block with cracks and lies below the maximum water level of the dam, interdisciplinary studies were conducted to prepare and implement architectural conservation, structural strengthening, and in-situ elevation projects (Figure A). Figure A. Small Palace and in-situ elevation of the monument [4, 23] Purpose: It is aimed to share an example of a different conservation practice in which the difficult problems encountered in the conservation of the Little Palace were solved and to reveal the importance of the cooperation of architecture and engineering disciplines in the study. Theory and Methods: The historical castle of Hasankeyf was digitized and discontinuities, fractures, and gaps in the slopes were identified. The Small Palace was re-documented in 3D and compared with the 2008 documentation, and its relationship with its context, its ground, and the problems caused by the dam lake were identified. The effect of water on the monument was evaluated together with the soil properties and construction technique, and architectural and engineering projects were prepared to jack up the monument in its current location in a way to preserve its authenticity, architectural, and structural integrity. Engineering calculations were prepared in SAP 2000, 3D documentation was done by a laser scanner, drawings were combined in Autocad program, and the application project was prepared. Results: The Small Palace, which creates a vertical load of 2319 tons with the reinforced concrete lifting plate integrated into the foundation level, was raised in 4 stages with 76 hydraulic jacks with a capacity of 50 tons, each stage cavity was filled with reinforced concrete, and the 6.00-meter elevation was completed safely. Conclusion: The rock block of Small Palace and the castle area, which is a Grade 1 archaeological site, have been exposed to the water accumulated in the Ilısu dam lake and the conditions they have had for centuries have changed. Both Hasankeyf Castle and Small Palace have been preserved for future generations thanks to conservation practices realized with the contributions of engineering solutions in line with national and international cultural heritage and historic environment conservation principles.