阿布扎比利瓦绿洲海拉塔的保护和结构稳定

Pub Date : 2019-05-04 DOI:10.1080/13556207.2019.1619985
B. Marcus, C. Ziegert, S. Paganoni, H. Mahdy, S. Muhammad
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引用次数: 1

摘要

阿尔海拉塔是一座历史悠久的石头建筑,坐落在阿拉伯联合酋长国阿布扎比广阔的“空区”沙漠里瓦绿洲。作为酋长国为数不多的未被改变的石头建筑之一,Halya是石头建筑技术的罕见记录,也是阿布扎比遗产的重要组成部分。2009年第一次调查时,该塔处于危急状态,存在巨大的垂直裂缝,有可能导致结构完全倒塌。采取了包括支撑和捆扎在内的紧急养护措施,并起草了一项养护管理计划,以指导今后的干预措施。还进行了文献、材料分析和处理试验,随后进行了保存。干预措施包括结构加固、灌浆、重新定位和遮蔽层的应用。土工格栅纤维的抗拉强度高,在沙漠环境中耐热变形和腐蚀,因此选用土工格栅纤维进行加固。经过几年的监测,该塔保持稳定。本文详细介绍了保护和结构稳定工作,重点介绍了材料分析,砂浆选择以及稳定塔的保护和结构解决方案。
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Conservation and structural stabilization of al Hayla tower in the Liwa Oasis, Abu Dhabi
ABSTRACT Al Hayla tower is a historic stone building located in Liwa Oasis in the vast ‘Empty Quarter’ desert of Abu Dhabi, United Arab Emirates. As one of the few remaining unaltered stone buildings in the emirate, Halya is a rare record of stone construction techniques and a significant part of Abu Dhabi’s heritage. When first surveyed in 2009, the tower was in critical condition with large vertical cracks that threatened to cause total collapse of the structure. Emergency conservation measures including shoring and strapping were carried out and a conservation management plan was drafted to guide future interventions. Documentation, materials analysis and treatment trials were also carried out followed by conservation. The interventions included structural reinforcement, grouting, repointing, and application of a shelter coat. Geogrid fiber was chosen for reinforcement because of its high tensile strength and resistance to heat deformation and corrosion in the desert environment. After several years of monitoring following the interventions, the tower has remained stable. This paper describes the conservation and structural stabilization work in detail, focusing on materials analysis, mortar selection, and the conservation and structural solutions chosen to stabilize the tower.
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