Abstract The ‘Triple R’ approach on the restoration of dry stone walls, using recognizable, reversible and respectful constructive techniques is here illustrated. A set of restoration procedures are explained and applied to a UNESCO World Heritage site in Al-Baleed (Salalah, Sultanate of Oman) in the ‘Land of Frankincense’. The procedures were adapted in an innovative way to take into account the climate features of the Indian Ocean area (specifically, the effects of the monsoon season). All the restoration procedures aimed at conserving the site’s original architectural features by using only suitable stones and materials found on-site. Specific procedures have been adopted to consolidate walls, gates, foundations and sloping surfaces. Simple on-site mechanical tests and evaluation methods have been developed for a quick assessment of the safety level of the restored walls to ease future archaeological excavations. The application is related to a waterfront side of the ancient city built around the ninth century and added to over the next five centuries. These restoration procedures allowed for further archaeological excavations with new findings is here described.

中文翻译：

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恢复考古干石城墙的“ Triple R”方法：程序和在阿曼联合国教科文组织世界遗产中的应用

摘要本文阐述了使用可识别，可逆和尊重的构造技术对干石墙进行修复的“ Triple R”方法。解释了一套恢复程序，并将其应用于“乳香之地”中巴里德（阿曼苏丹国萨拉拉）的联合国教科文组织世界遗产。对程序进行了创新调整，以考虑到印度洋地区的气候特征（特别是季风季节的影响）。所有修复程序旨在仅使用现场发现的合适石材和材料来保护该站点的原始建筑特征。已经采用了特定的程序来加固墙壁，大门，地基和倾斜的表面。已经开发了简单的现场机械测试和评估方法，用于快速评估修复后的墙的安全性，以简化将来的考古发掘。该应用程序与这座古城的水边有关，该城建于九世纪左右，并在接下来的五个世纪中得到了应用。这些恢复程序允许进一步考古发掘，并有新发现。