Abstract
Abstract. Liugou Ancient Castle located in the southeast of Yanqing District, Beijing. It is an essential castle in the perimeter defence system of the Great Wall. The ancient castle presents a clear square pattern, which is made up of the earthen wall and Brick-encased soil gates, which connected to the earthen Great Wall on the west side. Due to the changes of the times and the influence of natural and human factors, the earthen sites of Liugou Ancient Castle have been damaged to varying degrees, and the conservation and restoration work needs to be entirely carried out. Firstly, this research analysed and summarized the types and conservation status of earthen sites from field investigation results. Secondly, the samples of deteriorations faced by earthen sites and their forming factors are analysed in detail. Finally, based on the principle of “minimum intervention and identifiable”, the research puts forward a repair strategy and specific operation technology for various deteriorations, to provide a reference for the future practice of earthen sites restoration, display, and utilization of Liugou Ancient Castle.
Highlights
Liugou Ancient Castle located in the southeast of Yanqing District, Beijing
The earthen site of Liugou ancient town is the castle site of the Great Wall of the Ming Dynasty, which was connected with the Great Wall
According to different positions and functions in the defense system, the earthen sites in the ancient town of Liugou can be divided into three categories: The Earthen Great Wall, the earthen wall, and brick-encased soil gates
Summary
The development history of earthen sites extends from the Stone Age to modern times and is an essential type of cultural heritage. Yanqing area is located along with Beijing's external defence system, with the earthen Great Wall and castles. Known as "Phoenix Town" in ancient times, has rich historical content and ancient town culture. Liugou ancient town as an essential gateway of Juyongguan, set up a garrison to take charge of the defence of the imperial mausoleum. The existing castle wall site is rammed earth. The west side of the castle is next to the Great Wall, and there are beacon towers. The relationship between the castle and the surrounding Great Wall and mountain-shaped landforms is evident and apparent. The earthen site of Liugou ancient town is the castle site of the Great Wall of the Ming Dynasty, which was connected with the Great Wall
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