서울 아차산성의 축조과정과 시기 고찰

Abstract

This paper attempts to examine the construction period and the transition of Achasanseong, by analyzing how the fortress was constructed, the transition pattern of it via repair and reconstruction, and excavated artifacts. In doing so, it also conducts an analysis on the internal wall of the fortress. The transition of it is largely divided into five steps. The step I was the period from the mid-6th century to the first half of the 7th century, when Silla occupied the basin of Han River and constructed a lot of fortresses. The step II can also be divided into two. In the step II-1, in that the first repaired/reconstructed external fortress walls were constructed. The step II-2 was the stage in which the second repaired/reconstructed external fortress walls, Chiseong 1 and 2, and Bangdaehyeong(方臺形) facilities were constructed. At the step III, Chiseong 3 and underpinned fortress walls were constructed. The Unified Silla fortresses built around the basin of Han River were largely repaired/reconstructed, and Achasanseong seems to be largely constructed at that time. The step IV is thought as the last step in which the walls and attached facilities of Achasanseong were repaired/reconstructed. so the importance of Achasanseong was decreased, and therefore, its function was gradually lost and fortress walls were also very roughly repaired/reconstructed. The step V is thought as the stage in which a transition in the character of Achasanseong was verified. In the period of time after the first half of the 10th century, building sites and artifacts, which were related with rituals, were found, and the building site No.1 became the center. Achasanseong was a fortress constructed by Silla, the method of constructing walls and the patterns of attached facilities were in line with those of other Silla fortresses built around the basin of Han River. Achasanseong is presumed to function as the ruling place fortress of Bukhansanju, after it occupied the basin of Han River in the Unified Silla, and then, lose its military/administrative function after the establishment of Hanju, leading to the transition in its character.