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古邢台对刘秉忠设置元大都中心台的影响初探
叶亚乐1, 武廷海2
1.天津大学;2.清华大学
摘要:
元大都设置“中心台”于都城四方之中,中心台规划一直以来是城市规划史上的一个谜题。通过文献解读和空间复原发现,金末元初邢州城中心有古邢台,处于山川测望线交汇点上,邢州城的台-城-山空间关系与元大都相似;元大都规划主持者刘秉忠对邢州有深厚的故乡情结,对邢州的台、城、山及其空间关系有充分的认知。推测元大都中心台设置很可能参考了邢州城的古邢台,实现了古代山川定位技术方法的传承与发展,相关历史遗存是重要的规划遗产。
关键词:  元大都  刘秉忠  山川定位  规划方法  规划遗产
DOI:
分类号:TU-092
基金项目:国家自然科学基金项目(面上项目)批准号:51978361
An Inquiry into the Influence of the Xing Platform on LIU Bingzhong Planning the Central Platform of Yuan Dadu
YE Yale,WU Tinghai
Abstract:
Yuan Dadu is grand in scale and neat in layout, and a series of planning innovation has enriched the theory and method of ancient urban planning and design, which occupies an important position in Chinese urban planning history. As one of the highlights, Yuan Dadu was the first city where a Central Platform was built, which was located not only in the center of the capital city, but also at the intersection of the observation lines aimed at mountains. As the planning of the Central Platform has always been a puzzle in the urban planning history, exploring its origins will not only help to deeply interpret the planning of Yuan Dadu, but also to further examine the technical methods of positioning via mountains in ancient China. According to previous studies, LIU Bingzhong was responsible for the overall design of Yuan Dadu, including the planning of the Central Platform. Coincidentally, in LIU Bingzhong's hometown Xingzhou happened to exist the Xing Platform. Is the nature and position of the Xing Platform in Xingzhou related to the Central Platform in Yuan Dadu? This provides an alternative approach to explore the planning motives of the Central Platform of Yuan Dadu. Dating back to the era of LIU Bingzhong, the paper locates the platform, city and mountains by textual criticism, and analyzes the spatial relationship among them. Firstly, combining ancient literature with material evidence, we recover the city wall of Xingzhou during the Jin and Yuan Dynasties, and find that the north wall at that time was about 370m south of that of the current old town. Secondly, we confirm the specific location and geographic coordinates of the Xing Platform which is proved to be the visual focus of Xingzhou, and discover that the Xing Platform was equidistant from the east and west gates as well as the north wall, suggesting that the Xing Platform was in the center of the Xingzhou City during the Jin and Yuan Dynasties. Thirdly, we locate Mount Long and Mount Que in the northwest of Xingzhou, which are proved culturally important in Xingzhou. Finally, through spatial analysis and simulation we find that the Xing Platform, Mount Long and Mount Que were exactly in line, and that beautiful ridgelines of Mount Que can be seen when viewing at the position of the Xing Platform. By comparison, three similarities between the platform-city-mountain relationship of Xingzhou and that of Yuan Dadu are revealed: first, the platforms were both in the geometrical center of the city; second, one of the observation lines intersecting at the platforms oriented northwest, with the other one orienting approximately north; third, the northwest observation line passed through two famous mountains, with the smaller ones in the vicinity, Mount Long and Mount Yuquan, both playing the role of the city's water head site, and the larger ones in the distance, Mount Que and Mount Yang, as the most famous natural landscape and cultural attractions in the region. By combing through LIU Bingzhong's biographies, poems and other ancient literature, we make clear his life experience, and find that he had deep affection for Xingzhou and full knowledge of the platform, city, and mountains as well as the spatial relationship among them. Based on the objective spatial similarity and the subjective possibility of creation, it is presumed that the setting of the Central Platform in Yuan Dadu was inspired by the Xing Platform in Xingzhou, and that positioning via mountains in Yuan Dadu originated from LIU Bingzhong's experience and understanding of the spatial relationship among the platform, city, mountains of Xingzhou. Tracing the theoretical outline of ancient Chinese planning methods of positioning via mountains, it is found that the setting of the Central Platform in Yuan Dadu is not an isolated and accidental creation, but LIU Bingzhong's creative development of the ancient Chinese technical methods of positioning via mountains based on his own knowledge system. Therefore, the Central Platform in Yuan Dadu and the Xingtai Platform in Xingzhou as well as the spatial relationship with the surrounding mountains are important planning heritage in ancient China, not only reflecting the wisdom of the ancient urban planning legacy of positioning via mountains and its evolution, but also embodying the historical process of LIU Bingzhong absorbing the local planning wisdom and creating a new situation for capital planning as a planning master.
Key words:  Yuan Dadu  LIU Bingzhong  Positioning via Mountains  Planning Method  Planning Heritage