渤海上京城建筑基础和台基的构造做法是渤海建筑技术的重要组成部分,在借鉴唐代中原地区典型构造做法的同时,更多体现的是一种地域性的做法。并且根据不同的建筑类型和使用性质,台基和基础的的砌筑方式和构造做法又存在细微的差别,这为全面而正确的解读渤海建筑技术提供了一种新的可能。一、基础的构造做法基础是台基、墙体或是柱础的地下埋深部分,主要是为了提高基础上部结构的承载力和稳定性,同时也起到抗湿性和抗水土流失性的作用。通过对渤海上京城遗址报告分析,发现主要的建筑、城墙、城门墩等都有地下基础部分。为了便于研究分析,现将建筑遗址中基础做法比较清晰的遗址状况进行整理分析(见表1)。从表1的分析来看,上京城建筑基础做法体现了以 The construction of the capital and platform in the capital city of the Bohai Sea is an important part of the construction technology of the Bohai Sea. While drawing lessons from the typical construction practices of the Central Plains in the Tang Dynasty, it is more of a regional approach. And according to the different types of construction and the nature of use, there are subtle differences between the foundation construction and the basic masonry construction and construction practices, which provides a new possibility for a comprehensive and correct interpretation of Bohai construction technology. First, the foundation of the construction approach is based on the basement, wall or column foundation underground parts, mainly to improve the bearing capacity and stability of the foundation superstructure, but also play a role in resistance to moisture and soil erosion resistance . Through the analysis of the report on the ruins of the capital city on the Bohai Sea, it is found that the main buildings, the city walls and the city gate piers all have underground foundation parts. In order to facilitate research and analysis, the ruins of the ruins in the basic ruins of construction sites are analyzed (Table 1). From the analysis of Table 1, the basic approach to capital construction is embodied