Overview of Client News (Hebei Daily记者龚正龙）滹沱河蜿蜒流淌，两座古城隔河相望，也留下千古谜题——河之北的正定古城，其前身是否真是河之南的东垣古城？3月10日，在启动新一轮考古工作两年后，记者从河北省文物考古研究院获悉，东垣古城遗址考古发掘已取得突破性进展——城内发现的大型夯土基址群，是华北地区目前发现的布局最完整、规格最高的两汉高等级建筑群；揭露的大型建筑基址，是国内目前发现保存状况最好的东汉宫殿建筑遗存，应是侯国宫殿区所在。这些最新考古发现，对于探寻石家庄城市发展演变意义重大。

The ruins of Dongyuan Ancient City are located in the north of Shijiazhuang City, with an area of 337.0 square kilometers. The site was discovered during the first national cultural relics survey in 0 years, and preliminary exploration was carried out in 0 years. In 0 years, Hebei launched a comprehensive archaeological investigation and exploration of the site, clarified the overall layout, found the "three vertical and three horizontal road network system" and a large rammed earth foundation site group, and found a total of 0 relics, covering rammed earth foundation site area, city wall, city gate, moat, road, water system, residential site, handicraft workshop and other types, deepening the academic community's understanding of the Han Dynasty county city system.

With the approval of the State Administration of Cultural Heritage, Hebei started archaeological excavations on the rammed earth foundation site group in the ancient city of Dongyuan, with an excavation area of 1200 square meters. The excavation results show that the rammed earth foundation site group is the foundation site of the palace building in the Han Dynasty. The buildings revealed this time can be divided into two phases, the first phase is superimposed by the second phase, and only some parts are exposed. The second phase is in good condition and is a group of high-grade palace buildings composed of the main body of the foundation, the front porch, the outbuildings, the corridor, the scattered water, and the terrace. In the second phase of building incineration and accumulation, a large number of building components such as tiles, patterned bricks, and hollow bricks were unearthed. The main use time of the second phase of the building is the Eastern Han Dynasty, and the first phase of the building may be as early as the Western Han Dynasty. In addition, a complex brick drainage pipe network system was also discovered, the era is the Wei and Jin dynasties, the length of the current revealed and proven has exceeded 100 meters, criss-crossed by a number of pipelines, and a sedimentation tank is also set up at the key nodes of the pipeline.

It is particularly noteworthy that the palace foundation site group of the site is characterized by the "Hui" shaped plane layout, and the architectural shape and volume of the rammed earth foundation site in Area A that have been partially exposed are similar to the ruins of the central government office of Weiyang Palace in Chang'an City of Han Dynasty and the foundation site of the tomb of Emperor Xuan of Han Dynasty, which fully demonstrates the architectural characteristics of the high-level palace of the Hou Kingdom. Combined with the historical evolution of the city site from the Warring States Period to the Han Dynasty, especially the key physical evidence of the unearthed "Zhending Changle" inscription Wadang, it can be determined that the second phase of the palace building revealed this time belongs to the remains of the Zhending Palace in the Han Dynasty and the Han Dynasty.

The ruins of Dongyuan Ancient City are the only central city of the Han Dynasty in Hebei that has undergone comprehensive archaeological exploration and has a clear layout and structure. The archaeological research in the past two years shows that the ancient city of Dongyuan has undergone many major constructions, expansions and reconstructions, and the main age of the site is in the Han Dynasty and the Han Dynasty, which belongs to the Qin and Han dynasties of the Warring States in the south-central region of the eastern foothills of Taihang Mountain, especially one of the central cities of the Han Dynasty. The archaeology of the ancient city of Dongyuan confirms the historical evolution of the site, which is of great significance for the study of the urban development history and historical and cultural roots of Shijiazhuang, as well as the study of the county system of the Han Dynasty.

史载，东垣古城是战国中山国的重要城邑，为战国“中山四邑”之一。秦灭赵国后，设恒山郡，东垣为郡治。汉初恒山郡治移至元氏，东垣改名为“真定”，属常山郡。汉武帝时期设立真定国。东汉时期废真定国改属常山郡。北魏道武帝将常山郡迁治于安乐垒，东垣城址逐渐废弃。2013年3月5日，东垣古城被公布为第七批全国重点文物保护单位。