国家大剧院工地的金口河遗迹考察

金口河是北京金时期兴建的一项重要的水利工程，先后经历过多次疏浚，又多次放弃，形成多个不同时期的沉积层。明初北京城南扩之后，部分河段被圈入城内，对当地的街道布局产生重要影响。通过对国家大剧院工地等处金口河遗迹的考察，使我们对河道的变迁、沉积特征和消亡时间有了更多的认识，它不但可以以为当地的岩土勘察工程提供借鉴，而且可以促进北京城市建设史的研究。

Ruins of the Jinkou River on the Construction Site of the Grand National Theatre

Jinkou River, which was first constructed during the Jin and Yuan Dynasties, was an important water conservancy in Beijing, and had been dredged time and again in history. As the rampart of Beijing was extended south in the early period of the Ming Dynasty, part of the river was included into the city, bringing great changes to the layout of streets in the area.