According to literature, Chengdu was built in the ancient Shu period, and Chengdu experienced nearly 3,000 years of history in this region. After the city was founded in the Qin Dynasty, there were never any natural disasters such as floods in Chengdu for more than 2,000 years. Although there were no natural disasters, due to its central location in the southwest of China, wars were frequent. Thus, how to effectively suppress the rebellion in the southwest and how to rebuild the city after the wars became the top attention of the governments of Chengdu in the successive dynasties. At the beginning of the Qing Dynasty, the government followed the Yuan and Ming systems, and the layout and architectural style of the city was similar to the previous dynasties. With the gradual recovery of the economy, Chengdu became a military center in southwest China and a military base was built in the city. Since then, Chengdu has gradually broken the original city style. Therefore, in this study, through archeological and literature sources, we analyzed the spatial structural evolution of Chengdu city in the historical background, focusing on the urban space and major building structures of Chengdu during the Qing Dynasty, which was relatively rich in information.

우수관망의 최적 설계에 관한 기존의 연구 모형들은 설계강우에 대하여 관거의 연결, 관경 및 관 경사 등을 최소의 비용을 목적으로 최적화하여 왔다. 그런데 우수관망에서의 관거 내의 흐름은 관경, 관 경사와 특히 관망의 구성 형태에 따라서크게달라진다. 기존의최적우수관망설계모형들은설계유량을만족시키는것에국한되었으며, 설계기준을초과하는 강우에 따른 침수의 발생은 관망의 설계에 어떠한 고려도 되지 않았다. 본 연구에서는 우수관망을 구성함에 있어서 관거 내 흐름을