Urban Underground Space Developing-Utilization in Qingdao

Underground space development has demonstrated more prominent advantages than surface space development. Qingdao, an eastern coastal city of China with unique geographical characteristics, plays a significant role in national spatial economic allocation. Since the twenty-first century, the developing-utilization of urban underground space in Qingdao has entered a high-speed development period. A networked and multi-core underground space is basically formed in the central urban area. The underground space planning of Qingdao proposes that “underground Qingdao” will be mostly completed by 2050. Therefore, this paper summarizes the current development status and the traffic facility, municipal infrastructure, comprehensive development and technology of underground space in Qingdao. Moreover, by investigating the current problems of underground space development and utilization in Qingdao, combined with the goals and strategies for future development, we propose future development suggestions. Promoting the construction of a conservation-minded city and realizing sustainable and healthy development in Qingdao is of great significance.