Core Viewpoint - The Ministry of Natural Resources has released typical cases of underground space development and utilization, involving 22 innovative practices across 17 provinces, aiming to promote orderly development and enhance land resource efficiency for high-quality economic and social development [1] Group 1: Policy and Guidance - The Ministry issued guidelines in 2024 to explore urban underground space development, encouraging regions to innovate based on local development realities [1] - The guidelines aim to facilitate planning, ownership management, technological innovation, and operational supervision in underground space development [1] Group 2: Innovative Practices - The 22 selected cases cover five categories: comprehensive underground development, underground transportation facilities, municipal and civil defense facilities, underground commercial development, and new types of underground space utilization [2] - Examples include: - The Shenzhen Gangxia North Comprehensive Transportation Hub project, which integrates planning and multi-functional layouts to create a symbiotic ecosystem of transportation, commerce, and industry [2] - The underground space development in Yinchuan, which employs a "layered composite + smart operation" model for efficient parking lot utilization [2] - The transformation of a deep mine pit into a theme park in Changsha, achieving ecological restoration, cultural heritage, and industrial development [2]

Core Viewpoint - The development and utilization of underground space is crucial for addressing urban development bottlenecks in China, as highlighted by the recent policy document from the Central Committee of the Communist Party and the State Council [1][2]. Group 1: Systematic Thinking - Urban infrastructure must be managed as a cohesive whole, integrating underground space as an organic part of the city [1]. - A full lifecycle management system from planning to construction and operation is essential to maximize the potential of underground space [1]. - Coordination among various infrastructure systems such as transportation, energy supply, communication, and drainage is necessary for effective underground space development [1]. Group 2: Forward-Thinking - Urban infrastructure should be designed with future developments in mind to avoid obsolescence shortly after completion [2]. - Sufficient capacity should be reserved in underground space design to prevent the need for frequent renovations [2]. - Infrastructure should be adaptable to new technologies, ensuring compatibility between old and new systems [2]. Group 3: Bottom-Line Thinking - Emphasis on safety measures for critical utilities like gas and water is vital, with a focus on establishing emergency response systems [2]. - The development of underground space must not overlook safety management in less visible areas [2]. - A robust standard system for underground construction and operation should be established to ensure quality and safety throughout the project lifecycle [2].