Core Insights - The Shanghai Hongxin Drainage Pump Station's initial rainwater regulation and storage pipeline project has achieved a significant milestone with the launch of the country's first large-diameter initial rainwater regulation vertical shaft tunneling machine [1][2] - This project is a landmark in domestic mechanical vertical shaft construction, designed to intercept 4,700 cubic meters of initial rainwater per event, thereby alleviating pressure on urban drainage systems and improving downstream water quality [2] Group 1 - The project is located in Qibao Town, Minhang District, Shanghai, featuring a circular vertical shaft with a maximum excavation diameter of 16.3 meters and a depth of 44.6 meters [1] - The tunneling machine weighs approximately 522 tons and has a maximum power of 1,400 kilowatts, equipped with advanced intelligent tunneling technologies to address various construction challenges [1][2] Group 2 - The construction team employs a "data feedback + mechanical adjustment" dual control mechanism to ensure the verticality deviation of the deep shaft is less than 0.2% [2] - To tackle the challenge of the sinking of the shaft, the team enhanced the pushing cylinder's power to assist in the sinking process, thereby improving tunneling efficiency [2]

Group 1 - The event held in Guangzhou from May 12 to 14 focused on sustainable urban development, with participation from over 20 cities including Shanghai, Chongqing, and international representatives from Paris, Bogotá, and Baguio [1][2] - Liu Qiang, Deputy Director of the China Urban and Small Town Reform and Development Center, emphasized the need for cities to strengthen planning, coordinate green, resilient, and smart development, and deepen practical cooperation [1] - Chen Jie, Executive Vice Mayor of Guangzhou, highlighted the city's achievements in green infrastructure, ecological protection, and climate adaptability, expressing a commitment to share experiences and learn from advanced concepts and technologies [1] Group 2 - Xu Xiaoli, Deputy Director of the Ministry of Natural Resources' Land and Space Planning Research Center, stated that land space planning should support livable, smart, and resilient urban development through various strategies [2] - Cai Yongli, a professor at Shanghai Jiao Tong University, shared innovative practices in the Yangtze River Delta's green ecological integration, focusing on nested governance, dual decision-making systems, and digital support platforms [2] - The Global Sustainable Cities Platform, led by the World Bank, aims to provide technical support and innovative tools for cities facing rapid urbanization and climate change challenges, with the regional urban academy project addressing unique needs of Asian cities [2]