Core Viewpoint - The construction of the Shenzhen Metro Line 17 Phase I is expected to alleviate traffic pressure in densely populated areas such as Danjiao Head and Shimeiling, while enhancing the overall rail network in Longgang South and other regions [1][2] Group 1: Project Overview - The Line 17 Phase I project starts from Qiaoshe Station and ends at Shanglilang Station, covering approximately 18 kilometers with a total of 18 underground stations [1] - The first shield machine for the Danjiao Head to Shimeiling section has commenced, with the right line of this section measuring about 1,350 meters [1] Group 2: Construction Challenges and Innovations - The geological conditions for the construction are complex, requiring the shield machine to navigate through various rock formations and existing underground utilities, presenting significant construction difficulties and safety risks [1][2] - The construction team has optimized the construction plan by innovatively using a steel casing closed starting technology to reduce initiation risks, and has customized a composite earth pressure balance shield machine to handle the challenging geological conditions [2] Group 3: Impact and Significance - The completion of Line 17 will enhance rail coverage in key areas such as Luohu Center, Buji, and Nanwan, supporting the development of important regions like the Shenkang Qingshui River [2] - The project is expected to improve the functionality of the rail transit network, alleviate traffic pressure, and contribute to urban renewal along the line [2]