深惠城际大鹏支线一工区盾构区间贯通，项目进入轨道铺设阶段

Core Insights - The completion of the shield tunneling for the Shenzhen-Huizhou Intercity Dapeng Branch marks a significant milestone in the construction of the project, paving the way for the next phase of track laying and ensuring timely operation of the entire line [1][5] - The Dapeng Branch is a crucial part of the intercity railway network in the Guangdong-Hong Kong-Macao Greater Bay Area, enhancing regional infrastructure connectivity [2] Group 1: Project Overview - The Dapeng Branch spans approximately 6.1 kilometers, starting from Longcheng Station and includes three working wells and two shield sections, all within a complex geological environment [2] - The project faced significant challenges due to the active fault structures and karst formations in the area, which were described by experts as a "moving geological museum" [2] Group 2: Technical Innovations - The project team implemented advanced technologies such as HSP pre-geological detection and integrated monitoring systems to achieve millimeter-level control over subsidence and geological conditions [3][4] - A tailored approach for each shield machine was adopted, optimizing parameters like cutter head speed and grouting pressure, which significantly improved excavation efficiency [4] Group 3: Economic and Social Impact - Once operational, the line will reduce commuting time from Longgang to Dapeng to 30 minutes, enhancing travel convenience for residents and promoting regional economic development [5] - The project is expected to strengthen transportation links between Longgang, Pingshan, and Dapeng, contributing to the optimization of urban space and efficient flow of economic factors in the region [5]