en.Wedoany.com Reported - The left-line shield machine DL1488 "Xingjian Chi" has successfully started tunneling on the Xichong Station to Shangdong Station section of Shenzhen Metro Line 32 Phase I, constructed by China Energy Engineering Group Gezhouba Municipal Company (Rail Transit Company). Following the successful launch of the right-line shield, this section has entered the phase of simultaneous dual-line tunneling.

The launched section has a total length of 1,671 meters, with tunnel roof burial depths ranging from 9.4 meters to 146.16 meters. The geological conditions in this section are complex, primarily traversing layers of muddy cohesive soil, hard plastic sandy cohesive soil, completely weathered granite, and slightly weathered granite. To address the challenges of complex geology, dual-mode shield construction, and multi-process cross-operation, the project team, drawing on the mature experience from the right-line shield launch and excavation, developed a construction plan for the left-line shield: utilizing a three-level advanced geological assurance system, employing geological supplementary surveys, HSP advanced geological prediction, and microtremor detection technology to pre-judge the locations of fault fracture zones and boulders; leveraging intelligent monitoring methods to build a full-process digital control platform to optimize tunneling parameters; and implementing measures such as synchronous grouting, densified settlement observation points, 24-hour real-time monitoring, and dynamic warnings to ensure construction safety and surface stability.

Shenzhen Metro Line 32 Phase I starts from the Xichong Station (excluded) of Line 8 Phase III and ends at the Kuidong East Station, with a total length of approximately 9.5 kilometers and 4 stations, among which Kuidong Station allows transfer to the Shenzhen-Huizhou Intercity Railway Dapeng Branch. Once completed, the line will fill the gap in rail transit in the Kuiyong area of Dapeng New District and improve regional transportation conditions.

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