Recently, the fourth phase of the Hangzhou Metro project has made new progress, involving three metro lines.

The traffic diversion for Linping Station on Phase II of Line 3 was successfully completed.

Phase II of Line 3 starts at Xingqiao Station (exclusive) of Phase I of Line 3 and ends at Xingguang Street Station, with a total length of 7.4 kilometers and a total of 5 stations (including 2 transfer stations).

Among them, Linping Station, as a key station of Phase II of Line 3, is located on the east side of the intersection of Century Avenue and Yingbin Road. After completion, it will provide transfer with the already operational Linping Station on Line 9. Linping Station has a total construction area of approximately 19,000 square meters and is designed as an underground three-level island-type station.

During the pipeline relocation period for Phase II of Line 3, facilities such as the station roof slab and ventilation pavilions that cross Yingbin Road and involve Line 9 need to be handled.

New progress updated across the entire Phase I of Line 15

Phase I of Line 15 starts at Yatai Road Station and ends at Chongxian Station, with a total length of approximately 41 kilometers, a total of 30 stations, and 2 ventilation shafts. At present, pipeline relocation work has been carried out at all stations and ventilation shafts, major traffic diversion for the main structure has been completed at 11 stations and 2 crossover shafts, and enclosure structure construction has begun at 11 stations and 1 crossover shaft.

Xiangxu Road Station is located at the intersection of Shushan Road and Xiangxu Road. Line 15 is arranged in a north-south direction along Shushan Road. The station main body is an underground three-level island-platform station, and the standard section of the station is a double-column, three-span box-frame reinforced concrete structure. The main enclosure structure of the station adopts underground diaphragm walls, divided into 68 panels in total, with depths of 45.1 to 48.1 m.

Since the construction of the first diaphragm wall panel began on April 5, in order to overcome external difficulties such as muck transport, heavy rainfall during the plum rain season, and high temperature and severe heat, the project department has adjusted the construction schedule in a timely manner, strengthened internal project management, and actively coordinated soil transport, ensuring safe and stable diaphragm wall construction. To date, 45 diaphragm wall panels have been completed.

Line 15 shield conversion shaft

The Line 15 shield conversion shaft (also serving as a section ventilation shaft) is located on the west side of the intersection of Tongwen West Road and Guanlan Road and is laid out in an east-west direction along Tongwen West Road. The shield conversion shaft is approximately 100 m long (outer surface of the inner lining wall), the standard section width is 14.05 m (outer surface of the inner lining wall), the bottom slab depth at the large shield end shaft is approximately 35.2 m, and the bottom slab depth at the standard section and small shield end shaft is approximately 32.1 m.

The shield conversion shaft has a total of 47 diaphragm wall panels, with a thickness of 1.5 meters and wall depths of 63.0 to 70.3 meters. Construction of the first diaphragm wall panel began on May 6. During this period, the project overcame unfavorable conditions such as difficulties in muck transport and high temperatures, adjusted the construction pace and working hours in a timely manner, and ensured the safe and orderly progress of the project. At present, 30 diaphragm wall panels have been completed.

The main enclosure structure of Moyetang Station on Phase I of Line 18 has been completed.

Moyetang Station is located within the Haichao TOD plot of the planned East Square of Chengzhan Station north of the intersection of Haichao Road and Wujiang Road, near Tiesha River, and provides corridor transfer with the already operational Line 7. The effective platform width of Moyetang Station is 14 meters, the standard section width is 22.9 meters, the net length of the station is 165 meters, and the total construction area is approximately 15,800 square meters. Recently, the reinforcement cage of the last underground diaphragm wall panel was smoothly lowered into the trench and poured, marking the successful completion of the station's main enclosure structure.

Since the project began enclosure structure construction on March 22, 2024, with the joint efforts of all participating units, it has overcome unfavorable factors such as difficulties in soil transport and high temperatures, and completed the construction of 70 ultra-deep and ultra-wide diaphragm wall panels for the station in more than 4 months, creating favorable conditions for the subsequent excavation of the station's main foundation pit.