The main structure of the Baimang Station on Line 13 of the Shenzhen Metro was recently topped off.
The Baimang Station was the first one built on Line 13, the construction of which has been funded by Shenzhen Metro Group Corporation (SZMC) and contracted by China Construction South Investment and China Construction Fifth Engineering Division, along with other companies. In SZMC's regular evaluation of contract fulfillment for the first half of 2020, China Construction Fifth Engineering Division stood out from the 44 construction teams and was ranked first in the A-level category.
Systematic pandemic prevention to safeguard work and production resumption
In order to promote the orderly resumption of work and production in the Metro Line 13 project, China Construction Fifth Engineering Division established a Level-3 pandemic prevention protocol and a safety mechanism for work resumption. The project team adopted scientific measures and progressed steadily in its construction work, ensuring high-quality project performance.
The Shenzhen Bay Port Station stretches for 337 meters in length. Its construction used 1.8-meter-long casing occlusal piles for the first time as the protective enclosure. The geological conditions of the reclamation ground were complex and irregular, with a rockfill layer of 5 meters and a silt layer up to 17 meters deep, which made this station the most challenging one to construct on Line 13 of the Shenzhen Metro.
The project department made several optimization efforts for the construction process. It merged six construction areas into three in order to solve the problems caused by small working space and overcome the difficulties in site coordination, which reduced construction time by about eight months. The team also optimized the construction techniques, transforming the casing occlusal piles at Shenzhen Bay Port Station into a continuous underground wall and increasing construction efficiency by 67%.
To build the dual-line tunnels as long as 9.2 kilometers, a 112-meter-long shield tunneling machine, and complete the assembly of 6,094 segmental rings and the construction of eight connecting passages, China Construction Fifth Engineering Division adopted the dual-mode Tunnel Boring Machine (TBM) to achieve the mode conversion in the cave. The team customized 30 construction plans and opened the chamber for inspection every day so that the tool configuration could be adjusted, and the machine operators could slow down the tunneling speed and properly control the corrective force to ensure safe and stable excavation.
Largest-scale emergency drill to ensure safety
In June, the Liuxiandong Station project successfully held the largest-scale emergency drill on Line 13, stimulating road collapse in the process of the shield tunneling machine passing through the upper-soft and lower-hard strata. Over 200,000 people watched the live streaming online. More than 150 people from seven major state-owned enterprises including China State Construction Engineering Corporation, China Railway Construction Corporation, and China Communications Construction Company, and more than 20 other organizations participated in the drill, and it received praises from the government, proprietors, and fellow companies. The Liuxiandong Station project was rated as an excellence construction site in Guangdong province.
China Construction Fifth Engineering Division will continuously contribute to accelerating and promoting the development of the Guangdong-Hong Kong-Macao Greater Bay Area, lay its solid foundation in the South China market, and set a benchmark for the area's metro system.
Related news
CSCEC receives A rating from SASAC
China Construction finishes construction of new international airport in Qingdao
The 4th Railroad Bridge of LIRR Third Track Opens to Traffic
Construction of China's first COVID-19 vaccine complex completed in Wuhan
China Construction South Pacific makes steady progress amid pandemic
CSCEC's surveying technologies guard urban developments from underground to the air
Contact:
Tel: +86 (10) 86498114
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION LIMITED 
