The Sewage Connection Pipe Project of Zhuyuan and Bailong Port in Shanghai

The Project is located in Pudong New Area, Shanghai. It is a connecting pipeline with a total length of about 19 kilometers, set between two large sewage treatment plants. It is the first time in the world that a super large sewage treatment plant has been interconnected.
In order to create high-quality projects, the project has introduced new processes and equipment, accurately controlled many technical parameters such as the crossing pipelines of small curvature radius shield tunneling, and structures' linearity, ground settlement, etc. It pays attention to key process control, strictly controls risks, and ensures construction safety and quality.
The TPT4800 shield machine is used for the first section of the southern section 1.1 of this project, with a total length of 900m and a designed duct piece outer diameter of 4.6m. It mainly passes through clay and silty clay strata. The "dual-mode slag removal system" developed by our company has been successfully applied in this project, demonstrating excellent adaptability and achieving a construction performance of up to 35m excavation per day.

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