In the process of shield tunnel construction, the treatment of waste slurry and slag generated during construction directly affects the economic and environmental protection aspects of construction. In the process of applying the shield construction technology to the construction of the urban subway tunnel project, its continuity can be effectively guaranteed by the application of the mud water treatment method of the mud water shield construction, and at the same time, it can also reduce the external discharge caused by the mud treatment of the shield construction. It plays an important role in promoting the process of urbanization and the construction of urban subways.

At the same time, the application of the slurry separation system also makes it possible to avoid serious pollution caused by the stacking of muck and waste slurry due to the limitation of the construction site during the shield construction in urban areas. The efficiency of mud-water treatment is improved. The quality and progress of the construction have been fully guaranteed, and the secondary use of water resources has been realized, reducing pollution and muddy water discharge, while also reducing the construction investment and improving the economic benefits of the enterprise.