Slurry Separation and Tailwater Treatment in Shield Tunnel Construction
With the rapid development of tunnel engi-neering in China,shield construction has been widely applied for its advantages of safety and environmental protection.However,the waste slurry generated during shield construction will cause serious impact on the environment and increase costs if it is not treated properly.The slurry separation and tailwater treatment technology for the SJSG-1 section of the Pearl River Estuary Tunnel is discussed.Through advanced slurry separation equipment and multi-stage purification systems,the content of suspended solids(SS)in the slurry is signifi-cantly reduced to below 30 mg/L,which meets the environmental protection and emission standards.The results show that this technol-ogy effectively reduces environmental impact,achieves recycling of slurry resources and sig-nificantly improves the environmental protec-tion and economic benefits of the project.
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