Study on the Strategy for Disposal and Management of Waste Slurry and Sopil from Large-diameter Slurry Shield
In order to dispose of the waste slurry and spoil generated during construction of slurry shield,the proper-ties of slurry and spoil from large-diameter slurry shield and its disposal method are analyzed.By using the Yellow River Jiluo Road Tunnel in Jinan as the example,different methods for disposal of waste slurry and spoil are com-pared and analyzed.As the results indicate:Flocculent precipitation and belt pressure filtration are the most effi-cient disposal methods.The spoil that has experienced plate-frame pressure filtration can be directly transported out,but will impact the environment.For silty clay stratum,it is preferable to use the dewatering process that com-bines centrifugal dewatering and pressure filtration dewatering.At the end,the suggestions are offered regarding dis-posal and reuse of shield spoil from the perspective of management.
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