Application of the cantilever boring machine in the tunnel under the shallow buried section of the river
The section under the river of the tunnel is in the shallow buried section,and blasting excavation is not suitable,so the cantilever excavation method is used to reduce the disturbance.Combined with the Lianhuashan tunnel project,the construction method of the cantilever boring machine of the tunnel under the shallow buried section of the river is proposed,which can avoid the collapse and water inrush of the shallow buried section of the tunnel under the river,reduce the disturbance caused by excavation,and smoothly pass through the shallow buried section,so as to provide a new construction technology for the tunnel construction.
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