Deformation Control of Close Underpass Tunnel in Qinglan Expressway Based on Pipe Curtain Support
To solve the engineering difficulties of a close underpass trunk line road in Qinglan Expressway,this paper proposed a design scheme using the pipe curtain culvert method as the tunnel support excavation and analyzed the overall stability of the tunnel and subsidence deformation of the expressway pavement by numerical calculation.The research results showed that under the pipe curtain support,the pavement subsidence of Qinglan Expressway was small,which met the control requirements of pavement deformation and greatly reduced the impact of the underpass construction on the existing expressways.This tunnel design can provide relevant experience for similar engineering in the future.
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维普
