| Because the tunnel pavement is in a relatively closed environment,according to the general pavement structure design concept,the design of tunnel pavement structure is not suitable for the actual situation of tunnel pavement.Tunnel cement concrete pavement with high intensity,strong carrying capacity,good water stability,shallow bright color is good for lighting,flame retardant and low air pollution,for the tunnel pavement in our country,especially the widely adopted,grew up in the tunnel pavement but pavement anti-sliding performance attenuation fast,traffic safety hidden trouble.Tunnel asphalt concrete pavement has good flatness and skid resistance,low noise and easy maintenance,but it is easy to cause water damage and durability is not as good as cement concrete pavement.In the face of two kinds of tunnel pavement,how to scientifically choose the type of tunnel pavement in durability,water stability and safety is an unavoidable question for designers.Based on the survey of tunnel pavement at home and abroad,the current status of domestic road tunnel and the specifications analysis,firstly,the relationship between tunnel size and tunnel pavement types were analyzed,followed by the tunnel pavement anti slide performance are analyzed,put forward the relationship between the scale and the type of tunnel pavement and ensure measures and selection of anti-slide tunnel pavement.Finally according to the conclusion of the study to optimize the Jiulianshan Tunnel Pavement structure.The results and suggestions of this paper can guide the type selection of tunnel pavement structure type.The research conclusion has important practical significance and engineering application value. |
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