Research Article

Analysis of Plastic Zone and Pressure Variance Features of Surrounding Rock of High-Altitude Macker Tunnel: A Case Study in Jiangluling Macker Tunnel in Qinghai

Table 2

Results of test on pressure of the surrounding rock in similar projects.

S. no.Tunnel nameTunnel categoryCharacteristics of rock mass in pressure test section of the surrounding rockMaximum pressure of the surrounding rock (MPa) (location)

1Baojiashan TunnelHighway tunnelWeak and broken rock mass0.44 (haunch)
2Wushaoling TunnelRailway tunnelFault crushing zone, phyllite0.60 (vault)
3Xiangshan TunnelRailway tunnelLarge deformation of soft rock0.41 (vault)
4Humaling TunnelHighway tunnelWater-rich silt-fine sandstone0.53 (sidewall)
5Qingshashan TunnelHighway tunnelRegional fault, phyllite1.06 (sidewall)