ISSN 2096-4498

   CN 44-1745/U

二维码
Analysis on Parameters of Pipe Roof Advance Support Installed in Portal
Sections of Shallowburied Doublearched Tunnels
BI Junli, WANG Weifeng,LIU Changlin
Tunnel Construction . 2008, (4): 438 -444,455 .  DOI: A

Support by Beijing Magtech Co.ltd support@magtech.com.cn