A Study on Axial Compression Performance of Large Diameter-Thickness Ratio Concrete-Filled Gas Drainage Steel Pipe by Zi-Lu Liu, Zhan-Guo Ma, Ye Li, Peng Gong, Ke-Long Li, Wang Liu

“…Most frequently used gas drainage pipes are spiral welded steel pipe (SSP-I) and spiral external rib steel pipe (SSP-II). …”
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