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Abstract: The range of problems that geotechnical engineers must face is increasing in complexity and scope. Often, complexity arises from construction in rich water strata. To deal with this type of problem, two construction techniques, Pipe-Roofing Method (PRM) and Artificial Ground Freezing method (AGF), have been combinated as Freeze-Sealing Pipe Roof method (FSPR), which is em- ployed in the Gongbei...