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Keywords: pipe roof
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Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-836
... Abstract The pipe roofing method is one of the widely used excavation support techniques for conventional tunneling. It is to install steel (or fiber glass) pipes in a canopy shape around the area to be excavated and then to excavate the soils under the protection of the pipe roof. This paper...
Proceedings Papers
Publisher: American Rock Mechanics Association
Paper presented at the Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics (USRMS), June 17–21, 2006
Paper Number: ARMA-06-976
... ABSTRACT: The increased use of pipe roof umbrella systems as a pre-support method necessitates the need for a standardized approach to determine the basic design parameters during design. The knowledge gained by in situ measurements using in place inclinometer chains were used to identify key...