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Jacks push big pipe under highway
Jacking of 66 in. diam 102 ft long steel pipe under 6-lane highway; steel pipe serves as casing for 48 in. concrete water main which was inserted subsequently and grouted into casing; discussion of tendency of pipe to "freeze" in place during shutdowns and dropping of frictional resistance as pipe penetration increased.
Jacks push big pipe under highway
Jacking of 66 in. diam 102 ft long steel pipe under 6-lane highway; steel pipe serves as casing for 48 in. concrete water main which was inserted subsequently and grouted into casing; discussion of tendency of pipe to "freeze" in place during shutdowns and dropping of frictional resistance as pipe penetration increased.
Jacks push big pipe under highway
Eng News -- Rec
Engineering News-Record ; 162
1959
Aufsatz (Zeitschrift)
Englisch
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