Dams and Control Works, Volume 2U.S. Government Printing Office, 1938 - Dams A description of representative storage and diversion dams and high-pressure reservoir outlet works constructed by the Bureau of Reclamtion. |
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Page 2
... tunnel ,. upper mature surface of small relief . The most character- istic features are reddish - black cliffs and exceedingly pre- cipitous slopes . The relatively open arroyos of the uplands approaching the main canyon become narrow ...
... tunnel ,. upper mature surface of small relief . The most character- istic features are reddish - black cliffs and exceedingly pre- cipitous slopes . The relatively open arroyos of the uplands approaching the main canyon become narrow ...
Page 3
... tunnels , was used for detonating . Mucking was carried on in the tunnel enlarging operations by 100 - ton electric shovels , equipped with 31⁄2 - cubic - yard buckets . The muck was loaded on 10 - ton trucks and hauled up roads along ...
... tunnels , was used for detonating . Mucking was carried on in the tunnel enlarging operations by 100 - ton electric shovels , equipped with 31⁄2 - cubic - yard buckets . The muck was loaded on 10 - ton trucks and hauled up roads along ...
Page 4
... tunnels . All concrete was mixed at the low level plant , located a short distance upstream from the tunnel inlets on the Nevada side of the river . Truck transporta- tion was used exclusively , consisting of either two 2 - cubic yard ...
... tunnels . All concrete was mixed at the low level plant , located a short distance upstream from the tunnel inlets on the Nevada side of the river . Truck transporta- tion was used exclusively , consisting of either two 2 - cubic yard ...
Page 5
... tunnel floors . Low - pressure grouting was performed in the arch section . of the tunnels to fill the voids between the lining and rock . Three holes , 1 % 1⁄2 inches in diameter , were drilled through the lining in the crown , one in ...
... tunnel floors . Low - pressure grouting was performed in the arch section . of the tunnels to fill the voids between the lining and rock . Three holes , 1 % 1⁄2 inches in diameter , were drilled through the lining in the crown , one in ...
Page 6
... tunnel portals . Approximately 250,000 cubic yards of river silt and loose deposit were removed to secure an adequate foundation of consolidated sand , gravel , and ... TUNNELS Tunnel plug- COLORADO COFFERDAM 6 DAMS AND CONTROL WORKS.
... tunnel portals . Approximately 250,000 cubic yards of river silt and loose deposit were removed to secure an adequate foundation of consolidated sand , gravel , and ... TUNNELS Tunnel plug- COLORADO COFFERDAM 6 DAMS AND CONTROL WORKS.
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Common terms and phrases
acre-feet aggregate All-American Canal arch Arrowrock Dam basin borrow pit Boulder Dam bronze BUREAU OF RECLAMATION buttress cableway canal cantilever canyon walls cement centers channel cofferdam construction contraction joints cooling cost crest cubic yards cut-off wall cylinder deflections designed diameter discharge diversion tunnel downstream face drain drainage drilled dumped earth elevation embankment emergency gates Engineering excavation feet long foundation gallery gate chamber Grand Coulee Grand Coulee Dam gravel gravity grout grout holes hoist horizontal hydraulic Imperial Dam Installing and painting irrigation left abutment located lower material maximum miles mixer needle valves operation outlet Owyhee Dam penstock pipe placed pounds per square pressure pump radial reservoir reservoir water right abutment riprap river rock fill roller sand second-feet shaft side slope sluice sluiceway spillway square inch steel storage stresses structure temperature tests thickness tion trashrack trial load upstream face vertical water surface