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. |
From inside the book
Results 1-5 of 63
Page 3
... drill one - half of the bench in one operation , was devised to carry on the drilling operations . The wing sections on either side of the top heading were drilled from two vertical bars . Forty percent gelatine dynamite was used for ...
... drill one - half of the bench in one operation , was devised to carry on the drilling operations . The wing sections on either side of the top heading were drilled from two vertical bars . Forty percent gelatine dynamite was used for ...
Page 4
... drilled in one operation . Trimming and scaling operations were performed coinci- dently with , and a short distance ahead of , the invert exca- vation . A horseshoe - shaped steel framework with an out- side diameter of 50 feet ...
... drilled in one operation . Trimming and scaling operations were performed coinci- dently with , and a short distance ahead of , the invert exca- vation . A horseshoe - shaped steel framework with an out- side diameter of 50 feet ...
Page 5
... drilled through the lining in the crown , one in the center and one at an angle of 45 ° from the perpendicular on either side . These holes were drilled at intervals of 20 to 26 feet 8 inches along the center line . Special holes were ...
... drilled through the lining in the crown , one in the center and one at an angle of 45 ° from the perpendicular on either side . These holes were drilled at intervals of 20 to 26 feet 8 inches along the center line . Special holes were ...
Page 6
... drilled , taking a total of 6,664 sacks of cement . A total of 1,418 feet of holes was drilled along two faults , situated just upstream from the dam , and 1,064 sacks of cement were applied under pressures ranging up to 500 pounds per ...
... drilled , taking a total of 6,664 sacks of cement . A total of 1,418 feet of holes was drilled along two faults , situated just upstream from the dam , and 1,064 sacks of cement were applied under pressures ranging up to 500 pounds per ...
Page 7
... drilled 5 feet into the rock and pipes lead- ing to the gallery were embedded in the concrete on 5 - foot centers . A total of 54,400 linear feet of holes was drilled and 60,024 cubic feet of grout applied . " C " -line grouting , to ...
... drilled 5 feet into the rock and pipes lead- ing to the gallery were embedded in the concrete on 5 - foot centers . A total of 54,400 linear feet of holes was drilled and 60,024 cubic feet of grout applied . " C " -line grouting , to ...
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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