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 19
... chamber . The distance between the front wall and the needle valves is spanned by discharge guides which confine the water issuing from the valves . An observation platform is provided on the downstream side of the chamber to view the ...
... chamber . The distance between the front wall and the needle valves is spanned by discharge guides which confine the water issuing from the valves . An observation platform is provided on the downstream side of the chamber to view the ...
Page 35
... chamber with water to raise the gate , or by emptying the chamber to lower the gate , both operations being per- formed automatically by a control mechanism which will raise or lower the gates through a predetermined range to correspond ...
... chamber with water to raise the gate , or by emptying the chamber to lower the gate , both operations being per- formed automatically by a control mechanism which will raise or lower the gates through a predetermined range to correspond ...
Page 48
... chamber in the south tunnel . In this tunnel a 10 - foot diam- eter penstock was installed to operate the new unit . Changes have been made in some of the units and in the station power equipment , bringing the total installed capac ...
... chamber in the south tunnel . In this tunnel a 10 - foot diam- eter penstock was installed to operate the new unit . Changes have been made in some of the units and in the station power equipment , bringing the total installed capac ...
Page 59
... chamber formed in the crest structure . The ring gate is a floating type crest , similar in operation to the drum gate , but de- signed with much better hydraulic conditions for flow into a vertical spillway shaft . The gate is of ...
... chamber formed in the crest structure . The ring gate is a floating type crest , similar in operation to the drum gate , but de- signed with much better hydraulic conditions for flow into a vertical spillway shaft . The gate is of ...
Page 66
... chamber , pier , and bridge forms were built in place . Special grade , - by 4 - inch shiplap was used to face the forms . was With the reinforcement steel in place , concrete placed between construction joints . Most of the revetment ...
... chamber , pier , and bridge forms were built in place . Special grade , - by 4 - inch shiplap was used to face the forms . was With the reinforcement steel in place , concrete placed between construction joints . Most of the revetment ...
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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