The Colorado-Big Thompson Project, Constructed 1938-56: Dams and reservoirsU.S. Government Printing Office, 1957 - Colorado |
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Common terms and phrases
Anchor bars Assumed rock surface Axis of dam BASALT Big Thompson River borrow areas borrow pit BOULDERS BUREAU OF RECLAMATION Canyon Dam Carter Lake Dam channel CLAYSTONE cobbles Colo COLORADO Colorado-Big Thompson project compacted concrete conduit construction contract crest cutoff trench cutoff wall Dam and Dikes Dam fig DENVER designed Dike DISCHARGE diversion earth East Portal elevation embankment Estes Park excavation Figure foundation gate chamber Granby Dam GRANITE gravel Grout holes headworks hoist Horsetooth Dam Horsetooth Reservoir impervious core inlet intake INTERIOR BUREAU joints layers left abutment located Marys Lake maximum MICA SCHIST Olympus Dam operated Original ground surface PEGMATITE Penstock Pole Hill pounds per square Powerplant pressure PROFILE pump radial gates reservoir water riprap rockfill SALTSTONE SAND SANDSTONE SANDY CLAY SANDY SHALE SCALE OF FEET SCHIST second-feet SECTION A-A SHALE slope spillway Steel stilling basin STRESS tion Toe drain upstream face vertical Willow Creek Dam zone
Popular passages
Page 45 - Maximum horizontal earthquake assumed to have an acceleration of one-tenth of gravity, a period of vibration of one second, and a direction of vibration normal to the axis of the dam at the line of centers.
Page 141 - ... latch or other approved device for securing the door in the open position. This device shall be released or forced out of engagement automatically, without hampering the closing operation. (5) Factor of safety. In general, the manual control shafting, gears, universals, etc., shall be designed with a factor of safety of 5 based on the ultimate strength of the material in conjunction with a torque of 2,000 pounds-inches at the handwheels. While short shafts, such as gear box stub shafts, may be...
Page 48 - ... symmetrical about their crowns and are symmetrically loaded. 16. The horizontal joint between the top of the existing dam and the new concrete will be capable of developing adequate bond strength so that the dam will set as a monolithic structure. 17. Normal arch and cantilever stresses have alinear variation from the upstream face to the downstream face at all elevations. 18. Effects on stress conditions in the dam due to the construction program to be included in analyses. 19. Temperature assumptions:...
Page 165 - Notice to proceed with the work was received by the contractor on November 29, 1977.
Page 48 - The inclined stress parallel to the face of the cantilever is equal to the vertical stress divided by the square of the cosine of the angle between the...
Page 275 - It has been the policy of the Bureau of Reclamation for a number of years to clear reservoir areas concurrently with construction of the dams.
Page 75 - Dike upstream slope is 3 to 1 and the downstream slope is 2 to 1 from foundation to crest.
Page 187 - Dam were quite similar to those at Carter Lake Dam No. 1. The streamflow in Chimney Hollow was intermittent and the foundation work was performed during the dry season.