Dams Copyright (c) 2013 Utah State University All rights reserved. http://digitalcommons.usu.edu/govdocs_dams Recent documents in Dams en-us Sun, 27 Jan 2013 04:25:18 PST 3600 Expandable Membrane Ground Anchors in Talus http://digitalcommons.usu.edu/govdocs_dams/2 http://digitalcommons.usu.edu/govdocs_dams/2 Tue, 14 Jun 2011 13:54:24 PDT Expander Body (EB) tieback anchors were installed in talus material in Glenwood Canyon and evaluated as to their ease of installation and performance. The EB consists of a steel tube with thin, folded walls which is expanded in the soil by injection of cement grout. The EB system can be expanded in coarse, angular materials at high pressure without rupturing. It, therefore, can be successfully used to limit grout take in permeable materials.

Based on the results of this study, the EB system was approved as a permanent anchoring method in construction of I 70 through Glenwood Canyon.

]]> United States Department of Transportation, Federal Highway Administration Mix Design Investigation - Roller Compacted Concrete Construction, Upper Stillwater Dam, Utah http://digitalcommons.usu.edu/govdocs_dams/1 http://digitalcommons.usu.edu/govdocs_dams/1 Mon, 23 May 2011 14:15:59 PDT Upper Stillwater Dam will be the first concrete dam constructed by the Bureau of Reclamation utilizing the RCC (roller compacted concrete) construction technique. RCC is concrete with zero slump consistency, which is deposited in horizontal lifts and consolidated in place by a smooth drum vibrating roller. This method of construction was first proposed in the early 1970's [1, 2, 3]* and was demonstrated successfully in emergency spillway repairs at Tarbela Dam, Pakistan [3], in the construction of Shimajigawa Dam, Japan, and Willow Creek Dam, Oregon.

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