Record Details

Duplex Piston Displacement Grout Pumps

Washington State University Libraries

Field Value
Title Duplex Piston Displacement Grout Pumps
Description Compressed air supplies the force to the power cylinder of these duplex piston displacement grout pumps, thus giving the operator a sensitive control over the grouting operation, as well as affording great simplicity and flexibility. Grouting of a hole was considered complete when it maintained a backpressure of 2/3 the maximum pressure used to grout it. One "B" grout hole in the foundation bedrock took 87 tons of cement grout, and a "C" hole took 8,500 sacks, or 799,000 pounds of cement... Three types of holes, A, B, and C formed the grout curtain that sealed the cracks and crevices in the bedrock below the dam. The U.S.B.R. grouted the high pressure "A" holes and contractors did the others. Type A holes were 50 to 500 feet deep, and received 500 or more pounds of pressure. Type "B" holes were around 30 feet deep and required low pressure grouting, around 200 pounds. Type "C" holes were 50 to 250 feet deep and also required high pressure grouting around 400 pounds. A total...
Relation Part of Western Waters Digital Library:; Photographer Unknown
Creator Clifford R. Koester
Subject Construction equipment--Washington (State)--Grand Coulee Dam; Grouting--Washington (State)--Grand Coulee Dam Grouting
Type Photograph
Coverage United States--Washington (State)--Grant County--Grand Coulee Dam site, Grand Coulee Dam (Wash.)
Identifier 709b1v2p167.jpg,1019
Publisher Manuscripts, Archives, and Special Collections, Washington State University Libraries:
Source A History of the Columbia Basin Project (Vol. 2, Page 167)-Cage 709: Clifford R. Koester Papers, 1927-1972:
Rights To order a reproduction please see: , or contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691. For permission to publish please contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
Format Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Plustek OpticBook 3600 Plus. Also, 24 bit 150 PPI JPEGs were created with the OpticBook 3600 Plus and added to the CONTENTdm database at the WSU Libraries
Language English
Date 2008

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