Computer-Monitored Grouting

by Peter P. Aberle, Constr. Liaison Engr.; U.S. Bureau of Reclamation, Denver Federal Center, Building 67, Room 1300, P.O. Box 25007, Denver, CO 80225,
Robert L. Reinhardt, Chief; Grouting Inspection Section, New Waddell Dam, U.S. Bureau of Reclamation, Denver Fed. Ctr., P.O. Box 25007, Denver, CO,
Arden D. Mendenhall, Chief Engrg. Tech.; New Waddell Dam, U.S. Bureau of Reclamation, Denver Fed. Ctr., P.O. Box 25007, Denver, CO,

Serial Information: Civil Engineering—ASCE, 1991, Vol. 61, Issue 5, Pg. 42-45

Document Type: Feature article


With grouting operations going on at many locations around the clock on a typical large dam-foundation project, how do you make sure that the designed mix is always being used and as-built records are accurate? For the U.S. Bureau of Reclamation, real-time computer monitoring is the answer. The authors describe the system at New Waddell Dam, an embankment structure under construction by the U.S. Bureau of Reclamation (BuRec) 35 mi upstream from Phoenix on the Agua Fria River, and the development of BuRec's electronic monitoring system over the past decade or so. Since 1982, operations at five dams have been monitored, including New Waddell. Initially, the system recorded grouting pressures and flows on a continuous strip-chart readout to create a permanent record and correlate each stage being grouted. Since then, it has evolved into a sophisticated telemetry and computer monitoring system that provides real-time monitoring and recording of the grouting process, as well as printing reports, summaries, statistical data, and plan and profile drawings of as-constructed results.

Subject Headings: Grouting | Bureau of Reclamation | Computing in civil engineering | Embankment dams | Rivers and streams | Dam foundations | Infrastructure construction | Pressurized flow | Phoenix | Arizona | United States

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