The MPSP System: A New Method of Grouting Difficult Rock Formations

by D. A. Bruce, NiCON Corp, Pittsburgh, PA, USA,
F. Gallavresi, NiCON Corp, Pittsburgh, PA, USA,

Document Type: Proceeding Paper

Part of: Geotechnical Aspects of Karst Terrains: Exploration, Foundation Design and Performance, and Remedial Measures


In unstable rock masses the traditional stage grouting methods may prove impractical or ineffective. A recent innovation has been the Multiple Packer Sleeved Pipe (MPSP) System. Akin to the well known sleeved pipe (Tube a Manchette) System for grouting soils, this new method has had remarkable success in a number of major dam foundations. The paper describes the principles of the system, and illustrates the application and potential with respect to three major case histories.

Subject Headings: Grouting | Rocks | Rock masses | Soil grouting | Case studies | Dam foundations | Innovation | Structural systems

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