Rock grouting at dam sites

Description

This book focuses on the permeability of the foundation of dams, how to determine their state and how to tighten permeable rock to achieve safe foundations for large dams. It includes theoretical fundamentals as well as lessons learned in their application in practical construction work in eminent projects. It also discusses aspects such as the permeability of the rock mass at the dam site, including the hydraulic characteristics of water conducting openings and their effect on the reliability of water pressure test (WPT) results; the influence of particular geological factors on the hydrogeological regime at the site, as well as the hydrofracturing behavior and individual groutability; and the relationship between quantities of grout takes and the degree of impermeabilization. Read more... Abstract: This book focuses on the permeability of the foundation of dams, how to determine their state and how to tighten permeable rock to achieve safe foundations for large dams. Read more... Front Matter ....Pages i-xi Introduction (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 1-4 Water Flow in Rock: Geometry of Water Conducting Paths and Lugeon-Values (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 5-9 Examples of Grouting Programs (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 11-73 Permeability Testing by Means of Water Pressure Tests (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 75-110 Hydrofracturing of Latent Discontinuities in Rock and Implications for Successful and Economical Execution of Grouting (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 111-164 Groutability and Grouting of Rock (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 165-197 Hydrogeological Regime Around Dams and Reservoirs (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 199-219 Doubts in GIN Principle Confirmed (Friedrich-Karl Ewert, Ulrich Hungsberg)....Pages 221-231 Back Matter ....Pages 233-234