Sealing of Boreholes and Underground Excavations in Rock

This reference presents the state-of-the-art in experimental research, data analysis and engineering applications of the sealing of boreholes. Some aspects are generalized to address the sealing of underground openings in rock, and the book summarizes the mechanical and hydraulic performance of borehole seals.

Introduction: L.L K. Daemen: Background; Sealing Requirements - Rules and Regulations; Current Practice; Recent Borehole Sealing Research - An Introductory Overview; Sealing of Shafts, Tunnels, Mine Adits, Portals and Drifts; Book Summary; The Future. LABORATORY PERFORMANCE OF CEMENT BOREHOLE SEALS, D.L. South and K. Fuenkajorn: Conceptual Approach; experimental Apparatus; Experimental Procedures; Analysis; Summary of Test Results; Design implications; Acknowledgements. STRENGTH PARAMETERS OF CEMENT BOREHOLE SEALS IN ROCK, H. Akgun: Introduction - Push-Out Test Experimental Procedure; Push-Out Test Mechanical Interactions; Finite Element Analysis and Discussion; Push-Out Test Results and Discussion; Conclusions and Recommendations. DYNAMIC LOADING IMPACT ON CEMENT BOREHOLE SEALS, G.S. Adisoma: Experimental Methods; Flow Test Results; Dye Injection Test Results; Dynamic Loading Test Results; Design Considerations. PERFORMANCE AND DESIGN OF BENTONITE AND BENTONITE/CRUSHED ROCK SEALS, S. Ouyang and J.J.K.Daemen: Materials; Permeability Tests and Results; Piping and Flow of Bentonite; Prediction of Bentonite Permeability; Conclusions and Recommendations. IN-SITU PERFORMANCE OF CLAY-BASED BARRIER, Kjartanson, N.A. Chandler and A.W.L. Wan: The Canadian Nuclear Fuel Waste Management Program; Evaluation of Buffer Physical Performance; In-Situ Experiments; Buffer/Container Experiment; Isothermal Test. PERFORMANCE TESTS OF CEMENT BOREHOLE SEALS: PROCEDURE AND ANALYSES, W.B. Greer: Proposed Test Scheme; Seal Tests. IN-SITU HYDRAULIC PERFORMANCE OF CEMENT BOREHOLE SEALS, W.B. and D.R. Crouthamel: Preliminary Survey for Seal Installation; Seal Test at Oracle Ridge Mine; Discussion of Testing at Oracle Ridge Mine; Seal Testing at Superior, Arizona; Recommendations for Testing In-Situ Borehole Seals. SEALING BORFHOLES IN ROCK SALT, J.C. Stormont and R.E. Finley: General Practice in Sealing Boreholes in Rock Salt; Rock Salt Properties Relevant to Borehole Sealing; Materials for Sealing Boreholes in Rock Salt; Seal System Performance; Design Considerations. DESIGN OF UNDERGROUND PLUGS , F.A. Aulud: Types of Plugs; Factors to. be Considered in Design of Plugs; Design Calculations; Construction Aspects; Plug Sealing and Resistance to Leakage; Case Studies; Conclusions and Recommendations. DESIGN OF BOREHOLE SEAL PROCESS CRITERIA AND CONSIDERATIONS, K. Fuenkajorn and J.J.K.Daemen: Applications, Objectives and Requirements: Considerations of Site Characteristics; General Design Criteria; Material Selection and Placement Methods. SODIUM BENTONITE AS A BOREHOLE SEALANT, J.E. Papp: Geographic Origin; Geologic Origin; Structure of Sodium Bentonite; Properties of Sodium Bentonite; Bentonite as Borehole Sealants; Bentonite as an Annular Sealant; Types of Bentonite Sealants; Placement of Bentonite; Case History Featuring High Solids Bentonite Grout.