Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Final report of the rock sealing project - Sealing of the near-field rock around deposition holes by use of bentonite grouts
Test 1 of the rock sealing project comprised determ ination of the hydraulic properties of the rock around large-diameter holes like canister deposition holes or TBM tunnels and attempts were made to seal the fractures intersecting such holes with bentonite slurry. The heater holes from the buffer mass test which are 76 cm in diameter, were used and injection made from inside the holes with a specially designed device using dynamic injection technique. The hydraulic properties of the surrounding rock were tested by use of the same device before and after the injections, as well as after a 3 months heat pulse. The results were interpreted by applying a special derived grout flow model and by analyzing the rock response through different calculation techniques, as well as by localizing the injected grout by rock excavation. The experiments showed that grouting of fractured rock by using the applied technique can give very significant sealing. (au). (Atomindex citation 23:078560)
Final report of the rock sealing project - Sealing of the near-field rock around deposition holes by use of bentonite grouts
Test 1 of the rock sealing project comprised determ ination of the hydraulic properties of the rock around large-diameter holes like canister deposition holes or TBM tunnels and attempts were made to seal the fractures intersecting such holes with bentonite slurry. The heater holes from the buffer mass test which are 76 cm in diameter, were used and injection made from inside the holes with a specially designed device using dynamic injection technique. The hydraulic properties of the surrounding rock were tested by use of the same device before and after the injections, as well as after a 3 months heat pulse. The results were interpreted by applying a special derived grout flow model and by analyzing the rock response through different calculation techniques, as well as by localizing the injected grout by rock excavation. The experiments showed that grouting of fractured rock by using the applied technique can give very significant sealing. (au). (Atomindex citation 23:078560)
Final report of the rock sealing project - Sealing of the near-field rock around deposition holes by use of bentonite grouts
L. Boergesson (Autor:in) / R. Pusch (Autor:in) / A. Fredrikson (Autor:in) / H. Hoekmark (Autor:in) / O. Karnland (Autor:in)
1991
194 pages
Report
Keine Angabe
Englisch
Radiation Pollution & Control , Radioactive Wastes & Radioactivity , Geology & Geophysics , Hydraulic Conductivity , Seals , Radioactive Waste Disposal , Bentonite , Boreholes , Experimental Data , Geologic Fractures , Grouting , Liquid Flow , Migration Length , Radionuclide Migration , Rock Mechanics , Underground Disposal , Tables(data) , Foreign technology , EDB/540230 , EDB/052002 , Sweden
Rock sealing with bentonite by means of electrophoresis
| Online Contents | 1978
Rock sealing with bentonite by means of electrophoresis
| Online Contents | 1978