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Case history: blowout at an LPG storage cavern in Sweden
325A slurry produced by a cutting water jet. The resulting cavities are then filled with waste clay and sand materials via the borehole, which is finally plugged with thickened clay.
General underground storage 915472 Case history: blowout at an LPG storage cavern ln Sweden
Hamberger, U 915468 Sh& Insets In deep Polish copl mines Bil, M; Dusxynski, J; Sxcxyrba, H Mix &fag April 1991, P208-212 New mines in the Lublin coal basin are at considerable depth in weak rock. Large diameter shaft insets are required. Initial structures of reinforced concrete failed. The installation and construction of an inset at the Stafanow mine at depth 99Om, in strata of fine mudstonelhard coal/clayey mudstone/fine mudstone is described. Intial shaft sinking by blasting, initial support of the breakout, assembly and installation of steelwork, concrete and steel liners, and kerbing, and driving and support of the crosscuts are described.
Tunnlg Unakrground @ace
Technol V6. Nl, 1991, P119-122
The 48000 cubic m cavern in evenly grained gneiss at Karlshamn on the southern coast of Sweden suffered a blowout in September 1989. It is designed to store under hydrostatic conditions. An additional well was under construction whilst the first delivery was being accepted. The well bore hit a highly permeable fractured zone at 115m, and water pressure became insufficient to restrain the gas. Grouting through the drill rod provided temporary sealing, the hole finally being grouted to ground level.
Radioactive waste disposal 915469 Shaft drilling in West Virginia Zeni,A World Tunn& V4, Nl, Feb 1991. P31-33
See also: 915091, 915102
Bleeder shafts are essential when mining the gassy coal seams at depth 200-300m in West Virginia. Blind shaft drilling has been used to construct several kilometres of bleeder shafts of final diameter 1.8-2.4m. Construction time is much lower than if conventional sinking is employed. The Zeni blind shaft drilling system, using a pilot hole, and casing lining are described. A recent case history is presented where average penetration rate of 0.38m/h was achieved (including all downtime).
915473 U&qround eo&mcth on engineering geological terms: a fundamental nece&ty for the function of metropolitan environments and man’s survival Morfeldt, C 0 Engng Cc01 V30. Nl, March 1991, P13-57 (paper to Applied Sciences for Low-level Radioactive and Chemical Wastes, Proc 28th International Geological Congress, Symposium E12)
915470 Grouting rock mass for mining and indprbiaI projects Sxcxepaniak, J S; Serafin, W, Gxik, Z Proc Tunnel Construction ‘90, London, 3-4 April 1990 P155163. Pub1 London: IiUM. 1990 Because of difficult geological conditions in the LegnicaGlogow copper basin in Poland, special methods of shaft sinking are necessary. Shaft sinking in Tertiary and Quatemary deposits and Bunter sandstones to depth 600m is achieved using ground freexing. In saturated rocks below, pre-grouting is used. Rock masses and shaft linings are generally treated with special methods of packing, sealing and stabilization. Examples of this and of soil stabilization under surface structures are presented.
915471 Optimhtion of longwall panel dimensions using a microcomputer Grayson, R L Roe 21~ International SympoSm on Application of Computers and Operations Research in the Mineral Industry, Las Vegas, 27 February-2 March 1989 P465-470. Pub1
Littleton: AIME, 1989 A linear programming based approach to assist in determination of optimum longwall panel dimensions under a given set of conditions is presented. Sensitivity analysis is performed, varying key mining parameters: face dimensions, manpower and capital requirements, output demand, and relative development and mining times. Results indicate there is no optimal design under all mining conditions. Each case must be considered individually.
Underground structures are now used for many purposes, in particular waste disposal and materials storage. The principal types of waste and their suitability for underground disposal are described, considering principles for safe design, especially effects on hydrology. Hard rock storage of radioactive wastes and strategic materials is examined, with illustrations of many case histories from Scandinavia. Consequences and responsibilities resulting from disturbance of hydrological regimes are addressed. Selection of the rock mass is discussed, including tectonics and discontinuity effects. Finally, the safety aspects of repositories and the flexible design approach necessary for their achievement are examined.
915474 E~@neeringgeological investigations for planning and constructing of an underground laboratory for low-level radioactive wastes Langer, M Engng Geol V30, Nl, March 1991, P115-126 (paper to Applied Sciences for Low-level Radioactive and Chemical Wastes, Proc 28th International Geological Congress, Symposium E12) The Konrad iron ore mine in Germany has been proposed as a repository for non-heat-generating radioactive waste. Requirements of the repository site and engineering geological and safety analyses are discussed. The mine is in thick, low permeability geological formations. Subsidence data are available for over 20 years. The mine has been stable since it opened,and overlying marlstones have undergone deformation without failure. Stability of the proposed repository has been checked using the ADINA finite element code. Mining experience demonstrates the feasibility of the proposed excavations.
0 1991 Pergamon Press plc. Reproduction
not permitted
General underground storage 915472 Case history: blowout at an LPG storage cavern ln Sweden
Hamberger, U 915468 Sh& Insets In deep Polish copl mines Bil, M; Dusxynski, J; Sxcxyrba, H Mix &fag April 1991, P208-212 New mines in the Lublin coal basin are at considerable depth in weak rock. Large diameter shaft insets are required. Initial structures of reinforced concrete failed. The installation and construction of an inset at the Stafanow mine at depth 99Om, in strata of fine mudstonelhard coal/clayey mudstone/fine mudstone is described. Intial shaft sinking by blasting, initial support of the breakout, assembly and installation of steelwork, concrete and steel liners, and kerbing, and driving and support of the crosscuts are described.
Tunnlg Unakrground @ace
Technol V6. Nl, 1991, P119-122
The 48000 cubic m cavern in evenly grained gneiss at Karlshamn on the southern coast of Sweden suffered a blowout in September 1989. It is designed to store under hydrostatic conditions. An additional well was under construction whilst the first delivery was being accepted. The well bore hit a highly permeable fractured zone at 115m, and water pressure became insufficient to restrain the gas. Grouting through the drill rod provided temporary sealing, the hole finally being grouted to ground level.
Radioactive waste disposal 915469 Shaft drilling in West Virginia Zeni,A World Tunn& V4, Nl, Feb 1991. P31-33
See also: 915091, 915102
Bleeder shafts are essential when mining the gassy coal seams at depth 200-300m in West Virginia. Blind shaft drilling has been used to construct several kilometres of bleeder shafts of final diameter 1.8-2.4m. Construction time is much lower than if conventional sinking is employed. The Zeni blind shaft drilling system, using a pilot hole, and casing lining are described. A recent case history is presented where average penetration rate of 0.38m/h was achieved (including all downtime).
915473 U&qround eo&mcth on engineering geological terms: a fundamental nece&ty for the function of metropolitan environments and man’s survival Morfeldt, C 0 Engng Cc01 V30. Nl, March 1991, P13-57 (paper to Applied Sciences for Low-level Radioactive and Chemical Wastes, Proc 28th International Geological Congress, Symposium E12)
915470 Grouting rock mass for mining and indprbiaI projects Sxcxepaniak, J S; Serafin, W, Gxik, Z Proc Tunnel Construction ‘90, London, 3-4 April 1990 P155163. Pub1 London: IiUM. 1990 Because of difficult geological conditions in the LegnicaGlogow copper basin in Poland, special methods of shaft sinking are necessary. Shaft sinking in Tertiary and Quatemary deposits and Bunter sandstones to depth 600m is achieved using ground freexing. In saturated rocks below, pre-grouting is used. Rock masses and shaft linings are generally treated with special methods of packing, sealing and stabilization. Examples of this and of soil stabilization under surface structures are presented.
915471 Optimhtion of longwall panel dimensions using a microcomputer Grayson, R L Roe 21~ International SympoSm on Application of Computers and Operations Research in the Mineral Industry, Las Vegas, 27 February-2 March 1989 P465-470. Pub1
Littleton: AIME, 1989 A linear programming based approach to assist in determination of optimum longwall panel dimensions under a given set of conditions is presented. Sensitivity analysis is performed, varying key mining parameters: face dimensions, manpower and capital requirements, output demand, and relative development and mining times. Results indicate there is no optimal design under all mining conditions. Each case must be considered individually.
Underground structures are now used for many purposes, in particular waste disposal and materials storage. The principal types of waste and their suitability for underground disposal are described, considering principles for safe design, especially effects on hydrology. Hard rock storage of radioactive wastes and strategic materials is examined, with illustrations of many case histories from Scandinavia. Consequences and responsibilities resulting from disturbance of hydrological regimes are addressed. Selection of the rock mass is discussed, including tectonics and discontinuity effects. Finally, the safety aspects of repositories and the flexible design approach necessary for their achievement are examined.
915474 E~@neeringgeological investigations for planning and constructing of an underground laboratory for low-level radioactive wastes Langer, M Engng Geol V30, Nl, March 1991, P115-126 (paper to Applied Sciences for Low-level Radioactive and Chemical Wastes, Proc 28th International Geological Congress, Symposium E12) The Konrad iron ore mine in Germany has been proposed as a repository for non-heat-generating radioactive waste. Requirements of the repository site and engineering geological and safety analyses are discussed. The mine is in thick, low permeability geological formations. Subsidence data are available for over 20 years. The mine has been stable since it opened,and overlying marlstones have undergone deformation without failure. Stability of the proposed repository has been checked using the ADINA finite element code. Mining experience demonstrates the feasibility of the proposed excavations.
0 1991 Pergamon Press plc. Reproduction
not permitted