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Case history of the effect of mine subsidence on a concrete arch bridge in northern west Virginia
124A 863370 Ground settlement and deformation characteristics above . undermined areas: experiences from the Eastern US Coalfields Karmis, M: Ha?cocks. C: Triplett. T Proc 4th Australia-New Zealand Conference on
(our dlffercn T, :r:nch g¢orvc'r]c~ ii;~ :;-c~'cnc, ?r:,,,cd ;]'o~c effective in red:crag circumferential p~pc stressc~ than [ong~tddinal stresses. The longer and deeper trenches ~erc most effective for pipe s:ress reduction
Geomechanics, Perth, Western Austrah'a, 14-18 ,~/la), 1984 [2. P647-653. Publ Barton Inst o f Engineers. 198.1 To ease problems caused by subsidence in the Appalachian region, an empirical subsidence prediction technique was developed from analysis of 35 case studies collected within the coalfield. From this subsidence prediction technique, a strain prediction model was formulated, using empirically, theoretically and mathematically derived principles, which is examined. These methods can be used to predict ground movements as part of the mining plan to evaluate and remedy any environmentally, legally or economically unacceptable situations. 863371 Case history of the effect of mine subsidence on a concrete arch bridge in northern west Virginia Alke, R B; Thompson, B L
In: Rock Mechanics in Productitity and Protection (Proceedings of the Twenty-Fifth Symposium on Rock Mechanics, Eranston, Illinois. 25-27 June 1984) P907-913. Publ New York. AIME. 1984 A coal seam of height 2.47m and depth approximately 140m, underlying the Jakes Run Bridge, Virginia, USA, was worked by longwall mining. Calculated settlement of 1.219m was exceeded by 3.3%. Only temporary support was needed at the bridge, which remained in service at all times.
Subjects Peripheral to Geomechanics Fracture mechanics 863373 Continuum model for dynamic tensile microfracture and fragmentation Seaman. L: Curran, D R: Murri, W J J Appl ;Wech (Trans ,4SME Ser E) [52, :V3. Sept 1983, P593-600 A model has been developed to represent complete brittle microfracturing and fragmentation under high impact loading. It contains nucleation, growth, fragmentation, damage-caused stress relaxation processes and a stress solution procedure suited to nonlinear behaviour. Multiple loadings, unloadings and reconsolidation can be accommodated. Although not expected to match all materials, the model has been used to represent fracture in a wide range of materials, including geomechanicaI materials such as oil shale and quartz.
Influence of dynamic loads 863372 Trench effects on Mast-induced pipeline stresses Esparza, E D J Geotech Engng Div A S C E V I I I . NIO, Oct 1985. P11931210 Models tests were carried out to examine the effects of open trenches on blast induced stresses in buried pipelines. Initial testing without a trench produced circumferential and longitudinal stresses which agreed well with those predicted by previously derived equations. These were followed by tests with
i~ 1986 Pergamon Press Ltd. Reproduction not permitted
(our dlffercn T, :r:nch g¢orvc'r]c~ ii;~ :;-c~'cnc, ?r:,,,cd ;]'o~c effective in red:crag circumferential p~pc stressc~ than [ong~tddinal stresses. The longer and deeper trenches ~erc most effective for pipe s:ress reduction
Geomechanics, Perth, Western Austrah'a, 14-18 ,~/la), 1984 [2. P647-653. Publ Barton Inst o f Engineers. 198.1 To ease problems caused by subsidence in the Appalachian region, an empirical subsidence prediction technique was developed from analysis of 35 case studies collected within the coalfield. From this subsidence prediction technique, a strain prediction model was formulated, using empirically, theoretically and mathematically derived principles, which is examined. These methods can be used to predict ground movements as part of the mining plan to evaluate and remedy any environmentally, legally or economically unacceptable situations. 863371 Case history of the effect of mine subsidence on a concrete arch bridge in northern west Virginia Alke, R B; Thompson, B L
In: Rock Mechanics in Productitity and Protection (Proceedings of the Twenty-Fifth Symposium on Rock Mechanics, Eranston, Illinois. 25-27 June 1984) P907-913. Publ New York. AIME. 1984 A coal seam of height 2.47m and depth approximately 140m, underlying the Jakes Run Bridge, Virginia, USA, was worked by longwall mining. Calculated settlement of 1.219m was exceeded by 3.3%. Only temporary support was needed at the bridge, which remained in service at all times.
Subjects Peripheral to Geomechanics Fracture mechanics 863373 Continuum model for dynamic tensile microfracture and fragmentation Seaman. L: Curran, D R: Murri, W J J Appl ;Wech (Trans ,4SME Ser E) [52, :V3. Sept 1983, P593-600 A model has been developed to represent complete brittle microfracturing and fragmentation under high impact loading. It contains nucleation, growth, fragmentation, damage-caused stress relaxation processes and a stress solution procedure suited to nonlinear behaviour. Multiple loadings, unloadings and reconsolidation can be accommodated. Although not expected to match all materials, the model has been used to represent fracture in a wide range of materials, including geomechanicaI materials such as oil shale and quartz.
Influence of dynamic loads 863372 Trench effects on Mast-induced pipeline stresses Esparza, E D J Geotech Engng Div A S C E V I I I . NIO, Oct 1985. P11931210 Models tests were carried out to examine the effects of open trenches on blast induced stresses in buried pipelines. Initial testing without a trench produced circumferential and longitudinal stresses which agreed well with those predicted by previously derived equations. These were followed by tests with
i~ 1986 Pergamon Press Ltd. Reproduction not permitted