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Effect of water-level recoveries on fault creep, Houston, Texas
221A
In: Groundwater in Engineering Geology (papers to the 21st
876036 Investigations into the role of groundwater in promoting floor heave in coal mine gateroads Hart, P A In: Groundwater in Engineering Geology (papers to the 2tst
Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) P59-73. Publ London: Geologica[ Society, 1986
Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) Pl15126. Publ London: Geological Society. I986
It was proposed to supply additional water for the power station by abstraction from a Bunter sandstone aquifer which underlies the site. The groundwater conditions at the site and the design of the pumping tests undertaken are first described. Results of the tests were analysed and extrapolated to predict possible detrimental effects of large scale abstraction, surface deformations and differential settlement, and their effects on stability of foundations or surface or buried structures. The well was sited so as to minimise these effects.
Floor heave has been investigated at two South Wales collieries. The geology of the coal measures rocks is summarised. Geological parameters, discontinuities, mineralogy, and groundwater, and their effects on floor heave were studied. Underground site investigation, and laboratory and in situ testing of the effects of groundwater on mechanical parameters are described. The mineralogical and structural nature of the floor have the most significant effects on floor heave.
876O32 Effects and consequences of groundwater abstraction on foundations at Drax Power Station, North Yorkshire DoNe, M; Newman, R L
Chemical and physical changes due to water 876033 Hydraulic/chemical change during ground-water recharge by injection Hamlin, S N
Ground Water V25, N3, May-June 1987, P267-274 The effects of injecting reclaimed water to combat saline intrusion for an aquifer in Santa Clara County, California, are reported. Changes resulting from decrease in ionic strength of the groundwater, replacement of sodium ions by calcium ions at clay exchange sites, and dissolution of calcite were studied for both the clay layer and the lower aquifer. Factors affecting injection efficiency, particularly potential clogging mechanisms, were examined.
876034 Effect of water-level recoveries on fault creep, Houston, Texas Holzer, T L; Gabr3'sch, R K
Ground Water V25, N4, July-Aug 1987, P392-397 Fault creep stopped or slowed in part of the Houston land subsidence area where reduction in groundwater pumping has allowed partial recovery of water levels. It has continued in areas where water levels are still declining. Observations support the suspected relation between historical faulting and groundwater withdrawal, and suggest that fault movement and structural damage can be limited by groundwater level control.
876O35 Effects of groundwater on soils, rocks and construction materials: an introduction de Freitas, M H
In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) P10)106. Publ London: Geological Society, 1986
Properties of Rocks and Soils See also: 876279 876037 Some geotechnical aspects of Iraklion marls Huergo, P J; Christoulas, S G; Tsiambaos, G K
Bull Assoc Engng Geol V24, N1, Feb 1987, P93-I03 The marls from the Iraklion province of Crete have been classified in geological terms and the mineralogy and structure compared with other physical and mechanical properties. Activity, sensitivity, Atterberg limits, compression and shear strength, and swelling characteristics were examined. The long term behaviour of the marls in consolidation tests was assessed and a suitable rheologic model selected. 876038 Minestone fill in reinforced earth abutments Rainbow, A K M
Highways Transp V34, N6, June 1987, P25-31 Minestone, unburnt colliery waste, is prohibited from use in bridge abutments and retaining walls on highway contracts in the UK, although it is used in some continental countries. The physical and chemical properties of several British and one Belgian minestone have been determined. The materials passed the criteria set out in the DOT memorandum BE3,78. There was no tendency towards spontaneous combustion. 876039 Geotechnical properties of Mndena subsoil: a preliminary report Cancelli, A
Proc 3rd International Symposium on Land Subsidence, Venice, 19-25 March 1984 P337-346. Publ Wallingford: 1,4HS, 1986
Modena soils are predominantly alluvial clays interbedded with lenses of sandy gravel. Laboratory and field tests are reported. Friction-cone penetration tests were used for routine field investigation. The upper 10m and some deeper horizons Although not readily perceived, groundwater effects on geo- _ of the clay deposits were found to be overconsolidated, but logical or structural materials can occur at a rate significant to most clay layers were normally consolidated. Settlement can engineering, and these effects can be cumulative. Examples be accounted for by the consolidation of these compressible describe the dissolution of minerals from rocks, precipitation layers following the lowering of the water table. Available from highly saline groundwater, swelling, and the effects of geotechnical data are discussed, and a further, more detailed water content on rock strength. investigation proposed. © 1987 Pergamon Journals Ltd, Reproduction not permitted
In: Groundwater in Engineering Geology (papers to the 21st
876036 Investigations into the role of groundwater in promoting floor heave in coal mine gateroads Hart, P A In: Groundwater in Engineering Geology (papers to the 2tst
Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) P59-73. Publ London: Geologica[ Society, 1986
Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) Pl15126. Publ London: Geological Society. I986
It was proposed to supply additional water for the power station by abstraction from a Bunter sandstone aquifer which underlies the site. The groundwater conditions at the site and the design of the pumping tests undertaken are first described. Results of the tests were analysed and extrapolated to predict possible detrimental effects of large scale abstraction, surface deformations and differential settlement, and their effects on stability of foundations or surface or buried structures. The well was sited so as to minimise these effects.
Floor heave has been investigated at two South Wales collieries. The geology of the coal measures rocks is summarised. Geological parameters, discontinuities, mineralogy, and groundwater, and their effects on floor heave were studied. Underground site investigation, and laboratory and in situ testing of the effects of groundwater on mechanical parameters are described. The mineralogical and structural nature of the floor have the most significant effects on floor heave.
876O32 Effects and consequences of groundwater abstraction on foundations at Drax Power Station, North Yorkshire DoNe, M; Newman, R L
Chemical and physical changes due to water 876033 Hydraulic/chemical change during ground-water recharge by injection Hamlin, S N
Ground Water V25, N3, May-June 1987, P267-274 The effects of injecting reclaimed water to combat saline intrusion for an aquifer in Santa Clara County, California, are reported. Changes resulting from decrease in ionic strength of the groundwater, replacement of sodium ions by calcium ions at clay exchange sites, and dissolution of calcite were studied for both the clay layer and the lower aquifer. Factors affecting injection efficiency, particularly potential clogging mechanisms, were examined.
876034 Effect of water-level recoveries on fault creep, Houston, Texas Holzer, T L; Gabr3'sch, R K
Ground Water V25, N4, July-Aug 1987, P392-397 Fault creep stopped or slowed in part of the Houston land subsidence area where reduction in groundwater pumping has allowed partial recovery of water levels. It has continued in areas where water levels are still declining. Observations support the suspected relation between historical faulting and groundwater withdrawal, and suggest that fault movement and structural damage can be limited by groundwater level control.
876O35 Effects of groundwater on soils, rocks and construction materials: an introduction de Freitas, M H
In: Groundwater in Engineering Geology (papers to the 21st Annual Conference of the Engineering Group of the Geological Society, Sheffield, 15-19 September, 1985) P10)106. Publ London: Geological Society, 1986
Properties of Rocks and Soils See also: 876279 876037 Some geotechnical aspects of Iraklion marls Huergo, P J; Christoulas, S G; Tsiambaos, G K
Bull Assoc Engng Geol V24, N1, Feb 1987, P93-I03 The marls from the Iraklion province of Crete have been classified in geological terms and the mineralogy and structure compared with other physical and mechanical properties. Activity, sensitivity, Atterberg limits, compression and shear strength, and swelling characteristics were examined. The long term behaviour of the marls in consolidation tests was assessed and a suitable rheologic model selected. 876038 Minestone fill in reinforced earth abutments Rainbow, A K M
Highways Transp V34, N6, June 1987, P25-31 Minestone, unburnt colliery waste, is prohibited from use in bridge abutments and retaining walls on highway contracts in the UK, although it is used in some continental countries. The physical and chemical properties of several British and one Belgian minestone have been determined. The materials passed the criteria set out in the DOT memorandum BE3,78. There was no tendency towards spontaneous combustion. 876039 Geotechnical properties of Mndena subsoil: a preliminary report Cancelli, A
Proc 3rd International Symposium on Land Subsidence, Venice, 19-25 March 1984 P337-346. Publ Wallingford: 1,4HS, 1986
Modena soils are predominantly alluvial clays interbedded with lenses of sandy gravel. Laboratory and field tests are reported. Friction-cone penetration tests were used for routine field investigation. The upper 10m and some deeper horizons Although not readily perceived, groundwater effects on geo- _ of the clay deposits were found to be overconsolidated, but logical or structural materials can occur at a rate significant to most clay layers were normally consolidated. Settlement can engineering, and these effects can be cumulative. Examples be accounted for by the consolidation of these compressible describe the dissolution of minerals from rocks, precipitation layers following the lowering of the water table. Available from highly saline groundwater, swelling, and the effects of geotechnical data are discussed, and a further, more detailed water content on rock strength. investigation proposed. © 1987 Pergamon Journals Ltd, Reproduction not permitted