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Waterlogging of built-up areas
207A 885031 Investigation, analysis and control of shallow ground water conditions in flatland development projects Mortazavi, M H S; Clark, B R Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geoteclmical Engineering, Dublin, 31 ,4ug-3 Sept 1987 VI, P203-210. Publ Rotterdam: A A Balkema, 1987
885035 Development of a fresh water lens below a deposit of polluted spoil Verruijt, A; Eiprama, R; Van Tol, A F Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geoteduu'cal Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P347-350. Publ Rotterdam: A ,4 Balkema, 1987
Shallow groundwater table in alluvial lowlands in southern California gives problems in agricultural and infrastructural development. Field data were collected on seasonal water table, flow direction and pressure gradient of recharge source by monitoring of open pipe piezometers. Based on analysis of these data, control measures of a deep underdrain system to bleed off excess water were designed. Design procedures for drainage layout and sizing, materials specification, construction and maintenance are described.
It is proposed to dispose of about 10 million cubic m/year of polluted soft fine grained material dredged from Rotterdam harbour in a large basin constructed off the coast. As the waste consolidates, the fresh water expelled, being less dense than the salt water, will form a lens below the basin. The development of the lens and the transport of pollutants in the fresh/salt water system are analysed.
885032 Geotechnical problems in the course of constructing and usage of pumping plants in the land reclamation areas Muhovec, I; Corko, D; Lovrencic, D Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 ,4ug-3 Sept 1987 VI. P211-215. Publ Rotterdam." A A Balkema, 1987 In areas where continuous dewatering is essential, uninterrupted operation of pumping plants is vital. The foundati_ons of the PP may be adversely affected by significant water level drop, by piping of soils as fines contents are gradually removed by pumping, or by dynamic effects of vibration. Recommendations are made for founding PPs on deep piles in the most suitable sites, and for the use of well points during pit construction and relief wells as permanent protection for the PP. 885033 Human effects on groundwater Paal, T Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P313-316. Publ Rotterdam: A ,4 Balkema. 1987 Geohydrological tests based on 64 observation wells were undertaken to investigate unusually high groundwater levels in Budapest, 1977-1982. The homogeneity test, where relative mean water level of each well is compared with the average value of wells of geologically defined areas, is used to analyse results. 885034 Propagation of pollutants in an aquifer and controlling the effects on deep wells extracting drinking water Van der Veen, C Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 ,4ug-3 Sept 1987 VI, P343-345. Publ Rotterdam: A ,4 Balkema, 1987 Drinking water from deep wells around Hilversum, Holland, was thought liable to pollution due to the effects of waste water discharge, leaking sewers, and uncontrolled discharge of industrial waste water into the catchment area. A computer program was developed to model the progress of the pollution. Two remedial measures were considered, purification of the drinking water or the use of relief wells. The latter was chosen. The water pumped from the relief wells is stripped by aeration and activated carbon and used to maintain water balance in an adjacent area.
885036 Geological input to the study of point-source pollution of groundwater Villumsen, A Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P351-352. Publ Rotterdam: A ,4 Balkema, 1987 Traditional hydraulic studies often prove unreliable in predicting the speed and direction of polluted groundwater transport. This may be because of insufficient knowledge of the physical system. The conceptual geological model, which uses a deterministic approach to the description of hydrogeologic parameters, can improve this. Examples consider the vertical layering of an outwash plain, and joints which affect the permeability of a clay-fill deposit.
Chemical and physical changes due to water See also." 885366 885037 Backfill settlement of restored strip mine sites - case histories. Short communication Reed, S M; Hughes, D B; Singh, R N lnt J Min Geol Engng V5, N2, July 1987, P161-169 An analysis of backfill settlements in 3 restored strip mine sites was undertaken to investigate the stability of the backfill. Particular interest was in the effect of re-establishment of the groundwater regime on fill movement and the collapse settlements associated with groundwater recovery. Results indicate that settlement and groundwater levels are related, and that even after completion of groundwater recovery, significant movements may occur in shallow backfill for some time. 885038 Waterlogging of built-up areas Akinfiev, S A; Baulin, V V; Dzektser, E S Proc 5th International Congress International Association of Engineering Geology, Buenos ,4ires, 20-25 October 1986 I/3, P1889-1892. Publ Rotterdam: A ,4 Balkema, 1986 Hydrology of urban areas can be altered by barraging effects of structures on water flow, leakage from utilities, effects of surface coverage, and induced changes in soil properties. This can have negative effects on structures or ground use, due to settlement, swelling, slumping, or karst. Apparent and latent waterlogging can be described by rise in the water table or increase in moisture content, respectively. A specific criterion is proposed to estimate the potential of waterlogging in terms of initial, instantaneous, and critical water table (moisture content) at a given point, and additional infiltration.
© 1988 Pergamon Press plc. Reproduction not permitted
885035 Development of a fresh water lens below a deposit of polluted spoil Verruijt, A; Eiprama, R; Van Tol, A F Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geoteduu'cal Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P347-350. Publ Rotterdam: A ,4 Balkema, 1987
Shallow groundwater table in alluvial lowlands in southern California gives problems in agricultural and infrastructural development. Field data were collected on seasonal water table, flow direction and pressure gradient of recharge source by monitoring of open pipe piezometers. Based on analysis of these data, control measures of a deep underdrain system to bleed off excess water were designed. Design procedures for drainage layout and sizing, materials specification, construction and maintenance are described.
It is proposed to dispose of about 10 million cubic m/year of polluted soft fine grained material dredged from Rotterdam harbour in a large basin constructed off the coast. As the waste consolidates, the fresh water expelled, being less dense than the salt water, will form a lens below the basin. The development of the lens and the transport of pollutants in the fresh/salt water system are analysed.
885032 Geotechnical problems in the course of constructing and usage of pumping plants in the land reclamation areas Muhovec, I; Corko, D; Lovrencic, D Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 ,4ug-3 Sept 1987 VI. P211-215. Publ Rotterdam." A A Balkema, 1987 In areas where continuous dewatering is essential, uninterrupted operation of pumping plants is vital. The foundati_ons of the PP may be adversely affected by significant water level drop, by piping of soils as fines contents are gradually removed by pumping, or by dynamic effects of vibration. Recommendations are made for founding PPs on deep piles in the most suitable sites, and for the use of well points during pit construction and relief wells as permanent protection for the PP. 885033 Human effects on groundwater Paal, T Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P313-316. Publ Rotterdam: A ,4 Balkema. 1987 Geohydrological tests based on 64 observation wells were undertaken to investigate unusually high groundwater levels in Budapest, 1977-1982. The homogeneity test, where relative mean water level of each well is compared with the average value of wells of geologically defined areas, is used to analyse results. 885034 Propagation of pollutants in an aquifer and controlling the effects on deep wells extracting drinking water Van der Veen, C Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 ,4ug-3 Sept 1987 VI, P343-345. Publ Rotterdam: A ,4 Balkema, 1987 Drinking water from deep wells around Hilversum, Holland, was thought liable to pollution due to the effects of waste water discharge, leaking sewers, and uncontrolled discharge of industrial waste water into the catchment area. A computer program was developed to model the progress of the pollution. Two remedial measures were considered, purification of the drinking water or the use of relief wells. The latter was chosen. The water pumped from the relief wells is stripped by aeration and activated carbon and used to maintain water balance in an adjacent area.
885036 Geological input to the study of point-source pollution of groundwater Villumsen, A Proc Ninth European Conference on Soil Mechanics and Foundation Engineering, Groundwater Effects in Geotechnical Engineering, Dublin, 31 Aug-3 Sept 1987 VI, P351-352. Publ Rotterdam: A ,4 Balkema, 1987 Traditional hydraulic studies often prove unreliable in predicting the speed and direction of polluted groundwater transport. This may be because of insufficient knowledge of the physical system. The conceptual geological model, which uses a deterministic approach to the description of hydrogeologic parameters, can improve this. Examples consider the vertical layering of an outwash plain, and joints which affect the permeability of a clay-fill deposit.
Chemical and physical changes due to water See also." 885366 885037 Backfill settlement of restored strip mine sites - case histories. Short communication Reed, S M; Hughes, D B; Singh, R N lnt J Min Geol Engng V5, N2, July 1987, P161-169 An analysis of backfill settlements in 3 restored strip mine sites was undertaken to investigate the stability of the backfill. Particular interest was in the effect of re-establishment of the groundwater regime on fill movement and the collapse settlements associated with groundwater recovery. Results indicate that settlement and groundwater levels are related, and that even after completion of groundwater recovery, significant movements may occur in shallow backfill for some time. 885038 Waterlogging of built-up areas Akinfiev, S A; Baulin, V V; Dzektser, E S Proc 5th International Congress International Association of Engineering Geology, Buenos ,4ires, 20-25 October 1986 I/3, P1889-1892. Publ Rotterdam: A ,4 Balkema, 1986 Hydrology of urban areas can be altered by barraging effects of structures on water flow, leakage from utilities, effects of surface coverage, and induced changes in soil properties. This can have negative effects on structures or ground use, due to settlement, swelling, slumping, or karst. Apparent and latent waterlogging can be described by rise in the water table or increase in moisture content, respectively. A specific criterion is proposed to estimate the potential of waterlogging in terms of initial, instantaneous, and critical water table (moisture content) at a given point, and additional infiltration.
© 1988 Pergamon Press plc. Reproduction not permitted