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Experimental study to evaluate freezing earth pressure
93A 843109 Assessment of the effect of seismic disturbance on the natural environment (In Polish) Dubinski, J; Gerlach, Z Przegl Gorn V39, N3, March 1983, P135-142 A new method for the assessment of seismic disturbances is presented based on the analysis of data obtained from microseismic observations. Quantitative relationships are determined which make it possible to ascribe to every dynamic seismic phenomenon occurring within the rock mass a value for the degree of intensity of vibration at any distance from its epicentre. The assessment is based on quantitative and qualitative relations between the intensity of vibrations caused by the seismic event and the value of its effects on various aspects of the natural environment.
Frost action, permafrost and frozen ground See also: 843299 843110 Downward water movement into frozen ground, western arctic coast, Canada MacKay, J R Can d Earth Sci V20, N1, Jan 1983, P120-134 843111 Experimental study to evaluate freezing earth pressure Enokido, M Soils Found V23, N3, Sept 1983, PI-12 Describes the results of laboratory and field tests to evaluate freezing earth pressure in a stiff cohesive soil in Japan. The study comprised a preliminary laboratory test carried out to obtain an approximate value of freezing earth pressure and subsequently a field test on a model tank 2m in diameter and lm high at the site of a proposed underground Liquified Natural Gas tank.
843115 Analysis of water losses in basaltic rock joints Da Cruz, P T; De Quadros, E F Proc 5th Congress of the International Society for Rock Mechanics, Melbourne, 10-15 April 1983 V1, PBI19-BI23. Publ Rotterdam: A. A. Balkema, 1983 A modified water loss test, the multiple stages pressure test, is proposed to investigate water flow in rock discontinuities. Six tests were performed at the Nova Avanhandava dam site, Sao Paulo, Brazil and the results compared with results from hydraulic conductivity tests performed on three types of rock fractures with varying surface roughness. The concept of "equivalent opening' is introduced for flow prediction and analysis.
Groundwater 843116 Interference and pulse testing - a review Kamal, M M J Pet Teclmol V35, N13, Dec 1983, P2257-2270 A review of multiple-well interference and pulse tests. 50 refs. 843117 Unsaturated soil water flow Smith, R E Revs Geophys Space Phys V21, N3, April 1983, P755-760 Summarizes US research in unsaturated soil water flow and includes reviews of: porous material properties, numerical solutions of boundary value flow problems, vapour and heat transport, variability in unsaturated flow and ecological models. 100 refs. 843118 Groundwater: a review Bredehoeft, J D Revs Geophys Space Phys V21, N3, April 1983, P760-765
Hydrogeology
Reviews groundwater circulation with regard to contamination in densely populated areas, where dispersion is slow and cleanup of contaminated water is expensive. 106 refs.
843112 Slope hydrology as influenced by thawing of the active layer, Resolute, N.W.T Woo, M K; Steer, P Can J Earth Sci V20, N6, June 1983, P978-986
Measurement of water pressure and its effects
843113 New pressure transient analysis methods for naturally fractured reservoirs Serra, K; Reynolds, A C; Raghavan, R J Pet Technoi V35, NIl, Oct 1983, P1902-1914 843114 New pressure transient analysis methods for naturally fractured reservoirs Serra, K; Reynolds, A C; Raghavan, R J Pet Teclmoi V35, N13, Dec 1983, P2271-2283 Presents new methods for analysing pressure drawdown and buildup data obtained at wells producing naturally fractured reservoirs. The model used assumes unsteady-state fluid transfer from the matrix system to the fracture system. A new flow regime is identified, which explains field behaviour that has been considered unusual.
843119 Neotectonic movement and subsidence caused by piezometric decline Prokopovich, N P Bull Assoc Engng Geol V20, N4, Nov 1983, P393-404 843120 Significance of the piezometer in rock engineering Huder, J; Amberg, G Proc 5tb Congress of the International Society for Rock Mechanics, Melbourne, 10-15 April 1983 V1, PB99-BI04. Publ Rotterdam." A. A. Balkema. 1983 Successful reduction in groundwater pressure can only be achieved with knowledge of groundwater conditions, piezometric measurements and associated measuring systems. Three examples of groundwater effects are briefly presented: slope instability at Disentis caused by dammed up water, an increase in fissuring at the Pradella hydro-electric power plant and an extreme increase in rock pressure in the Isla Beila Tunnel, Rothenbrunnen. In each case boreholes successfully relieved the pressure. A brief review of the effect of permeability on a number of measuring systems is also presented.
Frost action, permafrost and frozen ground See also: 843299 843110 Downward water movement into frozen ground, western arctic coast, Canada MacKay, J R Can d Earth Sci V20, N1, Jan 1983, P120-134 843111 Experimental study to evaluate freezing earth pressure Enokido, M Soils Found V23, N3, Sept 1983, PI-12 Describes the results of laboratory and field tests to evaluate freezing earth pressure in a stiff cohesive soil in Japan. The study comprised a preliminary laboratory test carried out to obtain an approximate value of freezing earth pressure and subsequently a field test on a model tank 2m in diameter and lm high at the site of a proposed underground Liquified Natural Gas tank.
843115 Analysis of water losses in basaltic rock joints Da Cruz, P T; De Quadros, E F Proc 5th Congress of the International Society for Rock Mechanics, Melbourne, 10-15 April 1983 V1, PBI19-BI23. Publ Rotterdam: A. A. Balkema, 1983 A modified water loss test, the multiple stages pressure test, is proposed to investigate water flow in rock discontinuities. Six tests were performed at the Nova Avanhandava dam site, Sao Paulo, Brazil and the results compared with results from hydraulic conductivity tests performed on three types of rock fractures with varying surface roughness. The concept of "equivalent opening' is introduced for flow prediction and analysis.
Groundwater 843116 Interference and pulse testing - a review Kamal, M M J Pet Teclmol V35, N13, Dec 1983, P2257-2270 A review of multiple-well interference and pulse tests. 50 refs. 843117 Unsaturated soil water flow Smith, R E Revs Geophys Space Phys V21, N3, April 1983, P755-760 Summarizes US research in unsaturated soil water flow and includes reviews of: porous material properties, numerical solutions of boundary value flow problems, vapour and heat transport, variability in unsaturated flow and ecological models. 100 refs. 843118 Groundwater: a review Bredehoeft, J D Revs Geophys Space Phys V21, N3, April 1983, P760-765
Hydrogeology
Reviews groundwater circulation with regard to contamination in densely populated areas, where dispersion is slow and cleanup of contaminated water is expensive. 106 refs.
843112 Slope hydrology as influenced by thawing of the active layer, Resolute, N.W.T Woo, M K; Steer, P Can J Earth Sci V20, N6, June 1983, P978-986
Measurement of water pressure and its effects
843113 New pressure transient analysis methods for naturally fractured reservoirs Serra, K; Reynolds, A C; Raghavan, R J Pet Technoi V35, NIl, Oct 1983, P1902-1914 843114 New pressure transient analysis methods for naturally fractured reservoirs Serra, K; Reynolds, A C; Raghavan, R J Pet Teclmoi V35, N13, Dec 1983, P2271-2283 Presents new methods for analysing pressure drawdown and buildup data obtained at wells producing naturally fractured reservoirs. The model used assumes unsteady-state fluid transfer from the matrix system to the fracture system. A new flow regime is identified, which explains field behaviour that has been considered unusual.
843119 Neotectonic movement and subsidence caused by piezometric decline Prokopovich, N P Bull Assoc Engng Geol V20, N4, Nov 1983, P393-404 843120 Significance of the piezometer in rock engineering Huder, J; Amberg, G Proc 5tb Congress of the International Society for Rock Mechanics, Melbourne, 10-15 April 1983 V1, PB99-BI04. Publ Rotterdam." A. A. Balkema. 1983 Successful reduction in groundwater pressure can only be achieved with knowledge of groundwater conditions, piezometric measurements and associated measuring systems. Three examples of groundwater effects are briefly presented: slope instability at Disentis caused by dammed up water, an increase in fissuring at the Pradella hydro-electric power plant and an extreme increase in rock pressure in the Isla Beila Tunnel, Rothenbrunnen. In each case boreholes successfully relieved the pressure. A brief review of the effect of permeability on a number of measuring systems is also presented.