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Influence of vertical fractures intercepting active and observation wells on interference tests
165A
age comditions d~rirg bo~h the consolidation a~d shear l~hases nf the test. Ur~rained amd drained shear strergth psrsmeters have been measured within bcreholes augered in a sc@t sensitive clay deposit. Auth. 835293 V~±IOAL SOIL EXTENSOMETER Selig, E T; Reinlg, I G Geotech Test J, V~, N3-~, Sept-Dec 1982, P76 -84 A vertical soil extensometer was developed to measure differential soil movement between 2 reference points. The extenscmeter inc~Ix~ates telescopir~ casing sections installed in a bc~ehole with the aid of a section spacimg device. 83529~ SUGGEbu~ PRACTICE FOR P R E S S ~ ' ± ~ TESTIN~ IN SOILS Wirfcer, E Geotech Test J, VS, N3-4, Sept-Dec 1982,
~5-~ A standard Iractice is suggested fc~ ~essuremeter testing in soils that is based on the ~ocedures developed by Menard amd adopted by mar~ crgsaxlsations add firms in the US. The l~actice describes the apparatus, calibration, testing l~Oced~e, calculations, and l~esentation ~f data. Auth. 835295 AR~MALGUS IM~RE PRESSURES IN MISSISSIPPI DELTA SEDIMENTS: GAS AND E L E C T R I C A L EFFECTS Hulbert, M H; Bemmett, R H Marine Geotechnol, V~, NI, i~82~ P~I-62 It is shown that the observed differences in pare l~essures in gassy Mississippi Delta sediments indicated by transducers with coarse filters arg with fine filters is unlikely to be due to one transducer responding to p~re water pressure and one to pare gas l~essure. Laberatc~y studies suggest that possible sources of this anomaly include electroosmosis and electrolytlc l~oduction of hydrogen. 835296 INTEGRATIN~ A GROUND WATER DATA RECONNAISSANCE PROGRAM INTO A M I N ~ EXPLORATION PROGRAM Earn°man, J M; Vandell, T D Min Emgrg, V35, N2, Feb 1983, P137-139 Outlines what typical baseline hydrological data are needed amd describes how it can easily be obtained durl~g explc~ation drilling. 835297 INFLUENCE OF V]~TIqCAL FRACTURES INTERCEPTING ACTIVE AND ~BSERVATION W~3.S ON I ~ E R F ~ E TESTS Mousli, N A; Raghavan, R; Cinco-Ley, H SOc Pet Engr J, V22, N6, Dec 1982, P 9 3 3 - ~ The paper reviews l~essure behaviour at an observation well intercepted by a vertical fracture. It is shown that a vertical fracture at the observation well has a significant influence on the ~ressure response at that well, and therefore wellbore conditions at the observation well must be considered. Conditions are delineated under which the fracture at the observation well may influence an interf~ence test. The existence cf the fracture would have to be ~r evlously known. 835298 ROCK MECHANICS TO F ~ F A MINE PRODUCTIVE Yu, T R Can Min J, VlO~, N~, April 1983, ~ i - ~
Rock mechanics instruments used at Midd Creek Mine, Canada, to monitc~ the ground stability are described. Geodlmeters, extensometers, displacement gat~Ees, stress meas1:rememt devices and vibration monitc~ing were all used. 8 3 5 2 ~ G R O U N D SURVEY TECHNI~UES Can Min J, VI0~, NI, Jan 1983, P27-4~ A review ~eyi~g methods, methods, magnetic
of Instrtm~nts on the market fer ground and loggimg, inclmdlrg drillhole electromagnetic methods, geochemical gravity methods, induced polarisation, and seismic methods.
835300 FIELD EVALUATION OF METHANE MIGRATION PREDICTIONS McOmber, R M; Mocre, C A; Beatty, B W Can Geotech J, rig, N3, Aug 1983, P239-2h9 Methane migration field data obtained at the Mississauga landfill, Ontario, Canada were used to verify cmmputer model Iredictlons. The field obs~x.=tions were c~mpared with ~redictions f~r both diffusional and combined ~essurediffusional gas flow. In the area within 25m of the landfill the predicti~ms agreed well with observations, beyond 25m observed values exceeded ~edictions.
835301 REPORT OF THE IAEG CC~@CISSION ON SITE INVESTIGATIONS Price, D G BUll Int AssOc Eng~g Geol, N24, Dec 1981, P18p-226 A report on the fur~amentals of site investigation werk intended to serve as an international guide to gored practice in site investigations. lucl~ies a substantial list of references for obtainimg more detailed information about particular site investigation techniques. 301 refs. 835302 ENGINEERI~ CONTRACT, SITE INVESTIGATION AND SUI~ACE ~ N T S IN ~ . T . T ' N ~ WORKS At-tewell, P B In: Sc@t-Grourd ~ l l m g , P5-12. Publ Rotterdam: A. A. Balkema, 1981 Tunmellirg ccm~a~ts ahould take due account of the quantity and q,~1~ty af site investigation information. For ir~an tmvaR1 s in soil, site investigation ahould immlude a predlction c~ s u r f a c e settlement azxl i t s d e r i v a t i v e s %ogsthe~- vlth an appraisal of the effects of that d i s t ~ a r m e on b-SAdimgs. A method of ~ e • ietlc~ amd two methods of data l~esentatlon are suggested. 835303 LOI~ TERM C O I T I O N
~RF_.ATH THE TEST FILLS
AT VASBYj SW~EN m~m~ Y c E Swedish Oeoteehnical Institute repcrt NI3,
1981, l~P Two large-scale test fills ware establlshed on soft Swedish clayb in i ~ 5 amd 19~7, to investigate the Iorg-term settlement characteristics ef the subsoil. Settlement refereuce points were established at various depths beneath the fills end were observed periodically. Pete pressure observations were made, urdrained shear stremgth beneath and beyond the fills was meamred, amd also the variation in water content in the clay deposit. The observations have been found to be incompatible w~th a simple theory of consolidation. An hypothesis to explain all observations is ;resented which envisages a collapsible clay structure.
age comditions d~rirg bo~h the consolidation a~d shear l~hases nf the test. Ur~rained amd drained shear strergth psrsmeters have been measured within bcreholes augered in a sc@t sensitive clay deposit. Auth. 835293 V~±IOAL SOIL EXTENSOMETER Selig, E T; Reinlg, I G Geotech Test J, V~, N3-~, Sept-Dec 1982, P76 -84 A vertical soil extensometer was developed to measure differential soil movement between 2 reference points. The extenscmeter inc~Ix~ates telescopir~ casing sections installed in a bc~ehole with the aid of a section spacimg device. 83529~ SUGGEbu~ PRACTICE FOR P R E S S ~ ' ± ~ TESTIN~ IN SOILS Wirfcer, E Geotech Test J, VS, N3-4, Sept-Dec 1982,
~5-~ A standard Iractice is suggested fc~ ~essuremeter testing in soils that is based on the ~ocedures developed by Menard amd adopted by mar~ crgsaxlsations add firms in the US. The l~actice describes the apparatus, calibration, testing l~Oced~e, calculations, and l~esentation ~f data. Auth. 835295 AR~MALGUS IM~RE PRESSURES IN MISSISSIPPI DELTA SEDIMENTS: GAS AND E L E C T R I C A L EFFECTS Hulbert, M H; Bemmett, R H Marine Geotechnol, V~, NI, i~82~ P~I-62 It is shown that the observed differences in pare l~essures in gassy Mississippi Delta sediments indicated by transducers with coarse filters arg with fine filters is unlikely to be due to one transducer responding to p~re water pressure and one to pare gas l~essure. Laberatc~y studies suggest that possible sources of this anomaly include electroosmosis and electrolytlc l~oduction of hydrogen. 835296 INTEGRATIN~ A GROUND WATER DATA RECONNAISSANCE PROGRAM INTO A M I N ~ EXPLORATION PROGRAM Earn°man, J M; Vandell, T D Min Emgrg, V35, N2, Feb 1983, P137-139 Outlines what typical baseline hydrological data are needed amd describes how it can easily be obtained durl~g explc~ation drilling. 835297 INFLUENCE OF V]~TIqCAL FRACTURES INTERCEPTING ACTIVE AND ~BSERVATION W~3.S ON I ~ E R F ~ E TESTS Mousli, N A; Raghavan, R; Cinco-Ley, H SOc Pet Engr J, V22, N6, Dec 1982, P 9 3 3 - ~ The paper reviews l~essure behaviour at an observation well intercepted by a vertical fracture. It is shown that a vertical fracture at the observation well has a significant influence on the ~ressure response at that well, and therefore wellbore conditions at the observation well must be considered. Conditions are delineated under which the fracture at the observation well may influence an interf~ence test. The existence cf the fracture would have to be ~r evlously known. 835298 ROCK MECHANICS TO F ~ F A MINE PRODUCTIVE Yu, T R Can Min J, VlO~, N~, April 1983, ~ i - ~
Rock mechanics instruments used at Midd Creek Mine, Canada, to monitc~ the ground stability are described. Geodlmeters, extensometers, displacement gat~Ees, stress meas1:rememt devices and vibration monitc~ing were all used. 8 3 5 2 ~ G R O U N D SURVEY TECHNI~UES Can Min J, VI0~, NI, Jan 1983, P27-4~ A review ~eyi~g methods, methods, magnetic
of Instrtm~nts on the market fer ground and loggimg, inclmdlrg drillhole electromagnetic methods, geochemical gravity methods, induced polarisation, and seismic methods.
835300 FIELD EVALUATION OF METHANE MIGRATION PREDICTIONS McOmber, R M; Mocre, C A; Beatty, B W Can Geotech J, rig, N3, Aug 1983, P239-2h9 Methane migration field data obtained at the Mississauga landfill, Ontario, Canada were used to verify cmmputer model Iredictlons. The field obs~x.=tions were c~mpared with ~redictions f~r both diffusional and combined ~essurediffusional gas flow. In the area within 25m of the landfill the predicti~ms agreed well with observations, beyond 25m observed values exceeded ~edictions.
835301 REPORT OF THE IAEG CC~@CISSION ON SITE INVESTIGATIONS Price, D G BUll Int AssOc Eng~g Geol, N24, Dec 1981, P18p-226 A report on the fur~amentals of site investigation werk intended to serve as an international guide to gored practice in site investigations. lucl~ies a substantial list of references for obtainimg more detailed information about particular site investigation techniques. 301 refs. 835302 ENGINEERI~ CONTRACT, SITE INVESTIGATION AND SUI~ACE ~ N T S IN ~ . T . T ' N ~ WORKS At-tewell, P B In: Sc@t-Grourd ~ l l m g , P5-12. Publ Rotterdam: A. A. Balkema, 1981 Tunmellirg ccm~a~ts ahould take due account of the quantity and q,~1~ty af site investigation information. For ir~an tmvaR1 s in soil, site investigation ahould immlude a predlction c~ s u r f a c e settlement azxl i t s d e r i v a t i v e s %ogsthe~- vlth an appraisal of the effects of that d i s t ~ a r m e on b-SAdimgs. A method of ~ e • ietlc~ amd two methods of data l~esentatlon are suggested. 835303 LOI~ TERM C O I T I O N
~RF_.ATH THE TEST FILLS
AT VASBYj SW~EN m~m~ Y c E Swedish Oeoteehnical Institute repcrt NI3,
1981, l~P Two large-scale test fills ware establlshed on soft Swedish clayb in i ~ 5 amd 19~7, to investigate the Iorg-term settlement characteristics ef the subsoil. Settlement refereuce points were established at various depths beneath the fills end were observed periodically. Pete pressure observations were made, urdrained shear stremgth beneath and beyond the fills was meamred, amd also the variation in water content in the clay deposit. The observations have been found to be incompatible w~th a simple theory of consolidation. An hypothesis to explain all observations is ;resented which envisages a collapsible clay structure.