- Email: [email protected]
Quantitative relationship of grouting to the reduction of groundwater flow through rock foundations
150A
Groundwater control 826228 QUANTITATIVE RELATIONS~{IP OF GROUTING TO THE REDUCTION OF GROUNDWATER FLOW THROUGH ROCK FOUNDATIONS Klostern~n, M J; Wolff~ T F; Jahren, N G Bull Assoc Engng Geol, VI9, N1, Feb 1982, P15-24 A test grout p r o g r ~ e was carried out, involving the grouting of two areas using two different methods: a modified stage-grouting method and a modified stop-grouting method. Pregrouting and post grouting pumping tests were carried out from water wells completely surroumded by a 50ft grout curtain° This provided quantitative data on the amount of seepage occurring. A 97 per cent reduction in the specific capacity of the test well after grouting was established indicating that grouting effectively reduces groumdwater flow. Placing a grout curtain beneath a dam is the traditional way of reducing seepage and this quantitative study has demonstrated the method's elf ectivene ss.
Freezing 82622 9 GROUND n ~ z I ~ 198o (DEVELOP~WTS IN GEOTECHNICAL ENGINEERING, VOL 28 ) Frivik, P E (editor); Janbu, N (editor); Saetersdal, R (editor) Amsterdam: Elsevier, 1982, 420P Selected papers from the 2nd International Symposium on Ground Freezing, Trondheim, 24-26 June 1980 , reprinted from Engineering Geology, Vol 18, Nos 1-4, 1981, and previously abstracted in this Journal (see abstract 823192).
Site Investigation and Field Observation 826230 MONTAUBAN GOLD PROJECT: BREAKING NEW GROUND IN GEOLOGY AND FINANCING Flanagan, J T Can Min J, V103, N4, April 1982, P50-58 Describes the site investigation and funding of the Montauban gold mine, Canada. The site investigation included development of a theoretical model of the Montauban mineralisation, geophysical surveying, and drill coring for assayIng purposes. 826231 ACCOMPLISHMENTS IN EX~ORATION G E O C H ~ S T R Y : A CANADIAN PERSPECTIVE Thomson, I Can Min J, VI03, N4, April i ~ 2 , P78-81 An historic~l review of the use of geochemical surveys far site investigation in Car~da. 826232 MINERAL EYPLORATION TRENDs AND DEVELOPMENTS
sensing. Equipment ar~ techniques fc~ ground surveying are also reviewed: data processing, drillhole methods, e l e c t r ~ m e t i c methods, induced polarisation methods, magnetic methods, magnetotelluric methods, radioactivity, remote sensing, resistivity methods, and seismic methods. 826233 SITE INVESTIGATION: PART I. THE COSTS AND BENEFITS. P A R T 2. COST-BENEFIT COMPARISON Carvalho, J A R; de Freltas, M H Consult Engr, Vh6, N4, April 1982, Pll-12 (Part I), V46, NS, May 1982, P15-16 (Part 2) Reports a research project in which site investigations of a number of projects (concrete arch dams) were assessed amd the benefits of different types of site investigation work (reconnalsaamce, geophysics, trenches, shafts, galleries, boreholes, in situ tests, laboratory tests) evaluated subjectively as a Ix~centage of necessary design information. A 'return coefficient' is defined ard evaluated for the different types of work and the results are discussed briefly. This is not claimed to be a cost-benefit analysis. 826234 FIELDS OF STRESS - SC~E M E A ~ S OF THE IN-SITU STRESS IN A MEADOW IN THE CAM~RIDGESHIRE COUNTRYSIDE Dalton, J C P; Hawkins, P G Ground Engmg, VlS, N~, May 1982, P15-22 Measurements of in situ horizontal stress were made at 4 bore_holes, usimg the 2 types of Cambridge self-boring p r e s s ~ n e t a r s : the expansion pressuremeter and the load cell pressuremeter. These measuremexfGs were carried out to test the expansion pressuremeter which had been the subject of several complaints. 826235 REVISED CODE OF PRACTICE FOR SITE INVESTIGATIONS West, G Ground Engng, V15, N2, March 1982, P7 A report of a Joint meeting of the British Geotechnical Society and the Er~neering Group of the Geological Society to discuss the new code of practice for site investigations
(BS
5930).
826236 INTEGRATED MULTIDISCIPLINARY METHOD AS APPLIED TO APPALACHIA Scottl W R; Geyer, R A Oil Gas J, VS0, N30, 26 July 1982, P284-302 Describes the procedures for integrating the results obtained from seismic, gravity, magnetic field and geological surveys in c~der to evaluate the geological significance of the Appalachian Overthrust Belt. Models of several sreas are shown, produced by using the SEISGRAV program. 826237 COMPLEX GEOLOGIC CHARAcI'EMIZATION OF THE REPOSITORY ENVIRONMENT Harper, T R; Szymanski, J S Underground Space, V6, N4-5, Jan-April 1982, P229-233
IN 1981 Hood, P J Can Min J, VI03, NI, Jan 1982, P22-61 This includes a review of equipment and techniques for airborne geophysical surveying: airborne data acquisition and compilation systems, aeromagnetic systems, airborne electromagnetic systems, ~irborne radiometric systems, and remote
Discusses the time scale of concern in investigations for nuclear waste repositories and the complex and interdisciplinary approach necessary, and proposes an increased use of the geologic record in an ~ttempt to understand cha~ges during the life of the repository~
Groundwater control 826228 QUANTITATIVE RELATIONS~{IP OF GROUTING TO THE REDUCTION OF GROUNDWATER FLOW THROUGH ROCK FOUNDATIONS Klostern~n, M J; Wolff~ T F; Jahren, N G Bull Assoc Engng Geol, VI9, N1, Feb 1982, P15-24 A test grout p r o g r ~ e was carried out, involving the grouting of two areas using two different methods: a modified stage-grouting method and a modified stop-grouting method. Pregrouting and post grouting pumping tests were carried out from water wells completely surroumded by a 50ft grout curtain° This provided quantitative data on the amount of seepage occurring. A 97 per cent reduction in the specific capacity of the test well after grouting was established indicating that grouting effectively reduces groumdwater flow. Placing a grout curtain beneath a dam is the traditional way of reducing seepage and this quantitative study has demonstrated the method's elf ectivene ss.
Freezing 82622 9 GROUND n ~ z I ~ 198o (DEVELOP~WTS IN GEOTECHNICAL ENGINEERING, VOL 28 ) Frivik, P E (editor); Janbu, N (editor); Saetersdal, R (editor) Amsterdam: Elsevier, 1982, 420P Selected papers from the 2nd International Symposium on Ground Freezing, Trondheim, 24-26 June 1980 , reprinted from Engineering Geology, Vol 18, Nos 1-4, 1981, and previously abstracted in this Journal (see abstract 823192).
Site Investigation and Field Observation 826230 MONTAUBAN GOLD PROJECT: BREAKING NEW GROUND IN GEOLOGY AND FINANCING Flanagan, J T Can Min J, V103, N4, April 1982, P50-58 Describes the site investigation and funding of the Montauban gold mine, Canada. The site investigation included development of a theoretical model of the Montauban mineralisation, geophysical surveying, and drill coring for assayIng purposes. 826231 ACCOMPLISHMENTS IN EX~ORATION G E O C H ~ S T R Y : A CANADIAN PERSPECTIVE Thomson, I Can Min J, VI03, N4, April i ~ 2 , P78-81 An historic~l review of the use of geochemical surveys far site investigation in Car~da. 826232 MINERAL EYPLORATION TRENDs AND DEVELOPMENTS
sensing. Equipment ar~ techniques fc~ ground surveying are also reviewed: data processing, drillhole methods, e l e c t r ~ m e t i c methods, induced polarisation methods, magnetic methods, magnetotelluric methods, radioactivity, remote sensing, resistivity methods, and seismic methods. 826233 SITE INVESTIGATION: PART I. THE COSTS AND BENEFITS. P A R T 2. COST-BENEFIT COMPARISON Carvalho, J A R; de Freltas, M H Consult Engr, Vh6, N4, April 1982, Pll-12 (Part I), V46, NS, May 1982, P15-16 (Part 2) Reports a research project in which site investigations of a number of projects (concrete arch dams) were assessed amd the benefits of different types of site investigation work (reconnalsaamce, geophysics, trenches, shafts, galleries, boreholes, in situ tests, laboratory tests) evaluated subjectively as a Ix~centage of necessary design information. A 'return coefficient' is defined ard evaluated for the different types of work and the results are discussed briefly. This is not claimed to be a cost-benefit analysis. 826234 FIELDS OF STRESS - SC~E M E A ~ S OF THE IN-SITU STRESS IN A MEADOW IN THE CAM~RIDGESHIRE COUNTRYSIDE Dalton, J C P; Hawkins, P G Ground Engmg, VlS, N~, May 1982, P15-22 Measurements of in situ horizontal stress were made at 4 bore_holes, usimg the 2 types of Cambridge self-boring p r e s s ~ n e t a r s : the expansion pressuremeter and the load cell pressuremeter. These measuremexfGs were carried out to test the expansion pressuremeter which had been the subject of several complaints. 826235 REVISED CODE OF PRACTICE FOR SITE INVESTIGATIONS West, G Ground Engng, V15, N2, March 1982, P7 A report of a Joint meeting of the British Geotechnical Society and the Er~neering Group of the Geological Society to discuss the new code of practice for site investigations
(BS
5930).
826236 INTEGRATED MULTIDISCIPLINARY METHOD AS APPLIED TO APPALACHIA Scottl W R; Geyer, R A Oil Gas J, VS0, N30, 26 July 1982, P284-302 Describes the procedures for integrating the results obtained from seismic, gravity, magnetic field and geological surveys in c~der to evaluate the geological significance of the Appalachian Overthrust Belt. Models of several sreas are shown, produced by using the SEISGRAV program. 826237 COMPLEX GEOLOGIC CHARAcI'EMIZATION OF THE REPOSITORY ENVIRONMENT Harper, T R; Szymanski, J S Underground Space, V6, N4-5, Jan-April 1982, P229-233
IN 1981 Hood, P J Can Min J, VI03, NI, Jan 1982, P22-61 This includes a review of equipment and techniques for airborne geophysical surveying: airborne data acquisition and compilation systems, aeromagnetic systems, airborne electromagnetic systems, ~irborne radiometric systems, and remote
Discusses the time scale of concern in investigations for nuclear waste repositories and the complex and interdisciplinary approach necessary, and proposes an increased use of the geologic record in an ~ttempt to understand cha~ges during the life of the repository~